Many people play with their smart-phones.however.most of them have no idea ．( )A．how they keep their phones cleanB．that they keep their phones cleanC．how would they keep their phones cleanD．how d 题目和参考答案——青夏教育精英家教网——

题目内容

17．Many people play with their smart-phones，however，most of them have no idea _________．（　　）

	A．	how they keep their phones clean
	B．	that they keep their phones clean
	C．	how would they keep their phones clean
	D．	how do they keep their phones clean

分析许多人玩手机，然而，大多数人不知道怎么样保持手机清洁．

解答答案：A．根据 most of them have no idea 大多数人不知道，可知横线空白部分是对前面idea的补充说明，是同位语从句，大多数人不知道怎么样保持手机清洁，同时名词性从句应使用陈序句语序，故选A．

点评本题考查同位语从句，在熟知同位语从句连接词，充分分析句型基础上便能选出正确答案，注意同位语从句的引导词不仅仅有that．

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