电动滑板车

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213430. （2023•周至六中•高一下期中） Shared e-scooters （电动滑板车） are becoming common across Australia.While they may offer a low-carbon option for tourism，do they benefit tourist cities？Our research team at Griffith University's Cities Research Institute partnered with Neuron Mobility to conduct a survey of Townsville tourists between 2020 and 2021.
   We analyzed the visiting e-scooter users' travel and spending behaviors.Though their e-scooter hire costs were identical （一样的），the visitors who rode the e-scooters the most spent most money in Townsville.
   The active e-scooter users completed average 11 e-scooter trips，covering nearly 26 kilometers each while in Townsville.Many of these trips would have been completed by walking if e-scooters were unavailable.But they would have taken longer to complete each trip on foot，thus limiting the total number of destinations visited.Some other trips wouldn't have occurred at all.One user commented， "We enjoyed being able to travel to areas that we would not normally have been to or were too far to walk in a reasonable amount of time."
   Many of these users said they did not need to use a car thanks to the e-scooters.This meant they were able to travel along the streets in Townsville without being trapped in the already busy roadways.
   Across all the e-scooter users surveyed，most had never ridden an e-scooter before，but 91 percent reported they could ride it easily.Confirming the positive effect of e-scooters on both city image and visitor experience，93 percent said they enjoyed travelling within Townsville.Besides，of all the visitors，active users spent more money on restaurants and cafes than the conditions without using e-scooters.Light users also spent a greater amount of money，mainly on shopping and services.
   Henry，an-scooter user said， "The weekly pass was extremely cost-effective.I highly recommend it and I will use e-scooters again." In fact，tourist cities like Townsville that adopt e-scooter sharing are promoting their image and tourism economy.

（1）What will happen to the place where e-scooters are available？
A．Visitors can visit more attractions.
B．No trips will be finished on foot.
C．Visitors will be charged less money.
D．It will take visitors longer to get around.
（2）What can be known about travelling in Townsville by car？
A．Cars will make tourists miss some views.
B．Visitors will be easily stuck in traffic jams.
C．Cars will take visitors to many places of interest.
D．Visitors will feel relaxed and comfortable to travel.
（3）Why does the author mention the expenses of the visitors？
A．To confirm e-scooters are easy to handle.
B．To describe tourists' experiences in Townsville.
C．To show e-scooters help promote local economy.
D．To compare spending ways between active and light users.
（4）Which can be a suitable title for the text？
A．Tourism Booms in Townsville Thanks to E-scooters.
B．Townsville Encourages Its People to Use E-scooters.
C．Tourists Benefit from Local Traditional Transportation.
D．E-scooters Are Becoming the Main Means of Transportation.

共享时间:2023-05-11 难度:3

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[考点]

经济，自然科学研究成果，说明文，

[答案]

（1）﹣（4）ABCA

[解析]

（1）细节理解题。根据第三段The active e﹣scooter users completed average 11 e﹣scooter trips，covering nearly 26 kilometers each while in Townsville.Many of these trips would have been completed by walking if e﹣scooters were unavailable.But they would have taken longer to complete each trip on foot，thus limiting the total number of destinations visited.Some other trips wouldn't have occurred at all. （活跃的电动滑板车用户在汤斯维尔平均完成了11次电动滑板车旅行，每次旅行近26公里。如果没有电动滑板车的话，很多这样的旅行都是步行完成的。但他们每次步行完成旅行的时间会更长，从而限制了游览目的地的总数。其他一些旅行根本就不会发生。）可知，有电动滑板车的地方，游客可以游览更多的景点。故选A。
（2）推理判断题。根据第四段Many of these users said they did not need to use a car thanks to the e﹣scooters.This meant they were able to travel along the streets in Townsville without being trapped in the already busy roadways.（这些用户中的许多人表示，多亏了电动滑板车，他们不需要使用汽车。这意味着他们可以沿着汤斯维尔的街道旅行，而不会被困在已经繁忙的道路上。）可知，汤斯维尔开的街道很繁忙，在汤斯维尔开车的话，很容易被堵在路上。故选B。
（3）推理判断题。根据倒数第二段Besides，of all the visitors，active users spent more money on restaurants and cafes than the conditions without using e﹣scooters.Light users also spent a greater amount of money，mainly on shopping and services.（此外，在所有的游客中，活跃用户在餐厅和咖啡馆的花费比在没有使用电动滑板车的情况下更多。轻度用户的消费也更多，主要是在购物和服务上。）以及最后一段In fact，tourist cities like Townsville that adopt e﹣scooter sharing are promoting their image and tourism economy.（事实上，像汤斯维尔这样采用共享电动滑板车的旅游城市正在提升城市形象和旅游经济。）可知，游客在使用电动滑板车的情况下会比不使用时消费更多，直接的结果就是会提升当地的经济。所以作者提到游客的费用是为了说明电动滑板车有助于提升当地的经济。A．To confirm e﹣scooters are easy to handle.确认电动滑板车易于操作；B．To describe tourists' experiences in Townsville.描述游客在汤斯维尔的经历；C．To show e﹣scooters help promote local economy.展示电动滑板车有助于促进当地经济；D．To compare spending ways between active and light users.比较活跃用户和轻度用户的消费方式。故选C。
（4）标题归纳题。文章首段就说明了作者的研究小组就共享电动滑板车是否对旅游城市有益的问题，对汤斯维尔的游客做了调查。文章围绕着该调查展开，结果证明了像汤斯维尔这样采用共享电动滑板车的旅游城市正在提升城市形象和旅游经济。所以A选项"汤斯维尔的旅游业蓬勃发展得益于电动滑板车"能很好地概括文章内容，最适合作为该文章的标题。故选A。

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201807. （2024•西安中学•七模）     Harvard scientists have engineered a group of fish that swims autonomously.Researchers say the experiment could advance pacemaker（起搏器） technology and improve the development of artificial hearts for humans.
    Researchers built the fish using paper，two parts of heart muscle tissue —one on the left side and one on the right —and a plastic fin.A contraction on one side caused the muscle on the other side to stretch.The stretching then caused those cells to contract，which moved the tail from side to side and allowed it to swim on its own.The muscle cells were from human stem cells.The researchers also engineered an autonomous pacing node，which acted like a pacemaker by controlling the rhythm and frequency of the contractions.
    The fish moved autonomously for over 108 days，which is equal to 38 million beats，the study states.Because heart cells constantly rebuild themselves，which takes about 20 days，the fish cells rebuilt themselves a total of about five times over，says Kit Parker，a professor from Harvard University who led the research.
    Years ago，Parker was disappointed with the state of heart treatment. "It occurred to me in 2007 that we might have failed to understand the fundamental laws of muscular pumps，" he said in a 2012 statement.Then，on a trip to the museum with his daughter，he spotted a special fish. "I'm looking at it，thinking， 'It pumps，it looks like a heart pump，and I could build that thing.'" In 2012，his team created a fish that swam using rat heart cells，and then a ray fish with rat heart cells in 2016.
    Though the researchers say the fish is a step forward for heart research，it could be years before it leads to the creation of an artificial heart，says Michael Schneider，a professor at Imperial College London，who wasn't involved in the study.But that doesn't dismay Parker. "I think other methods will be faster than us，" says Parker. "But in the long run，creating tissue that relies on the patient's own cells could offer unexpected benefits."

（1）What made the fish swim autonomously in the experiment？
A.The special paper.
B.The push of the fin.
C.Muscle contractions.
D.The support of the tail.
（2）What result probably impressed the researchers most？
A.The power of the pacing node.
B.The swimming speed of the fish.
C.The fish's lasting swimming time.
D.The rhythm of the fish's movement.
（3）Why is Parker's trip to the museum mentioned in Paragraph 4？
A.It gave Parker a good memory.
B.It made Parker find inspiration.
C.It removed Parker's disappointment.
D.It introduced Parker to a special fish.
（4）What does the underlined word "dismay" mean in the last paragraph？
A.Depress.
B.Annoy.
C.Embarrass.
D.Relieve.

共享时间:2024-06-08 难度:2 相似度:1.67

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201941. （2023•西安四十八中•一模） Science reporting on climate change does lead Americans to adopt more accurate beliefs and support government action on the issue，but these gains are fragile，a new study suggests.Researchers found that these accurate beliefs fade quickly when people are exposed to coverage skeptical of climate change.
   "It is not the case that the American public does not respond to scientifically informed reporting when they are exposed to it，" said Thomas Wood，associate professor of political science at the Ohio State University. "But even truly accurate science reporting recedes from people's frame of reference very quickly."
   Resultowed that accurate science reporting didn't persuade only politicians and people who initially rejected human-caused climate change also had their opinionifted by reading accurate articles.The study involved 2，898 online participants who participated in four waves of the experiment during the fall of 2020.
   In the first wave，they all read authentic articles in the popular media that provided information reflecting the seientifie views on climate change.In the second and third waves，they read either another scientific article，an opinion article that was skeptical of climate science，or an article on an unrelated subjeet.In the fourth wave，the participants simply were asked their beliefs about the science of climate change and their policy attitudes.
   To rate participants' scientific understanding.the researchers asked after each wave if they believed that climate change is happening and has a human cause.To measure their attitudes，researchers asked participants if they favored government action on climate change and if they favored renewable energy.
   "What we found suggests that people need to hear the same accurate messages about climate change again and again.If they only hear it once，it recedes very quickly，" Wood said.It was significant that accurate reporting had positive effects on all groups，including those who originally rejected climate change.But it was even more encouraging that it affected attitudes.

（1）What does the underlined word "recedes" in paragraph 2 mean？
A．Increases.
B．Graduates.
C．Disappears.
D．Strikes.
（2）What does paragraph 4 mainly tell us？
A．The research object.
B．The research result.
C．The research purpose.
D．The research procedure.
（3）Why did researchers ask participants the second question？
A．To survey the government's satisfaction rate.
B．To make an assessment on their attitudes.
C．To teach them scientific understanding.
D．To measure action on climate change.
（4）What can be the best title for the text？
A．Science Report Of Climate Change Can Affect Minds
B．Online Participants Joined In A Four-Wave Experiment
C．Accurate Science Reporting Don't Persuade Only Politicians
D．People Should Hear Accurate Messages About Climate Change

共享时间:2023-03-01 难度:2 相似度:1.67

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201722. （2024•西安中学•一模）     The Stanford marshmallow（棉花糖） test was originally conducted by psychologist Walter Mischel in the late 1960s.Children aged four to six at a nursery school were placed in a room.A single sugary treat，selected by the child，was placed on a table.Each child was told if they waited for 15 minutes before eating the treat，they would be given a second treat.Then they were left alone in the room.Follow-up studies with the children later in life showed a connection between an ability to wait long enough to obtain a second treat and various forms of success.
    As adults we face a version of the marshmallow test every day.We're not tempted（诱惑） by sugary treats，but by our computers，phones，and tablets-all the devices that connect us to the global delivery system for various types of information that do to us what marshmallows do to preschoolers.
    We are tempted by sugary treats because our ancestors lived in a calorie-poor world，and our brains developed a response mechanism to these treats that reflected their value-a feeling of reward and satisfaction.But as we've reshaped the world around us，dramatically reducing （the cost and effort involved in obtaining calories，we still have the same brains we had thousands of years ago，and this mismatch is at the heart of why so many of us struggle to resist tempting foods that we know we shouldn't eat.
    A similar process is at work in our response to information.Our formative environment as a species was information-poor，so our brains developed a mechanism that prized new information.But global connectivity has greatly changed our information environment.We are now ceaselessly bombarded（轰炸） with new information.Therefore，just as we need to be more thoughtful about our caloric consumption，we also need to be more thoughtful about our information consumption，resisting the temptation of the mental"junk food"in order to manage our time most effectively.

（1）What did the children need to do to get a second treat in Mischel's test？
A.Take an examination alone.
B.Show respect for the researchers.
C.Share their treats with others.
D.Delay eating for fifteen minutes.
（2）According to paragraph 3，there is a mismatch between        .
A.the calorie-poor world and our good appetites
B.the shortage of sugar and our nutritional needs
C.the rich food supply and our unchanged brains
D.the tempting foods and our efforts to keep fit
（3）What does the author suggest readers do？
A.Absorb new information readily.
B.Be selective information consumers.
C.Use diverse information sources.
D.Protect the information environment.
（4）Which of the following is the best title for the text？
A.Eat Less，Read More
B.The Bitter Truth about Early Humans
C.The Later，the Better
D.The Marshmallow Test for Grownups

共享时间:2024-03-11 难度:2 相似度:1.67

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201721. （2024•西安中学•一模）     Many people have dreamt to find a cancer cure.Now，a pill might provide some insight into their dreams.
   The medicine，AOH1996，also called the"cancer-killing pill"，explicitly targets the protein that encourages cancer cells to spread across the body.It prevents proliferating cell nuclear antigen（PCNA细胞增殖核抗原） with a tiny molecule.Up to August 2023，it is being evaluated in Phase I clinical studies for the treatment of solid cancers.
   Cancer is a condition in which abnormal cells continue to proliferate uncontrollably，causing the tissue to be destroyed.About one in six deaths were due to cancer in 2020，making it the top cause of death globally.
   According to a recent study published in Cell Chemical Biology，City of Hope researchers have discovered a novel method to treat cancer using a special tablet that can get rid of solid tumors.AOH1996 differs from other targeted cancer therapies in this respect，where other approaches may cause a tumor to change and develop more resistance to treatment.
   According to City of Hope Professor Linda Malkas，the research team created a medicine specifically targeting the kind of PCNA seen in cancer cells since data indicate that PCNA is distinctively changed in cancer cells.The novel cancer medicine acts like a snowstorm closing a significant airport，stopping only flights from and to aircraft carrying cancer cells.
   "Results have been promising.AOH1996 can prevent tumor growth in cell and animal models.The drug is currently in Phase I clinical trial in humans at City of Hope."
   Treatment of lung，brain and skin cancers with AOH1996 haown to be effective.It kills specific cells by stopping them from replicating（复制） typically.To assess this medicine for potential future use，more clinical studies are planned.

（1）What can we know about PCNA？
A.It is a pill that cures solid cancer.
B.It is a medicine that prevents tumor growth.
C.It is a molecule targeted by the cancer-killing pill AOH1996.
D.It is a protein that causes cancer cells to spread across the body.
（2）Why is AOH1996 different from other cancer drugs？
A.It has cured many patients' cancers.
B.It will develop drug resistance.
C.It is a natural product collected from plants.
D.It has less side effects than other cancer drugs.
（3）What does the author want to express by saying"The novel cancer medicine acts like a snowstorm closing a significant airport..""？
A.AOH1996 targets cancer cells without harming healthy cells.
B.AOH1996 has caused chaos in the medical field.
C.AOH1996 is highly effective but inefficient in treating cancer patients.
D.AOH1996 is unpredictable and can have unintended consequences.
（4）What's the purpose of planning more clinical studies for AOH1996？
A.Determining the specific types of cancers it can effectively treat.
B.Investigating the possible side effects of the medicine.
C.Determining if it can be used on a large scale.
D.Confirming its effectiveness in killing specific cells.

共享时间:2024-03-11 难度:2 相似度:1.67

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201652. （2025•高新一中•十模）     We want financial competence to be a part of your life.The more you know and the more tools you have，the better prepared you will be for life at and beyond Harvard.
    Budgeting
    With a sensible budget，you can avoid financial stress.If you like a pen and paper approach，you can try a simple tracking sheet like Balance Pro or a more comprehensive budget worksheet like Harvard Assistant.If you prefer a phone app，there are many to choose from and most are free.
    Credit
    Each year，U.S.News and World Report conducts a survey of students who own a credit card.They identify and address common credit topics such as credit scores，costs of credit.View Credit Survey&Guide here.
     Saving and Investing
    As a student，this topic may not yet be on your radar，but saving is a key concept for financial well-being.Compound interest is the principle that a dollar today is worth more than a dollar in the future.The longer the time frame for investment，the more you can increase the income.Discover the amount of earnings you could get over a period of time with SEC compound interest calculator.
    Events
    Throughout the year，we offer events on a wide range of financial competence topics.
    ?First-Year Finance-A session delivered in the fall of your first year which provides an overview of all things about Financial Aid.
    ?Money Management-You're getting ready to graduate but is your financial health in order？Join us at our spring semester sessions to check it out.
    ?University Efforts-Harvard and the University Financial Aid Office cooperate to offer personally tailored sessions which are invaluable as you start your life in&post-Harvard.

（1）Which link may help estimate earnings over time？
A.Balance Pro.
B.Harvard Assistant.
C.Credit Survey Guide.
D.SEC compound interest calculator.
（2）What is special about University Efforts？
A.It only offers online sessions.
B.It only serves graduates.
C.It can be time-flexible.
D.It can be money-consuming.
（3）What is the purpose of this text？
A.To advertise financial products and tools.
B.To help college students with their finances.
C.To attract more visitors to the school website.
D.To raise the financial awareness of the public.

共享时间:2025-06-06 难度:2 相似度:1.67

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201808. （2024•西安中学•七模）     In a new study，researchers found that invasive insects in the United States could kill approximately 1.4 million urban trees by 2050，which would cost over ＄900 million to replace，reports Vishwam Sankaran for the Independent.
    Hot spots predicted to have the most urban tree mortality（死亡率） were Milwaukee，Wisconsin；Chicago，Illinois；and New York，New York.The study，published in the Journal of Applied Ecology，is the first nationwide forecast of street tree mortality from invasive insects.
    The emerald ash borer is an invasive beetle native to Asia.It was first detected in 2002 in southeastern Michigan，and experts suspect it was brought into the United States on wood packing material carried on cargo ships or airplanes traveling from Asia.Since then，the bug has been damaging ash trees.In the last two decades since the insect was first detected，numerous trees have been killed in North America.
    Data collected from 30，000 communities across the country was used to estimate tree mortality in the next 30 years.The researchers combined this data with a model that predicted the spread of 57 different invasive insect species.Their resultow emerald ash borers alone could cause 90% of the estimated 1.4 million tree deaths.Ash borers are already predicted to "kill virtually all ash trees" in over 6，000 urban areas，according to Newsweek.
    Less than 25% of 30，000 urban areas in the U.S.are expected to experience 95% of all street-tree mortality，reports Adam Barnes for the Hill.The areas that will experience the most tree loss include cities in the Midwest and East Coast.These locations are expected to have the most tree loss because large numbers of ash trees occupy the streets and parks in these areas，reported the Independent.
    When it comes to how to save urban areas from becoming treeless，study author Emma Hudgins，a biologist at McGill University，says， "These results can hopefully provide a cautionary tale against planting a single species of tree throughout entire cities，as has been done with ash trees in North America.Planting various trees provides resilience against pest infestations（侵扰）."

（1）What can we know about the emerald ash borer？
A.It is an invasive beetle in Asia.
B.It was first found by the Michigan people.
C.It has killed numerous trees in America.
D.They definitely enter the U.S.by cargo ships or airplanes.
（2）What is the fourth paragraph intended to describe？
A.The purpose of the research.
B.The conclusion of the research.
C.The significance of the research.
D.The process and result of the research.
（3）What can be inferred from the fifth paragraph？
A.Pest infestations are taking place across the country.
B.The insect's invasion won't spread equally in America.
C.Tree loss is the main cause of environmental problems.
D.Ash trees are being removed from many areas in the U.S.
（4）What suggestion does Emma Hudgins provide？
A.Getting different types of trees planted.
B.Replacing foreign trees with local ones.
C.Getting more trees planted in more areas.
D.Planting trees resistant to pest infestations.

共享时间:2024-06-08 难度:2 相似度:1.67

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201579. （2025•长安区•一模）     Businesses are now in cost-cutting mode.Title inflation（头衔通胀） has crept into the workplace.Layoffs，hiring freezes and concerns about a recession（经济衰退） are plaguing employers.
   To balance this unique economic environment，employers have figured out a way to comfort employees and job applications without spending more money.They are offering impressive titles to soften the blow of not providing a raise to internal employees or big compensation to job candidates.
    An employee's title is their identity.It gives them credibility in the office and makes them feel more powerful.In this sense，the policy is a sensible way to help keep staff and attract top candidates.
    But if you don't really deserve the new title，it could come back and trouble you.Recruiters will be pleased to find a candidate who is a perfect fit for a significant，well-paying position in terms of skills，background，and previous experience.However，a stumbling block arises when they notice the candidate has a higher title than the client offers.Since a recruiter wants to make a placement and earn a fee，they won't waste time and will seek out other candidates who are a better fit.
    Even if the recruiters decide to contact the candidate，there's a good chance the candidate won't accept.Because most people aren't aware that their title was inflated and believe it was a reward for their outstanding performance.Understandably，they would be offended if they received a lower-level post.Now that you are at a certain level，you don't want to go backward.
    What's more，if your current title is too high，it raises red flags.For example，when searching for a new job，if your title is"director，"but the new role is under that level，the interviewer will curiously inquire，"why do you want to go down in title？"There will be an assumption from the hiring manager that something isn't right.They may feel that the job seeker is leaving before being fired and willing to downgrade.Rather than trying to figure out the motivations of the candidate，they'll move on to others who have a cleaner story without any baggage.

（1）What does the underlined word"plaguing"in paragraph 1 probably mean？
A.Shocking.
B.Embarrassing.
C.Troubling.
D.Confusing.
（2）What can we learn about employees with impressive titles？
A.They tend to look down upon others.
B.Their salaries don't match their titles.
C.Their fear of being fired will disappear.
D.They get a good platform for development.
（3）What will a recruiter probably do if a candidate's title is higher than the client offers？
A.Have a discussion with the client.
B.Contact the job applicant immediately.
C.Exclude the candidate from consideration.
D.Gather more information about the candidate.
（4）What is hiring managers' attitude towards those who choose to downgrade？
A.Enthusiastic.
B.Dismissive.
C.Appreciative.
D.Doubtful.

共享时间:2025-03-05 难度:2 相似度:1.67

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201968. （2023•长安区•一模） Electronic sensors built into paper could be used in a range of ways from information storage to touch screens and more.
   Electronic sensors built into cartons（纸盒）may make it easier to tell when it's time to throw out rotten milk or orange juice.And that's just the start.At least that's the goal for researchers working on putting electronics into paper.They're trying to figure out how to combine the flexibility，low-cost and recyclability of paper with the information-carrying ability of electronics.
   Daniel Torbjork，a physics graduate student in Finland，has been working on the problem.He's published a review of the field in the journal Advanced Materials.
   Much research has been focused in this area.While most electronic applications require patterned conducting structures，conductive paper could be used in applications such as energy storage devices，sensors，electric heaters and others，according to Torbjork.
   "You could even have some interactive functions in magazines，" Torbjork said，"You could put a simple game in a package.If you want a touch screen，press a button and then something happen.Sensors in paper could tell us when something has gone bad."
   Additional applications，such as information storage and security paper，have been suggested for magnetic papers containing magnetite.In Massachusetts，researchers have figured out how to post a video of such a device put into a paper airplane.
   German researchers have also put electronic chips in paper bank notes to defend counter-feiters（造伪币者）.Paper is a good material but printing electronics also requires low-cost manufacturing.As many US and European paper makers lose market share to cheaper paper from China，these big paper companies are looking for added value products.That's where electronic paper devices could make a difference.
   "The major obstacles are paper's large surface roughness and chemical impurities." Torbjork says.But others in the field think that electronic sensors in paper are still far from the consumer marketplace.
   "I don't think it's going to happen." said Roy Horgan. "You need a conductive surface.It could be 10 years out.What we are looking for are solutions that you can commercialize today."
   Solar Print is partnering with Italian automaker Fiat to develop a unique auto-glass with tiny photostatic cells（光电）that can capture electricity from the sun.In the meantime，using paper to conduct electricity is still a "blue-sky" project.
   "I would love to see someone prove me wrong，because that means that it's actually happening." Horgan said. "If someone comes up with conductive paper，then that's a very interesting technology."

（1）Putting electronics into paper will        .
A．cut the cost and impurity of paper
B．depend on flexible conductive structure
C．help consume rotten milk or orange juice
D．combine the advantages of paper and electronics
（2）Paragraphs 4 to 7 mainly talk about the         of the conductive paper.
A．theories
B．structures
C．practical use
D．design process
（3）Some paper makers welcome the new technology probably because it will         .
A．add more value to paper
B．make the paper smoother
C．put an end to fake money
D．improve the printing technology
（4）From the passage，we know that Roy Horgan        .
A．has a burning desire to make a great profit
B．started a "blue-sky" project to study paper
C．is not confident about the conductive paper
D．showed much interest in Solar Print industry

共享时间:2023-03-05 难度:1 相似度:1.33

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201693. （2024•西工大附中•模拟） California has lost half its big trees since the 1930s，according to a study to be published Tuesday and climate change seems to be a major factor．
    The number of trees larger than two feet across has declined by 50 percent on more than 46，000 square miles of California forests，the new study finds．No area was spared or unaffected，from the foggy northern coast to the Sierra Nevada Mountains to the San Gabriels above Los Angeles．In the Sierra high country，the number of big trees has fallen by more than 55 percent；in parts of southern California the decline was nearly 75 percent．
   Many factors contributed to the decline，said Patrick Mclntyre，an ecologist who was the lead author of the study．Woodcutters targeted big trees．Housing development pushed into the woods．Aggressive wildfire control has left California forests crowded with small trees that compete with big trees for resources（资源）．
   But in comparing a study of California forests done in the 1920s and 1930s with another one between 2001 and 2010，Mclntyre and his colleagues documented a widespread death of big trees that was evident even in wildlands protected from woodcutting or development．
    The loss of big trees was greatest in areas where trees had suffered the greatest water shortage．The researchers figured out water stress with a computer model that calculated how much water trees were getting in comparison with how much they needed，taking into account such things as rainfall，air temperature，dampness of soil，and the timing of snowmelt（融雪）．
   Since the 1930s，Mclntyre said，the biggest factors driving up water stress in the state have been rising temperatures，which cause trees to lose more water to the air，and earlier snowmelt，which reduces the water supply available to trees during the dry season．

（1）What is the second paragraph mainly about？
A．The seriousness of big-tree loss in California．
B．The increasing variety of California big trees．
C．The distribution of big trees in California forests．
D．The influence of farming on big trees in California．
（2）Which of the following is well-intentioned but may be bad for big trees？
A．Ecological studies of forests．
B．Banning woodcutting．
C．Limiting housing development．
D．Fire control measures．
（3）What is a major cause of the water shortage according to Mclntyre？
A．Inadequate snowmelt．
B．A longer dry season．
C．A warmer climate．
D．Dampness of the air．
（4）What can be a suitable title for the text？
A．California's Forests：Where Have All the Big Trees Gone？
B．Cutting of Big Trees to Be Prohibited in California Soon．
C．Why Are the Big Trees Important to California Forests？
D．Patrick Mclntyre：Grow More Big Trees in California

共享时间:2024-03-05 难度:1 相似度:1.33

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201826. （2024•西安中学•九模） In February of 1942，Mexican farmer Dionisio Pulido thought he heard thunder coming from his cornfield.However，the sound wasn't coming from the sky.The source was a large smoking break sending out gas and pushing out rocks.This opening would come to be known as the volcano Paricutin，and over the next 9 years，its lava and ash would cover over 200 square km.But where did this new volcano come from，and what caused its unpredictable eruption？
   One of the most common causes of an eruption is an increase in magmastatic（静磁）pressure.Magma（岩浆）contains various elements and compounds.At high enough concentrations，compounds like water or sulfur（硫）form high-pressure gas bubbles.When these balls of gas reach the surface，they can burst with the force of a gunshot.And when millions of bubbles explode，the energy can send ash into the air.But before they pop or burst，they act like bubbles of CO₂ in a shaken soda.
   Not all eruptions are due to rising magmastatic pressure- sometimes the weight of the rock above can become dangerously low.Landslides can remove massive quantities of rock from atop a magma chamber or room，dropping the pressure and instantly touching off an eruption.This process is known as "unloading" and it's been responsible for numerous eruptions，including the sudden explosion of Mount St.Helens in 1980.But unloading can also happen over longer periods of time due heating ice or melting glaciers.In fact，many geologists are worried that glacial melt caused by climate change could increase volcanic activity.
   Unfortunately，knowing what causes eruptions doesn't make them easy to predict.While scientists can roughly determine the strength and weight of the Earth's crust（地壳），the depth and heat of magma chambers makes measuring changes in magmastatic pressure very difficult.But volcanologists are constantly exploring new technology to overcome this rocky field.Advances in thermal imaging（热成像）have allowed scientists to detect underground hotspots.Spectrometers can analyze gases escaping magma.Hopefully，these tools will help us better understand these gas breaks and their explosive eruptions.

（1）Why does the author mention the story of a farmer in the first paragraph？
A．To show the power of volcano eruption.
B．To introduce the topic.
C．To introduce the volcano Paricutin.
D．To explain the reason.
（2）What does the underlined word "they" in paragraph 2 refer to？
A．The bubbles of CO₂ .
B．The ash of the volcano.
C．Gas bubbles of compounds.
D．The elements of a soda.
（3）Which of the following is true about the eruption of Mount St.Helens？
A．Landslideould be responsible for its eruption.
B．It began to explode over a long period of time.
C．The process of "unloading" occurred after its explosion.
D．The weight of the rock above it increased as to cause its eruption.
（4）What can we infer from the last paragraph？
A．Scientists can determine the eruption of volcano in advance.
B．It is quite difficult to measure the weight of the Earth's crust.
C．Spectrometers can help scientists to detect underground hotspots.
D．Scientists are positive about further study of volcano eruption.

共享时间:2024-06-24 难度:1 相似度:1.33

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201845. （2024•西安一中•二模）     A carbon footprint is only one component of the broader ecological footprint.An ecological footprint compares the population's consumption of resources and land with the planet's ability to regenerate.The Earth's ecological footprint is currently 23 percent over capacity.It takes about one year and two months to regenerate what we consume in a year.
    Carbon footprints help people keep track of changes.Because footprints quantify an amount of carbon that increases or decreases based on energy use，they let people know that a new hybrid car or home insulation （隔离） helps.Transportation accounts for 33 percent of CO₂ emissions in the United States，so many people try to lower their mileage （里程）.Some walk or bike whenever possible；others take public transport.Home energyuse accounts for 21 percent of U.S.CO₂ emissions，so it helps to have an efficient home.Setting the thermostat （恒温器） at a moderate temperature and installing double-paned windows lowers energy costs.
    Of course，individual efforts can go only so far.Cutting CO₂ and other greenhouse gases down to safer levels requires significant government regulation.Lessening carbon footprints does let people see where they are and how they can change.Those who want to accept personal responsibility for their emissions can track their own reductions and change their habits.
    Because carbon calculators ask for only rough estimates，it's easy for investigators to approximate the footprints of celebrities and politicians.Analysts hope to uncover high-profile figures，especially those who promote environmentalism.Although performer Madonna and other celebrities have been accused of flying frequently，former vice president Al Gore has drawn the harshest accusations.The Gores' spokesperson did not deny that but emphasized that the couple subscribes to green power.

（1）How long can the Earth produce what we need in a year？        ?
A.2 months.
B.12 months.
C.14 months.
D.23 months.
（2）What is the second paragraph mainly about？        ?
A.Why people are worried about CO₂ emissions.
B.How individuals can help to lower CO₂ emissions.
C.Where most CO₂ emissions come from in the United States.
D.What measures have been taken to cut down CO₂ emissions.
（3）What is still needed to cut greenhouse gases down to safer levels？        ?
A.The participation of the public.
B.The development of new equipment.
C.The changes of our living habits.
D.The powerful efforts of the government.
（4）Why do investigators estimate the footprints of famous people easily？        ?
A.Because they have mastered methods.
B.Because it doesn't call for much accuracy.
C.Because famous people are easy to approach.
D.Because new technology has advanced greatly.

共享时间:2024-03-19 难度:2 相似度:0.83

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201846. （2024•西安一中•二模）     Once known as "the sea of death"，the Taklimakan Desert has become a driving force for green development in northwest China's Xinjiang Uygur Autonomous Region.In recent years，photovoltaic （光电池的） stations have been constructed and large gardens of vegetation such as roses have appeared on the outskirts of this vast desert.This transformation has positioned （使处于） the desert as a flourishing center of sustainable development.
    Under the sun's rays，rows of PV panels （面板） that generate electricity look like a blue ocean.Tian Juxiong，head of a power station in Lop County，regularly inspects these power generation systems and monitors their daily operations on the control center's screen.This station produces 360 million kWh of electricity annually and can meet the residential electricity needs of the 25.9 million residents of Xinjiang for around 10 days.Every year，it saves approximately 110，000 tonnes of standard coal and reduces 330，000 tonnes of carbon dioxide.
    The project is also equipped with an energy storage system with a capacity of 80，000 kWh.In rainy conditions when the station cannot generate electricity，the storage facility acts as a power bank，providing energy for about two hours.Most PV and wind power stations in southern Xinjiang are equipped with storage systems to ensure a stable supply of renewable energy.
    "By May，the total installed capacity for renewable energy in Xinjiang had passed 8，400 megawatts （兆瓦） and an additional 8，259 megawatts of new energy facilities are currently under construction，" according to Ding Biwei，who is responsible for grid connect ion of new energy at State Grid's Xinjiang branch.

（1）What does the underlined word "generate" in Paragraph 2 mean？        ?
A.Produce.
B.Waste.
C.Use.
D.Store.
（2）Where do people get energy in rainy conditions？        ?
A.From wind.
B.From other places.
C.From a bank.
D.From storage facility.
（3）What can we learn from Ding Biwei's words？        ?
A.Xinjiang is rich in natural resources.
B.Xinjiang has lots of renewable energy.
C.Xinjiang will be built more beautiful.
D.Xinjiang lacks new energy facilities.
（4）Where is the text most likely from？        ?
A.A travel guide.
B.A science fiction.
C.A newspaper.
D.A textbook.

共享时间:2024-03-19 难度:2 相似度:0.83

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201864. （2024•西安一中•三模）     The 2023 EF English Proficiency （水平） Index （EPI） that measures English language ability worldwide shows a worrying problem about English language proficiency.The index is based on test results from 2.2 million people in 113 countries.
    Results were reported for the first time in 2015.Since then，the English proficiency of young people has decreased by 89 points.The EPI defines young people as being 18 to 20 years of age，and it notes that they are mostly stable with big decreases in a few large countries.India，Indonesia and Mexico showed the largest ability decreases among youth.
    The report noted that the decrease appears to have taken place when the COVID-19 pandemic impacts normal education.There has been a decrease in Mexico for nearly 10 years.However，working adults，about 26 years old and older，have been improving their English since 2015.It is still widely acknowledged that the value of a shared language is most recognized in the workplace.English creates possibilities for individuals and productivity for organizations.
    Results also show a difference between men and women，which is called a gender gap.Men's English ability has improved by 14 points since 2015，while women's has decreased by 19 points.The lack of women in international jobs is one reason for the gender gap.But the gender gap among those aged 18 to 25 might demonstrate a problem caused by educational systems themselves or a social problem schools are failing to address.
    There are different opinions about why the decrease exists.Many people think artificial intelligence （or AI） tools could also be a key reason.Jeannie Tse is a country manager at EF Hong Kong and Macau.He thinks that while AI has changed the way young people work and learn，the importance of schools，teachers and face-to-face instruction remains. "I don't believe that AI can completely replace language learning，but educators can use AI to enhance language learning methods，" said Jeannie Tse.

（1）Why are working adults trying to improve their English？        ?
A．To increase their income and knowledge.
B．To be involved in better working environment.
C．To obtain more chances and better working efficiency.
D．To create a harmonious working environment for themselves.
（2）What can we learn from paragraph 4？        ?
A．Most women don't like international jobs.
B．Educational systems contribute to the gender gap in English proficiency.
C．Women's English proficiency decreases with age.
D．There widely exists the phenomenon of discrimination against women.
（3）What's Jeannie Tse's attitude to the role of AI and face-to-face teaching？        ?
A．Objective.
B．Positive.
C．Uncertain.
D．Uncaring.
（4）What is a suitable title for the text？        ?
A．Young People's Attitudes towards English Vary
B．English Learning Has Become a Burden Worldwide
C．Results from a Report Show some Alarming Problems
D．Young People's English Language Ability Is Decreasing

共享时间:2024-04-05 难度:2 相似度:0.83

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201865. （2024•西安一中•三模）     Fossils （化石），the preserved remains of ancient life，serve as windows into the Earth's rich history.The formation of the fossils is a wonderful journey that unfolds over vast stretches of time，catching good views of the diversity of life that once lived on our planet.
    The journey often starts with the death of an organism in a specific environment.Whether it's a plant，animal or microscopic organisms，the key factor lies in whether the remains are quickly buried.This initial step is critical to protect the organism from its enemies and environmental factors that could lead to breakdown.
    As the remains are buried，they experience layers of sediment （沉积层）.Over time，more layers gather，pressing the lower sediments.This process，known as sedimentation，plays a crucial role in preserving the remains by creating a protective environment that protects them from being destroyed.
    Mineralization is also a key period in the fossilization process.It involves the infiltration （过滤） of minerals into the organic tissues of the buried remains.Groundwater，rich in minerals moves through these layers.The minerals replace the original organic material，transforming the remains into rock-like forms.
    Sometimes，fossilization goes beyond mineralization to a process called petrification.Petrified fossils occur when the organic material is entirely replaced by minerals，often resulting in a good copy of the original organism.This transformation can preserve complex details，such as the skeletal features of animals.For softer organisms or parts like leaves or feathers，the fossilization process involves pressure.Under the weight of sediments，these delicate structures flatten but leave behind detailed imprints.
    The final step in the journey comes when geological processes expose the fossilized remains.Archaeologists then unearth these treasures，revealing the secrets of Earth's ancient inhabitants.This scientific exploration contributes to our understanding of evolution，biodiversity，and the ever-changing landscapes that have shaped the history of life on our planet.

（1）What is the role of fossils in the modern times？        ?
A．To help protect our environment.
B．To help explore the function of the Earth.
C．To enhance knowing the long history of the universe.
D．To provide an insight into the diverse life forms.
（2）Which of the following is the first step of fossilization？        ?
A．The quick pressure caused by rocks.
B．The quick transformation of the remains.
C．The rapid burial of the remains.
D．The mix of groundwater and minerals.
（3）How can a good copy of organisms form？        ?
A．By fossils petrified when minerals replace the organic material.
B．By groundwater moving through them.
C．By accumulating more pressure on them.
D．By creating a protective environment.
（4）What's the text mainly about？        ?
A．The importance of fossils.
B．The process of fossilization.
C．The evolution of ancient animals.
D．The preservation of the remains.

共享时间:2024-04-05 难度:2 相似度:0.83

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201883. （2024•周至县•一模）     The fishermen of Senegal have joined forces to protect one of the ocean's most endangered species—the sea turtle，a classic case of "poacher turned gamekeeper".
    The coastal waters of Senegal in West Africa are home to several species of sea turtles which are all beautiful creatures but are affected by pollution，poaching and even fishing nets.
    "Once we were the biggest eaters of turtles，now we have become their biggest protectors，" said Abdou Karim Sall，a fisherman who led the Management Committee for the Marine Protected Are （MPA）of Joal-Fadiouth.
    The Joal-Fadiouth MPA，covering about 174 square kilometers，was founded in 2004，and it's upheld by the government，local authorities and several associations.It is an area aimed at protecting mar in e ecosystem，habitats and species，including endangered species like the sea turtle.Its benefits are obvious：maintaining biodiversity，increasing fish catches on fishing grounds，as well as economic development.
    For a long time，Sall has been working to raise local awareness of sea turtle protection. "Even former turtle sellers have been 'changed' by receiving three small boats to take tourists to sea，" he said.Instead of strict restrictions，the Joal-Fadiouth MPA has been trying to educate local communities about the economic benefits so that they would join the project. "It's after they are told： 'It's an endangered species'，" Sall said.
    Local residents have also set out to protect the nests.During summer and fall，a few dozen turtles may stop to lay eggs on the beaches of Joal-Fadiouth.MPA agents and village volunteers pro test their nests with fences. "People come at 6 a.m.so that other animals do not take the young." said Sall.
    Sall added the number of turtles had decreased by about 30% in the past 20 years，and chances of survival of a young turtle were no higher than one in a thousand.But the fisherman-conservator agreed， "Awareness has not worked 100%."

（1）What does the underlined word "upheld" in Paragraph 4 mean？
A.Hurt.
B.Ignored.
C.Supported.
D.Paused.
（2）Which of the following is the measure taken by the Joal-Fadiouth MPA to protect sea turtles？
A.Building more nests for turtles to lay eggs.
B.Placing strict restrictions to educate the communities.
C.Providing different means of transportation for turtle sellers.
D.Publicizing the economic benefits of the project.
（3）What will most probably be talked about in the following paragraph？
A.The mistakes the MPA has made.
B.The danger sea turtles still face from fishermen.
C.The argument about the Marine Protected Area.
D.The benefits brought by the Marine Protected Area.
（4）What is the main idea of the text？
A.Fishermen of Senegal have joined together to protect sea turtles.
B.Sea turtles in Senegal are endangered because of human activities.
C.The situation of sea turtles in Senegal has been improves significantly.
D.The Marine Protected Area has played an important role in protecting fishes.

共享时间:2024-03-07 难度:2 相似度:0.83

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ytb@dyw.com

2023-05-11

高中英语 | 高一下 | 阅读理解

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