题干

   Is sleep important to children?A new study says yes.

A new study published this week shows that children who do not get _____ sleep have less control over emotions and are less focused at school.

The National Sleep Foundation _____ 10 to 11 hours of shut-eye per night for children aged between 5 and 12. About 41 million American workers get less than six hours of sleep per night. Now health experts _____ that adults are passing their poor sleeping _____ down to their children.

Reut Gruber is a lead author of the new study. In the study,Gruber and other experts either added or reduced one hour of sleep for _____ children aged 7 to 11. They _____ the children over five nights. The _____ was to see if small changes in the amount of sleep could _____a child's behavior.

“The findings show that for children small changes can make a big _____,and that is why this is meaningful.”

Before the survey began, students were _______to sleep the same amount of hours as they ______ would. Their teachers were asked to ______ the children on thoughtfulness, touchiness and emotional reactions. After five nights of the kids' sleep change, the teachers were asked to take the survey again. ______ their original scores, those who slept one hour less had ______ behavior scores than those who were allowed to sleep an hour more.  Students with less sleep were more annoyed, frustrated and had more problems which need paying ______ to.  The children with more sleep showed ______ in these areas.

“______ less sleep leads to a drop in attention in class, children may ______ on learning and chances to be ______. If they are easily annoyed and frustrated because their bodies and brains are ______, they may not learn as much either,”says Gruber.

【小题1】
A.usefulB.enoughC.preciousD.deep
【小题2】
A.recommendsB.measuresC.calculatesD.guarantees
【小题3】
A.declareB.worryC.reportD.promise
【小题4】
A.routineB.qualitiesC.habitsD.beliefs
【小题5】
A.healthyB.strongC.energeticD.reliable
【小题6】
A.followedB.educatedC.observedD.accompanied
【小题7】
A.processB.reasonC.resultD.goal
【小题8】
A.enhanceB.affectC.controlD.damage
【小题9】
A.decisionB.differenceC.choiceD.impression
【小题10】
A.beggedB.toleratedC.askedD.opposed
【小题11】
A.occasionallyB.frequentlyC.normallyD.exactly
【小题12】
A.praiseB.divideC.scoreD.adjust
【小题13】
A.Based onB.Compared withC.Related toD.Involved in
【小题14】
A.worseB.strangerC.betterD.ruder
【小题15】
A.moneyB.noticeC.effortD.attention
【小题16】
A.interestB.patienceC.improvementD.potential
【小题17】
A.AlthoughB.IfC.UnlessD.As
【小题18】
A.miss outB.cut offC.carry outD.give off
【小题19】
A.activeB.delightedC.creativeD.trustworthy
【小题20】
A.complicatedB.trainedC.tiredD.tested
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同类题1

   For some people,music is no fun at all. About four percent of the population is what scientists call “amusic.” People who are amusic are born without the ability to recognize or reproduce musical notes(音调). Amusic people often cannot tell the difference between two songs. Amusics can only hear the difference between two notes if they are very far apart on the musical scale.

As a result, songs sound like noise to an amusic. Many amusics compare the sound of music to pieces of metal hitting each other. Life can be hard for amusics. Their inability to enjoy music sets them apart from others. It can be difficult for other people to identify with their condition. In fact, most people cannot begin to grasp what it feels like to be amusic. Just going to a restaurant or a shopping mall can be uncomfortable or even painful. That is why many amusics intentionally stay away from places where there is music. However, this can result in withdrawal and social isolation. “I used to hate parties,” says Margaret,a seventy-year-old woman who only recently discovered that she was amusic. By studying people like Margaret, scientists are finally learning how to identify this unusual condition.

Scientists say that the brains of amusics are different from the brains of people who can appreciate music. The difference is complex, and it doesn't involve defective hearing. Amusics can understand other nonmusical sounds well. They also have no problems understanding ordinary speech. Scientists compare amusics to people who just can't see. certain colors.

Many amusics are happy when their condition is finally diagnosed(诊断). For years, Margaret felt embarrassed about her problem with music. Now she knows that she is not alone. There is a name for her condition. That makes it easier for her to explain. “When people invite me to a concert, I just say,” No thanks, I'm amusic,'“says Margaret. “I just wish I had learned to say that when I was seventeen and not seventy.”

【小题1】Which of the following is true of amusic?
A.Listening to music is far from enjoyable for them.
B.They love places where they are likely to hear music.
C.They can easily tell two different songs apart.
D.Their situation is well understood by musicians.
【小题2】According to Paragraph 3, a person with “defective hearing” is probably one who ___________.
A.dislikes listening to speeches
B.can hear anything nonmusical
C.has a hearing problem
D.lacks a complex hearing system
【小题3】In the last paragraph, Margaret expressed her wish that __________.
A.her problem with music had been diagnosed earlier
B.she were seventeen years old rather than seventy
C.her problem could be easily explained
D.she were able to meet other amusics
【小题4】What is the passage mainly concerned with?
A.Amusics' strange behaviours.
B.Some people's inability to enjoy music.
C.Musical talent and brain structure.
D.Identification and treatment of amusics.

同类题2

   In the United States alone,over 100 million cell-phones are thrown away each year.Cell-phones are part of a growing mountain of electronic waste like computers and personal digital assistants.The electronic waste stream is increasing three times taster than traditional garbage as a whole.

Electronic devices contain valuable metals such as gold and silver.A Swiss study reported that while the weight of electronic goods represented by precious metals was relatively small in comparison to total waste,the concentration(含量)of gold and other precious metals was higher in So-called e-waste than in naturally occurring minerals.

Electronic wastes also contain many poisonous metals.Even when the machines are recycled and the harmful metals removed,the recycling process often is carried out in poor countries,in practically uncontrolled ways which allow many poisonous substances to escape into the environment.

Creating products out of raw materials creates much more waste material,up to 100 times more,than the material contained in the finished products.Consider again the cell-phone,and imagine the mines that produced those metals,the factories needed to make the box and packaging(包装)it came in.Many wastes produced in the producing process are harmful as well.

The U.S Environmental Protection Agency notes that most waste is dangerous in that"the production, distribution,and use of products-as well as management of the resulting waste-all result in greenhouse gas release." Individuals can reduce their contribution by creating less waste at the start-for instance,buying reusable products and recycling.

In many countries the concept of extended producer responsibility is being considered or has been put in place as an incentive(动机)for reducing waste.If producers are required to take back packaging they use to sell their products,would they reduce the packaging in the first place?

Governments' incentive to require producers to take responsibility for the packaging they produce is usually based on money.Why,they ask,should cities or towns be responsible for paying to deal with the bubble wrap(气泡垫)that encased your television?

From the governments' point of view,a primary goal of laws requiring extended producer responsibility is to transfer both the costs and the physical responsibility of waste management from the government and tax-payers back to the producers.

【小题1】By mentioning the Swiss study,the author intends to tell us that .
A.the weight of e-goods is rather small
B.natural minerals contain more precious metals
C.E-waste deserves to be made good use of
D.the percentage of precious metals is heavy in e-waste
【小题2】The responsibility of c-waste treatment should be extended .
A.from producers to governments
B.from governments to producers
C.from individuals to distributors
D.from distributors to governments
【小题3】What docs the passage mainly talk about?
A.The increase in e-waste.B.The creation of e-waste.
C.The seriousness of e-waste.D.The management of e-waste.

同类题3

   Storing food is common in members of the crow family. A new study tested the birds outside for this naturally occurring behavior, which may have evolved(进化)specifically because it gives crows a survival advantage. Some crow species are known to naturally use tools to recover food. So the researchers tested whether the birds could store and recover a tool so they could use it to find their food after a gap of 17 hours — something we wouldn’t expect them to do naturally. But they were able to instantly select the tool out of a number of unnecessary items.

In another experiment, the researchers taught crows to select a token(礼品券)from a number of items so that they could then exchange it for food. Again, the birds then showed that they could plan for the future using this new behaviour. This is different from all of the previous studies in future planning, which have focused on naturally occurring behaviour. For example, we know that chimpanzees select, transport and save appropriate tools for future needs.

These studies have shown that animals can plan for the future — but they leave an important question open for debate. Are animals only able to plan to use abilities that have evolved to give them a specific advantage, or can they flexibly and intelligently apply planning behaviour across various actions? Most critics would say the former, as the animals were tested in naturally occurring behaviour.

But the new research provides the first evidence that animal species can plan for the future using behaviour that doesn’t typically occur in nature. This supports the view that at least some recognitive(认知的)abilities in animals don’t evolve just in response to specific problems. Instead, it suggests that animals can apply these behaviour flexibly across problems in a similar way to humans. We need to study how flexible behaviour evolved. Then we might be able to see how crows’ ability to plan for the future fits in with their broader cognitive powers.

【小题1】What’s the new finding about some crows according to Paragraph 1?
A.They can store food.B.They can use tools to recover food.
C.They can store and recover tools.D.They can select and store food.
【小题2】What are crows trained by researchers to do when given a token?
A.Reject it casually.B.Exchange it for food.
C.Save it as their food.D.Build a nest with it.
【小题3】What can we infer about the studies that animals can plan for the future?
A.They are debatable.B.They are disappointing.
C.They are logical.D.They are convincing.
【小题4】What can be learned about flexible behaviour in animals?
A.It develops only with age.B.It is unclear how it evolved.
C.No animals but crows benefit from it.D.It helps plan for the future.

同类题4

   Ask most people anywhere in the world what they want out of life and the reply will probably be“to be happy”. Ed Deiner,an American psychology professor,has spent his whole life studying what makes people happy,comparing levels of happiness between cultures and trying to find out exactly why we enjoy ourselves.

Many people would say that this question does not need an answer. But Professor Deiner has one anyway. “If you’re a cheerful,happy person,your marriage is more likely to last,and you’re more likely to make money and be successful in your job. On average,happy people have stronger immune systems(免疫系统),and there is some evidence that they live longer. ”

So who are the world’s happiest people?It depends on how the word is defined. There is individual(个人的)happiness,the sense of joy we get when we do something we like. But there is also the feeling of satisfaction we get when we know that others respect us and approve of how we behave. According to Professor Deiner,the Western world pursues individual happiness while Asia prefers mutual satisfaction.

“In the West,the individualistic culture means that your mood matters much more than it does in the East. People ask themselves if they are doing what is fun or interesting. They become unhappy when they can’t do any of these things. If you ask people from Japan or China whether they are happy,they tend to look at what has gone wrong in their lives. If not much has gone wrong,then they are satisfied. ”

“People from Spain and other Spanish-speaking countries have the happiest culture,”Professor Deiner found. “The biggest cultural difference is to do with pride and shame. Hispanic cultures report much more pride and much less shame than others. ”

Income(收入)also makes a big difference to people’s happiness,but only at the lowest levels. Average income earners in the US are much happier than people in poverty. But millionaires are only a little bit happier than people on average incomes. It seems that money makes us happy when we have enough to feel safe.

【小题1】According to the passage, happy people enjoy the following except _______.
A.a long marriageB.career success
C.better healthD.respect from others
【小题2】What can be inferred from the fifth paragraph?
A.Hispanic cultures put stress on pride and shame.
B.Spanish people take too much pride in themselves.
C.Opinions towards pride and shame decide Spanish happiness.
D.If you are from Spain,you are the happiest.
【小题3】In the last paragraph,what does the writer want to tell us?
A.Poor people enjoy the same happiness as millionaires.
B.The higher income one gets,the happier life he lives.
C.Enough money can make us feel safe and happy.
D.Average income earners live the happiest life.
【小题4】What does the passage mainly discuss?
A.Cultural differences in happiness.
B.Reasons for happiness.
C.The happiest culture.
D.People’s opinions of happiness.

同类题5

   A start-up company in California, called Zume, is testing machines that make pizza. The robot takes and shapes dough to create the base of the pizza. It then adds tomato sauce, cheese, meat or other toppings. Next, the robot places the uncooked pizza into a hot oven. A few minutes later, the pizza is ready. The pizza comes out the same each time. Zume says the robots work quickly and do not get sick. The robots do not get paid either.

Julia Collins is the company’s founder and chief executive officer (CEO) . Her business can spend money on better food products because it does not have to pay the robots. Zume is using robots to make pizza.

Charity Suzuki has bought the robot-made pizza. She likes its taste. “It’s delicious. It’s always hot and fresh when it comes. I mean it’s great that they’re making it, but I can’t tell the difference that it’s made by a robot versus a human.”

Other companies say they are developing robots so people can get higher quality food faster. But what about the jobs the robots are taking from humans?

Ken Goldberg is a professor at the University of California in Berkeley. He also directs the school’s automation laboratory. Goldberg says researchers have been working with robots for 50 years. He says that, while there has been progress, the jobs are not going to disappear right away. “I want to reassure (使放心) restaurant workers that the skills that they have are still going to be of value,” Goldberg said.

“We’re going to get rid of boring, repetitive, dangerous jobs and we’re going to free up people to do things that have higher value. There’s going to be amazing new ways of working that don’t exist yet but are going to be created.”

【小题1】Why can Zume devote more money to better food products?
A.It earns a lot by selling pizza.B.It wants to create more robots.
C.It can save a lot by using robots.D.It hopes to attract more customers.
【小题2】What can we know about the robot-made pizza according to Suzuki?
A.It really agrees with her.B.It is hot and fresh all the time.
C.It is tastier than the man-made.D.It is delicious and free of charge.
【小题3】What’s the benefit of robots’ making pizza?
A.They work efficiently.B.They help sick people.
C.They need few payments.D.They produce more food.
【小题4】What does Goldberg think of the jobs of restaurant workers?
A.Interesting.B.Boring.
C.Dangerous.D.Necessary.