不定式用主动形式还是被动形式,往往取决于句子的意思,即意思上为主动就用主动形式,意思上为被动就用被动形式,如:
Did it need to be done so soon? 这事需要这么快就做吗?
She can’t bear to be laughed at. 她受不了被人嘲笑。
There was business to be taken care of. 有生意要人管理。
It remains to be seen whether you are right. 你是否正确,以后见分晓。
There was a lot of rubbish to be got rid of. 有大量垃圾需要扔掉。
不定式完成被动式的用法:
不定式的完成被动式表示发生在谓语动作之前的被动动作:
I’m pleased to have been given this opportunity. 给了我这次机会我很高兴。
It’s said to have been built in the Ming dynasty. 据说它是明朝修建的。
扩展资料:
在英语中不定式最常用于质词"to"之后, 例如在 "to walk", "to cry", "to eat", "to fear".这种用法叫做to-infinitive。莎士比亚在著作哈姆雷特的独白时就大量采用了这类不定式动词。
To be or not to be ...
To sleep, perchance to dream ...
经常跟在to后形成不定式的动词包括:
例如:
I arranged to stay the night. ("我已安定好今晚留在这里。")
We intend to go skiing this weekend. ("我们打算这个周末去滑雪。")
I swear to honour you. ("我发誓为你增光。")
这些有宾词,然后加上有to的不定式的动词包括 (连同以上带有星号的动词): advise, allow, challenge, command, compel, condemn, enable, encourage, expect, forbid, force, help, induce, inspire, instruct, invite, oblige, order, permit, persuade, prefer, program, remind, teach, tell, train, urge, warn.
有些动词之后加 for + 宾词 + to-然后不定式. 通常这些动词包含渴望的意思,不能单单在后面加上宾词和不定式 (though an infinitive alone may work). 这些动词包括 apply, arrange, ask, call, clamour, long, opt, plead, press, vote, wait, wish, yearn.
例如:
I have arranged for the neighbour to water the plants. (“我已安排好邻居给植物给水。”)
I pleaded for him to accompany me to the theatre. (“我恳求他陪我去看戏。”)
参考资料来源:百度百科-动词不定式