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  People faint when the normal blood supply to the brain is suddenly cut down. This can happen if they are surprised or shocked by sudden news or by something they see. Some people faint if they see others hurt. Some people faint in crowds. Others faint if they are in a room that is hot and stuffy.

  If a person faints while standing, lay him down. If his face is pale, lift his feet. If he is sitting down when he faints, place his head between his knees. Loosen any tight clothing that might keep him from breathing easily. If possible, place a cold, wet cloth on his forehead.

1. The story says that people can faint if they are______.

A. worried B. frightened C. happy D. Both A and B

2.People might faint if they_______.

A.see others hurt B. hear bad news C. are in a crowd D. Any of the above

3.If you feel faint, it is best to______.

A. lie flat B. stand up C.move slowly D. run about

4.If you feel faint when sitting, put your head______.

A.against the chair back   B.between your knees

C.on your chest D.to one side

5.Raise a fainting person's feet if his face______.

A. feels hot B. shows shock C. looks pale D. Both A and B

6.We try to help a person who has fainted by______.

A.tightening his muscles    B.rubbing his head

C.returning blood to his brain  D.holding him in an upright position

答案:B;D;A;B;C;C
解析:

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a, b, c, f, d, e

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Every year at least 60 storms form off Africa.

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About one third of the hurricanes tend to be very big.

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