题目内容
7.Teenagers should sleep 8 to 9 hours a day.(对划线部分提问)How many hours should teenagers sleep a day?
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.
点评 要理解划线部分的含义,以及在句中的句子成分,判断出疑问词,疑问词后需跟一般疑问句语序.
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