Researchers have announced the result of two studies on the health effects of the drug aspirin(阿斯匹林). One study shows aspirin can sharply reduce the chance that a healthy, older man will suffer from a heart attack.

     The study offered two new results from earlier findings. It said taking one aspirin pill every other day helped only healthy men over the age of fifty. It also said aspirin gave the greatest protection against heart attacks to men with low blood cholesterol(胆固醇) levels.

     Earlier in the United States began a major aspirin study in the early 1980s. it included 22,000 healthy men doctors. All were between the ages of forty and eighty-four. More than 11,000 of the doctors took a harmless pill that contained no drug. The men did not know which kind of pill they were taking.

 

 

    The doctors who took aspirin suffered 44% fewer heart attacks than those taking the harmless pill. 139 men who took aspirin suffered from heart attacks. Ten of them died. 239 men who didn’t take aspirin suffered from heart attacks. Twenty-six of them died.

The researchers said the doctors’ study provides clear proof that taking aspirin can prevent a first heart attack in healthy, older men. They said ,however, the result does not mean every man over the age of fifty should take aspirin. They said aspirin couldn’t help men who do not eat healthy foods, who smoke cigarettes and who are fat. The researchers said men who think they would be helped by taking aspirin should talk with their doctors first.

1. The passage tells us that the new use of aspirin is___________.

A.to treat heart disease.

B.to reduce pain while one suffers from a heart attack.

C.to help old people to be more healthy.

D.to reduce the chance of a heart attack in old men.

2.Aspirin can help those who___________.

    A. work as doctors                  B. are under 40 years old      

C. are fat and smoke cigarettes     D. are older and healthy

3.From the experiment we can conclude that about _________ of people who suffered from heart attacks without aspirin died.

    A.7%                        B. 11%

    C. 19%                      D. 44%

 

 

When an animal helps another animal, it usually gets something valuable in return. For a long time, many scientists thought that only people could act generously just because it feels good.
However, a new study in Germany suggests that chimpanzees (黑猩猩)also do good things for no real reason. And so do children who are as young as 18 months of age. Maybe it is because humans and chimpanzees share an ancestor(祖先) about 6 million years ago.
People and chimpanzees appear to develop such features(特征) without any other training, says Warneken, a scientist in Germany. Warneken and his partners worked on adult chimpanzees that live on an island in the African country of Uganda. They also worked with 18-month-old children in Germany. The researchers performed three experiments on the adult chimpanzees and two experiments on the kids. In the first animal experiment，a person tried to reach his arm into a cage to get a stick，but he couldn’t reach it. A chimpanzee was in the cage，and it could reach the stick if it wanted to.
Thirty-six chimpanzees took part in this experiment one by one, and no chimpanzee saw what the other chimpanzees had done. Even though the animals hadn’t met the person before, they usually took the stick and gave it to the person. What’s more, they did this whether or not the person offered them bananas as a reward. In a similar experiment, 36 children acted in a similar way. They helped the person reach the stick, whether or not they were offered toys for their help.
Researchers did other experiments on chimpanzees and babies. No rewards were offered in either experiment. And still, both the chimpanzees and children went out of their way to help. Still, the new study is different from earlier findings. Researchers have found that chimpanzees don’t give rewards of food to other chimpanzees, even if it costs them nothing to be generous.
【小题1】Warneken and his partners worked with ________.

A．young chimpanzee that live on an island

B．18-month-old children who live in Germany

C．kids who are living with adult chimpanzees

D．adult chimpanzees that live on the African mountain

【小题2】A new study in Germany suggests that ________.

A．people also share information for good reason

B．children know something at the age of 18 months

C．chimpanzees do good things for no real reason, too

D．humans should develop their abilities 6 million years ago

【小题3】 Which of the following is NOT true according to the passage？

A．Thirty-six chimpanzees joined in this experiment one by one

B．No chimpanzee saw what the other chimpanzees had done

C．The animals hadn’t met the person before the experiments

D．Chimpanzee gave the person the stick in order to get a reward

【小题4】From the passage we know that ________.

A．both chimpanzees and children can find their way to help others

B．chimpanzees will reward good food to other chimpanzees

C．children is more generous than chimpanzees in some ways

D．both chimpanzees and children can do the difficult experiments

阅读短文，从所给的选项中选择四个句子完成短文，使其文理通顺。（有一项多余）

Imagine a normal day: you go to work, return home, and maybe buy somethings on your way home.1.. For a large number of people, the answer to that question is zero.

Ever since the Industrial Revolution（工业革命）began, many changes have taken place in our world.2..

Want to buy a pair of shoes? An MP3 player? A book? It’s only a few clicks(点击) away. Need a computer? A gift? A tennis racket? Click. No need to even leave your house.3.And the quality of crops that are grown and harvested(收割) by computers is getting better.

You are probably booking (预定) your hotel room online. When can we choose our own rooms and get our keys by ourselves? We also hope that everything we want to buy at the supermarket will be ready for us when we arrive.4.Researchers have already designed a robot to correctly find your preferred beer and bring it to you.

Will human jobs be completely done by robots? We don’t know. But computers are doing more and more jobs for humans.

5.How many examples of ways of doing things does the author pick up to show the advantages of computers?

A. Five.  B. Four.  C. Six.  D. Three.

A. On the farm, machines are used, and more and more farm jobs can be done by machines.

B. In a factory, workers are busy making products.

C. Many jobs done by humans in the past are now being done by technology(技术) instead.

D. How many people do you have to talk with to do those everyday tasks?

E. In fact, a restaurant in China recently started using some robots to serve people.

 

 

Dreams are expressions of thoughts, feelings and events that pass through our mind while we are sleeping. Everybody dreams. But only some people remember their dreams. Our dreams often include all the senses—smells, sounds, sights, tastes and things we touch. We dream in colour. Sometimes we dream the same dream over and over again. These repeated dreams are often unpleasant. They may even be nightmares—bad dreams that frighten us.

Early in the twentieth century, two famous scientists developed their personal ideas about dreams. Austrian psychiatrist Sigmund Freud published a book called “The Interpretation(诠释) of Dreams” in 1900. Freud believed people often dream about things they want but can’t have. These dreams often have something to do with sex and aggression(侵犯). Swiss psychiatrist Carl Jung worked closely with Freud for several years, but he believed dreams could help people grow and understand themselves. He believed dreams provide solutions(解答) to problems we face when we are awake. He didn’t believe dreams hide our feelings about sex or aggression. Today we know more about the science of dreaming because researchers can take pictures of people’s brains while they are sleeping.

Other researchers are studying how dreaming helps our bodies work with problems and very sad emotions(感情). Robert Stickgold is a professor of psychiatry at Harvard University in Massachusetts. Doctor Stickgold says that when we dream, the brain is trying to make sense of the world. He does not agree with Sigmund Freud that dreaming is the way we express our hidden feelings and desires(愿望).

Scientists believe it is important to keep researching dreams. Doctor Stickgold says it has been more than one hundred years since Sigmund Freud published his important book about dreaming. Yet there is still no agreement on exactly how the brain works when we are dreaming or why we dream.

请根据短文内容，选择最佳答案, 将其标号在答题卡上涂黑。（每小题2分，共10分）

1. Dreams _________.   

A. are remembered by everyone

B. express all that we think in our mind

C. include few senses and things we touch

D. are sometimes nightmares that repeat and frighten us

2. A book on dreaming was published by _________.

A. Sigmund Freud        B. Robert Stickgold      C. Carl Jung   D. the writer

3. In the passage, all the psychiatrists _________.

A. believe dreams can help people understand all the problems that they face

B. think dreams always hide someone’s feelings about sex or aggression

C. study dream and dreaming and have their own ideas

D. have the same idea that people often dream about the things they want

4. From the passage, we know that _________.

A. Jung thought that dreams provide solutions to problems we face when we are sleeping

B. Freud developed the idea that dreams are expressions of people’s hidden feelings

C. scientists have known quite well why we dream because they can take pictures of our brains

D. other researchers have discovered how dreaming helps our bodies work with problems and very sad emotions

5.Which would be the best title(标题) for the passage?

A. The Explanations of Dreams         B. The Ways of Dreams

C. The Solutions to Dreams            D. The Mystery(奥秘) of Dreams and Dreaming

 

 

Do you know that women’s brains are smaller than men’s? Normally the women’s brain weighs 10% less than men’s. Since research has shown that the bigger the brain, the cleverer the animal, men must be more intelligent（聪明的） than women. Right? Wrong. Men and women always score similarly on intelligence tests, despite the difference in brain size. Why? After years of study, researchers have concluded that it’s what’s inside that matters, not just the size of the brain. The brain is made up of “grey matter” and “white matter”. While men have more of the white matter, the amount（数量）of “thinking” brain is almost the same in both men and women.
It has been suggested that smaller brain appears to work faster, perhaps because the two sides of the brain are better connected in women. This means that little girls may learn to speak earlier, and that women can understand sorts of different information at the same time. When it comes to talking to the boss on the phone, cooking dinner and keeping an eye on the baby all at the same time, it’s women who come out on top every time.
There are other important differences between two sexes（性别）. As white matter is the key to spatial（空间的）tasks, men know better where things are in relation to other things. “A great footballer always knows where he is in relation to the other players, and he knows where to go,” says one researcher. That may explain one of life’s great mysteries: why men refuse to ask for directions … and women often need to!
The differences begin when fetuses（胎儿）are about nine weeks old, which can be seen in the action of children when they are very young. A boy would try to climb a barrier before him or push it down while a girl would ask for help from others. These brain differences also explain the fact that more men take up jobs that require good spatial skills, while more women speech skills. It may all go back to our ancestors, among whom women needed speech skills to take care of their babies and men needed spatial skills to hunt, according to one research.
【小题1】Which of the following is TRUE according to Paragraph 1?

A．Grey matter controls thinking in the brain.

B．Men’s brain is 10% less than women’s.

C．Grey matter plays the same role as white matter.

D．Men and women have the same amount of white matter.

【小题2】What can you infer from Paragraphs 2 and 3?

A．Men have weaker spatial abilities.

B．Women do not need to tell directions.

C．Women prefer doing many things at a time.

D．Women do many jobs at a time better than men.

【小题3】What can you learn from Paragraph 4?

A．Our children needed more spatial skills.

B．Women may have more feelings than men.

C．Young boys may be stronger than young girls.

D．More women take up jobs requiring speech skills.

【小题4】 The passage is mainly about _______.

A．ways of being more intelligent

B．differences between men and women

C．studies on brains between two sexes

D．studies on white matter and grey matter