题目内容
6．Wechat （微信）is an invention _________can help people talk to friends，share photos，ideas and feelings freely．_________wonderful!（ ）
| A． | which；How | B． | who；How | C． | that；What | D． | who；What |
分析 微信是一种能帮助人们自由地同朋友进行交谈，分享照片、想法和感受的发明．多好啊！
解答 答案：A．根据题干可知，_________can help people talk to friends，share photos，ideas and feelings freely是修饰前面的invention的，说明是什么样的发明，故本句是一个定语从句．又根据先行词invention是事物，关系代词应用which或that；根据第二个句子的结构可知，本句是一个感叹句；又根据what修饰名词，how修饰形容词可知，wonderful为形容词，应用how．故选A．
点评 对于定语从句，主要应注意先行词是人还是物；而对于感叹句，应注意what和how修饰的词是名词还是形容词．
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