完形填空(10分)
Water is the "life blood" of our earth.Like air and sunshine, it is very important  1  living things.Without water, there can be   2 life on the earth.All animals and plants need water.Man also needs water.We need water to drink, to cook and to clean   3  .It even   4   the greater part of our bodies.Water is almost everywhere.Even in the  5   places of the world, there is water in the air.However, we can drink not seawater but fresh water.To make things even   6 , people often   7  to keep the water clean.They throw rubbish into rivers, lakes or seas.So not all the fresh water is   8 for us to drink.We're short   9 water.Something must be   10 to stop this.

“ Dreams may be more important than sleep. We all need to dream.” some scientists say. Dreams take up about one quarter of our sleeping time. People have several dreams each night.

   Dreams are like short films. They are usually in color. Some dreams are like old films. They come up over and over again. That may be the dreamer worrying about something. Dreaming may be a way of trying to find an answer.

   Some people get new ideas about their work from dreams. They may have been thinking about their work all day. These thoughts can carry over into dreams.

   Too much dreaming can be harmful. The more we sleep,the longer we dream. The mind is still at work when we dream. That is why we may have a long sleep and still wake up tired.

1. It may be less important to sleep than to _____.

A.think    B.dream     C.work    D.study

2.Dreams and films are usually _____.

A.very long    B.in color    C.about work    D.very sad

3.Why do some people often dream about their work?

A.Because they are tired in the daytime.

B.Because they not interested in their work.

C.Because they may be thinking about their work all day.

D.Because they have too much work to do.

4. The main idea of the story is that_____

A.what dream is          B.people like to sleep

C.dreams are like films     D.we always remember dreams

5. Which sentence is RIGHT?

A. It is good to sleep longer.

B. We will feel tired after a long dream.

C. The mind isn’t work when we dream.

D. All people can find an answer of the work in the dream.

When we can see well, we do not think about our eyes often: It is only when we cannot see perfectly that we come to see how important our eyes are.

    People who are nearsighted（近视的） can only see things that are very close to their eyes. Many people who do a lot of close work, such as writing and reading, become nearsighted. Then they have to wear glasses in order to see distant things clearly.

    People who are farsighted face just the opposite problem. They can see things that are far away, but they have difficulty reading a book if they don't hold it at arm's length. If they want to do much reading, they must get glasses too.

    Other people do not see clearly because their eyes are not exactly the right shape. This, too, can be corrected by glasses. Some people's eyes become cloudy because of cataracts (白内障). Long ago these people often became blind. Now, however, it is possible to operate on the cataracts and remove them.

When night falls, colors become fainter（更模糊） to the eyes and finally disappear. After your eyes have grown used to the dark, you can see better if you use the side of your eyes rather than the centers. Sometimes, after dark, you see a small thing to one side of you. It seems to disappear if you turn your head in its direction. This is because when you turn your head, you are looking at the thing too directly. Men on guard duty sometimes think they see something moving to one side of them. When they turn to look straight at it, they cannot see it anymore, and they believe they were mistaken. However, this mistake happens because the center of the eye, which is very sensitive (敏感的) in daylight, is not as sensitive as the sides of the eye after dark,

1.According to the passage, a _______ is more likely to be nearsighted.

 A. guard                B. doctor                 C. writer                  D. painter

2.People who are farsighted _______.

A. cannot do a lot of close work without glasses

B. can only see things that are very close to their eyes

C. have the same problem as the nearsighted people

D. have difficulty reading a book if they hold it at arm's length

3.To see a small thing at night, we need to look _______.

A. with wide open eyes                             B. with half shut eyes

C. straight at it                                             D. in a slightly different direction

Scientists are placing robotic dogs in the homes of lonely old people to test whether they can improve the quality of life for humans. Alan Beck, an expert(专家) in human-animal relationship, and Nancy Edwards, a professor of nursing, are leading the animal-assisted study on the effect of robotic dogs on old people’s depression (沮丧) , physical activity, and life satisfaction.
In the study, the robot, called AIBO, is placed for six weeks in the houses of some old people who live alone. Before placing AIBO in the home, scientists will collect baseline data(数据) for six weeks. These old people will keep a diary to note their feelings and activity before and after AIBO. Then, the scientists will review the data to test if it has produced any changes in the life of its owner.
“I talk to him all the time, and he responds to my voice,” says a seventy-year-old lady. “When I’m watching TV, he’ll stay in my arms until he wants down. He has his own mind.”
The AIBOs respond to certain orders. The scientists say they have some advantages over live dogs, especially for old people. Often the elderly are disabled and cannot care for an animal by walking it or playing with it. A robotic dog removes exercise and feeding concerns.
“At the beginning, it was believed that no one would relate(与……相关) to the robotic dog, because it was metal and not furry.” Beck says. “Hopefully, down the road, these robotic pets could become a more-valuable health helper. They will record their masters’ blood pressure, oxygen levels or heart rhythms(心律). AIBOs may even one day have games that can help stimulate(刺激) older people’s minds.”
【小题1】The purpose of Beck and Edwards’ study is to _____________.

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