英语数词阅读训练用方框中的次完成短文.eight to ten,90 percent,2009,ei

英语数词阅读训练用方框中的次完成短文.eight to ten,90 percent,2009,ei

Tears came into this mother's eyes when she talked about waking up her son.Every morning,her(1)eight-year-old boy puts up one finger with his eyes still closed,begging for(2)one more minute to sleep.Why is he so sleepy?Because,like(3)thousands of studentsearly birdsin China,he has to get up before(4)7am every morning.Teenagers usually need(5)eight to ten hour's sleep a night,but in Shanghai,it's reported that(6)90 percent of the students do not get enough sleep.Studies show that without a good night's sleep,students seem to be weaker than they shouldbe.Many become near-sighted as a result.Now,it is better than before.From(7)2009,students mustn't go to school before(8)eight and they must do(9)half an hour's exercise every day.They also have a(10)two-day weekend.How wonderful!

就是这个解释