(2013·高考新課標全國卷Ⅰ,B)The baby is just one day old and has not yet left hospital.She is quiet but alert (警覺).Twenty centimeters from her face researchers have placed a white card with two black spots on it.She stares at it carefully.A researcher removes the card and replaces it by another,this time with the spots differently spaced.As the cards change from one to the other,her gaze(凝視) starts to lose its focus—until a third,with three black spots,is presented.Her gaze returns:she looks at it for twice as long as she did at the previous card.Can she tell that the number two is different from three,just 24 hours after coming into the world?
Or do newborns simply prefer more to fewer? The same experiment,but with three spots shown before two,shows the same return of interest when the number of spots changes.Perhaps it is just the newness? When slightly older babies were shown cards with pictures of objects (a comb,a key,an orange and so on),changing the number of objects had an effect separate from changing the objects themselves.Could it be the pattern that two things make,as opposed to three? No again.Babies paid more attention to squares moving randomly on a screen when their number changed from two to three,or three to two.The effect even crosses between senses.Babies who were repeatedly shown two spots became more excited when they then heard three drumbeats than when they heard just two;likewise (同樣地) when the researchers started with drumbeats and moved to spots.
小題1:The experiment described in Paragraph 1 is related to the baby’s________.
A.sense of hearing B.sense of sight
C.sense of touch D.sense of smell
小題2:Babies are sensitive to the change in________.
A.the size of cards B.the colour of pictures
C.the shape of patterns D.the number of objects
小題3:Why did the researchers test the babies with drumbeats?
A.To reduce the difficulty of the experiment.
B.To see how babies recognize sounds.
C.To carry their experiment further.
D.To keep the babies’ interest.
小題4:Where does this text probably come from?
A.Science fiction.
B.Children’s literature.
C.An advertisement.
D.A science report.

小題1:B
小題2:D
小題3:C
小題4:D
本文是一篇說明文。主要介紹了研究人員通過一些卡片上黑點的數(shù)量來檢驗嬰兒對于數(shù)量變化的敏感程度,發(fā)現(xiàn)當數(shù)量相對多的時候,比較容易引起嬰兒的注意,使他們變得更加興奮。
小題1:解析:選B。細節(jié)理解題。根據(jù)第一段中的She stares at it carefully.“嬰兒認真地盯著看”可知,研究人員研究的是孩子的視覺。A項指“聽覺”;C項指“觸覺”;D項指“嗅覺”,這與原文中的stares反映的信息不一致。
小題2:解析:選D。細節(jié)理解題。根據(jù)第一段中的As the cards change from one to the other,her gaze(凝視)starts to lose its focus—until a third,with three black spots,is presented.Her gaze returns...可知,隨著卡片上黑點數(shù)量的變化,嬰兒的注視也發(fā)生變化,表明了嬰兒對于數(shù)量的變化比較敏感。A項size指卡片的大;B項指圖畫的顏色;C項指結(jié)構(gòu)的形狀,這些與原文的信息不一致。
小題3:解析:選C。細節(jié)理解題。第二段中研究人員先是通過卡片上的黑點來測驗嬰兒對于數(shù)量的變化的敏感程度;根據(jù)第二段中的The effect even crosses between senses...three drumbeats than when they heard just two;likewise(同樣地)when the researchers started with drumbeats and moved to spots.可知,研究人員又做了擊鼓的實驗,這樣做的目的是更加深入地研究嬰兒對于數(shù)量變化的敏感程度,故選C。A項“減少實驗的難度”;B項“看看嬰兒怎樣辨別聲音”;D項“保持嬰兒的興趣”,在文中均找不到支持信息。
小題4:解析:選D。文章出處題。本文提到了experiment和researchers等,可知是一些研究人員做了一個實驗,來檢驗嬰兒們對于數(shù)量的變化是不是敏感,所以本文屬于一個科學(xué)研究報告,因此選D。A項表示“科幻小說”;B項表示“兒童文學(xué)”;C項表示“一則廣告”,均與本文的內(nèi)容不符。
練習(xí)冊系列答案
相關(guān)習(xí)題

科目:高中英語 來源:不詳 題型:閱讀理解

It's hardly surprising that weather is a favorite topic for so many people around the world—it affects where we choose to live, what we wear, our moods, and perhaps even our national characteristics.Studies have shown that changeable weather can make it difficult to concentrate, cloudy skies slow down reaction, and hot,dry winds make many people bad­tempered.
If you live in a place like Britain, where the weather seems to change daily if not hourly,you could be forgiven for thinking that the weather is random.In fact the weather is controlled by systems which move around areas of the globe.In the UK the weather depends on depressions (低壓氣流), often called lows,and anticyclones(反氣旋),also known as highs.These systems start in the Atlantic Ocean, and make their way across the British Isles from the west to the east.Highs bring sunny weather, while lows bring rain and wind.In modern times, human activities seem to be altering weather patterns.Gases produced by heavy industry change the temperature of the earth's surface,and affect cloud formation.Some researchers say that factories in Europe and North America may have been one of the causes of the droughts in Africa in the 1980s.
The human race has always tried to guess the weather,especially in areas of the world where there are frequent changes.Traditional rhymes point to early attempts to identify weather patterns; popular poems include:
Red sky at night, shepherd's delight;red sky in the morning, shepherd's warning.
Flies will swarm before a storm.
Rain before 7,clear by 11.
While folk wisdom can provide a guide to help forecast weather, today's methods of prediction increasingly rely on  technology.Satellites, balloons,ships, aircrafts and weather centers with sensitive monitoring equipment, send data to computers.The data is then processed, and the weather is predicted.However,even this system cannot predict weather for longer than about a week.
小題1:When weather keeps changing,________.
A.people become bad­tempered
B.people's reaction slows down
C.people find it hard to focus on their work
D.people find it easy to focus on their work
小題2:The weather in Britain is________.
A.randomB.moist
C.depressingD.satisfying
小題3:According to a traditional rhyme, if there is a red sky at night, the next day will be________.
A.windy B.rainy
C.fine D.snowy
小題4:Which of the following statements is TRUE?
A.Anticyclones often bring rain and wind.
B.Weather forecasting has been done for a long time.
C.Weather could never be predicted.
D.Modern methods of weather prediction are developed from folk wisdom.
小題5:What is mainly talked about in the second paragraph?
A.Changes in weather.
B.Weather in Britain.
C.African droughts.
D.Research on weather.

查看答案和解析>>

科目:高中英語 來源:不詳 題型:閱讀理解

(2013·高考四川卷,E)Fear may be felt in the heart as well as in the head,according to a study that has found a link between the cycles of a beating heart and the chance of someone feeling fear.
Tests on healthy volunteers found that they were more likely to feel a sense of fear at the moment when their hearts are contracting(收縮) and pumping blood around their bodies,compared with the point when the heartbeat is relaxed.Scientists say the results suggest that the heart is able to influence how the brain responds to a fearful event,depending on which point it is at in its regular cycle of contraction and relaxation.
Sarah Garfinkel at the Brighton and Sussex Medical School said:“Our study shows for the first time that the way in which we deal with fear is different depending on when we see fearful pictures in relation to our heart.”
The study tested 20 healthy volunteers on their reactions to fear as they were shown pictures of fearful faces.Dr Garfinkel said,“The study showed that fearful faces are better noticed when the heart is pumping than when it is relaxed.Thus our hearts can also affect what we see and what we don’t see-and guide whether we see fear.”
To further understand this relationship,the scientists also used a brain scanner(掃描儀) to show how the brain influences the way the heart changes a person’s feeling of fear.
“We have found an important mechanism by which the heart and brain ‘speak’to each other to change our feelings and reduce fear,”Dr Garfinkel said.
“We hope that by increasing our understanding about how fear is dealt with and ways that it could be reduced,we may be able to develop more successful treatments for anxiety disorders,and also for those who may be suffering from serious stress disorder.”
小題1:What is the finding of the study?
A.One’s heart affects how he feels fear.
B.Fear is a result of one’s relaxed heartbeat.
C.Fear has something to do with one’s health.
D.One’s fast heartbeats are likely to cause fear.
小題2:The study was carried out by analyzing________.
A.volunteers’ heartbeats when they saw terrible pictures
B.the time volunteers saw fearful pictures and their health conditions
C.volunteers’ reactions to horrible pictures and data from their brain scans
D.different pictures shown to volunteers and their heart­brain communication
小題3:Which of the following is closest in meaning to“mechanism” in Paragraph 6?
A.Order. B.System.
C.Machine. D.Treatment.
小題4:This study may contribute to________.
A.treating anxiety and stress better
B.explaining the cycle of fear and anxiety
C.finding the key to the heart­brain communication
D.understanding different fears in our hearts and heads

查看答案和解析>>

科目:高中英語 來源:不詳 題型:閱讀理解

Last year, over 206,000 students from the United States studied abroad. Does that number surprise you? These students already know the benefits of studying abroad. You may be wondering why you should study abroad. Here are some answers for you.
◆ Timing
The absolutely best time in your life to study abroad is when you are in college. If you miss this opportunity, it’s almost impossible for you to do it later in life.
◆ To gain cross-cultural experience
Life overseas makes you see your everyday world in a whole new light. You don’t even realize it, but our culture shapes the way we view the world and affects us every minute of the day. Differences in culture are more than just differences in language, food, clothing and art.
◆ To improve your communication skills and your self-confidence
People who study abroad tend to be willing to take risks, willing to put themselves in unusual situations, and able to solve problems.
◆ To become more fluent in a language or to learn a new language
The world market is becoming smaller, and many companies require a second language. Foreign languages are not only valuable in the job market but also valuable in the real world.
◆ For the adventure
Travel to other cities within your host country and around neighboring countries. As you get to know your new classmates, roommates, and host family, you will gain a unique view on the host culture. Discover the differences and, more importantly, the many similarities between your worlds. The friendships you make will last long after the program.
◆ To learn more about yourself
Find out who you really are. What are your limits? How do you overcome the difficulties you’ve never encountered before? How independent are you? These questions are hard to answer until you are removed from your usual surroundings. After solving difficult problems on your own overseas, you’ll find that almost nothing will confuse you at home. Students who study abroad commonly report that their study abroad experience actually changed their lives.
小題1:The passage mainly talks about _______.
A.the benefits of studying abroad
B.the time for studying abroad
C.the difficulty you come across when you're abroad
D.some tips on how to get used to a new environment
小題2:What is the best time in your life to study abroad according to the passage?
A.When you're at work.B.When you are free.
C.At any time you like.D.When you are in college.
小題3:What does the underlined word“encountered” here mean?
A.Opposed.B.Experienced.C.Solved.D.Explained.
小題4:All of the following are mentioned in the passage as reasons for studying abroad EXCEPT _______.
A.getting cross-cultural experience
B.improving communication skills and self-confidence
C.improving your foreign language
D.learning how to get along with people

查看答案和解析>>

科目:高中英語 來源:不詳 題型:閱讀理解

An estimated 80 percent of American adults think music lessons, though at times boring and challenging in the eyes of some kids, improve children’s ability to learn or their performance in school . They say that the satisfaction for learning to play a new song helps a child express creativity.
Researchers at Harvard University, however, have found that there’s one thing musical training does not do. Samuel Mehr, the leading researcher of the new study, said it is wrong to think that learning to play a musical instrument improves a child’s intellectual development. The evidence comes from studies that measured the mental ability of two groups of 4-year-olds and their parents. One group attended music class; the comparison group went to a class that places importance on the optical arts-arts that can be seen.
“We found no evidence for any advantage on any of these tests for the kids participating in these music classes,” said Mehr.
Samuel Mehr says researchers have carried out many studies in an effort to learn whether musical training can make children smarter. Only one study seems to show a small percentage increase in IQ, intellectual scores among students after one year of music lessons.
He does not believe that IQ is a good measure of a child’s intelligence. Therefore, the researchers in his study compared how well children in the musical training group did on mental processing tasks, then the results were compared to those of children who did not take lessons.
Music lessons may not offer children a fast easy way to gain entry to the best schools later of their life, but the training is still important.
Mr Mehr notes that the works of writer William Shakespeare are not taught , so the children will do better in physics. He says Shakespeare is taught because it is important for cultural reasons.“And I don’t think music needs to be any different than that.”
小題1:What attitude do most American grown-ups have towards music lessons? _________
A.Uninterested B.Approving C.Doubtful D.Uncertain
小題2:The underlined word“optical”in Paragraph 2 probably means       .
A.visual B.colorful C.traditional D.serious
小題3:According to Samuel Mehr, _________ .
A.many studies show that music training can improve IQ
B.IQ is a good measure of a child’s intelligence
C.music can enable a child to go to a better school
D.music should be taught for cultural reasons
小題4:The study shows that       .
A.early music training has negative effects
B.musical lessons should be stopped at school
C.musical training doesn’t improve kids’ intelligence
D.playing musical instrument makes kids more creative

查看答案和解析>>

科目:高中英語 來源:不詳 題型:閱讀理解

Many people are concerned about the state of the earth in terms of its energy supplies and changing climate.The clear message broadcast by all responsible governments is that every person has a part to play.Here are some detailed instructions.
1.Prevent pollution by disposing(清理) of all your litter and waste in the correct,legal way,such as using on­street waste receptacles(容器) when you are out and about,or putting it in your domestic rubbish can when you're at home.Follow local procedures for normal waste disposal.Contact your local authority for advice on disposing of unusual waste items,such as paint and computer parts.
2.Recycle all materials that can be processed by your local authority.Place plastics,metals,paper and glass in the correct collection receptacles.Donate unwanted items to the charities that are happy to accept good condition clothing,furniture and even automobiles.
3.Look after reserves of water by making sure you turn off the tap after use and by repairing leaks(滲漏) and drips.Purchase water­efficient appliances.Take showers instead of baths.Gather rainwater for garden use and use your lawn sprinkler less often or not at all.
4.Save energy by choosing Energy Star products.Turn these off,as well as lights,when you don't need them to be on.Use air condition and heating less often.Make sure your home is insulated correctly to maintain a steady temperature.
5.Reduce the amount of the material you use.Print emails occasionally or not at all rather than printing them every time.You buy new things when you actually need them rather than on a whim(心血來潮).Organize a car pool with friends to use fuel efficiently.
In a word,we should try to use the world's resources efficiently to protect the environment.
小題1:When you have a walk in the park,you________.
A.can throw away the waste freely
B.had better take along the waste
C.can throw the waste into rubbish can
D.should put the waste in your domestic rubbish can
小題2:Which can't be recycled according to the passage?
A.Metal.B.Glass.
C.Automobiles.D.Paint.
小題3:Why should you take showers instead of baths?
A.Because it is comfortable.B.Because it can save lots water.
C.Because it can gather water.D.Because it is convenient to use.
小題4:What's the main idea of the whole passage?
A.How to protect the environment?
B.Reduce the amount of the material you use.
C.Some instructions in energy supplies.
D.Why should each play a part in saving energy?

查看答案和解析>>

科目:高中英語 來源:不詳 題型:閱讀理解

BEIJING - By the end of 2011 China-made supercomputers will say goodbye to foreign microchips(微芯片) and start using their own "Chinese core(核心)", according to one of the country's leading scientists, Hu Weiwu.
Hu told reporters on Saturday that the "Dawning 6000" supercomputer, developed by the Institute of Computing Technology of CAS and the Dawning Information Industry Company (DIIC), will adopt Loongson microchips for the first time as its core parts. It will have a computing speed of more than 1,000 trillion operations a second.
Making supercomputers with Chinese microchips is one of the nation's major science and technology projects. Three organizations - the Institute of Computing Technology of CAS, Jiangnan Institute of Computing Technology and the National University of Defense Technology (NUDT) - have their own supercomputer projects.
According to their schedules, all three institutions will need to meet the target of using domestically(國內(nèi)的) developed microchips by the end of this year. Hu said the new supercomputer will use fewer than 10,000 Loongson microchips, and will also be more energy-efficient.
Tianhe-1A, developed by NUDT in Hunan's provincial capital Changsha, is the fastest supercomputer in the world. However, Tianhe-1A largely runs on 14,336 CPUs made by Intel, and 7,186 GPUs (processing units) from Nvidia, two US chip-makers.
Hu said there will be difficulties ahead as there is little affiliated equipment specially developed for these supercomputers. "We have enough supercomputers in China but still can't make full use of them," He said.
Hu added that although the China-made CPUs have improved since they were first produced in 2002, they have a long way to go to compete with US chip-makers such as Intel.
小題1:What’s the best title for this passage?
A.The Arrival of Chinese Supercomputers
B.Homemade CPUs with a Long Way to Go
C.The Supercomputers of Three Organizations in China
D.Homemade CPUs on the Way for Local Supercomputers
小題2:What will raise the speed to more than 1,000 trillion operations a second.?
A.Dawning 6000B.Loongson microchips
C.DIICD.Tianhe-1A
小題3:What do we know about Tianhe-1A?
A. Not all the parts of Tianhe-1A are made by China.
B. Tianhe-1A is developed by CAS and DIIC.
C. Tianhe-1A will use fewer than 10,000 Loongson microchips.
D. NUDT has produced a most powerful supercomputer in China.
小題4:The underlined word “affiliated” can be replaced by_______.
A.cheapB.suitableC.expensiveD.modern

查看答案和解析>>

科目:高中英語 來源:不詳 題型:完形填空

Some people will do just about anything to save money. And I am one of them. My family’s last vacation was a good         to prove it. It was my six-year-old son’s winter break from school, and we were         home from Fort Lauderdale after a week-long trip. The flight was        , and Delta, the airline, offered us $400 per person in credits to give up our seats and leave the next day. I had meetings in New York, so I had to        . But that didn't mean my husband and my son couldn't stay. I took my nine-month-old and took off for home.
The next day, my husband and son were offered more         to take an even later flight. Yes, I encouraged — okay, ordered — them to wait it out at the        , to "earn" more Delta Dollars. Our total take: $1,600. Not bad, huh?
Now some people may think I'm a bad mother and not such a great wife either. But as a big-time bargain hunter, I know the value of a        . And these days, a good deal is something few of us can afford to        .
I've made living looking for the best deals and         the worst tricks. I have been the consumer reporter of NBC's Today show for over a decade. So far, I feel proud that I have written a couple of         including one titled Tricks of the Trade: A Consumer Survival Guide. And I really do what I         in.
I tell you this because there is no         in getting your money’s worth. Honestly, I’m also         when it comes to shoes, clothes for my children, and expensive restaurants. But I wouldn't hesitate to spend on a good haircut. It keeps its shape longer, and it's the first thing people        . And I will also spend on a classic piece of furniture.         lasts.
小題1:
A.sampleB.excuseC.situationD.example
小題2:
A.leavingB.headingC.gettingD.a(chǎn)rriving
小題3:
A.overbookedB.overcrowdedC.overworkedD.overpowered
小題4:
A.get onB.get over C.get backD.get away
小題5:
A.seatsB.creditsC.bargainD.value
小題6:
A.flightB.officeC.schoolD.a(chǎn)irport
小題7:
A.dollarB.timeC.familyD.work
小題8:
A.pass upB.pass downC.pass along D.pass on
小題9:
A.expanding B.expectingC.exposingD.explaining
小題10:
A.dictionariesB.newspapersC.novelsD.books
小題11:
A.believeB.putC.giveD.come
小題12:
A.harmB.shameC.doubt D.shock
小題13:
A.generousB.tightfistedC.joyfulD.patient
小題14:
A.noticeB.realize C.know D.understand
小題15:
A.SatisfactoryB.Quantity C.Ability D.Quality

查看答案和解析>>

科目:高中英語 來源:不詳 題型:閱讀理解

I got tired of living the life that everybody told me I “should” be living, so one day I decided to start living life in my own ways. Frustrated(挫。﹚ith my job, I came home, put on my shoes, and just started running. It felt so good to be free. That first day I ended up running 30 miles without stopping. Yes, I had rediscovered my old passion ( 酷愛的事物) — and it felt so good that I set a goal to support myself and my family from my running alone.
I trained hard every day. Since I wanted to be the best I could be, I knew I would have to set some clear goals for myself. A couple of my goals were: run a 135-mile ultra-marathon(超級馬拉松) across Death Valley, win the Badwater Ultra-Marathon, and run a marathon to the South Pole.
I had no idea how I was going to achieve these goals, but they certainly encouraged me to work hard. Today, I am really grateful to say that I have achieved all of them. Shortly after completing these goals, I set another goal: to run fifty marathons, in fifty states, in fifty days. Nobody had done anything like this before. To be honest, I was not quite sure if I could. But there was only one way to find out…so I just started training and preparing to give it my best try.
I completed that goal one year ago, and it felt great! But for me, life is not all about achieving goals. Sure, it feels good to succeed, but the greatest reward for me was learning more about myself and what I was able to do.
Only by stepping out into the unknown and stretching(使傾注全力) ourselves can we really discover what our true potential(潛能) is。
小題1:Which played an important role in the author’s success?
A.Setting goalsB.Learning from others.
C.Being honestD.Keeping on reading .
小題2:According to Paragraph 3, before achieving the goals the author felt _____________
A.very gratefulB.not quite confident
C.quite afraidD.not very satisfied
小題3:What does the underlined part “that goal” in Paragraph 4 refer to?
A.Win the Badwater Ultra-Marathon.
B.Run a marathon to the South Pole.
C.Run fifty marathons, in fifty states, in fifty days.
D.Run a 135-mile ultra-marathon across Death Valley.
小題4:The author probably agrees that____________.
A.life means achieving goals
B.success is the greatest reward
C.sports help develop our potential
D.everyone may have great potential.

查看答案和解析>>

同步練習(xí)冊答案