作业帮非谓语动词句型问题⒈She is often heard to sing in the next room.(动词sing前面为什么要加to?)⒉The students were made to clean the street.(东西clean前面为什么要加to?)
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非谓语动词句型问题⒈She is often heard to sing in the next room.(动词sing前面为什么要加to?)⒉The students were made to clean the street.(东西clean前面为什么要加to?)
非谓语动词句型问题
⒈She is often heard to sing in the next room.
(动词sing前面为什么要加to?)
⒉The students were made to clean the street.
(东西clean前面为什么要加to?)
非谓语动词句型问题⒈She is often heard to sing in the next room.(动词sing前面为什么要加to?)⒉The students were made to clean the street.(东西clean前面为什么要加to?)
1.这牵涉到一个常见的英语语法现象.
2.如果在“使役动词(make/let/have)/感官动词 + 宾语(sb/sth) + 宾语补足语”结构中,如果使用不定式去做宾语补足语时,其在主动句中必须使用不带to的不定式,即动词原形结构.
如：I often hear her sing in the next room.
The school made the students clean the street.
3.但是楼主需要知道并谨记的是：该结构在被动句中使用时,必须把省略的不定式to补回.
所以上述两个例子变成被动语态时,则须变成：
She is often heard to sing in the next room (by me).
The students were made to clean the street (by the school).
4.这种语法现象只限制于不定式做宾语补足语的时候,如果是现在分词/过去分词做宾语补足语,则不能这样变化.
5.楼主只需要记住这个规定即可.英语语法这东西毕竟是舶来品,我们中国人非要去用语法解释清楚未免有点自圆其说.
be heard to do sth
be made to do sth