finished finish

一、情态动词后不是接动词原形吗? 请看题 :Mr. Wang does what he can ________ us improve our English.
【finished finish】A. help B. to help C. helping D. helped
这道题有的考生毫不犹豫地做错了 , 因为老师说过情态动词后接动词原形 , 所以错误地选了A 。事实上 , 情态动词是与不带“to”的不定式一起构成复合谓语 , 这道题学生错误地选了A选项的关键还是句子结构没搞清楚 , 其句子结构为:Mr. Wang(主语)does(谓语) what he can(宾语从句 , 其中从句中can后面省略了do)to help us improve our English(状语) , 因此正确答案是B 。这道题也反应了英语与汉语的思维方式的不同 , 英语状语位置灵活 , 可以放句末 , 而汉语状语一般放句首 , 如果这道题题干改成:________ us improve our English , Mr. Wang does what he can , 相信很多考生不会做错 。
二、居然有to to finish?没见过哟!请看题:─What else should we pay attention to _______ building the bridge?
─The change of the weather, I think.
A. finish B. finished C. to finish D. finishing
本题中pay attention to中的to为介词 , 介词要带宾语 , 问题的关键是由于本句是疑问句 , 疑问代词做介词to的宾语 , 也就是宾语前置 。后面to finish building the bridge是状语 , 所以正确答案为C 。
三、怎么玩?是to play还是to playing?请看题:─Grandpa has changed a lot.
─So he has. He spends more time than he used to ______ games with the children.
A. play B. playing C. played D. plays
本题正确答案是B , than he used to为状语 , 状语是句子的分支 , 如果我们先不看这个状语 , 只看句子的主干的话: He spends more time______ games with the children , 答案就很明显了 , spend可构成spend time doing sth/on sth结构 。

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