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205487. （2020•莲湖区•高一下期末） World Earth Day is on April 22．It's a day when people around the world work to help the planet，including kids．Here are what four kids have done for the planet．
   Speaking Out
   Jaysa Hunter-Mellers，14，spoke at the City Hall to ask leaders to shut the last coal power station nearby which brought her an asthma（哮喘）attack．She didn't think that people would listen to her，a kid．But the coal power station later said it would close．Jaysa learned to speak to her local government at a young age and now she wants to teach others to speak up too．
   Helping Butterflies
   When Aiden Wang was 6，he learned that local butterflies were in trouble because they needed a kind of grass，milkweed，to survive．But milkweed was disappearing．So Aiden started growing milkweed in his house，on which the butterflies lay eggs．Aiden is now 13 and he cares for eggs and lets them go when they turn into butterflies．
   Doing Good for Gorillas
   When Addy Barrett was in the first grade，she learnt that the mountain gorillas were in danger．She wanted to protect them and set up a program called Gorilla Heroes．So far，Gorilla Heroes has raised more than ＄11，000 to help mountain gorillas．Addy says， "The feeling of having a fine effect on the world is like no other．It feels so good to know that I am making a difference． "
   Educating the Youth
   In the fourth grade，Jeremy Clark and Charlie Abrams saw a picture of the Statue of Liberty（自由女神像）up to her waist in water．It was meant to show what the statue would look like if all the ice in the world is turned into water．In 2019，they started a team called Affected Generation to urge young people to become climate activists．The two also want schools to teach about climate change．

（1）Why did Jaysa call on the government to close the coal power station？
A．It made too much noise．
B．It caused health problems to her．
C．She wanted to set an example for others．
D．She wanted to warn government leaders．
（2）How does Aiden Wang help butterflies？
A．By collecting their eggs．
B．By feeding them on milk．
C．By turning eggs into butterflies．
D．By planting grass they lay eggs on．
（3）Who set up a team to protect the environment？
A．Aiden Wang．
B．Addy Barrett．
C．Jaysa Hunter-Mellers．
D．Jeremy Clark and Charlie Abrams．

共享时间:2020-07-11 难度:2

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[考点]

记叙文，说明文，

[答案]

（

）﹣（

）

BDD

[解析]

（1）B．细节理解题．根据第二段中的"Jaysa Hunter﹣Mellers，14，spoke at the City Hall to ask leaders to shut the last coal power station nearby which brought her an asthma（哮喘）attack．"（14岁的Jaysa Hunter Mellers在市政厅发表讲话，要求领导关闭附近最后一座给她带来哮喘发作的煤电站．）可知，Jaysa要求政府关闭煤电站是因为煤电站给她带来了健康问题．故选B．
（2）D．细节理解题．根据第三段中的"So Aiden started growing milkweed in his house，on which the butterflies lay eggs．"（所以Aiden开始在他的房子里种马利筋，蝴蝶在上面产卵．）可知，Aiden通过种植蝴蝶可以在上面产卵的草来帮助蝴蝶．故选D．
（3）D．细节理解题．根据最后一段中的"In 2019，they started a team called Affected Generation to urge young people to become climate activists．"（2019年，他们成立了一个名为"受影响的一代"的团队，敦促年轻人成为气候活动家．）可知，"they"指的是本段上文出现的Jeremy Clark和Charlie Abrams．故选D．

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22266. （2016•新课标•ll卷） A new collection of photos brings an unsuccessful Antarctic voyage back to life.
Frank Hurley's pictures would be outstanding----undoubtedly first-rate photo-journalism---if they had been made last week.In fact,they were shot from 1914through 1916，most of them after a disastrous shipwreck（海难），by a cameraman who had no reasonable expectation of survival.Many of the images were stored in an ice chest,under freezing water,in the damaged wooden ship.
The ship was the Endurance,a small,tight,Norwegian-built three-master that was intended to take Sir Ernest Shackleton and a small crew of seamen and scientists,27men in all,to the southernmost shore of Antarctica's Weddell Sea.From that point Shackleton wanted to force a passage by dog sled（雪橇） across the continent.The journey was intended to achieve more than what Captain Robert Falcon Scott had done.Captain Scott had reached the South Pole early in 1912but had died with his four companions on the march back.
As writer Caroline Alexander makes clear in her forceful and well-researched story The Endurance,adventuring was even then a thoroughly commercial effort.Scott's last journey,completed as be lay in a tent dying of cold and hunger,caught the world's imagination,and a film made in his honor drew crowds.Shackleton,a onetime British merchant-navy officer who had got to within 100miles of the South Pole in 1908，started a business before his 1914voyage to make money from movie and still photography.Frank Hurley,a confident and gifted Australian photographer who knew the Antarctic,was hired to make the images,most of which have never before been published.

33．What do we know about the photos taken by Hurley？
A．They were made last week
B．They showed undersea sceneries
C．They were found by a cameraman
D．They recorded a disastrous adventure
34．Who reached the South Pole first according to the text？
A．Frank Hurley
B．Ernest Shackleton
C．Robert Falcon Scott
D．Caroline Alexander
35．What does Alexander think was the purpose of the 1914voyage？
A．Artistic creation
B．Scientific research
C．Money making
D．Treasure hunting.

共享时间:2016-06-10 难度:4 相似度:1.5

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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:1.5

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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:1.5

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201884. （2024•周至县•一模）      Since 2001，robotic tools have revolutionized the practice of surgery.They have greatly reduced the stress and physical demands normally placed on surgeons and have made certain procedures possible.
    One example is "keyhole surgery"，or minimally invasive （微创） surgery，which normally requires surgeons to stand at awkward angles and make difficult movements with their hands to make a cut inside the patient.But in June 2022，surgeon James Ansell used 3 D glasses and two sticks to control four robotic arms to perform a procedure to remove a cancerous tumor. "My colleague said...that this feels like cheating，" Ansell said to The Guardian.
    Another area of surgery that has had major technological breakthroughs in recent years is telesurgery.Normally，telesurgery relies on a wired connection due to concerns of harming the patient should a wireless connection drop during surgery，but China made several advancements in wireless telesurgery based on 5 G technology.
    China achieved the first 5 G-based remote operation in March 2019 involving a brain surgery procedure between a surgeon in Sanya and a patient in Beijing，a distance totaling nearly 3，000 kilometers.More recently，a team of surgeons successfully completed remote micron-level eye surgery on rabbits located in a different city.The rabbits were at the Sun Yat-sen University in Guangzhbù，Guangdon g province，whereas the surgical team who operated on them via a 5 G robot were at the Hainan Eye Hospital in Haikou，Hainan province.
    Looking to the future，people hope that remote surgery could become commonplace to help heal injured soldiers on the battlefield while keeping surgeons at a safe distance.Some even believe that robotic systems，combined with AI，could one day exceed human surgeons.
    But，given current technological limitations and the high costs of these robots which can cost millions of dollars，the complete robot takeover of surgery may still be a while off.

（1）What does the "keyhole surgery" example intend to show？
A．Great complexity of robotic surgery.
B．Physical challenges surgeons face.
C．Surgical progress enabled by robotic tools.
D．Urgent need for advanced 3 D technology.
（2）What significant achievement did China make in the field of telesurgery？
A．Achieving remote surgery using a wired connection.
B．Completing successfully remote eye surgery on humans.
C．Conducting a 5 G-based remote operation on rabbits overseas.
D．Performing the first wireless brain surgery with 5 G technology.
（3）What can be inferred from the text about robots in the medical field？
A．They are quite affordable.
B．They are currently in high demand.
C．They have not been widely used.
D．They have gone beyond human capabilities.
（4）What is a suitable title for the text？
A．Robotic Surgery Uses 5 G Technology
B．Keyhole Surgery Benefits Human Beings
C．Autonomous Robot Achieves Great Progress
D．Medical Robotics Revolutionizes Surgery Method

共享时间:2024-03-07 难度:2 相似度:1

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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

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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

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201758. （2024•西安中学•三模） When you think of a map，is north on the top or the bottom？Usually，maps are designed with north on top，though when we think about it，there s no logical reason for this bias.After all，there is no up or down in space.So what's wrong with south，east or west being on the top of the map？The answer is：nothing at all.In fact，north-up maps only became the norm in the last few hundred years.
   Ancient Egyptian maps had south at the top because the Nile River flows downhill from mountains in the south to the Mediterranean Sea in the north.Mecca was to the south of most early Muslim civilizations，and south-up maps were designed so that viewers would look up to see Mecca.Medieval Christian maps had east at the top，as they believed the Garden of Eden was in the east.The only early maps that had north at the top were those of early China because the emperor lived in the north.
   North seems to have settled at the top of maps during the 16th century，largely thanks to a Flemish mapmaker，Mercator.Mercator was a great admirer of an early Greek mapmaker，who，for reasons now unknown，put north at the top of maps，so Mercator did，too.When Mercator's world map became the standard map to navigate the oceans，north up became standard as well.
   What is the implication of this north-view of the world？Psychologically，people tend to think of up as good and down as bad.Just think of words and phrases like "upmarket"，"upbeat" and "moving up in the world"，and how they contrast with their opposites.Because north is so consistently put at the top of maps，people now think of north as good，too.
   Several attempts have been made in recent years by introducing south-up maps to the market.These maps not only give us a chance to see the world differently，but also give everyone the chance to see themselves on top.

（1）What can we learn from the first two paragraphs？
A．North-up maps were rare in ancient times.
B．Deciding up or down in space is ridiculous.
C．Mecca maps were based on a legend.
D．The south-up map first appeared in ancient Egypt.
（2）Why is north associated with good？
A．An illogical reason.
B．The spread of Mercator's maps.
C．People's preference for up.
D．An age-old tradition in Greece.
（3）What is the authors attitude to south-up maps？
A．Cautious.
B．Supportive.
C．Uncaring.
D．Disapproving.
（4）What's the main purpose of the text？
A．To explain a phenomenon.
B．To compare various facts.
C．To correct a cultural bias.
D．To argue for a viewpoint.

共享时间:2024-04-15 难度:2 相似度:1

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201759. （2024•西安中学•三模）     The nine women of Bella Mondo win over yet another audience.The group is one of just a handful of all-women ensembles（乐队） in Ivory Coast.
    It all started in 2007.Prisca Allou was a music student.A music producer came to see her.He said he wanted to make an all-female ensemble to keep a promise to his late mother.
    Allou got on board and was charged with recruiting （招募） other members. "It wasn't easy at first.Some parents were against it.You know，in Africa，the place of women is often seen as being either in an office or at home.That was the fixed image." Allou spread the word and took out ads in local papers.Most of the girle found were not professional players. "I just played some tamtam.I learned to play drums when I joined Bella Mondo，" one member said.The girls spent the next four years learning to play their instruments.Many gave up along the way，but eight of them soldiered on with Allou，and Bella Mondo was founded.
    The band plays original songs and covers.Their music spans a wide range of styles：funk，reggae，pop music.They released their first album in 2013...and have performed in Paris，Dakar，Cotonou and，of course，here at home in Abidjan.
    You can see them nearly every Thursday at this bar，the same place that gave the band its start years ago. "Oh yes，I was surprised at first.A woman singing，you see that every day，but an entire band，playing all the instruments and everything？It was extraordinary.I was dumbstruck.Bella Mondo is a great band，" one music fan said.The women are now working on their second album.

（1）Why did the music producer want to form a female ensemble？
A.To sponsor music students.
B.To comfort his mother.
C.To carry out his promise.
D.To win over an audience.
（2）Which of the following made it hard for Allou to recruit band members？
A.The band charged too much.
B.A number of parents didn't support it.
C.Most women prefer to work in a government office.
D.African women are not allowed to leave their homes.
（3）What does Paragraph 3 mainly talk about？
A.What Allou experienced.
B.How Bella Mondo was founded.
C.Why most girls gave up halfway.
D.How the girls learned to play instruments？
（4）What does the underlined word "dumbstruck" probably mean in the last paragraph？
A.Astonished.
B.Amused.
C.Determined.
D.Satisfied.

共享时间:2024-04-15 难度:2 相似度:1

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201760. （2024•西安中学•三模）     If humans were truly at home under the light of the moon and stars，we would go in darkness happily，the midnight world as visible to us as it is to the vast number of nocturnal（夜间活动）species on this planet.Instead，we are diurnal creatures，with eyes adapted to living in the sun's light.This is a basic evolutionary fact，even though most of us don't think of ourselves as diurnal beings.Yet it's the only way to explain what we've done to the night：We've engineered it to receive us by filling it with light.
    The benefits of this kind of engineering come with consequences—called light pollution—whose effects scientists are only now beginning to study.Light pollution is largely the result of bad lighting design，which allows artificial light to shine outward and upward into the sky.Ill-designed lighting washes out the darkness of night and completely changes the light levels—and light rhythms—to which many forms of life，including ourselves，have adapted.Wherever human light spills into the natural world，some aspect of life is affected.
    In most cities the sky looks as though it has been emptied of stars，leaving behind a vacant haze（霾）that mirrors our fear of the dark.We've grown so used to this orange haze that the original glory of an unlit night—dark enough for the planet Venus to throw shadows on Earth—is wholly beyond our experience，beyond memory almost.
    We've lit up the night as if it were an unoccupied country，when nothing could be further from the truth.Among mammals alone，the number of nocturnal species is astonishing.Light is a powerful biological force，and on many species it acts as a magnet.The effect is so powerful that scientists speak of songbirds and seabirds being "captured" by searchlights on land or by the light from gas flares on marine oil platforms.Migrating at night，birds tend to collide with brightly lit tall buildings.
    Frogs living near brightly lit highways suffer nocturnal light levels that are as much as a million times brighter than normal，throwing nearly every aspect of their behavior out of joint，including their nighttime breeding choruses.Humans are no less trapped by light pollution than the frogs.Like most other creatures，we do need darkness.Darkness is as essential to our biological welfare，to our internal clockwork，as light itself.
    Living in a glare of our own making，we have cut ourselves off from our evolutionary and cultural heritage—the light of the stars and the rhythms of day and night.In a very real sense，light pollution causes us to lose sight of our true place in the universe，to forget the scale of our being，which is best measured against the dimensions of a deep night with the Milky Way—the edge of our galaxy—arching overhead.

（1）According to the passage，human beings         .
A.prefer to live in the darkness
B.are used to living in the day light
C.were curious about the midnight world
D.had to stay at home with the light of the moon
（2）What does the underlined word "it" （Paragraph 1）most probably refer to？
A.The night.
B.The moon.
C.The sky.
D.The planet.
（3）The writer mentions birds and frogs to         .
A.provide examples of animal protection
B.show how light pollution affects animals
C.compare the living habits of both species
D.explain why the number of certain species has declined
（4）What might be the best title for the passage？
A.The Magic Light
B.The Orange Haze
C.The Disappearing Night
D.The Rhythms of Nature

共享时间:2024-04-15 难度:2 相似度:1

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201789. （2024•西安中学•五模）     Research has found that using wood for construction instead of concrete and steel can reduce emissions.But Tim Searchinger at Princeton University says many of these studies are based on the false foundation that harvesting wood is carbon neutral （碳中和）. "Only a small percentage of the wood gets into a timber （木料） product，and a part of that gets into a timber product that can replace concrete and steel in a building，" he says.Efficiencies vary in different countries，but large amounts of a harvested tree are left to be divided into parts，used in short-lived products like paper or burned for energy，all of which generate emissions.
    In a report for the World Resources Institute，Searchinger and his colleagues have modelled how using more wood for construction would affect emissions between 2010 and 2050，accounting for the emissions from harvesting the wood.They considered various types of forests and parts of wood going towards construction.They also factored in the emissions savings from replacing concrete and steel.
    Under some circumstances，the researchers found significant emissions reductions.But each case required what they considered an unrealistically high portion of the wood going towards construction，as well as rapid growth only seen in warmer places，like Brazil.In general，they found a large increase in global demand for wood would probably lead to rising emissions for decades.Accounting for emissions in this way，the researchers reported in a related paper that increasing forest harvests between 2010 and 2050 would add emissions equal to roughly 10 percent of total annual emissions.
    Ali Amiri at Aalto University in Finland says the report's conclusions about emissions from rising demand are probably correct，but the story is different for wood we already harvest. "Boosting the efficiency of current harvests and using more wood for longer lived purposes than paper would cut emissions，" he says. "We cannot just say we should stop using wood."

（1）What is wrong with previous researches according to Searchinger？
A．They got wrong statistics.
B．They used an incorrect concept.
C．They included too many factors.
D．They were applied in limited countries.
（2）What does paragraph 2 mainly talk about？
A．The process of the new research.
B．The background of the new study.
C．The challenge of the new research.
D．The achievements of the new study.
（3）When will the emissions drop off greatly according to the new study？
A．When wood grows slowly.
B．When wood is used to make paper.
C．When wood is used to build a house.
D．When wood is harvested in countries like Brazil.
（4）What is Ali Amiri's attitude toward the new result？
A．Favorable.
B．Doubtful.
C．Critical.
D．Objective.

共享时间:2024-05-08 难度:2 相似度:1

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201805. （2024•西安中学•七模）     Meeting people is the first step to make friends.But how do you actually become friends with someone？Here are some useful tips.
   1.Make small talk even if you don't feel like it
    Small talk can feel false and meaningless.But it does have a purpose.By making small talk，you show that you're friendly and open to communicating.In that way，small talk helps you to make the first connection with potential new friends.If someone doesn't make any small talk，we might assume that they don't want to make friends with us，that they don't like us，or that they're in a bad mood.
   2.Figure out what you might have in common
    When you talk to someone new and realize that you have things in common，the conversation usually goes from stiff to fun and interesting.Therefore，make it a habit to find out if you have any mutual interests or something in common.You can do this by mentioning things that interest you and seeing how they react.
   3.Don't write people off until you know them
    Don't judge people too quickly.Try not to assume that they are shallow，boring，or that you have nothing to talk about.If everyone seems uninterested，it might be because you keep getting stuck in small talk.If you only make small talk，everyone soundallow.
   4.Make people like being around you
    When you try to make people like you，it will become easier for you to make friends.When you make sure that people like being around you，they will like you.If we are with someone with a positive experience，we like that person more.

（1）What is the purpose of small talk？
A.To show that you are in a good mood.
B.To show you have something in common.
C.To show you are friendly and want to talk.
D.To show you are a potential new friend.
（2）According to the passage why do you think people around you are boring？
A.Because you don't have a deep chat with them.
B.Because they have nothing in common with you.
C.Because you don't make a small talk with them.
D.Because you don't like to make friends with them.
（3）What will you do if you want to make it easier to make friends？
A.To avoid being stuck in small talk.
B.To judge people by what they do.
C.To stay with people with a positive experience.
D.To make people willing to stay with you.

共享时间:2024-06-08 难度:2 相似度:1

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201806. （2024•西安中学•七模）     Charles Darwin was born in 1809 in Shrewsbury，England.His father，a doctor，had high hopes that his son would earn a medical degree at Edinburgh University in Scotland，where he was admitted at the age of sixteen.It turned out that Darwin was more interested in natural history than medicine.While he continued his studies at Cambridge，it was his focus on natural history that became his passion.
    In 1831，Darwin set out on a voyage as a naturalist aboard a ship of the British Royal Navy，the HMS Beagle.The main purpose of the trip was to survey the coastline of South America and chart its harbors to make better maps of the region.
    Darwin spent much of the trip on land collecting samples of plants，animals，rocks，and fossils.He explored regions in Brazil，Argentina，Chile，and remote islands such as the Galápagos.He packed all of his samples into large wooden containers and sent them back to England aboard other large ships.
    Upon his return to England in 1836，Darwin's work continued.Studies of his samples and notes from the trip led to groundbreaking scientific discoveries.Fossils he collected led to advances in the understanding of the processes that shape the Earth's surface.Darwin's analysis of the plants and animals he gathered led him to question how species form and change over time.This work convinced him of the insight that he is most famous for —natural selection.The theory of natural selection says that individuals of a species are more likely to survive in their environment and pass on their genes to the next generation when they inherit traits from their parents that are best suited for that specific environment.In this way，such traits become more widespread in the species and can lead eventually to the development of a new species.
    In 1859，Darwin published his thoughts about evolution and natural selection in On the Origin of Species.The book convinced many people that species change over time —a lot of time—suggesting that the planet was much older than what was commonly believed at the time：six thousand years.
    Charles Darwin died in 1882 at the age of seventy-three.He is buried in Westminster Abbey in London，England.

（1）What is the purpose of Paragraph 1？
A.To show his educational level.
B.To stress his father's influence on him.
C.To pave the way for his future study of nature.
D.To introduce his family background.
（2）What was Charles Darwin's attitude to his job as naturalist？
A.Boring.
B.Enthusiastic.
C.Unclear.
D.Disappointing.
（3）What kind of animal is more likely to survive according to natural selection？
A.An animal that can pass on its genes to the next generation.
B.An animal that can lead to the development of a new kind of species.
C.An animal that receives its parents' features fit for the specific environment.
D.An animal whose parents teach it to survive from the specific environment.
（4）What is this text mainly about？
A.The process of Darwin's voyage.
B.All the research results in Darwin's life.
C.The birth of Darwin's theory of natural selection.
D.Darwin's talent for studying natural history.

共享时间:2024-06-08 难度:2 相似度:1

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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

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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:1

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201825. （2024•西安中学•九模）     From the world's last seven to a global population of more than 5，000，China spent nearly 40 years bringing back crested ibises（朱鹗）from the edge of extinction.
    With its typical red crest and face，as well as a long black mouth and snow-white feathers，the crested ibis is known as "the oriental gem" in China.They were once widespread in East Asia and Siberia until the 20th century when hunting，ecological damage and increased human activities drove the birds to near extinction.
    In 1981，the entire species around the world was down to the seven crested ibises which were found only in Yangxian County，northwest China's Shaanxi Province，and deep in the Qinling Mountains，making Qinling，a natural boundary between China's north and south，the last shelter of the wild birds.
    Since 1981，the local government of Yangxian County has put forward four bans for the protection of the species，prohibiting activities including hunting in the birds' living areas，cutting down trees where they nest，using chemicals in their food-finding areas，and firing guns in their breeding（繁殖）areas.The Chinese government arranged special funds to protect the habitat of crested ibises，sealing off mountains to plant trees in the birds' living areas.China started the artificial breeding of crested ibises in 1991 and had bred more than 400 birds in Shaanxi as of last year.
    Years of constant effort have brought promising results.It is estimated that there are more than 5，000 crested ibises in the world now，and a majority of them live in Shaanxi.The bird's habitat in China has risen from less than 5 square km in 1981 to the current 15，000 square km.
    "It is lucky that the crested ibis，an ancient bird，is still flying around，" said Zan Linsen，head of the Shaanxi Academy of Forestry. "The conservation story of crested ibises not only shows us the power of ancient life，but also the necessity and urgency of ecological environment protection."

（1）Why are the Qinling Mountains so important to crested ibises？
A．They are where crested ibises were first found.
B．They used to be the last habitat of crested ibises.
C．They are the only breeding area of crested ibises.
D．They protect crested ibises from natural enemies.
（2）What can we conclude from paragraph 4？
A．Crested ibises are unlikely to be bred artificially.
B．It's legal to own hunting guns in Yangxian County.
C．Hunting has been the biggest threat to crested ibises.
D．The government plays a key role in saving crested ibises.
（3）How does Zan Linsen feel about the conservation of crested ibises？
A．Merciful and ambitious.
B．Relieved and happy.
C．Shocked and curious.
D．Sorry and regretful.
（4）What is a suitable title for the text？
A．Rare animals in China：crested ibises
B．Artificial breeding of crested ibises in China
C．Endangered crested ibises making a comeback
D．Crested ibises found again in the Qinling Mountains

共享时间:2024-06-24 难度:2 相似度:1

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2020-07-11

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