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为什么BE usED to 要+Doing,不是to后+动词原形吗?

to作为动词不定式的标志的时候 后面接do to作为介词的时候 后接doing 只要记住接doing 的情况就可以了 look forward to doing be used to doing get down to doing lead to doing as to doing prefer doing to doing lead to object to

look forward to doing sthperfer doing to doing

不全部是,有些短语中的to为介词,后面加动词ing.如 1. be / get used to习惯于 (区别be used to do sth 。被用来做某事 ) She isn't used to living with strangers.她不习惯与陌生人住在一起。 2. get down to开始认真(做某事) While the w...

当然是加 about doing sth。比如:how about watching a movie tonight?今晚我们一起看电影如何?how about having dinner this evening?今晚一起晚饭怎么样呢?how about doing 表示建议。其中的about在这事介词词性,所以用ing.再比如...

要看你的句子主语是什么了。如果主语是一件实际的事情,后面就用be beneficial to doing sth. 如:Reading a lot is beneficial to (improving) your english. 但是如果主语是it 作为形式主语,那么通常后面用不定式作为真正的主语,即用be bene...


前者为被动 被用来做什么事,后者的被动意为被送去,被传达到

当为过去进行时是was/were+V-ing; 因为do/did引导的为一般问句,所以一般用原形; 至于return我知道的有: return sth to sb; return to sp. 希望能帮你

look forward to doing固定用法 帮你总结下,to后面加doing的固定用法还有: pay attention to doing doing make contributions to doing be used to doing turn to doing(转行做。。) get down to doing (着力于做某事) come close...

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