答案:B
4.Why has medical community showed concerns about U. S. children?
A.Because U. S. children traditionally get up very late.
B.Because many students complain of too long school hours.
C.Because later school start times may affect children physically.
D.Because a lack of sleep creates harmful effects on children.
解析:推理判断题。根据第七段内容可知,美国的医学界非常关注美国学生的上课时间过早的问题。原因是上课时间过早导致学生睡眠不足,从而对学生的学业成绩和行为表现产生一系列的负面影响。
答案:D
5.What is the best title for the text?
A.Lack of Sleep Leads to Childhood Overweight
B.A Recent Study on Health Problem
C.A Danger to Children's Health
D.Sleep Time and Overweigh解析:标题概括题。消息报道类的文章主旨大意通常体现在文章第一段。本文的第一段大意为:一项研究表明9至12岁的孩子睡眠不足可能导致发胖。
答案:A
.信息匹配
阅读下列应用文及相关信息,并按照要求匹配信息。
首先,请阅读下列资讯:
A.Liu Xiang teaches quake students hurdling
Chinese hurdler Liu Xiang Monday visited students in a primary school in Bei Chuan County, a hardhit area in 2008 year's devastating May 12 earthquake, and showed them how to run hurdles.
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