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选it还是what

Source: 恒星英语学习网    2017-08-09  我要投稿   论坛   Favorite  

it还是what

【请看题目】

_________ is hard is to do good all one’s life and never do anything bad.

A. He                        B. It                        C. That                        D. What

【瞧瞧分析】

此题容易误选B,认为这是考查形式主语。其实,此题的正确答案是D,句首的 What is hard 是主语从句,注意 what is hard 后的谓语动词 is。假若没有此 is,则应选B,即说成 It is hard to do good all one's life and never do anything bad.

【举一反三】

请做以下类似试题(答案均为C):

(1)  a. _________ is difficult to persuade her to stay.

      b. _________ is difficult is to persuade her to stay.

      A. It, It                      B. What, What                C. It, What                   D. What, It

(2)  a. _________ is interesting to watch children play games.

       b. _________ is interesting is to watch children play games.

       A. It, It                     B. What, What                C. It, What                   D. What, It

(3)  a. _________ is dangerous to play with fire.

       b. _________ is dangerous is to play with fire.

       A. It, It                      B. What, What               C. It, What                   D. What, It


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