题目内容
9._______ is very dangerous to swim alone in the river.( )| A. | It | B. | This | C. | That |
分析 独自一人在河里游泳是很危险的.
解答 答案A 根据It is+形容词+to do sth.做某事怎么样,it为形式主语,动词不定式才是真正的主语.故选:A.
点评 解决形式主语的题目,做题时,要理清句子的意思以及形式宾语所指代的内容,平时记住一些固定句型,有助于提高答题的准确率.
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