题目内容

Schwarzenegger will leave for Hong Kong today,                 the former “Terminator” will be joined Jackie Chan for a public advertisement.

A. who                           B. which               C. that                          D. where

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"Humans should not try to avoid stress any more just as they would not shun food, love or exercise," said Dr. Hans Selye, the first physician to record the effects of stress on the body. While here's one question that continuous stress is harmful, several studies suggest that challenging unexpected and difficult situations can be good for you.

    In a 2001 study of 158 hospital nurses, those who faced considerable work demands but dealt with the challenge were more likely to say they were in good health. In a study at the Academic Center, researchers put volunteers through a stressful experience: a timed task that required memorizing a list followed by a short test. Those who did well on the memory test had an increase in levels of immunoglobulin A, which is the body's first line of defense against germs(细菌).

    Stress makes the body produce certain stress hormones. In short bursts these hormones have a positive effect including improved memory function. "They can help nerve cells deal with information and put it into storage," says Dr. Bruce McEwen of Rockefeller University in New York. But in the long run these hormones can have a harmful effect on the body and brain.

    "Continued stress is not good for you," says Dr. Bruce," it's the short burst of stress that could be protective."

 

69. The passage is mainly about                 .

A. how to avoid stress                  

B. how to deal with stress effectively

C. the benefits of manageable stress     

D. the effect of stress hormones on memory

70. The underlined word "shun" (Para. 1 ) most probably means                    .

    A. cut down on      B. stay away from      C. run out of      D. put up with

71. We can conclude from the study of the 158 nurses in 2001 that                .

    A. people who can' t get their job done experience more stress

    B. doing challenging work may be good for one's health

    C. stress will weaken the body' s defense against germs

    D. people under stress tend to have a poor memory

72. Dr. Bruce believes that                  .

    A. a person's memory is determined by the level of hormones in his body

    B. a person's memory improves with continued experience of stress

    C. stress hormones have lasting positive effects on the brain

    D. short bursts of stress hormones increase memory function

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