Common sense would tell us that physically active children may be more likely to become active and healthy adults.
In the United States, elementary and middle schools are advised to give students two and a half hours of physical activity a week. That is what the Centers for Disease Control and Prevention and the American Heart Association recommend. They say high schools should provide about four hours of physical activity each week.
Yet many schools across the country have reduced their physical education programs. Just this week, a study reported that life expectancy has fallen or is no longer increasing in some parts of the United States. The situation is worst among poor people in the southern states, and especially women. Public health researchers say it is largely the result of increases in fatness, smoking and high blood pressure. They also blame differences in health services around the country.
In 2006, a study found that only four percent of primary schools provided daily physical education all year for all grades. This was true of eight percent of middle schools and two percent of high schools. The study also found that twenty-two percent of all schools did not require students to take any P.E.
Charlene Burgeson , a health expert says one problem for P.E. teachers is that schools are under pressure to put more time into academic subjects. Also, parents may agree that children need exercise in school. Yet many parents today still have bad memories of being chosen last for teams because teachers favored the good athletes in class.
But experts say P.E. classes have changed. They say the goal has moved away from competition and toward personal performance, as a way to build a lifetime of activity. These days, teachers often lead activities like weight training and yoga.
Some parents like the idea of avoiding competitive sports in P.E. class. Yet others surely dislike that idea. In the end, schools may find themselves in a no-win situation.
小題1: The underlined word “expectancy” in Paragraph 3 probably means “       ”                            
A.qualityB.lengthC.exceptionD.depth
小題2:According to the passage which of the following may not lead to poor health?
A.Fatness.B.Smoking
C.High blood pressure.D.Health service
小題3: What can be inferred after you read this passage?
A.Physical activities are becoming more and more popular in American schools.
B.All the schools provided daily physical education all year for all students.
C.Parents think children need physical education for their bad memories.
D.Students spent less time on physical education for academic pressure.
小題4: What is the main idea about this passage?
A.P.E. is the most important subject for all students.
B.P.E has changed its goal for some reasons in America.
C.It introduces us the present situation of P.E in American schools and its cause.
D.P.E can help students improve their academic subjects.

小題1:B
小題2:D
小題3:D
小題4:C

試題分析:小題1:B 推理題。根據(jù)第三段最后三行Public health researchers say it is largely the result of increases in fatness, smoking and high blood pressure. They also blame differences in health services around the country.都是在分析這種情況的原因,肥胖,抽煙和高血壓,這些都可以導致人死亡,那么說明這個詞指的是人的平均年齡在下降,故B正確。
小題2:D 細節(jié)題。根據(jù)第三段最后三行Public health researchers say it is largely the result of increases in fatness, smoking and high blood pressure. They also blame differences in health services around the country說明ABC三項都會導致健康不好,醫(yī)療保健會讓健康狀態(tài)好起來,故D符合句意。
小題3:D 推理題。根據(jù)文章倒數(shù)第三段第2句teachers is that schools are under pressure to put more time into academic subjects.說明學校處于要把時間放在文化課的成績上的壓力里之下。故D正確。
小題4:C 主旨大意題。文章討論的是美國學校體育教育的現(xiàn)狀和出現(xiàn)這種情況的原因。故C正確。
點評:文章討論的是美國學校體育教育的現(xiàn)狀和出現(xiàn)這種情況的原因。本文要求考生抓住文章的中心思想和每一段的段落大意,準確定位考點,合理判斷和推理。
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

Have you heard of the saying, “If anything is worth doing, it is worth doing well”? The proverb is a piece of advice to make effects towards perfection in whichever job one does. It could be a small task like folding up your clothes, or a major one like organizing a business meeting in your later life.
Perfection just needs paying attention to details. If it is your job to dust the furniture at home, dust it so that not a single spot of dirt shows from any direction. If your task is to make the beds, make them so that not a single crease(皺紋)shows on the bed-covers.
There are only two ways to do a job: either sloppily, or well. If you choose the latter, you need to realize that any job that qualifies as (取得…的資格)“your” work deserves your best. Perfection is an attitude that can be developed with just a little effect. It is a habit that is helpful to a person in later life. Let us prove with an example: you may be asked to turn in an essay on, for example, wildlife, for a school project. Instead of writing carelessly a few facts that you already know, you could make the project more effective by looking up a reference books, encyclopedias(百科全書)or websites for additional information. You could then go over the finished essay for slips(疏漏)and errors, and provide pictures where necessary. If you make it a habit to put in extra effort in your school homework, will it not help you to handle more difficult projects at the college or university level?
As Michelangelo, the famous 16th century sculptor and painter, once put it: Trifles(瑣事)go to make perfection, and perfection is no trifle.
小題1:According to the passage, to achieve perfection is _______.
A.to realize the quality of the work
B.to pay attention to details of one’s work
C.to do as many jobs as possible
D.to form the habit of doing things ahead of time
小題2:The underlined word “sloppily” in paragraph 3 may mean _______
A.badlyB.patientlyC.carefullyD.slowly
小題3:What can be inferred from the third paragraph?
A.It is necessary to provide pictures for your essay.
B.Websites are the sources of information you want.
C.Perfection is a habit that promises a good future.
D.You should make much effort to develop perfection.
小題4:The purpose of writing this passage is to _______.
A.introduce the famous painter Michelangelo
B.a(chǎn)dvise us to do the things that are worth doing
C.explain to us the meaning of the perfection
D.expect us to give our best to our work

查看答案和解析>>

科目:高中英語 來源:不詳 題型:閱讀理解

People should be warned against using mobile phones outdoors in stormy weather because they may“be struck by lightning”,according to doctors.
Three experts have described how a teenage girl was struck by lightning while using her phone in a large London park.The girl,aged 15,recovered,but a year later was still wheelchair-bound and found to be suffering complex physical and emotional problems.
The girl also had a perforate eardrum(打孔耳膜)on the side where she had been holding the mobile phone.She was having general recovery in Northwick Park Hospital,Middlesex.
Swinda Esprit,a senior house officer, said that while the brain and muscle damage was similar to that of many lightning victims—who can experience heart attacks on being struck—the ear problems were not.
She said that the damages were particularly relevant for people who might be involved in less serious lightning incidents,who might otherwise recover, but would never get their full hearing back if struck while on the phone.
“We were shocked by the damage,which is why we wanted to draw attention to it,”Dr Esprit said.“A year on and she still was suffering these difficult hearing.”
They added that three other cases had been reported in newspapers in China,South Korea,and Malaysia.In the Malaysian case,a sales executive was killed by lightning while talking on his phone during a thunderstorm near Kuala Lumpur.
“All these events resulted in death,”the doctors wrote.“This rare phenomenon is a public health issue,and education is necessary to stress the risk.”
The Australian Lightning Protection Standard recommends that metallic objects,including cordless or mobile phones,should not be carried outdoors during thunderstorms.However, “the United States National Weather Service says on its website that both are safe to use “because there is no direct path between you and the lightening”.
Paul Taylor, of “the Met Office'’,said the ear injuries were a consequence of mobile phones being metal,and not related to radio waves.
Mr. Taylor said that mobile phones should be treated as another piece of metal,similar to carrying coins or wearing rings,and people need to be warned against the possible danger.
小題1:What do we know about the teenage girl?
A.She was struck by lightning at schoo1.
B.She completely recovered from being struck.
C.She still suffered from mental problems.
D.She had to press her ear all day.
小題2:It can be inferred that damage done by lightening while using mobile phones      .
A.is more serious than that when one is not using a mobile phone
B.can be healed quickly except for heart attacks
C.is less serious because the victims can usually recover
D.is mainly in the brain and muscle of the victims
小題3:Why did doctors stress the risk about using phones outside in lightening?
A.Because more people are faced with it.
B.Because some deaths have been caused.
C.Because lightning is harmful for the brain.
D.Because a teenage girl got killed.
小題4:We can infer from the last three paragraphs that        .
A.both cordless and mobile phones are safe to use outside in lightning
B.there is no direct connection between lightning and ear injuries at all
C.opinions differ as to whether it is safe to use mobiles phones in lightning
D.ear injuries are the result of carrying coins or wearing rings in lightning
小題5:The purpose in writing this passage is       .
A.to draw attention to the risk of using mobile phones in lightening
B.to focus on various damages done to lightning victims
C.to tell us the news that a teenage girl was struck by lightning
D.to stress the danger of making phone calls in lightning

查看答案和解析>>

科目:高中英語 來源:不詳 題型:閱讀理解

There are three separate sources of danger in supplying energy by nuclear power.
First, the radioactive material must travel from its form of production to the power station. Although the power stations themselves are strongly built, the containers used for the transport of the materials are not. Normally, only two methods of transport are in use, namely road or rail. Unfortunately, both of these may have an effect on the general public, since they are sure to pass near, or even though, heavily populated areas.
Secondly, there is the problem of waste. All nuclear power stations produce waste that in most cases will remain radioactive for thousands of years. It is impossible to make these waste radioactive, and so they must be stored in one of the inconvenient ways that scientists have invented. For example, they may be buried under the ground, or dropped into deserted mines, or sunk in the sea. However, these methods do not solve the problem, since an earthquake could easily break the containers.
Third, there may occur the danger of a leak or an explosion at the power station. As with the other two dangers, this is not very likely, so it does not provide a serious objection to the nuclear program. However, it can happen.
Separately, these three types of dangers are not a great cause for worry. Taken together, though, the probability of disaster is extremely high.
小題1:Which of the following is FALSE ?
A.It is possible that a leak or an explosion occurs at a power station.
B.It is unusual for radioactive materials to be transported across land.
C.The containers are likely to be broken by an earthquake.
D.Nuclear wastes remain dangerous in most cases for many years.
小題2:The author thinks that the ways to store nuclear wastes are ____________.
A.easyB.impossibleC.reasonableD.ineffective
小題3:What do we learn from the last paragraph ?
A.The power station is a safe place.
B.The dangers of nuclear energy can be prepared.
C.The general public are strongly against the nuclear program.
D.Itself, none of the three dangers is very likely to cause much worry.
小題4: What is this passage mainly about ?
A.uses of nuclear power
B.Dangers from nuclear power
C.Public anger at nuclear power
D.Accidents caused by nuclear power.

查看答案和解析>>

科目:高中英語 來源:不詳 題型:閱讀理解

"If you want to see a thing well, reach out and touch it!"
That may seem a strange thing to say. But touching things can help you to see them better.
Your eyes can tell you that a glass ball is round. But by holding it in your hands, you can feel how smooth and cool the ball is. You can feel how heavy the glass is. When you feel all these about the ball, you really see it. With your skin, you can feel better. For example, your fingers can tell the difference between two coins in your pocket. You can feel a little drop of water on the back of your hand, too. You can even feel sounds against your skin. Have you ever wanted to know why some people like very loud music? They must like to feel the sounds of music.
All children soon learn what "Don't touch!" means. They hear it often. Yet most of us keep on touching things as we grow up. In shops, we touch things we might buy: food, clothes. To see something well, we have to touch it. The bottoms of our feet can feel things, too. You know this when you walk on warm sand, cool grass or a hard floor. All feel different under your feet.
There are ways of learning to see well by feeling. One way is to close your eyes and try to feel everything that is touching your skin. Feel the shoes on your feet, the clothes on your body, the air on your skin. At first, it is not easy to feel these things. You are too used to them!
Most museums are just for looking. But today some museums have some things to touch. Their signs say, "Do touch!" There you can feel everything on show.
If you want to see better, reach out and touch. Then you will really see!
小題1:By touching things ______.
A.you will have a strange feeling
B.you will learn how to reach out your hand
C.you can learn more about them
D.you can tell what colors they really are
小題2:Which of the following can be the best title of the story?
A.Touching by Feeling B.To See or to Feel
C.To See Better-Feel D.Ways of Feeling
小題3:Which of the following parts can tell you the difference between two coins in your pocket?
A.Your fingers. B.Your eyes. C.Your foot. D.Your back.
小題4:What can't your skin feel?
A.Sounds. B.Darkness.C.Water.D.Coins.
小題5:Which of the following is NOT true?
A.Touching is helping us to see better.
B.Our skins may help us enjoy music.
C.Feeling is a good way to learn.
D.Visitors can't feel the things on show in any museums.

查看答案和解析>>

科目:高中英語 來源:不詳 題型:閱讀理解

Whales live in the ocean, but they are not fish. They are warm-blooded mammals and must have air to breathe. The babies are born alive and drink milk from the mother's body. It took millions of years for the whale to develop as it is today.
Every spring groups of whales swim hundreds of kilometers to warm places to bear their young. Each group goes to the same place every year. The mothers take very good care of their babies. The fully grown whales are very gentle and playful with each other, and with humans. They “talk” to each other with a high noise that  sounds beautiful. This“talking” can be heard for more than 300 kilometers in open waters.
Yet humans kill over a hundred whales a day. They kill them to make whale oils and a lot of other things. Killing them is a modern business with modern machines and even harpoons( 魚叉炮) that explode( 爆炸) inside the whales. A whale dies very slowly and in great pain. Some ships kill every whale they can find, even the mothers and babies. Then there are no young whales to grow up or to bear more young.
小題1:A commonly mistaken belief is that ____.
A.whales are mammals
B.whales must have air to breathe
C.whales' babies drink milk
D.whales are fish
小題2:In the passage “mammals” refer to ____.
A.the animals which live in water
B.the animals which have wings and feathers
C.the animals which are fed on their mothers' milk
D.the things which live in earth and have no backbones
小題3:Every spring each group of whales ____.
A.swim only a few kilometers
B.return to the same place as they did before
C.go to different places
D.go to cold places to bear their young
小題4:When whales talk, it sounds like ____.
A.talkingB.whisperingC.quarrelingD.singing
小題5:Every year humans kill ____ all over the world.
A.nearly forty thousand whales
B.less than four million
C.a(chǎn)bout four thousand whales
D.a(chǎn)bout fourteen thousand whales

查看答案和解析>>

科目:高中英語 來源:不詳 題型:閱讀理解

If we want to deal with the association(交往) between boys and girls properly, here are some “dos and don’ts” for you to follow.
Keep a normal and healthy state of mind. Our schools and classes are made up of boys and girls. It is very natural for the boys and girls to make friends with each other. We should make as many friends as possible. We should keep in touch with the other sex(性別) in public instead of in secret.
Don’t be too nervous or too shy. If you are a shy person, you can also find a way out. First of all, you can make friends with the students who have the same interest and hobby as you. As both of you have much in common, you may have much to talk about. If you keep doing like that, little by little, you will gladly find you are also as free to express yourself as others.
Don’t fall into the ditch of early love. The boys and girls at adolescence(青春期) are rich in feeling. They are easy to regard the friendship as a sign of love and fall in love with each other at an early age. In my opinion, early love is a green apple that can’t be eaten. An apple won’t taste sweet until it is fully ripe. Boys and girls at middle school are too young to carry the heavy duty of love. Do keep out of early love.
小題1:The main idea of the passage is to ______.
A.tell students to keep away from early love
B.give some advice on how to associate between boys and girls
C.tell students how to make friends
D.teach boys how to talk with girls
小題2:We should keep in touch with the other sex in the following EXCEPT ______.
A.with a good state of mind
B.in real friendship
C.in public
D.in secret
小題3: If you are a shy person, you can _______.
A.find friends with the same interest and hobby first
B.only have a few friends of the same sex
C.not make friends with the other sex
D.not fail in love with other students easily
小題4:What does the underlined word “ditch” mean?
A.波浪B.泥潭C.圈套D.迷惑

查看答案和解析>>

科目:高中英語 來源:不詳 題型:閱讀理解

There is a lot of misunderstanding about studying. Most students have not been taught the principles behind really effective working. Imagine a graph showing the amount a person learns against the number of hours he works in a day. If he doesn’t do any work, he learns nothing (point 0). If he does an hour’s work he learns a certain amount (point 1). If he does two hours’ work he learns about twice as much (point 2). If he does more work he’ll learn still more (point 3). However, if he tries to do twenty-three and a half hours’ work in a day, he will be so tired that he’ll hardly remember anything: what he learns will be very little (point 4). If he did less work he’d learn more (point 5).
Now whatever the exact shape of the graph’s curve(曲線), made by joining these points, it must have a high point. Point “X” is the very maximum anyone can learn in the day. And this represents the optimum(最適度), the best, amount of work to do. It is the best possible compromise between adequate time at the books and fatigue(勞累). Fatigue is an absolutely real thing; one can’t escape it or ignore it. If you try to ignore it and press yourself to work past the optimum, you will only get on this downward slope and achieve less than the best – and then become very tired and lose your power of concentration.
The skill in being a student consists of getting one’s daily study as near the optimum point as possible. I cannot tell you what the optimum is. It differs with the type of work, it differs from person to person, and even in the same person it varies from week to week. You must try to find your own. Every day you study, bear this principle of the optimum in mind. When you feel yourself getting fatigued, if you find yourself reading the same paragraph over and over again and not taking it in, that’s a pretty good sign you’ve reached your highest point for the day and should stop. Most ordinary students find their optimum at five hours a day. Yours may be a little more or a little less – but if you get in five hours’ good work a day, you will be doing well.
Now, what are you doing with yourself when you aren’t working? Before examinations some students do nothing at all except sit in a chair and worry. Here is another misunderstanding. People often think that the mind works like the body; it does not. If one wanted to save one’s physical energy in order to cut the maximum amount of firewood, one would lie flat on a bed and rest when one wasn’t chopping. But the mind cannot rest. Even in sleep you dream, even if you forget your dreams. The mind is always turning. It gets its relaxation only by variety. That is what makes the mind rest.
When you’ve finished your optimum number of hours you must stop. You must not then sit around in the chair thinking about the work – that only tires without any learning. You must get out and do something. It doesn’t matter what – anything so long as you are actively doing something else but work.
小題1:According to the passage, _______.
A.the longer you study every day, the more you will learn
B.you’ll achieve better learning results if you work three hours every day
C.the less work you do, the better you will learn
D.your work efficiency will decrease once you exceed a certain point of work
小題2:Fatigue can result in ________.
A.loss of memoryB.a(chǎn) need for relaxation
C.a(chǎn) lot of anxietyD.loss of concentration
小題3:The passage tells us that a person’s optimum number of working hours _______.
A.follows a regular pattern with each individual
B.changes regularly from week to week
C.can be partly determined by the sort of work he is doing
D.should be determined before he gets too tired
小題4:The only way the mind can relax is by ________.
A.doing a variety of things in turn
B.not thinking about anything
C.turning continuously
D.getting oneself in a state of fatigue
小題5:After you have reached the optimum point of study in a day, you should ________.
A.lie in bed and rest
B.do something else actively
C.do some physical labor
D.stop thinking about your studies

查看答案和解析>>

科目:高中英語 來源:不詳 題型:閱讀理解

We each have a unique genetic (基因的,遺傳的) make-up. Every cell of your body has the same set of about 100,000 separate genes made of DNA. These are the instructions for producing a person. Genes decide everything from the colour of your skin to the way your brain works. You have one of several billion combinations of DNA which come from the random mixing of your parents’ genes. Except for identical twins (同卵雙胞胎), no one has the same combination as another person. You are unique! You are unique in another way too: in the way you are raised and all the experiences you have from before birth to adult life. These experiences influence you, your behaviour and attitudes, and the choices you make.
But are genes or life experiences more important in shaping your appearance and personality? Scientists are studying twins to find out. One set of twins occurs every 70 births---some are identical and others are non-identical twins. Identical twins are special because they share exactly the same genes and often the same environment. Non-identical twins are more like ordinary brothers and sisters.
Some identical twins have been adopted and brought up in different homes. With identical genes but a different home environment, scientists can study twins to see how much a particular feature depends on the genes we inherit. For example, we know that eye problems, like short-sightedness, are mostly genetic. But resistance to pain is largely dependent on experiences. Genes also influence our eating habits. Identical twins brought up apart often like to eat at the same time of day and feel full after eating the same amount. Non-identical twins in similar circumstances have more varied eating habits. Identical twins are also more likely to follow the same patterns for marriage and divorce than non-identical twins.
Scientists are trying to identify the different genes that influence our behaviour. Some people are thrill-seekers and get into risk-taking and adventurous activities. They take up extreme sports like bungee jumping and possibly take drugs. Scientists have discovered a gene which affects this.
We could ask, “Are our lives determined by our genes or our upbringing?” Scientists are learning more all the time, but it is certainly true that both are important in making us who we are.
小題1:What is the main idea of the first paragraph?
A.We cannot easily change our physical appearance.
B.How we turn out depends on our parents’ genes.
C.Everyone has a physical double somewhere in the world.
D.Both our genes and our experiences make us who we are.
小題2:Why are scientists studying twins?
A.To find out how many twins are born every year.
B.To discover what shapes us as individuals.
C.To compare differences between twins.
D.To study brother-and-sister relationships.
小題3:According to the passage, __________.
A.one in 70 twins are genetically identical
B.non-identical twins are usually not of the same sex
C.twins separated at birth behave exactly the same
D.identical twins are genetically the same
小題4:Which of the following is most affected by experience according the passage?
A.Eating habits. B.Eye-sight. C.Pain resistance. D.Marriage patterns.
小題5:What does the underlined “this” in Paragraph 4 refer to?
A.Our love of sport.B.Our attitude to risk-taking.
C.Our skill at bungee jumping.D.Our ability to take drugs.

查看答案和解析>>

同步練習冊答案