On weekday mornings, Jeilun Liao, 10, gets up at 7:40 am. He brushes his teeth and gets dressed (穿上衣服). Then he heads to school. Jellun gets between 8 and 10 hours of sleep a night. on most nights, he has a hard time falling asleep. Getting up in the morning isn’t easy for this fourth grader.
Jeilun is not alone. Experts(专家)say children aged between 5 and 12 should get 10 to 11 hours of sleep each night. But in fact , kids are only sleeping about 9.5 hours a night. The amount of sleep you get can affect how well you learn. Students who are well rested do better in math and writing test. Kids who don’t get enough sleep have a harder time paying attention in class. This can affect future test performance. Also, you will get annoyed(气恼) if you don’t sleep well. What is keeping kids up at night? More kids are using computers, playing video games, and watching TV at bedtime. These activities cause your eyes to receive a lot of bright light at a time when your body needs soft light to help you sleepy. It’s never too late to change your sleep habits. Go to sleep early for a week. You will be surprised at the difference.
21. What does the underlined sentence in Paragraph 2 mean?
A. Jeilun’s parents never leave him alone. B. Jeilun likes to stay at his friends’ houses
C. There are many people in Jeilun’s family
D. Jeilun is not the only kid who needs more sleep
22. If a kid doesn’t get enough sleep, he will ______________.
A. do better in math B. get angry easily
C. do better in writing stories D. have no trouble in falling asleep
23. According to the writer, why can’t kids have enough sleep?
A. They have a lot of homework to do. B. They are afraid of being late for school
C. They are too worried about their future test performance
D. Light from TV and computers makes falling asleep difficult.
24. From the passage, we know _____.
A. the longer a kid sleeps, h better he behaves
B. it needs a long time to change one’s sleep habit
C. the writer is an expert on children’s sleeping
D. Jeilun Liao suffers a lot from playing computer games.
25. What is the passage mainly about?
A. American kids’ sleeping habits B. Jeilun, an American fourth grader
C. The importance of having enough sleep for kids
D. The amount of sleeping time a kid needs to perform well.
DBDBC
A. Profits enlarging B. Technology developing C. Education investing D. Benefits transferring E. Dominance disappearing F. A nation rising |
The following is an imaginary diary entry written by US president. This diary is part of Global Trends 2025, which was written by the US National Intelligence Council
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The
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The
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Global wealth and economic power will shift from West to East.
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The transition from old fuels to new will be slow, as will the development of new technologies that present feasible alternatives to fossil fuels or help eliminate food and water problems. All current technologies are inadequate, and new ones will probably not be commercially possible by 2025