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201902. （2024•长安区•一模）     We may weep for the dodo，but could and should we bring this lovely bird back from the dead？De-extinction is the science of restoring lost species and it has been in the news for decades.
    The story in modern times began in 1990 when Michael Crichton published his science fiction novel Jurassic Park，in which he imagined a world where scientists were able to bring dinosaurs back to life.Crichton imagined that polymerase chain reaction （PCR） technology could be a way to amplify （放大） tiny quantities of dinosaur DNA and thus build a living embryo.
    Sadly，biologists soon realized that DNA in fact breaks down super-fast；even after 100 years，DNA from museum skins of dodos was decayed （腐烂） beyond repair.They could be sequenced （测定序列） using massive computational power，but then only with considerable uncertainty.And even if you capture a DNA sequence，there's still the problem of how you get living cells to read that sequence and express proteins that make the dinosaur or the dodo.
    But why would anyone want to see mammoths，or something like them，roaming （漫游） present-day Siberia？Well，they were undoubtedly amazing beasts.As well as hunting them，our distant ancestors painted their likenesses in caves across Europe.Fascinating as they may be，there's some ecological justification for the project too.
    It was this diversity of land surface，broken up by heavy limbs and randomly fertilised by faeces （排泄物），that supported so much flora （植物群）.Without the mammoths，that diversity disappeared.Return them and landscapes would once again be with a variety of species，including flowers and bushes.
    True，it's not de-extinction in the sense of bringing a long-dead species back to life.Instead it's more like making a "dodo" by engineering a modern pigeon，its closest relative，to become huge and flightless.The result would be a big，fatty pigeon that，whether it looked like a dodo or not，would probably fulfil some of its ecological roles.
    As a palaeontologist，I would of course love to see living dinosaurs，mammoths and dodos.In some ways，though，I am relieved that the optimistic claims for cloning and genetic technologies have not been borne out.The slowdown gives us time to consider the outcomes—and hopefully avoid some of Michael Crichton's more fevered imaginings.

（1）What is paragraph 2 of the text mainly about？
A．A science fiction review.
B．The development of DNA.
C．An inspired guess of de-extinction.
D．The application of PCR technology.
（2）What's the barrier to cloning a living embryo？
A．DNA is hard to keep for long.
B．Computational power is limited.
C．Biologists are opposed to it.
D．Living cells can??t be sequenced.
（3）Why are people interested in cloning extinct species？
A．They expect to seek hunt fun.
B．They lack sources of modern art.
C．They need them for research.
D．They want to see biodiversity.
（4）What's the author's attitude toward cloning extinct species？
A．Cautious.
B．Unclear.
C．Dismissive.
D．Approving.

共享时间:2024-03-07 难度:2

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科普知识，议论文，

[答案]

CADA

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（1）段落大意题。文章第二段讲到in which he imagined a world where scientists were able to bring dinosaurs back to life.Crichton imagined that polymerase chain reaction （PCR） technology could be a way to amplify （放大） tiny quantities of dinosaur DNA and thus build a living embryo. （在小说里，他想象了一个科学家能够让恐龙复活的世界。克莱顿设想聚合酶链式反应（PCR）技术可能是一种通过放大微小数量的恐龙DNA，从而构建了一个活的胚胎。）可知，第二段的主要内容是一个关于灭绝动物复活启发性猜测。选项C．An inspired guess of de﹣extinction.（一个关于灭绝的启发性猜测）符合题意。故选C。
（2）细节理解题。文章第三段讲到Sadly，biologists soon realized that DNA in fact breaks down super﹣fast；even after 100 years，DNA from museum skins of dodos was decayed （腐烂） beyond repair. （可悲的是，生物学家很快意识到DNA实际上分解得非常快；即使在100年后，博物馆里渡渡鸟皮肤上的DNA也腐烂得无法修复。）可知，克隆活胚胎的障碍是很难长期保存。选项A．DNA is hard to keep for long.（DNA很难长期保存）符合题意。故选A。
（3）细节理解题。文章第五段讲到Without the mammoths，that diversity disappeared.Return them and landscapes would once again be with a variety of species，including flowers and bushes. （没有长毛象，这种多样性就消失了。让他们回归，景观将再次出现各种各样的物种，包括花朵和灌木。）可知，人们热衷于克隆灭绝动物主要是想看到生物的多样性。故选D。
（4）观点态度题。文章最后一段讲到The slowdown gives us time to consider the outcomes—and hopefully avoid some of Michael Crichton's more fevered imaginings （经济放缓给了我们时间来考虑结果——并有望避免迈克尔•克莱顿的一些更狂热的想象）可知，作者对克隆灭绝动物持谨慎的观点。故选A。

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201549. （2025•西安中学•一模）     Elon Musk has offered a prize of ＄100 m for the best carbon capture proposal.I can save his committee a lot of time.The money should go to Peter Wohlleben，whose book The Hidden Life of Trees was the most encouraging blockbuster of 2015.Wohlleben's idea is this：do nothing about trees.Stop fiddling with them，thinking that we can deal with climate change better than nature.If we fiddle，our Romes will burn.
    The Hidden Life of Trees argued that trees are social.It shows that they can be our saviors.But it's terribly hard to let ourselves be saved.We think we can be the authors of our salvation（拯救）.Of course，there are things we could and should be doing，but in terms of forestry practice，often what's billed as part of the solution is part of the problem.
    Anyone who has planted a tree in their garden knows that it has a far-reaching effect—it makes your garden cooler in summer and warmer in winter.Forests cool by transpiring（蒸发）.If there's no water，there's no cooling.Drought can kill trees fast，but trees have many ways of dealing with it，and Wohlleben sets them out.As a species，we have survived many climatic changes by changing our behavior—and that's how trees survive，too.Trees learn from their past harms and produce younger ones programmed with those lessons.They regulate their growth by changing the rate at which they drip（点滴）-feed them with sugar solution through root networks.
    Deciduous（落叶的） forests in particular remove greenhouse gases effectively as long as they live.Cut them down and burn them and you're releasing carbon dioxide not just from the wood，but also from the forest floor.Deciduous trees are not"harvest-ready"at200 years：they are teenagers.We must interrogate comforting expressions such as"renewable energy"，and learn the real cost of our toilet paper.
    If we don't learn to do nothing about trees，they will eventually be alone anyway—but without us.Wohlleben brilliantly and readably shows us how urgent and how hard it is to do nothing.

（1）What does Wohlleben suggest for carbon capture？
A.Fight climate change.
B.Leave trees alone.
C.Save the earth.
D.Change forestry species.
（2）How do trees survive the drought？
A.They slow their growth.
B.They lose all their leaves.
C.They stop absorbing water.
D.They get help from humans.
（3）What can we infer from the text？
A.We can cope with climate change successfully.
B.Trees can adjust their growth by themselves.
C.It is hard to stop releasing carbon dioxide.
D.It is urgent to regulate the growth of trees.
（4）What is the author's purpose in writing the text？
A.To illustrate the carbon capture system.
B.To give an account of the survival of trees.
C.To clarify a proposal for a reward.
D.To recommend a book.

共享时间:2025-03-03 难度:2 相似度:1

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204106. （2023•西安中学•高二上期末） I walked along the sidewalk that borders the west side of Central Park this morning，wondering at itape：Hexagonal（六边形的） paving stones underneath my feet were bordered by brickwork，with a tidy stone wall running alongside.Just past the wall lay the park itself，where delicate branches of leafless trees reached to the blue sky，and sparrows emerged from trees.
   The contrast between the straight-lined，orderly，man-made sidewalk and the complex diversity of nature just beyond its border made me think about the differences between natural creation and man's creation.
   The world holds many examples of circles：the moon，grapes，drops of water and the center of flowers.Triangles（三角形） are readily evident，too.There are kitty cat noses and ears，mountain peaks and river deltas.
   But what about the most common shape in the man-made world，the rectangle（矩形）？I searched my brain for natural equals.Though I thought and thought，I came up with only two：teeth and salt crystals.That surprised me.Do we prefer rectangles simply because it's easier to plan and build with blocks and straight lines？Or does it have something to do with the idea that humans tend to assume life is supposed to be linear？I don't know.
   There are bent lines everywhere.As I look at the beauty of，a tree in winter，with its branches reaching skyward in a seemingly untidy but obviously planned pattern，I can apprehend something of what that means.
   Our world isn't always tidy and predictable in the way that I want it to be.There are twists and turns in my life that I can't foresee or predict.That doesn't mean branching off in unexpected directions is bad or wrong.It means that when I find myself in each new place，I need to continue growing and reaching upward.

（1）How did the author feel about the sidewalk'ape？
A．disappointed.
B．surprised.
C．worried.
D．pleased.
（2）What is the author' s attitude to the variouapes mentioned in the text？
A．negative.
B．cautious.
C．unconcerned.
D．objective.
（3）Which can explain the underlined word "apprehend" in paragraph 5？
A．create.
B．imagine.
C．understand.
D．arrange.
（4）What may the author agree with？
A．People should live in a complex world.
B．Triangles are the most common in nature.
C．Natural creation and man's creation should be balanced.
D．We should move forward in the face of uncertainties.

共享时间:2023-02-23 难度:2 相似度:1

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202892. （2018•西安中学•二模） A large body of research has been developed in recent years to explain many aspects of willpower．Most of the researchers exploring self-control do so with an obvious goal in mind：How can willpower be strengthened？If willpower is truly a limited resource，as the research suggests，what can be done to make it stay strong？
   Avoiding temptation（诱惑） is an effective method for maintaining self-control，which is called the "out of sight，out of mind" principle．One recent study，for instance，found office workers are less attracted to candy in the desk drawer than that on top of their desks，in plain sight．
   The research suggesting that we possess a limited reservoir（储备） of self-control raises a troubling question．When we face too many temptations，are we to fail？Not necessarily．Researchers don't believe that one's willpower is ever completely exhausted．Rather，people appear to hold some willpower in reserve，saved for future demands．The right motivation allows us to tap into those reserves，allowing us to carry on even when our self-control strength has been run down．High motivation might help overcome weakened willpower-at least to a point．
   Willpower may also be made less vulnerable（脆弱） to being exhausted in the first place．Researchers who study self-control often describe it as being like a muscle that gets tired with heavy use．But there is another aspect to the muscle comparison，they say．While muscles become exhausted by exercise in the short term，they are strengthened by regular exercise in the long term．Similarly，regular practices of self-control may improve willpower strength．
   The evidence from willpower-exhaustion studies also suggests that making a list of resolutions on New Year's Eve is the worst possible approach．Being exhausted in one area can reduce willpower in other areas，so it makes more sense to focus on a single goal at a time．In other words，don't try to quit smoking，adopt a healthy diet and start a new exercise plan at the same time．Taking goals one by one is a better approach．Once a good habit is in place，Baumeister says，you'll no longer need to draw on your willpower to maintain the behavior．Eventually healthy habits will become routine，and won't require making decisions at all．
   Many questions about the nature of self-control remain to be answered by further research．Yet it seems likely that with clear goals，good self-monitoring and a little practice，you can train your willpower to stay strong in the face of temptation．

（1）From the studies in the passage we learn that        ．
A．people have unlimited self-control
B．high motivation ensures one's success
C．willpower is hardly completely exhausted
D．too many temptations often lead to failure
（2）The underlined phrase "tap into" in Paragraph 3 most probably means        ．
A．make use of
B．run out of
C．build
D．increase
（3）The author compares self-control to muscles        ．
A．to prove the long-term effects of willpower
B．to show the significance of regular exercise
C．to argue that self-control can be easily used up
D．to explain the benefits of practicing self-control
（4）To develop a good habit，which of the following does the author prefer？
A． "I will give up dessert and do exercise．"
B． "I will set three goals this new semester．"
C． "I will keep myself from any temptation．"
D． "I will read an English novel every month．"

共享时间:2018-03-29 难度:2 相似度:1

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203033. （2017•铁一中学•一模） ONE day I saw a TV advertisement．A couple - she in a black dress，he in a super-stylish shirt and tie - was enjoying a candlelit （烛光的） meal accompanied by romantic music．The location？Pizza Hut．I nearly choked on my tea．
   "What？!" I laughed to my Chinese friend． "Pizza Hut is trying to be all gourmet（美食的）and fashionable？!" My friend looked confused． "But Pizza Hut is fashionable，" she said． " You go there for a special meal．"
   In China，chain restaurants-especially the big multinational ones-are cool．Going to Starbucks，for example，is a status symbol．It not only says， " I'm rich enough to buy this overpriced coffee，" but also， "I'm cosmopolitan（见多识广的）enough to be part of globalization．"
   Where I come from in the UK，however，chains are neither fashionable nor gourmet．Chains are where you go on New Year's Day when nowhere are neither fashionable nor gourmet．Chains are where you go on New Year's Day when nowhere else is open，or when you are 5 years old and your parents can't stand hearing． "I'm hungry!" any longer．In my own case（with regards to McDonald's），a chain is where you are taken on your first "date"．Even at the age of 13，I knew to give the guy the "let's just be friends" phone call the next day．
   In the UK，independent cafes and restaurants are making a comeback on the fashion scene．Nowadays，a Londoner who says "let's meet for a coffee at Monmouth" （an independent café） is much cooler than one says "let's go to Starbucks"，Even if Monmouth's coffee is a little more expensive，there's a satisfaction in knowing your pounds aren't going straight to the big corporations．
   Of course，there are chain stores all over the UK；you can't go five minutes without spotting a Costa Coffee．But numbers do not add up to good taste．I do，however，have a confession．After moving to China I had moments when all the rice and Kung Pao Chicken became too much．I，too，have retreated to McDonald's．Even so，I would never describe my Big Mac as "haute cuisine．"
（1）Many Chinese people like to go to multinational chain restaurants because        ．
A．the restaurants give customers a taste of foreign culture
B．the restaurants offer different food and drinks from other restaurants
C．they believe that eating there will show their wealth and social status
D．these restaurants are perfect places for a romantic date
（2）Which of the following statements is TRUE？
A．The author has grown tired of Chinese food．
B．Branches of Monmouth's café can be found all over the UK．
C．Most independent stores are closed on New Year's Day in the Uk．
D．It is cool in the UK to take your first date to a chain restaurant．
（3）What does the underlined word " haute cuisine" in the last paragraph mean？
A．high-class cookery
B．expensive cookers
C．delicious food
D．a fashionable tradition
（4）What is the main point of the article？
A．The difference between Chinese food and the western food．
B．The comeback of independent cafes and restaurants in the UK
C．What makes chain restaurants gourmet and fashionable both in China and the UK．
D．The different attitudes towards chain restaurants of Chinese and British people．

共享时间:2017-03-09 难度:2 相似度:1

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203035. （2017•铁一中学•一模） The following passage is adapted from the writings of a Nobel Prize-winning scientist．
   Any scientist who is not a pretender will admit the important part that luck plays in scientific discovery．A colleague and I carried out an experiment in which little tissue fragments（组织碎片），which were very difficult to work with，were injected into mice of different DNA strains．If we had been more experienced，we would have injected only white blood cells （which would have been easier to handle） into the mice．We now know that if we had done this，we would not have made the discovery．Obviously，we were lucky，but our scientific training enabled us to recognize the significance of the accident．
   It might nevertheless seem as if luck plays a significant role in scientific discovery．However，I would like to challenge this view for the following reasons：we sometimes describe as "lucky" a person who wins a prize in a lottery at long odds；but if we describe such an event as luck，what word shall we use to describe the accidental discovery of a lottery ticket that turns out to be the winning one just on a park bench？
   The two cases are quite different．A person who buys a lottery ticket is putting himself or herself in the way of winning a prize．This individual has，so to speak，purchased candidacy（候选资格）for such a turn of events and all the rest is a matter of mathematical probabilities．So it is with scientists．A scientist is anyone who，by observations and experiments conducted，by the literature read，and even by the company kept，puts himself or herself in the way of making a discovery．These individuals，by deliberate action，have enormously enlarged their awareness-their candidacy for good fortune-and will now take into account evidence of a kind that a beginner or a casual observer would probably overlook or misinterpret．
   Nearly all successful scientists have emphasized the importance of preparedness of mind，and I want to emphasize that this preparedness of mind is worked for and paid for by a great deal of effort and reflection．If these efforts lead to a discovery，then I think it would be inappropriate to credit such a discovery to luck．
（1）The outcome of the experiment described in paragraph one suggests that
A．luck play an insignificant part in scientific discovery
B．the injection of only while blood cells allowed the two scientists to make their discovery
C．It was difficult to inject little tissue fragments into mice of different DNT strains
D．the scientists concerned in the experiment were able to benefit from luck
（2）The author uses the example of the lottery winner in order to suggest that
A．blind luck occurs more frequently than people realize
B．luck plays a more important part in most events than people realize
C．luck is not the correct term to use when referring to a significant scientific discovery
D．luck is the best word to be used to describe the accidental discovery in science
（3）The author implies that a scientist achieves " candidacy for good fortune" by
A．making careful and repeated mathematical calculations
B．depending on feelings rather than on scientific research
C．performing enough experiments to increase the statistical probability of success
D．obtaining knowledge that allows him or her to recognize important evidence
（4）The primary purpose of the passage is to
A．make a single definition of luck
B．show that scientists discover what they intend to find
C．compare scientific discovery to a lottery game
D．discuss the role of luck in science

共享时间:2017-03-09 难度:2 相似度:1

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203074. （2017•铁一中学•三模） It has always been thought that alcohol causes people to put on weight because it contains a lot of sugar，but new research suggests a glass a day cold form part of a diet．Looking at past studies they found that，while heavy drinkers do put on weight；those who drink in moderation can actually lose weight．
A spokesman for the research team at Navarro University in Spain says，"Light to moderate alcohol intake，especially of wine，may be more likely to protect against，rather than promote，weight gain．"The International Scientific Forum on Alcohol research reviewed the findings and agreed with most of the conclusions，particularly that data do not clearly indicate if moderate drinking increases weight．
Boston University's Dr．Harvey Finkel found that the biologic mechanisms（生物学机制） relating alcohol to changes in body weight are not properly understood．His team pointed out the strong protective effects of moderate drinking on the risk of getting conditions like diabetes（糖尿病），which relate to increasing obesity．Some studies suggest that even very obese people may be at lower risk of diabetes if they are moderate drinkers．
The group says alcohol provides calories that are quickly absorbed into the body and are not stored in fat，and that this process could explain the differences in its effects from those of other foods．They agree that future research should be directed towards assessing the roles of different types of alcoholic drinks，taking into consideration drinking patterns and including the past tendency of participants to gain weight．
For now there is little evidence that consuming small to moderate amounts of alcohol on a regular basis increases one's risk of becoming obese．What's more，a study three years ago suggested that resveratrol，a compound present in grapes and red wine destroys fat cells．

（1）The passage is mainly for those

A．who produce wine	B．who have a drinking habit
C．who go on a diet	D．who are eager to lose weight

（2）How does the writer clarify his view at the very beginning？

A．By quotation	B．By comparison
C．By question．D．By statement．

（3）What can we learn from the passage ．
A．Current data clearly show that moderate drinking increases weight．
B．Resveratrol is proved to increase the risk of becoming fat．
C．The research found moderate drinking has a strong protective effect．
D．The specific roles of different types of alcoholic drinks are very clear．
（4）What is most likely to be discussed in the paragraph that follows？
A．How to do some easy experiments．
B．How to reduce the calories contained in wine．
C．How to prove the finding mentioned above．
D．How to make wine in a healthy way．

共享时间:2017-04-15 难度:2 相似度:1

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203543. （2025•铁一中学•高二上期末）      Last winter I enjoyed a brief adventure in Guatemala.Over a period of 12 days，I explored through the jungle to watch the sunrise and danced in the street during the holiday parade.But looking back on that trip，what I remember most vividly is a New Year's Eve in Guatemala City，at a lifeless hotel.Rather than a countdown to midnight，I counted down the hours until my departure.
    Nothing special happened during that night.Rather，the big role this hotel plays in my memories can be explained by a psychological principle called the recency effect."The recency effect helps to account for our tendency to remember the ending part of a sequence of events with far more clarity than the rest，"said Dr.Mary Poffenroth，a biopsychologist.
    She says it arises from our short-term memory's inability to hold on to more than a small amount of information at once.So while there is no magic formula to create lovely travel memories，employing the recency effect can turn a good trip into an unforgettable one.
    Dr.Stephanie，a Neuroscientist，says that while you can strategically set off the recency effect at a trip's end，you may have multiple opportunities to create lasting memories all along the way by breaking it up into smaller chunks.
    Keep in mind that the recency effect can also backfire."Ending an amazing trip with stressful flight delays，lost luggage or feeling unwell might be enough to overshadow the entire experience，resulting in remembering the trip as awful instead of joyful，"Stephanie said.
    To avoid disproportionately（不成比例地） spotlighting the final days，Poffenroth has created a trip.She amplifies（增强） earlier days in a trip to keep her memories well-rounded."I collect little bits that will remind me of that day：a subway ticket，a seashell，a cardboard drink with a pub's logo on it."Then，ae is packing on the last day， "I go through all my little found treasures and spend a few moments recalling each one，"she said."This gives me a sense of closure for that chapter of travel and makes the experience memorable."

（1）How did the author feel about the New Year's Eve in Guatemala City？
A.It was boring.
B.It was eventful.
C.It was relaxing.
D.It was cheerful.
（2）What do we know about the recency effect from paragraph 2？
A.It is based on a psychological principle.
B.It is widely used to create lovely memories.
C.It highlights the final part of a series of events.
D.It makes up for the inability of short-term memory.
（3）What does the underlined word"backfire"mean in paragraph 4？
A.Be avoided to some extent.
B.Be applied extensively.
C.Produce undesirable consequences.
D.Pose unexpected challenges.
（4）According to Poffenroth，which of the following may help travelers have good memories？
A.Share travel experiences.
B.Recall the final days of a journey.
C.Purchase as many souvenirs as possible.
D.Purposely gather reminders of a journey.

共享时间:2025-03-01 难度:2 相似度:1

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203572. （2025•临潼区•高一上期末）     Your ears are already dark，wet and full of oils and dead skin—a delicious meal for many bacteria （细菌）.It seems that wearing headphones could only make that environment more inviting to these bacteria.
    Actually，a 2008 study at Manipal University in India found that frequent （频繁的） use of headphones did increase the population of bacteria in the ear—mostly the staphylococcus，a common skin bacterium.And in 1992，a study at the Navy Medical Research Institute in Bethesda，Maryland in the US，found that the kind of over-the-ear headphones used by airlines had 11 times more bacteria after having been worn for just one hour.
    As unpleasant as this sounds，there is no need to worry about it.The headphones in the second study were clean before use，so began with a very low bacterial population and that increase resulted in a fairly low number in absolute terms.
    Also，this increase was not fast enough to increase the reproduction of bacteria.The study's authors said that most of the bacteria must already have been present in the deeper skins.The dark warm conditions while wearing headphones just encouraged some of them to come out and play.Furthermore，there are no signs that these bacteria can cause any harm.A 2002 study of call centre workers in Malaysia found no connections between headphone use and the illness in the ear.
    The bacteria that increase in your ear while you listen to music are the ones that live there normally，and your ear is able to deal with them.However，several studies have suggested that repeatedly putting on and taking off headphones may increase the risk of skin abrasions （擦伤） that allow harmful bacteria to get in and cause illnesses.

（1）What does the underlined word "inviting" in the first paragraph mean？
A.Equal.
B.Attractive.
C.Deadly.
D.Confusing.
（2）Why does the author mention the 2002 study？
A.To support a view.
B.To show a lifestyle.
C.To raise a question.
D.To present a product.
（3）What can be inferred from the last paragraph？
A.Researchers haven't finished the studies.
B.Listening to music makes us less focused.
C.We can kill harmful bacteria completely.
D.Improper use of headphones harms health.
（4）Which can be a suitable title for the text？
A.Proper Ways to Get Free from Bacteria
B.Doctors Can Treat an Illness in the Ear
C.Concerns about Bacteria on Headphones
D.Causes of the Rising Number of Bacteria

共享时间:2025-02-15 难度:2 相似度:1

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203777. （2024•铁一中学•高一上期末）     Despite the fact that parrots are well known for their long lives and complex cognition （认知），it remains unknown whether the two traits（特征） have influenced each other.
    "The problem has been sourcing good quality data，" said Simeon Smeele，a doctoral student at the Max Planck Institute of Animal Behavior （MPI-AB） and lead author of a study published in Proceedings of the Royal Society B that tried to solve this question.
    Scientists from the MPI-AB and the Max Planck Institute for Evolutionary Anthropology （MPI-EvA） teamed up with Species360 to compile data from over 130，000 individual parrots sourced from over 1，000 zoos to find the average life span of 217 parrot species.
    The analysis revealed an astonishing diversity in life expectancy，ranging from an average of two years for the fig parrot up to an average of 30 years for the scarlet macaw.
    Next，the team tried to determine whether or not parrots' renowned cognitive abilities had any influence on their longevity.Their results support the theory that increased brain size has enabled longer lifespans.Because brain size relative to body size can be an indicator of intelligence，the findings suggested that the parrots with larger brains were able to survive for longer in the wild.
    The scientists were surprised that factors such as diet，or the greater developmental time required to develop larger brains，did not lead to longer average lifespans. "We would have expected the developmental path to play a more important role because in primates it is this developmental cost that explains the link between brain size and longevity，" said Smeele.
    In the future，the team plan to explore if sociality and cultural learning in parrots might have also contributed to long lifespans.Smeele said： "Large-brained birds might spend more time socially learning foraging（觅食） techniques that have been around for multiple generations.This increased learning period could potentially also explain the longer life spans，as it takes more time but also makes the foraging repertoire（全部技能） more adaptive."

（1）What did the study aim to find out about parrots？
A The diversity in their life expectancies.
B．The factors that influence their intelligence.
C．The traits that help them survive in the wild.
D．The link between their cognition and life spans.
（2）How did the researchers carry out their study？
A．By surveying over 1，000 zoos.
B．By examining parrots' brains.
C．By analyzing the collected data.
D．By observing parrots' behavior.
（3）Which is a possible cause of parrots' longevity？
A．Their diet.
B．Their body size.
C．Their larger brains.
D．Their brains development time.
（4）What is the last paragraph mainly about？
A．Supporting evidence for the research results.
B．Potential applications of the research findings.
C．A further explanation of the research methods.
D．Further research based on current findings.

共享时间:2024-02-05 难度:2 相似度:1

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203804. （2024•周至四中•高一上期末）      Millions of years ago dinosaurs lived on the earth.In the days of dinosaurs the whole earth was warm and wet.There were green forests and they could find enough to eat.Later，parts of the earth became cold and dry，and the forests there died.Then dinosaurs could not find enough to eat.This must be one reason why dinosaurs died out.
   We can guess another reason.New kinds of animals came on the earth.Some had big brains and were fast and strong.They could kill dinosaurs.
   There may be other reasons that we don't know about yet.Scientists are trying to make more discoveries about dinosaurs.
   Dinosaurs have many sizes and shapes（形状）.Some were as small as chickens，while some were about 90 feet long.
   There were also terrible fights between dinosaurs.They might have happened more than 100 million years ago.Though there was no man to see any of the fights，we can be told by the footprints（足迹）that fights did take place.

（1）According to the passage，dinosaurs did exist only        on the earth.
A.for millions of years
B.millions of years ago
C.more than 100 million years ago
D.when it was warm and wet somewhere
（2）One reason why dinosaurs died out is that        .
A.there were too many dinosaurs
B.parts of the earth became warm and wet
C.there were many green forests
D.they couldn't find enough to eat
（3）We can see from this passage        .
A.scientists are trying to make some dinosaurs
B.dinosaurs are dangerous enough
C.dinosaurs are worth studying further
D.scientists know nothing about dinosaurs
（4）Those terrible fights can be explained by        .
A.footprints
B.imagination
C.rocks and forests
D.dinosaurs' eggs

共享时间:2024-02-09 难度:2 相似度:1

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203805. （2024•周至四中•高一上期末）      What killed King Tut？Historians and scientists have long believed that ancient Egypt's most famous king was probably murdered.But a recent scientific study claims to have found a different answer to this more than 3，300-year-old mystery.A team of researchers now say that King Tut，the boy ruler，died of complications（并发症） from a broken leg.
   Tut's full name was Tutankhamun.He was just 9 years old when he became the ruler of Egypt.His treasure-filled tomb was discovered almost a century ago.It was filled with royal riches，including a solid-gold coffin，a gold mask，and piles of jewelry.
   Unfortunately Tut died at the age of 19.Many experts have thought that Tut was killed by one of his advisers，named Ay，who wanted to be king.But due to a major modern science project，the idea is wrong.
   Researchers set out to solve the mystery of King Tut's death by using the tools of science，including DNA tests and electronic scans of his mummy（木乃伊）.Scientist Carsten Pusch conducted the tests on Tut for the new study.He thinks a broken leg contributed to the young king's death.
   More than 100 walking sticks were found in King Tut's tomb.This supports the team's findings.But how could a person die from a simple broken leg？
   Pusch also found DNA evidence in Tut's body that indicates he had malaria（疟疾），a disease carried by mosquitoes.Malaria severely weakens the immune system.
   Pusch and his fellow researchers believe the malaria and the bone disease together caused the king's fracture（骨折） to become deadly.Finally，the young king was just too weak to recover.

（1）It has long been believed by historians and scientists that        .
A.King Tut was the youngest ruler in the world history
B.King Tut was the richest ruler in the history of Egypt
C.King Tut was murdered by one of his advisers
D.King Tut was poisoned by one of his servants
（2）From the passage we can learn that        .
A.the king had been dead for 3，300 years
B.the king was buried grandly
C.the king was born with a bad immune system
D.the king's body was well kept in the tomb
（3）Researchers uncovered the mystery of King Tut's death by        .
A.testing the king's immune system
B.studying the walking sticks found in the tomb
C.performing experiments on mosquitoes
D.applying DNA tests and electronic scan technology
（4）The passage mainly tells us about        .
A.a different answer to King Tut's death
B.a famous boy king in ancient Egypt
C.a treasure-filled tomb discovered in Egypt
D.a team of researchers studying ancient tombs

共享时间:2024-02-09 难度:2 相似度:1

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203806. （2024•周至四中•高一上期末） It was a village in India．The people were poor．However，they were not unhappy．After all，their forefathers had lived in the same way for centuries．
   Then one day，some visitors from the city arrived．They told the villagers there were some people elsewhere who liked to eat frog's legs．However，they did not have enough frogs of their own，and so they wanted to buy frogs from other places．
   This seemed like money for nothing．There were millions of frogs in the fields around，and they were no use to the villagers．All they had to do was catch them．Agreement was reached，and the children were sent into the fields to catch frogs．Every week a truck arrived to collect the catch and hand over the money．For the first time，the people were able to dream of a better future．But the dream didn't last long．
   The change was hardly noticed at first，but it seemed as if the crops were not doing so well．More worrying was that the children fell ill more often，and，there seemed to be more insects around lately．
   The villagers decided that they couldn't just wait to see the crops failing and the children getting weak．They would have to use the money earned to buy pesticides （杀虫剂） and medicines．Soon there was no money left．
   Then the people realized what was happening．It was the frog．They hadn't been useless．They had been doing an important job-eating insects．Now with so many frogs killed，the insects were increasing more rapidly．They were damaging the crops and spreading diseases．
   Now，the people are still poor．But in the evenings they sit in the village square and listen to sounds of insects and frogs．These sounds of the night now have a much deeper meaning．

（1）From Paragraph 1，we learn that the villagers       ．
A．worked very hard for centuries
B．dreamed of having a better life
C．were poor but somewhat content
D．lived a different life from their forefathers
（2）Why did the villagers agree to sell frogs？
A．The frogs were easy money．
B．They needed money to buy medicine．
C．They wanted to please the visitors．
D．The frogs made too much noise．
（3）What might be the cause of the children's sickness？
A．The crops didn't do well．
B．There were too many insects．
C．The visitors brought in diseases．
D．The pesticides were overused．
（4）What can we infer from the last sentence of the text？
A．Happiness comes from peaceful life in the country．
B．Health is more important than money．
C．The harmony between man and nature is important．
D．Good old days will never be forgotten．

共享时间:2024-02-09 难度:2 相似度:1

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203957. （2024•鄠邑二中•高二下期末）     A recent study in the journal Current Biology found that people danced 12% more when very low frequency bass （低音） was played.Scientists wanted to see what factors of music make us want to dance. "We look at things like what kinds of rhythms make us really drawn in and want to move more，" said Daniel Cameron，a neuroscientist and the lead author of the study.
    Volunteers were led into a lab that was changed into an electronic dance music concert，with live music performed for them，who were equipped with headband s that had a motion capture sensor.The lab had special speakers that could play a very low frequency bass，undetectable to the human ear.The set lasted about an hour.Researchers introduced the very low bass every 2.5 minutes and found that the concertgoers moved more when the speakers were on —even though they couldn't hear it.
    Cameron thinks that our vestibular （前庭的） system can help explain the reason. "It's the inner-ear structures that give us a sense of where our head is in space，" he says. "That system is sensitive to low-frequency stimulation，especially if it's loud."
    Some people hear music and can't help but move，whether there are low，silent bass frequencies or not.So why do humans dance？ "It's hard to test this，but there has been some work on why we may have evolved this way.We know that moving together in synchrony （同步） when we're making music together and dancing together leads to social bonding.We feel better about the people we're with.We feel more connected with them，" Cameron says. "So you can imagine this has potential advantages for groups throughout the long history of our species."
    Evolution aside，Cameron finds value in knowing his study has uncovered just one of the ingredients for what makes us want to dance a little bit more.

（1）What does Cameron's research focus on？
A.The popularity of dancing among people.
B.The evolutionary reasons why humans dance.
C.The musical elements that encourage dancing.
D.The little effect of low frequency bass on dancers.
（2）What can we learn about the research setup described in paragraph 2？
A.Low frequency bass was played regularly.
B.Participants tracked their own movements.
C.The dance music was performed in a live concert.
D.The human speakers performed for an entire hour.
（3）Why might humans have evolved to dance according to Cameron？
A.To inspire imagination.
B.To promote communication.
C.To create work opportunities.
D.To stimulate the body's potential.
（4）What can be the best title for the text？
A.The Science of Dance
B.The Benefit Behind Dancing
C.The Role of Rhythms in Music
D.The Evolution of the Musical System

共享时间:2024-07-20 难度:2 相似度:1

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204078. （2023•西安中学•高一上期末）     Having a smart phone may not be as smart as you think.They may let you surf the Internet，listen to music and take photos wherever you are...but they also turn you into a workaholic，it seems.
   A study suggests that，by giving you access to emails at all times，the smartphone adds as much as two hours to your working day.Experts found that British people work an additional 460 hours a year on average as they are able to respond to emails on their mobiles.The study shows the average UK working day is between 9 and 10 hours，but 2 more hours is spent responding to or sending work emails，or making work calls.
   Almost one in ten admits spending up to three hours outside their normal working day checking work emails.Some workers say they are on call almost 24 hours a day.Nearly two-thirds say they often check work emails just before they go to bed and as soon as they wake up，while over a third have replied to one in the middle of the night.The average time for first checking emails is between 6：00 a.m and 7：00 a.m，with more than a third checking their first email in the period，and a quarter checking them between 11：00 p.m.and midnight.
   Ghadi Hobeika，marketing director of Pixmania，said： "The ability to access millions of Apps has made smartphone invaluable for many people.However，there are disadvantages.Many companies expect their employees to be on call 24 hours a day，seven days a week，and smartphones mean that people cannot get away from work.The more constantly in touch we become，the more is expected of us in work."

（1）With a smart phone the average UK working day is        .
A．11 to 12 hours
B．9 to 10 hours
C．8 hours
D．2 hours
（2）We can learn from the text that the British people        .
A．prefer to check emails in the morning
B．are crazy about different smartphone
C．work more hours with smartphones
D．shorten their normal working hours
（3）What does the underlined word "invaluable" mean？
A．Useless.
B．Necessary.
C．Expensive.
D．Cheap.
（4）What does Ghadi Hobeika feel about smartphones？
A．They are unimportant for most of the people.
B．They have disadvantages for some companies.
C．They are useful to improve the work ability.
D．They make it impossible for people to rest.

共享时间:2023-02-14 难度:2 相似度:1

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204080. （2023•西安中学•高一上期末） If English means endless new words，difficult grammar and sometimes strange pronunciation，you are wrong.Haven't you noticed that you have become smarter since you started to learn a language？
   According to a new study by a British university，learning a second language can lead to an increase in your brain power.Researchers found that learning other languages changes grey matter.This is the area of the brain which processes information.It is similar to the way that exercise builds muscles.
   The study also found the effect is greater when the younger people learn a second language.A team led by Dr.Andrea Mechelli，from London University，took a group of Britain people who only spoke English.They were compared with a group of "early bilinguals" who had learnt a second language before the age of five，as well as a number of later learners.
   Scanowed that grey matter density in the brain was greater in bilinguals than in people without a second language.But the longer a person waited before mastering a new language，the smaller the difference was.
   "Our findings suggest that the structure of the brain is changed by the experience of learning a second language，" said the scientists.It means that the change itself increases the ability to learn.
   Professor Dylan Vaughan Jones of the University of Wales has researched the link between bilingualism and math skill. "Having two languages gives you two windows on the world and makes the brain more flexible，" he said. "You are actually going beyond language and have a better understanding of different ideas."
   The findings were matched in a study of native Italian speakers who had learned English as a second language between the ages of 2 and 34.Reading，writing and comprehension were all tested.The resultowed that the younger they started to learn，the better. "Studying a language means you get an entrance to another world，" explained the scientists.

（1）The main subject talked about in this passage is       .
A．science on learning a second language
B．man's ability of learning a second language
C．language can help brain power
D．language learning and math study
（2）In the second paragraph，the writer mentions "exercise" in order to       .
A．say language is also a kind of physical labor
B．prove that one needs more practice when he/she is learning a language
C．show the importance of using the language when you learn the language
D．make people believe language learning helps grey matter work well
（3）In the last two paragraphs，the author wants to tell us that       .
A．learning a second language is the same as studying math
B．early learning of a second language helps you a great deal in study other subjects
C．Italian is the best choice for you as a second language
D．we'd better choose the ages between 2 and 34 to learn a second language

共享时间:2023-02-14 难度:2 相似度:1

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dygzyyyn

2024-03-07

高中英语 | | 阅读理解

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