A little stress is good, since it helps you keep motivated to meet your goals. However, too much stress is bad for your health. Stress needs to be managed in order to prevent anxiety . Here are some t 题目和参考答案——青夏教育精英家教网—

Ever tried taking smart drugs to perform better in exams? They certainly work. Before last summer's exam, a few of my mates, merely out of curiosity, took a considerable amount of Modafinil, a drug normally used for narcolepsy(嗜眠发作症). Guess what? While I was feeling sleepy, bored by revision, my mates were more focused.
Modafinil is a smart drug that gives a user a feeling of staying awake for hours. It also sharpens the mind, improves memory and helps problem-solving.
But it does more than just keeping you awake. It disturbs your mental system, making you desperate to do what you are doing. You just don't want to do anything else but revise all the time non-stop.
A recent study discovers that healthy people use smart drugs, like Modafinil, to get down to and complete tasks they have been putting off, because these tasks seem more enjoyable when taking these drugs. This might sound like what a stressed student desires. However, the pills have a range of side-effects.
"At present no evidence shows that these drugs are safe in healthy people," as a medical expert puts it, "Ordering online, though easy, is a dangerous way to obtain drugs. You never know what you're actually purchasing. "
In my experience, Modafinil changes people's behaviour too. Over those weeks my friends became different people—in turn aggressive, cold. Even eating became "a waste of time" and so did conversation.
A BBC survey found that of those who had tried smart drugs before, 92% would do so again. My friends say they'd happily do so without considering the practice a form of cheating.
I admit I was curious—but not enough to try it. Seeing the strange behaviour of other users, I feel a little bit upset and scary. Modafinil may promise to change your grades, but it might also change the way you act. Don't say you haven't been warned!
小题1:According to the author, his mates took Modafinil for the purpose of______.

A．escaping from reality	B．getting better exam results
C．curing their narcolepsy	D．leading an active life

小题2:Taking the smart drug can lead to ______.

A．cheating in the exam	B．dropping out of school
C．youth crime(犯罪)	D．drug addiction(上瘾)

小题3:What does the author think of his mates' taking the smart drugs?

A．Worrying.	B．Inspiring.
C．Acceptable.	D．Reasonable.

小题4:Which statement about Modafinil is wrong?

A．Modafinil sharpens the mind and helps problem-solving.

B．Modafinil more than just keeps you awake.

C．Modafinil has a range of side effects.

D．Modafinil is safe in healthy people.

小题5:Who are the target readers of this passage?

The Centers for Disease Control and Prevention (CDC) recently announced trends in fruit and vegetable consumption(食用) among adults. Since 2000, the CDC has made efforts with goals of getting 75% of Americans to eat two or more servings of fruit a day and 50% of Americans to eat three or more servings of vegetables a day. Unfortunately, Americans aren’t meeting these modest targets.
Although a diet high in fruit and vegetables can reduce the risk of many diseases, Americans just aren’t getting enough. In fact, since 2000, the amount of vegetables Americans are eating has stayed the same and the amount of fruit Americans are eating has gone down. The CDC also finds that only about a third of adults are eating their expected servings of fruit, and just over a quarter of adults are eating their expected servings of vegetables.
So why aren’t Americans getting their expected servings of fruit and vegetables? It turns out that Americans might be spoiled when it comes to their produce. A national survey conducted by Fruit2day reveals that nearly half of Americans leave fruit in their fridges until it rots with people in Boston among the worst and those in New York and Los Angeles among the best. Sadly, most Americans admit to leaving fruit in the fridge for more than a week.
There are many reasons why Americans don’t eat their fruit or vegetables, including the inconvenience of having to wash or peel it. Fruit2day offers consumers a surprising and convenient way to enjoy the goodness of fruit.
“With no added sugar, natural juices and two full servings of fruit, our Fruit2day line has really captured the imaginations of health-conscious consumers who are actively looking to get more fruit in their diets,” said Hanno Holm, president and chief executive officer of Hero-White Wave. “Fruit2day makes getting more fruit in one’s diet easier for any daily snack routine.”
小题1:For 4 million American adults, how many of them are eating two or more servings of fruit a day?

小题2:We can learn from the first two paragraphs that __________ .

A．Americans have been eating fewer vegetables since 2000.

B．most Americans eat less fruit to reduce the risk of diseases.

C．most Americans prefer fruit to vegetables.

D．over 25% of adults are eating three or more daily servings of vegetables.

小题3:In which city are people most likely to leave fruit in their fridge?

小题4:With the help of Fruit2day, Americans can __________ .

A．easily get rid of their bad eating habits

B．conveniently have more fruit in their diets

C．add sugar and natural juices to their diets

D．find another excuse for not eating healthily

小题5:Americans don’t eat their fruit or vegetables because __________ .

A．they are relatively forgetful

B．they are too busy with their work

C．they don’t think it convenient to eat them

D．they prefer daily snacks with added sugar

Some students get so nervous before a test, they do poorly even if they know the material. Sian Beilock has studied these highly anxious test-takers.
Sian Beilock: “They start worrying about the consequences. They might even start worrying about whether this exam is going to prevent them from getting into the college they want. And when we worry, it actually uses up attention and memory resources.I talk about it as your cognitive horsepower that you could otherwise be using to focus on the exam.”
Professor Beilock and another researcher, Gerardo Ramirez, have developed a possible solution. Just before an exam, highly anxious test-takers spend ten minutes writing about their worries about the test.
Sian Beilock: “what we think happens is when students put it down on paper , they think about the worst that could happen and they reappraise the situation. They might realize it’s not as had as they might think it was before and, in essence(本质上), it prevents these thoughts from popping up when they’re actually taking a test.”
The researchers tested the idea on a group of twenty anxious college students. They gave them two short math tests. After the first one, they asked the students to either sit quietly or write about their feelings about the upcoming second test.
The researchers added to the pressure. They told the students that those who did well on the second test would get money. They also told them that their performance would affect other students as part of a team effort.
Professor Beilock says those who sat quietly scored an average of twelve percent worse on the second test. But the students who had written about their fears improved their performance by an average of five percent.
Next, the researchers used younger students in a biology class. They told them before final exams either to write about their feelings or to think about things unrelated to the test.
Prefessor Beilock says highly anxious students who did the writing got an average grade of B+, compared to a B- for those who did not.
Sian Beilock: “What we showed is that for students who are highly test-anxious, who’d done our writing intervention, all of a sudden there was no relationship between test anxiety and performance. Those students most likely to worry were performing just as well as their classmates who don’t normally get nervous in these testing situations.”
But what if students do not have a chance to write about their fears immediately before an exam or presentation? Professor Beilock says students can try it themselves at home or in the library and still improve their performance.
小题1:What may happen if students have the problem of test anxiety?

A．Test anxiety can improve students’ performance to some degree.

B．Students’ attention and memory resources run out when worried.

C．Students may not be admitted into their favorite college if worried

D．Test anxiety is sure to cause students to fail the test.

小题2:Which of the following if TRUE?

A．In the first math test, students who sat quietly performed better.

B．In the second math test, students who wrote about their feelings did worse.

C．Some college students are highly anxious test-takers while others are not in the tests.

D．The result in the math test agrees with that in the biology test.

小题3:What does the underlined phrase “popping up” mean?

小题4:what is most probably Sian Beilock?

A．A psychology professor.	B．A philosophy researcher.
C．A politics professor	D．A tutor

小题5:What is the main idea of the passage?

A．It is a common practice for students being worried before a test.

B．Being worried before tests does harm to students’ performance.

C．Anxious students overcome test anxiety by writing down fears.

D．It is important for students to overcome test anxiety.

There are times when people are so tired that they fall asleep almost anywhere. We can see a lot of people sleeping on the bus or train on their way home __小题1:__ work in the evening. A man will be reading the newspaper, and seconds later it appears as if he is trying to eat it. Or he will fall asleep on the shoulder of the stranger sitting next to him. Another place where __小题2:__ (plan) short sleep goes on is in the lecture hall __小题3:__ a student will start snoring so loudly that the professor has to ask __小题4:__ student to shake the sleeper awake. A more _小题5:__ (embarrass) situation occurs when a student starts falling into sleep and __小题6:__ weight of the head pushes the arm off the desk, and the movement carries the rest of the body along. The student wakes up on the floor with no memory of getting there. The __小题7:_ (bad) time to fall asleep is when driving. Police reports are full of accidents that occur when people fall into sleep and go off the road. __小题8:__ the drivers are lucky, they are not seriously hurt. One woman’s car, for example, went into the river. She woke up in four feet of water and thought that it __小题9:__ (rain). When people are really tired, __小题10:__ will stop them from falling asleep — no matter where they are.

阅读下列短文，从每题所给的A、B、C和D项中，选出最佳选项。
A
“I sometimes get up at three or four in the morning and I surf the net.”
“I often check my e-mail forty times a day.”
“I often spend more than three hours during one time on the net.”
“I spend more time in chat rooms(聊天室) than with my ‘real-1ife’ friends.”
Do you know any people like these? They are part of a new addiction(瘾) called Internet addiction. Internet addicts spend at least thirty to forty hours online every week. The use of the Internet can be an addiction like drug(毒品) use. People lose control(控制)of the time they spend on the Internet
For example, one college student was missing for several days. His friends were worried, and they called the police. The police found the student in the computer lab: he was surfing the net for several days straight.
Studies show that about 6 to 10% of Internet users become addicted. And people worry about the teens because the Internet is changing the playing field for some of them.They spend more time in cyberspace than in the real world of friends and family.
Is “surfing the net” a hobby or an addiction for you? You may have a problem if
you have these symptoms(症状):
●You do not go to important family activities or you do not do school work because you like to spend hours on the Internet.
●You can’t wait for your next online time.
●You plan to spend a short time online, but then you spend several hours.
●You go out with your friends less and less.
◆根据以上短文内容，然后从每题所给的四个选项中选择最佳选项。
小题1:What does the beginning of the passage tell us?

A．How to become an Internet addict.

B．What an Internet addict usually does.

C．Where to find an Internet addict.

D．Why to write this passage.

小题2:How does the writer describe the addicts’ use of Internet?

A．It is something like keeping drugs.

B．It is a way of producing drugs.

C．It is like taking drugs.

D．It is terrible to imagine.

小题3:Why do people worry about the teens?

A．The teens are wasting too much money.

B．They used to work on the Internet.

C．The playing field of the teens will disappear.

D．More and more of the teens wil1 become addicted to the Internet.

小题4:The example in the passage shows that _______.

A．Internet problems are more serious among college students

B．Internet addicts usually stay in the computer lab without sleep

C．Some of the Internet users have already been seriously addicted

D．The police often help to find those Internet addicts.

小题5:What is the writer trying to tell us at the end of the passage?

A．Don’t be addicted to the Internet.

B．Go to family activities more often.

C．Do things as you have planned

D．Stay with your parents as often as possible.

When did you last see a polar bear(北极熊)? On a trip to a zoo, perhaps? If you had attended a winter activity in New York a few years ago, you would have seen a whole polar bear club. These "Polar Bears" are people who meet frequently in the winter to swim in freezing cold water. That day, the air temperature was 3℃,and the water temperature was a little higher. The members of the Polar Bear Club at Coney Island, New York are usually about the age of 60. Members must satisfy two requirements. First, they must get along well with everyone else in the group; this is very important because there are so many different kinds of people in the club. Polar Bears must also agree to swim outdoors at least twice a month from November through February.
Doctors don't agree about the medical effects of cold-winter swimming. Some are worried about the dangers of a condition in which the body's temperature drops so low that finally the heart stops. Other doctors, however, point out that there is more danger of a heart attack during summer swimming because the difference between the air temperature and water temperature is much greater in summer than in winter.
The Polar Bears themselves are satisfied with the benefits of cold-water swimming. They say that their favorite form of exercise is very good for the circulatory system(循环系统) because it forces the blood to move fast to keep the body warm. Cold-water swimmers usually turn bright red after a few minutes in the water. A person who turns blue probably has a very poor circulatory system and should not try cold-water swimming.
The main benefits of cold-water swimming are probably mental. The Polar Bears love to swim all year round; they find it fun and relaxing. As one 70-year-old woman says, "When I go into water, I pour my troubles into the ocean and let them float away."
小题1:The members of the Polar Bear Club must meet the following requirements except that____.

A．they must swim outdoors at least 8 times in the four cold months

B．they must reach the age of 60

C．they should be easy to make friends with

D．they must agree to swim outdoors from November through February

小题2:According to the passage, some doctors believe it is true that_____.

A．polar Bears are bears swimming in freezing water

B．cold-water swimming can make the body temperature dangerously high

C．you are healthy if cold-water swimming turns your skin color blue

D．cold-water swimming causes more heart attacks in summer than in winter

小题3:The Polar Bears like to swim year-round, for_____.

A．it is an easy way to keep the body warm in winter

B．they can remain young

C．they find it enjoyable and interesting

D．they might meet fewer troubles in life

小题4:The passage is mainly about_____.

A．the requirements of the Polar Bear Club

B．a group of cold-water-swimming lovers

C．the Polar Bears' life in New York

D．doctors' ideas about cold-water swimming

Mark Ramirez, a senior executive at AOL, could work in the comfortable leather chair, if he wanted. No, thanks. He prefers to stand most of the day at a desk raised above stomach level.
“I’ve got my knees bent. I feel totally alive,” he said. “It feels more natural to stand.”
In the past few years, standing has become the new sitting for 10 percent of AOL employees at the firm’s Virginia branch. Part of a standing popularity is among accountants, programmers, telemarketers and other office workers across the nation.
GeekDesk, a California firm that sells desks raised by electric motors, says sales will triple this year.
Standers give various reasons for taking to their feet: It makes them feel more focused, prevents drowsiness(困倦睡意), and makes them feel like a general even if they just push paper. (Former Defense Secretary Donald Rumsfels works standing up. So does novelist Philip Roth.)
But unknown to them, a debate (辩论) is spreading among ergonomics experts（人类工程学家） and public-health researchers about whether all office workers should be encouraged to stand—to save lives.
Doctors point to surprising new research showing higher rates of diabetes, obesity, heart disease and even mortality among people who sit for long stretches. A study earlier this year in the American Journal of Epidemiology showed that among 123,000 adults followed over 14 years, those who sat more than six hours a day were at least 18 percent more likely to die during the time period studied than those who sat less than three hours a day.
“Every rock we turn over when it comes to sitting is astonishing,” said Marc Hamilton, a leading researcher on inactivity physiology at the Pennington Biomedical Research Center in Louisiana. “Sitting is harmful. It’s dangerous. We are on the cusp (尖端) of a major revolution.” He calls sitting “the new smoking”.
Not so fast, other experts say. Standing too much at work will cause more long-term back injuries. Incidences of varicose veins(静脉曲张) among women will increase. The heart will have to pump more.
Hedge, the Cornell professor, isn’t a fan of all this standing. “Making people stand all day is dumb,” he said.
The sensible and most cost-effective strategy（策略）, he said, is to sit in a neutral posture（姿势）, slightly reclined(下弯的), with the keyboard on a tray above the lap. This position promotes positive blood flow. Workers should occasionally walk around, stretch and avoid prolonged periods at the desk. The key, he said, is movement, not standing.
小题1:Marc Hamilton said “Every rock we turn over when it comes to sitting is astonishing” to show that________.

A．the result of the study about sitting too long is shocking

B．we need to remove many rocks

C．we need to smooth away many difficulties

D．sitting on a rock is necessary

小题2: The following are the reasons why some experts are against standing too long except .

A．It will cause more long-term back injuries

B．it will raise the burden of heart

C．incidences of varicose veins among women will increase

D．standing too much at work per day is too tiring

小题3: According to the studies in the passage mentioned, .

A．it is better not to stand more than 6 hours

B．sitting too long can arouse illnesses easily

C．sitting long is specially harmful to adults

D．standing much is better than sitting long

小题4:Which of the following is the best title of the passage?

A．Standing is not better than sitting

B．Standing more does no harm to people

C．Standing will promote the efficiency

D．More office workers take standing against sitting

Researchers at Massachusetts General Hospital for Children (MGHfC) have invented a new term that describes dangers associated with cigarette smoke: third-hand smoke. Study results published in January, 2009 discuss how third-hand smoke is especially dangerous for children.
Have you ever walked into a room that had the smell of cigarette smoke, regardless of the fact that a fan was moving the air and no one was smoking at the time? This is what researchers are calling third-hand smoke — and it represents the poisonous deposits (存积物) that are left behind long after a cigarette is put out.
Cigarette smoke contains gases and small particles that are deposited on every surface it comes in contact with, for example, the smoker’s hair and clothing, or the environment the cigarette was smoked in. It’s dangerous for young children who may crawl on polluted surfaces. Third-hand smoke is a serious health risk for our kids, especially those who live in the homes of smokers.
Jonathan Winickoff, lead author of the study, explains, “When you come into contact with your baby, even if you’re not smoking at the time, he or she comes in contact with those poisons. And if you breast-feed, the poisons will transfer to your baby in your breast milk.” Winickoff adds however, that nursing a baby if you’re a smoker is still a better choice than bottle-feeding.
Researchers involved in the study also surveyed more than 1,500 families in an effort to learn about adult attitudes regarding the danger third-hand smoke represents to their children and how that might affect smoking in the home.
Approximately 95 percent of nonsmokers and 84 percent of smokers believe that secondhand smoke is dangerous for children.
On the issue of whether third-hand smoke threatens the health of children, 65 percent of nonsmokers and 43 percent of smokers felt that third-hand smoke harms kids. When asked about rules regarding smoking in the home, approximately 88 percent of nonsmokers said they don’t allow smoking, while only 27 percent of smokers forbid smoking in the home.
However, both non-smokers and smokers who felt that third-hand smoking was harmful to children’s health were more inclined to (倾向于) restrict smoking in their homes.
小题1:The study led by Jonathan Winickoff focused on _______.

A．bad influences long after a cigarette is smoked

B．third-hand smoke and secondhand smoke

C．the bad effects of smoking on common people

D．the terrible smell of cigarette smoke

小题2:How does the text explain what third-hand smoke is?

A．By telling results of a survey.

B．By giving statistics.

C．By making comparisons.

D．By giving an example.

小题3:The following measures to prevent the effect of third-hand smoke are effective except _______.

A．keeping kids out of room when you smoke

B．cleaning the house to get rid of poisons

C．making yourself clean before contacting kids

D．trying to forbid smoking in home

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