Question

【题目】 People spend almost a third of their lives doing one thing—sleeping. Every year, there is a special day for people around the world to celebrate the importance of good and healthy sleep—World Sleep Day.

Sleep is like food for the brain. 【1】

People of different ages need different amounts (数量 ) of sleep. According to the National Sleep Foundation (国家睡眠基金会) in the US, adults should get seven to eight hours of sleep a night 【2】 And school-aged children may need more than ten hours of sleep.

【3】 The China Youth and Children Research Center said that about 80 percent of middle school students don't get enough sleep. It has influenced students' school life. 【4】 They can't pay attention in class or do well in sports.

To solve this problem, scientists advise that students should get less schoolwork and more time to sleep. 【5】 Good sleep habits help a lot. For example, try to go to sleep and wake up at the same time every day, even on weekends and during holidays.

Answer 1

【答案】

【1】C

【2】A

【3】E

【4】F

【5】D

【解析】

本篇文章难度适中，主要讲述睡眠的重要性以及不同年龄段的睡眠时间。最后针对中国的学生没有足够的睡眠这个问题提出了建议。

【1】根据前句“Sleep is like food for the brain”（睡眠就像是大脑的食物）可知，结合选项，应说“充足的睡眠有助于大脑和身体的发育”，故选C。

【2】根据前句“adults should get seven to eight hours of sleep a night”（成年人应该每晚睡七到八个小时）和后句“And school-aged children may need more than ten hours of sleep”（学龄儿童可能需要超过十小时的睡眠）可知，结合选项，应说“青少年需要九到十个小时”，故选A。

【3】根据后句“The China Youth and Children Research Center said that about 80 percent of middle school students don't get enough sleep. It has influenced on students' school life”（中国青年儿童研究中心说，大约80%的中学生睡眠不足，影响了学生的学习生活）可知，结合选项，应说“睡眠不足的学生成绩很差”，故选E。

【4】根据后句“They can't pay attention in class or do well in sports”（他们上课时注意力不集中，体育运动也做得不好）可知，结合选项，应说“然而，因为太多的作业，许多学生没有得到足够的睡眠”，故选F。

【5】根据前句“To solve this problem, scientists advise that students should get less schoolwork and more time to sleep”（为了解决这个问题，科学家建议学生应该少做功课，多睡会儿）和后句“Good sleep habits help a lot”（良好的睡眠习惯有很大帮助）可知，结合选项，应说“中午睡20分钟也是有用的”，故选D。