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阅读理解.      We may know some good health

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阅读理解.
     We may know some good health habits,but we don't realize how much difference they can make.In
the 1970s,scientists at the University of California-Los Angeles asked 7,000 people about their health habits.
Then they followed these people to see how long they lived. 
    The scientists discovered that seven habits were closely linked with a longer life.
▲eating breakfast every day
▲avoiding eating anything like cakes between meals
▲keeping a good weight-not too heavy or too thin
▲exercising regularly
▲sleeping seven or eight hours every night-not more or less
▲not smoking
▲drinking two or fewer alcoholic (含酒精的) drinks every day
     The researchers found that these habits had a powerful effect on health .People in this study who had
three or fewer of these habits lived another 21.6 years.People who had six or seven could expect to live
another 33 years!
     But how do you change your habits?Make one small change every week.And be patient.It takes about
21 days to form a new habit.
1.The underlined word "they" (Paragraph 1)most probably refers to             . [     ]
A.scientists
B.good habits
C.universities
D.7,000 people
2.One of the habits closely linked with a longer life is             . [     ]
A.taking regular exercise
B.drinking less water every day
C.eating cakes between meals
D.sleeping more than eight hours every night
3.The idea "these habits had a powerful effect on health" is supported with             . [     ]
A.guesses
B.stories
C.experiences
D.facts
4.In which page of a newspaper can you most probably read this passage? [     ]
A.News
B.Health
C.Business
D.Sports
5.The passage is written mainly to tell people             . [     ]
A.to keep a good weight
B.to avoid eating to much
C.to form good health habits
D.to keep away from danger
阅读理解.      We may know some good health
1-5:BADBC
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