分析 本文是一篇與睡眠相關的短文,講述了睡眠與健康的關系,不同年齡的人需要的睡眠時間,中國青少年學生的睡眠現(xiàn)狀以及解決措施等等.
解答 51.A 52.C 53.B 54.A 55.D
51.A 細節(jié)理解題.根據第二段里的:adults need seven to nine hours of sleep every night.可知成年人每晚需要七至九小時睡眠.故選:A.
52.C 細節(jié)理解題.由第三段第一句:However,many students don't get enough sleep because of early school start times and too much homework.可知因為上課開始時間早而且作業(yè)多,許多學生得不到足夠的睡眠.故選C.
53.B 細節(jié)理解題.由第三段最后的句子:Students without enough sleep may get poor grades.They can't pay attentionin class or do well in sports.可知,睡眠不足的學生可能成績差,課堂上無法集中精力,不能做好運動.故選:B
54.A 推理判斷題.根據短文第三、四段,可知睡眠不足是因為作業(yè)多,學校上課早,睡眠習慣不好.故選A.
55..D.細節(jié)理解題.根據短文最后一段scientists advise that students should get less schoolwork and more time to sleep.There are some other ways to help people get enough sleep,such as taking a 20-minutes nap (小睡) during the day.Good sleep habits are also helpful,解決睡眠問題可以減少作業(yè)、增加睡眠時間、白天小睡、養(yǎng)成好的睡眠習慣.故選D.
點評 從文章中找到相關細節(jié)性的句子與選項細細比對,進行選擇或推理判斷,選出符合文章內容的正確選項.做題注意靈活,有時可采用排除法或直選法確定出最終答案.
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