根据“Teenagers: 8-10”可知,青少年应该睡8到10小时,故选B。 (2)题详解: 细节理解题。根据“Tiredness usually peaks twice a day, at 2 a.m. and 2 p.m.”可知,疲劳通常在一天中达到高峰,分别是凌晨2点和下午2点。结合选项,人们一天中下午2点最困,故选C。 (3)题详解: 推理判断题。本文主...
1. How long do teenagers need to sleep at least every day? A. Seven hours. B. Eight hours. C. Nine hours. 2. What time do people feel the sleepiest during a day? A. B. C. 3. The writer proves a lack of sleep plays a role in accidents by ___. A. asking questions ...
【题目】—___ do teenagers need to sleep ? —At least eight hours a night. A. How longB. How manyC. How often试题答案 在线课程 【答案】A 【解析】 句意:——青少年需要睡多久?——至少每晚8小时。 how long多久,用于提问时间段;how many 多少,用来提问可数名词的数量;how often 多少时间一...
Sleep disorders may be related to factors such as smoking cigarettes or lack of physical activity, as well as difficulties in concentrating attention, memory disorders or worse academic performance and a tendency to contract upper respiratory tract infections. 2). Elimination of factors that may ...
Don’t do homework in bed– Especially for teenagers, it is important to separate where they do their homework, which they may associate with feelings of stress, from where they sleep. Create a comfortable, sleep-promoting environment– A cool, dark, and quiet bedroom may calm your body and...
题目—___ do teenagers need to sleep ?—At least eight hours a night.()A. How long B. How many C. How often 相关知识点: 试题来源: 解析 A 句意:——青少年需要睡多久?——至少每晚8小时。how long "多久",用于现在完成时中,提问时间段;how many "多少"用来提问可数名词的数量;how often...
How long do teenagers need to sleep a day?A. Less than seven hours.B. Eight hours or so.C. More than ten hours.D. OverE. leven hours. 相关知识点: 试题来源: 解析 [答案]B [解析]细节理解题。由题干中的关键词need to sleep a day可定位到文章第三段第三句,由第四句可知,B项正确。
How many hours should teenagers sleep a day? 试题答案 在线课程 分析青少年应该每天睡8到9个小时. 青少年应该每天睡多少个小时? 解答答案:How many.划线部分是8 to 9表示的8到9个小时,hours是可数名词复数"小时",提问用how many表示多少,故答案是How many. ...
Why Do Teens Stay Up Late? Sleep Deprivation Explained Teenagers stay up later due to their circadian rhythm, or biological clock changes in adolescence—they naturally fall into a later sleep-wake cycle, and melatonin is released later in the evening for them than adults, which may cause teens...
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