题目内容
5.Even today we still have no solid evidence ________ there are living creatures in outer space.( )A. | how | B. | when | C. | where | D. | whether |
分析 直到今天我们还没有外太空是否存在生物的确切证据.
解答 答案:D 题干中there are living creatures in outer space是修饰名词evidence,解释evidence的内容,是一个同位语从句;how表示方式,when表示时间,where表示地点,whether表示是否;句意表达的是不确定的内容,要用whether来引导.故选D.
点评 同位语从句是名词性从句的一种,用来解释名词的内容.学习时,要注意区分和定语从句的差别,定语从句是用来修饰名词,同位语从句是用来解释名词的内容.
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