As children grow up, they become curious about different kinds of things. When they are babies, they are interested in the parts of their bodies and in the smiles of their mothers. The they become interested in the physical world around them: the plants, the
animals, the sky. Later, they become interested in the things that people have made: wheels, bicycles, cars. And when they are adults, their curiosity continues. Sometimes this curiosity leads to a career (生涯、職業(yè)) in science.
Scientists spend their lives trying to find out about the world. Those who work with the earth sciences study the earth, the oceans, and the skies. Other scientists who study living things work with the biological sciences. A third group of scientists study the physical sciences, e. g. physics, chemistry .
These scientists have already discovered a lot about our world. For example, they tell us why your heart beats fast when you run. They say that when you are quiet, your heart normally beats sixty-five or seventy-five times a minute. Your heart is a pump (泵) that pumps blood to all parts of the body. The blood carries oxygen and nutrition. When you run, your muscles work very hard and use the nutrition that the blood carries to them. The muscles need oxygen, too . So your brain sends a signal to the heart. The signal means that the muscles need more nutrition and oxygen. Then the heart beats fast and sends blood quickly to the muscles. It may beat 90 to 140 times a minute.
Of course, scientists cannot answer all of our questions. If we ask, “Why does the ocean water taste salty?”
Scientists will say that the salt comes from rocks. When a rock gets very hot or very cold, it cracks. Rain falls into cracks. The rain then carries the salt into the earth and into the rivers. The rivers carry the salt into the ocean. But then we ask , “What happens to the salt in the ocean? The ocean does not get saltier every year.” Scientists are not sure about the answer to this question.
We know a lot about our world, but there are still many answers that we do not have, and we are curious.　
小題1:According to the passage, which of the following statements is true?
A．People are curious in the same way.
B．People in different countries are interested in different things.
C．Men and women are curious about different things.
D．People of different ages are interested in different things
小題2:Scientists who work with the biological sciences study____.
A．the earth , the oceans and the sky
B．man-made things
C．plants and animals
D．ocean water
小題3:When you run, your muscles need ____.
A．more nutrition and oxygenB．more signalsC．more saltD．water

小題1:D
小題2:C
小題3:A

試題分析：人人都有好奇心,無論是小孩還是成人,這是這篇議論文的論點。文章還通過具體事例說明了就是因為"好奇心",人類科學才得以發(fā)展。
小題1:本題為正誤判斷題。根據(jù)文章第二段的描述,人處于不同的年齡階段,所好奇的對象也隨之而不同,因此選D 比較恰當。
小題2:細節(jié)理解題。文章第三段第二句有如下文: "Other scientists who study living things work with the biological sciences."其中 "living things"(生物)等同于 "plants and animals",故選C。
小題3:細節(jié)題。文章第四段幾處都有交待"your muscles work very hard and use the nutritionThe muscles need oxygen, too ...The signal means that the muscles need more nutrition and oxygen.",因此選A。
點評：科普類短文一直有些難度，此類閱讀理解首先要能基本讀懂文章，然后再根據(jù)問題，在文章中去找到相應(yīng)的依據(jù)，研究相關(guān)信息句給出準確的答案。特別是對一些長句難句的理解要細致。好在三道題都是細節(jié)題，學生抓住細節(jié)就可以了。
練習冊系列答案
相關(guān)習題

科目：高中英語 來源：不詳 題型：閱讀理解

Scientists would like to place a huge mirror in space above the earth. It might be sixty miles wide. It would be used to catch the rays (光線) of the sun. It would direct the sun’s rays upon the earth as a child might do to make sunlight dance on the wall with a hand mirror.
Why do they want to do this? The sun’s rays could be helpful in many ways. They could light up cities by night. The warm rays could stop frosts (霜凍) which might come at night and hurt fruit crops. They could melt (融化) dangerous icebergs in the ocean. Perhaps they could change cloud movements and bring rain where it is needed.
小題1:The huge mirror would ______.
A．stand 60 miles in height (高度) B．be 60 miles from side to side
C．cover 60 miles of the earth D．be 60 miles above the earth
小題2:The mirror would be used to ______.
A．reflect (反射) sunlightB．a(chǎn)bsorb (吸收) sunlight
C．see what the earth looks like D．see how clouds move
小題3:The strong light from the mirror could possibly ______.
A．hurt fruit cropsB．set fire to cities
C．bring longer daytimeD．shine through walls
小題4:The huge mirror is ______.
A．something in a story B．a(chǎn)lready made
C．just an ideaD．to be made soon

查看答案和解析>>

科目：高中英語 來源：不詳 題型：閱讀理解

Animals Can Sense Natural Disasters
Among the dead in South Asia’ s tsunami（海嘯）were many tourists at Sri Lanka’ s national wildlife park at Yala. But very few of the park’s animals — elephants, buffaloes, monkeys and wild cats — appear to have died. There are theories that animals can sense natural disasters and run away to safety.
First, it’s possible that the animals may have heard the quake before the tsunami hit. The underwater burst produced sound waves known as infrasound（次聲）. Humans can’t hear infrasound, but many animals including dogs, elephants, tigers and pigeons can.
A second early warning sign the animals might have sensed is ground vibration（震動）. The great quake would have produced vibrational waves known as Rayleigh waves. These vibrations move through the ground like waves moving on the surface of the ocean but faster. They travel at ten times the speed of sound. The Rayleigh waves would have reached Sri Lanka hours before the water hit. Mammals, birds, insects and spiders can sense Rayleigh waves. So the animals at Yala might have felt the Rayleigh waves and then run to higher ground.
But what about humans? While we can’t hear infrasound, we can feel it, although we don’t necessarily know we’re feeling it. We also experience Rayleigh waves by special sensors in our joints（關(guān)節(jié)）, which exist just for that purpose. Sadly, it seems we don’t pay attention to the information when we get it. Maybe we screen it out because there’s so much going on before our eyes and in our ears.
小題1:Why did few animals at Yala die when the tsunamis that caused a huge number of human deaths hit?
A．Because human beings cannot hear the infrasonic sound.
B．Because the animals were staying at a higher place in the park.
C．Because the animals were able to run much faster than human beings.
D．Because the animals might have picked up the danger signals and ran away.
小題2:Which of the statements about “Rayleigh waves” is true?
A．Rayleigh waves can be felt both by animals and human beings.
B．Rayleigh waves, just like infrasonic sound, can only be felt by animals.
C．Rayleigh waves are vibrational waves that usually cause quakes or tsunamis.
D．Rayleigh waves move on the ocean surface at a speed ten times that of sound waves.
小題3:According to the passage, which of the statement is true?
A．We can’t feel the infrasound so we can’t be informed of the danger.
B．We ignore the information of tsunami’s coming even though we can also get it.
C．We were so busy on our minds that we feel neither infrasound nor Rayleigh waves.
D．We can feel Rayleigh waves and infrasound so we can escape the danger like animals.

查看答案和解析>>

科目：高中英語 來源：不詳 題型：閱讀理解

Next Stop: Planet Mars
Fly me to the moon? That’s not far enough. On September 14, 2011, NASA released designs for a superrocket, the Space Launch System (SLS). This time the final destination will be Mars.
The SLS is a huge, liquid-fuelled rocket. If it is fully developed, it will be the most powerful rocket ever built. Its lift capability will be much bigger than that of the space shuttle of Saturn 5, the rocket that sent the Apollo missions to the moon.
NASA is planning to launch its first unmanned test flight in 2017. It is hoped that the first crew will fly in 2021 and astronauts will make it to a nearby asteroid(小行星) in 2025. NASA hopes to send the rocket and astronauts to Mars from the asteroid by the 2030s, according to the Associated Press (AP).
NASA used liquid rockets to send Apollo, Gemini and Mercury into space, but later changed to solid rockets boosters(助推火箭) because they were cheaper. Tragically, however, a booster flaw(缺陷) caused the space shuttle Challenger to crash in 1986. The new project plans to return to liquid fuel.
According to AP, the rockets will at first be able to carry 77 to 110 tons of payload(凈載重量). Eventually they will be able to carry 143 tons into space, maybe even as many as 165 tons, NASA officials said. By comparison, the Saturn 5 booster could lift 130 tons and the space shuttle just 27 tons.
However, unlike reusable shuttles, these powerful rockets are mostly one use only. New ones have to be built for every launch. This will be very costly.
NASA estimates that it will cost about $3 billion (19 billion yuan) per year, or $18 billion until the first test flight in 2017. NASA hopes to make money by allowing private companies to send astronauts to the International Space Station like giant taxi services, so that the program can be “sustainable”.
“This is perhaps the biggest thing for space exploration in decades,” said Senator Bill Nelson, a former astronaut. “The goal is to fly humans safely beyond low-Earth orbit(軌道) and deep into outer space where we cannot only survive, but one day also live.”
小題1:What is the outstanding feature of the SLS?
A．It’s equipped with an advanced control system.
B．It’s the first unmanned space shuttle in the world.
C．It’s the only vehicle that can fly astronauts to the moon.
D．It can send a lot more goods and passengers into space.
小題2:What is Saturn 5?
A．An aircraft that had a deadly flaw and crashed in 1986.
B．A series of rockets that once sent astronauts to the moon.
C．An unmanned space shuttle that was once famous in the world.
D．A kind of launch vehicle that will be used to carry astronauts to Mars.
小題3:NASA plans to use liquid fuel in the new project because ______ than solid rockets boosters.
A．it is less costly
B．it is much safer
C．it can last longer
D．it is more environmentally friendly
小題4:According to NASA’s schedule, it will take ______ years to fully complete the SLS program.
A．a(chǎn)bout 6B．a(chǎn)bout 10
C．less than 14 D．more than 19
小題5:It can be inferred from the passage that ______.
A．the SLS program is planning to make reusable rockets
B．the goal of the SLS program is to enable humans to live on the moon
C．the US government may not have provided enough money for the SLS program
D．NASA will use SLS as a space taxi between the Earth and Mars

查看答案和解析>>

科目：高中英語 來源：不詳 題型：閱讀理解

Anyone who has ever lost keys or money will have wished for a simple but effective way to make sure it never happens again. A US company is trying to help.
Using a tiny microchip which is implanted into the arm, they have come up with a replacement for cash or credit cards that cannot be left at home or dropped on the bus.
The Verichip is about the size of a grain of rice and works using radio frequency  identification technology. At a shop, a radio frequency “reader” would send a signal and the chip in your arm would respond with your unique identity number. That would give the “reader” your financial information, and money could be taken directly from your accounts and you wouldn't even have to reach for your wallet.
The company also hopes to include other information on the chip, such as medical records, building security codes(密碼) and passwords, making life even easier.
But not everyone is happy with the developments. Critics say that a lot can go wrong with the chip. A clever thief could build a fake(假的) reader that would steal your information without you knowing. So your money could still be stolen. Privacy is a big issue too. Stores, or even the government, only need to track the chip to find out what you buy, how much you spend and where you go.
And if you wanted to get rid of your chip,you would need an operation to remove it.
小題1:The Verichip is         .
A．the identity number B．the security code
C．a(chǎn) tiny microchipD．a(chǎn) radio reader
小題2:Paragraph 3 is mainly about         .
A．how the Verichip works
B．the importance of the Verichip
C．the development of the Verichip
D．how money is taken from your accounts
小題3:Which is true of the Verichip?
A．Your information on it will always be safe.
B．Medical records have already been included.
C．You can easily reach for your wallet using it.
D．An operation has to be performed to remove it.
小題4:What can be inferred from the text?
A．All people are satisfied with the chip.
B．The Verichip company has financial problems.
C．The chip needs improving to be widely accepted.
D．Many people have the experience of losing keys or money.
小題5:The author's purpose of writing the text is most likely to         .
A．warn B．a(chǎn)dvertiseC．compare D．introduce

查看答案和解析>>

科目：高中英語 來源：不詳 題型：完形填空

In 1990 a report was published about what the earth might be like 20 years from then on. The report was a result of a three-year  36 .?
According to the report, the picture of the earth in the year 2010 is not a  37  one. The world will be more  38  because the population will continue to grow . The population could be  39  6 300 million, almost 2 115 million more than in 1985 .More people would move into cities, especially cities in  40  countries . Cities like Cairo and Jakarta probably would  41  have 15 million by then .
Food production will  42  , but not enough to feed all the people . Farmers will grow 90% more food than they did in 1985,  43  most of the increase would be in countries that
 44  produce enough food for their people . Little increase is  45  in South Asia, Africa and the Middle East . Poor farming ways are 46  large areas of crop land, changing farms into deserts . More farmland is  47  as cities become larger and more houses are built . 48  will get worse as industrial countries burn more coal and oil .?Many of the world’s  49  could disappear as more and more trees are cut down . Energy will continue to be a serious problem . The experts say their picture of the earth for the year 2010  50  . They only carried out the situation that  51  today . By changing the situation, by  52  the problems, the picture can be changed . There is  53  time for the nations of the world to work  54  a plan of action . But they warned that  55  too long to make decisions would greatly reduce the chances of success .?
小題1:
A．learningB．projectC．noticeD．study
小題2:
A．pleasedB．pleasantC．safeD．blue
小題3:
A．dangerousB．beautifulC．crowdedD．terrible
小題4:
A．no more thanB．a(chǎn)s many asC．a(chǎn)s much asD．a(chǎn)s large as
小題5:
A．developingB．developedC．bigD．mountainous
小題6:
A．noneB．eachC．a(chǎn)llD．neither
小題7:
A．insistB．reduceC．increaseD．continue
小題8:
A．soB．butC．orD．however
小題9:
A．a(chǎn)lreadyB．hardlyC．partlyD．never
小題10:
A．wantedB．lackedC．foundedD．expected
小題11:
A．destroyingB．protectingC．disturbingD．interrupting
小題12:
A．savedB．lostC．discoveredD．used
小題13:
A．Air pollutionB．Water pollutionC．Some diseasesD．All farmland
小題14:
A．AnimalsB．plantsC．forestsD．people
小題15:
A．must be trueB．will come trueC．can’t be trueD．may be wrong
小題16:A. happens       B develops          C .exists            D. appears
小題17:
A．settlingB．working atC．a(chǎn)nsweringD．dealing
小題18:
A．noB．stillC．lessD．plenty of
小題19:
A．a(chǎn)boutB．inC．outD．for
小題20:
A．workingB．suggestingC．spendingD．waiting

查看答案和解析>>

科目：高中英語 來源：不詳 題型：閱讀理解

Play is the basic business of childhood, and in recent years more and more research has shown the great importance of play in the development of a human being. From earliest  infancy （嬰兒）, every child needs opportunity and the right material for play, and the main tools of play are toys. The main function of toys is to suggest, encourage and assist play. To succeed in this, they must be good toys, which children will play with often and will come back to again and again. Therefore, it is important to choose suitable toys for different stages of a child’s development.
In recent years research on infant development has shown that the standard a child is likely to reach, within the range of his inherited(遺傳的) abilities, is largely determined in the first three years of his life. So a baby's ability to benefit from the right play materials should not be underestimated. A baby who is encouraged, talked to and shown things and played with, has the best chance of growing up successfully.
The next stage, from three to five years old, curiosity knows no bounds. Every type of suitable toy should be made available to the child, for trying out, experimenting and learning, for discovering his own particular ability. Bricks and jigsaws and construction toys; painting, scribbling(亂涂) and making things; sand and water play; toys for imaginative and pretending play; the first social games for learning to play and get on with others．
By the third stage of play development—from five to seven or eight years old— the child is at school. But for a few more years play is still the best way of learning, at home or at school. It is easier to see which type of toys the child most enjoys.
Until the age of seven or eight, play and work mean much the same to a child. But once reading has been mastered, then books and school become the main source of learning. Toys are still interesting and valuable, which lead up to new hobbies, but their significance has changed —to a child of nine or ten years old, toys and games mean, as to adults, relaxation and fun.
小題1:The writer wants us to understand that a child_______.
A．cannot grow up without toysB．matures（使成熟） through play
C．uses toys as friendsD．has to be taught how to play
小題2:According to the passage, the abilities a child has inherited from his parents ________.
A．determine his character
B．will not change after the age of three
C．partly determine the standard he is likely to reach
D．to a large extent determine the choice of toys
小題3:The passage tells us that children are the most curious when they are about______.
A．two years oldB．one year oldC．six years oldD．four years old
小題4:The article is about_______.
A．the importance of play
B．the importance of books
C．the relationship between play and work
D．children’s speech development

查看答案和解析>>

科目：高中英語 來源：不詳 題型：閱讀理解

Some people have very good memory（記憶力） and they can easily remember quite long texts. There are other people who can only remember things when they have said them again and again. The famous English writer Charles Dickens said that he could walk down any long street in London and then tell you the name of every shop he had passed. Many great men of the world have a wonderful memory.
A good memory is greatly helpful in learning a language. Everybody learns his own language by remembering what he hears when he is a small child, and some children, like the boys and girls who live abroad(國外) with their parents, seem to learn two languages almost as easily as one. In school it is not so easy to learn a second language because the students have so little time for it, and they are very busy with other subjects too.
A man’s mind is like a camera, but it takes photos not only of what we see but also of what we feel, hear, smell and taste. When we take a real photo with a camera, Some people have very good memory（記憶力） and they can easily remember quite long texts.In the same way, there is much work to be done before we can keep a picture forever(永遠) in our minds.
Memory is a diary, and we all carry it about us. We keep things we have experienced (經(jīng)歷)in this diary.
小題1:Which of the following is true?
A．Charles Dickens had a good memory because he was a famous writer.
B．People without a good memory cannot be great men of the world.
C．People became great because they have a good memory.
D．Many people may never become great though they have a good memory.
小題2:To learn a language well, one must ________.
A．live abroadB．write it every day
C．often hear itD．go to school
小題3:The writer thinks a camera in one’s mind can take photos of ______.
A．what we see
B．what we feel and hear
C．what we smell and taste
D．what we see, feel, hear, smell and taste
小題4:If you have a good memory, ________.
A．you can learn a second language easily
B．you can remember things for ever easily
C．you can learn your own language easily
D．you can remember things better
小題5:Which of the following is true?
A．We all keep a diary in our mind.
B．One has to do a lot of work before he can keep a picture in his mind forever.
C．A person with a good memory can remember things forever.
D．A good memory helps to remember everything forever.

查看答案和解析>>

科目：高中英語 來源：不詳 題型：閱讀理解

Going to school from 8 am until 5 pm may sound terrible，but Sydney Shaw，a seventh grader at the Alain Locke Charter Academy on Chicago's West Side，has come to like it—as well as the extra 20 or so days that she's in class every year．“I'm sure every kid at this school says bad things about the schedule sometimes，”says Sydney, who was at school on Columbus Day, when most Chicago schools had a holiday．“But we all know it's for our benefit.”
Finding ways to give kids more classroom time，through longer hours，a longer school year，or both，is getting more attention．“If you want to look at schools where the achievement gap is narrowing, they're saying they couldn't do it without the added time，”says Jennifer Davis．“Even when you get good teachers into schools，you also need more time．”
According to studies, low-income students fall back more than two months in their reading skills over summer vacations．“It's over the summer months that poor kids fall behind，”says Karl Alexander，a sociologist．“If you have parents who themselves didn't succeed at school and aren't highly educated，kids aren't going to get those skills at home．”
Schools are asked to take a full year to plan how to best use the extra time—a process involving teachers，principals，students and parents．They are given outside support to help them base their plans on the best available analyses of student needs．It's still early，but officials are already seeing stronger test scores and a narrowing achievement gap．
But some critics are worried．“We risk producing something that's very expensive and time-consuming, and that will give educators a lot of trouble，”says Frederick Hess．“Before we spend all that extra money，I'd much rather see if we can figure out how to get 50 percent more instructional time out of the current school day．”
小題1:From the first paragraph，we learn that      ．
A．the longer schedule is harmful to kid's health
B．a(chǎn)ll Chicago students had a holiday on Columbus Day
C．Sydney Shaw supports the added time
D．few kids are bored with the lack of holidays
小題2:Low-income students fall behind in summer because      ．
A．no good teachers are willing to teach them
B．they can't get help from their parents
C．their parents are unwilling to hire private teachers
D．they themselves have no desire to learn
小題3:Some people are worried about adding school hours mainly because      ．
A．it will have a bad effect on the kids’ futures
B．the current school day has been too busy
C．no one supports the idea
D．it will be costly and time-consuming
小題4:The text is mainly about      ．
A．whether a longer school day will help narrow the achievement gap
B．how students have benefited from additional school hours
C．why the achievement gap among students needs to be narrowed
D．what causes the achievement gap among students

查看答案和解析>>

同步練習冊答案