摘要:3.China has jnto a beautiful and modem country.

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The word “day” has two meanings. When we talk about the number of days in a year, we are using “day” to mean 24 hours. But when we talk about day and night, we are using “day” to mean the time between sunrise and sunset. Since the earth looks like a ball, the sun can shine on only half of it at a time. Always one half of the earth is having day and the other half night. A place is moved from day into night and from night into day over and over by the spinning(旋转)of the earth. At the equator(赤道)day and night are sometimes the same length(长度). They are each twelve hours long. The sun rises at 6 o’clock in the morning and sets at 6 o’clock in the evening. For six months the North Pole is tilted(倾斜)toward the sun. In those months the Northern Hemisphere(半球)gets more hours of sunlight than the Southern Hemisphere. Days are longer than nights. South of the equator nights are longer than days. For the other six months the North Pole is tilted away from the sun. Then the Southern Hemisphere gets more sunlight. Days are longer than nights. North of the equator nights are longer than days. Winter is the season of long nights. Summer is the season of long days.

(   )6.When the Western Hemisphere is having day, the Eastern Hemisphere is having ________.

       A. both day and night              B. day

       C. neither day nor night            D. night

(   )7. A place is moved from day into night and from night into day over and over by ________ of the earth.

       A. the pushing                    B. the pulling

C. the spinning                    D. the passing

(   )8. At the equator day is as long as night ________.

          A. sometimes     B. never       C. usually        D. always

(   )9. When the North Pole is tilted toward the sun, the Northern Hemisphere gets ________ sunlight.

      A. less           B. more       C. all            D. no

(   )10. When it is winter in China,  ________.

      A. the USA is tilted toward the sun

      B. the South Pole is tilted away from the sun

      C. the North Pole is tilted toward the sun

      D. the North Pole is tilted away from the sun

 

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  Expert(专家)say that students usually need eight to ten hours’ sleep at night, but most Chinese students do not get enough sleep. Some Chinese parents are usually glad to see their children studying late. They will think their children work very hard, but not all parents are happy about this. Once a mother told us that every morning her 10-year-old boy put up one finger(手指)with his eyes still closed, begging(请求)for one more minute to sleep. Like thousands of students “early birds” in China, he has to get up before six every morning.

   A report shows that without a good night’s sleep, students seem to be weaker(虚弱)than they should be. Many students have fallen asleep(睡觉) during class at one time or another. Too much homework is not the only reason why students stay up late. Some watch TV or play the computer games late into the night.

   Experts have ever said that the students should develop good study habits. So some clever students never study late, they are able to work well in class.

1.The 10-year-old boy begged for more minute to sleep because__________.

A. he didn’t have enough sleep    

B. it wasn’t time for him to get up

C. he didn’t want to go to school 

D. he wanted his mother to wake him up

2.In this passage we know if students don’t get enough sleep, they may________.

A. become too weak to sleep     B. not work well in class

C. go to bed early         D. be weak in English

3.In this passage “early birds” means “persons who ______________.”

A. get up early B. get up late

C. sleepless D. don’t want to sleep

4.“Stay up late” here means “_____________.”

A. study late B. watch TV late 

C. not go to bed until late D. stay outside

5.According to the passage, which of the following is right? _________.

A. If you want to study better, you must work hard at night.

B. Sleeping less means working hard.

C. Some clever students are able to work well in class because they have good study habits.

D. Students don’t have enough sleep because they have lots of homework to do.

 

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