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C
"Early to bed and early to rise makes a man healthy, wealthy and wise." This is an old English saying. It means that when we go to bed early, we can get up early the next morning. Then we will become healthy. We will also become rich and clever.
This is true. To keep healthy, we must have enough sleep. Experts(专家) say that adults(成人) should get seven to eight hours of sleep a night. Teenagers(青少年) need nine to ten hours. And school-aged children may need more than ten hours of sleep. Children who do not have enough sleep can't do their work very well. They won't be wise and they may not become healthy!
We also need exercise. Walking,running, swimming and playing games are all exercise. Exercise keeps us strong. It also helps the blood to move around the body. This is very important. Our blood takes the nutrition(营养) from food to all parts of our body.
The head also needs blood. So exercise that moves the blood to our head helps us think better!
()26. If we get up early and go to bed early,we'll .
A. become weak B. have more time
C. be healthy D. have more work to do
()27. Who needs the most hours of sleep to keep healthy?
A. Adults. B. Teenagers.
C. Experts. D. School-aged children.
()28. A child when he does not have enough sleep.
A. can't study well B. will be wise
C. will be healthy D. will be active in class
()29. A person needs exercise because .
A. he is not strong enough
B. it makes him healthy
C. he has a lot of homework to do
D. it can bring him much blood
()30. Which of the following is NOT true?
A. Exercise helps the blood to move.
B. Exercise is good for a person's head.
C. If we have enough blood,we'll be wise.
D. It's good for us to get up early and go to bed early.
"Early to bed and early to rise makes a man healthy, wealthy and wise." This is an old English saying. It means that when we go to bed early, we can get up early the next morning. Then we will become healthy. We will also become rich and clever.
This is true. To keep healthy, we must have enough sleep. Experts(专家) say that adults(成人) should get seven to eight hours of sleep a night. Teenagers(青少年) need nine to ten hours. And school-aged children may need more than ten hours of sleep. Children who do not have enough sleep can't do their work very well. They won't be wise and they may not become healthy!
We also need exercise. Walking,running, swimming and playing games are all exercise. Exercise keeps us strong. It also helps the blood to move around the body. This is very important. Our blood takes the nutrition(营养) from food to all parts of our body.
The head also needs blood. So exercise that moves the blood to our head helps us think better!
()26. If we get up early and go to bed early,we'll .
A. become weak B. have more time
C. be healthy D. have more work to do
()27. Who needs the most hours of sleep to keep healthy?
A. Adults. B. Teenagers.
C. Experts. D. School-aged children.
()28. A child when he does not have enough sleep.
A. can't study well B. will be wise
C. will be healthy D. will be active in class
()29. A person needs exercise because .
A. he is not strong enough
B. it makes him healthy
C. he has a lot of homework to do
D. it can bring him much blood
()30. Which of the following is NOT true?
A. Exercise helps the blood to move.
B. Exercise is good for a person's head.
C. If we have enough blood,we'll be wise.
D. It's good for us to get up early and go to bed early.
答案
26. C
27. D
28. A
29. B
30. C
27. D
28. A
29. B
30. C
解析
26. 根据第一段"Early to bed and early to rise makes a man healthy, wealthy and wise."及对应内容可知，早睡早起会让我们健康，故选C。
27. 根据第二段内容，成人需7-8小时睡眠，青少年需9-10小时，学龄儿童需超过10小时睡眠，因此学龄儿童需要的睡眠时间最多，故选D。
28. 根据第二段"Children who do not have enough sleep can't do their work very well."可知，睡眠不足的孩子无法很好地完成功课，即学习不好，故选A。
29. 根据第三段"Exercise keeps us strong. It also helps the blood to move around the body."可知，锻炼能让我们强壮、促进血液循环，总体是帮助我们保持健康，故选B。
30. A选项由第三段"It also helps the blood to move around the body."可知正确；B选项由第四段"So exercise that moves the blood to our head helps us think better!"可知正确；D选项由第一段内容可知正确；C选项文中未提及“有足够的血就会聪明”，表述错误，故选C。
27. 根据第二段内容，成人需7-8小时睡眠，青少年需9-10小时，学龄儿童需超过10小时睡眠，因此学龄儿童需要的睡眠时间最多，故选D。
28. 根据第二段"Children who do not have enough sleep can't do their work very well."可知，睡眠不足的孩子无法很好地完成功课，即学习不好，故选A。
29. 根据第三段"Exercise keeps us strong. It also helps the blood to move around the body."可知，锻炼能让我们强壮、促进血液循环，总体是帮助我们保持健康，故选B。
30. A选项由第三段"It also helps the blood to move around the body."可知正确；B选项由第四段"So exercise that moves the blood to our head helps us think better!"可知正确；D选项由第一段内容可知正确；C选项文中未提及“有足够的血就会聪明”，表述错误，故选C。
