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  There is no living creature that does not need sleep or complete rest every day.

  If you want to know why, just try going without sleep for a long period of time I You will discover that your mind and body would easily be made angry and find it hard to think clearly or bring your attention on your work . So sleep is quite simply the time when the cells (细胞)of your body recover from the work of the day and build up supplies of energy for the next period of activity.

  One of the things we all know about sleep is that we are unconscious(无知觉的)in sleep. We do not know what is going on around us. But that does not mean the body stops all the activities. The necessary organs(器官)continue to work during sleep, but most of the body functions (功能)are slowed down .

  Your body temperature becomes lower when you are sleeping, which is the reason why people go to steep under some kind of covers. And even though you are unconscious, many of your reflexes(反应能力)still work. For example, if someone touches your foot slightly, you will put it away in your sleep, or even brush a fly from your forehead. You do these things without knowing it.

1.If a man did not sleep for a long time, ________.

[  ]

A.his mind would become tired but his body could work properly

B.It would be hard to make him angry

C.he would not think clearly or bring his attention on his work

D.he would become tired out but could keep on working

2.Sleep can not ________.

[  ]

A.make your body recover

B.build up your strength

C.add your cells

D.be helpful to your mind

3.When you are asleep, ________.

[  ]

A.it is hard for you to know what is going on around

B.you stop all the activities

C.your necessary organs stop working

D.your body functions are all slowed down

4.According to the text, we know that ________.

[  ]

A.when a person is sleeping, his body temperature becomes lower

B.in someone's sleep, he knows nothing except for his sleeping

C.it's possible for someone to brush a fly from his forehead with conscious in his sleep

D.one can sleep so deeply that even your touching his foot can not cause his reflex

“Confidence” is probably one of the most noticeable traits(品质)in the Americans. They show confidence in the way they talk, the way they smile, the way they dress and the way they walk. Living and competing with all these confidence American students, I find it extremely important to be confident as an international student and instructor. As a student, being confident means you should never hesitate to raise your hand whenever a question or a point comes to your mind. Don’t mind if it sounds simple or silly. Otherwise you will never get a chance to speak in class at all. What’s worse, the professors may think you are not prepared for the discussion or you do not have your own opinion on the issue-this is the last comment any graduate would like to receive。  
Being confidence for me as a foreign instructor means calmly asking the student to repeat what he or she has said if I did not get it. Pretending to understand what you actually did not may just bring yourself embarrassment or even disgrace. But the time I most need to be confident is when my students come to my office and bargain about the grades I have given for their Speeches。(The course I’m teaching here is Public Speaking). Modesty is a trait highly valued in China, but it won’t be of much help here if you want to survive and succeed in a good American graduate program.
【小题1】To compete with American students it’s very important to

A.be quite confident
B.be polite and friendly
C.have more discussions with
D.understand what they think about
【小题2】A professor will have the worst opinion of a student who
A.gives a silly or simple answer
B.tries to seize any chance to speak in class
C.shows no interest in the course
D.is considered to have no opinion of his own
【小题3】The author is most likely to feel embarrassed if
A.he asks a student to repeat what he has said
B.the students bargain with him
C.he pretends to know what he doesn’t
D.he has to give a speech
【小题4】We learn from the second paragraph that
A.we should also remain modest in America
B.modesty doesn’t help modest in America
C.American also like modest people
D.modesty can help you through an American graduate program
【小题5】What can we infer from the passage?
A.American students are ready to accept the grades from the teacher.
B.The writer teaches in Europe for a living.
C.Students are encouraged to present simple questions.
D.One’s ignorance will give away in time.

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