题目内容
7._____ is not easy for us to play ping-pong well.( )| A. | That | B. | It | C. | Its | D. | This |
分析 对我们而言,打好乒乓球不容易.
解答 答案:B.句子中动词不定式短语to play ping-pong well为句子真正的主语,这里要用it充当句子的形式主语,句子结构为It is easy for sb.to do sth.做某事对某人来说容易,故选:B.
点评 理解句子的结构,抓住句子中真正的主语,这类句型真正主语为动词不定式短语或动名词短语,这时要用it充当形式主语来平衡句子的结构.
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