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BE Doing sth和Doing sth 区别?

be doing sth,表示正在做某事 doing sth,是动名词,接在特殊动词或者介词之后,只是表示做某事,并不表示时态。 eg. I'm doing my homework.我正在写作业。 I like doing homework. 我喜欢写作业。

be to do sth. 表示未来预定要发生的行为。be doing sth. 表示现在正发生的行为。一个是将来时,一个是现在进行时。 类似的句式还有: carry on\keep doing 坚持做某事 practise doing sth. 练习做某事 keep sb. Doing 使某人一直做某事 enjoy d...

Sb. be doing sth是说正在做某事,比如I'm speaking(正在说话) Sb. doing sth好像没这种吧,除非是俚语,那就跟上面的一样意思 Sb do sth是说我做了某事,一般陈述语气,比如I stand here(我站在这里)

正在做…这时…,此外还有be about to do something when …be on the point of doing something when …将要做某事,这时 …

Be going to do = will do 将来时。。将要做某事 be doing 就是现在进行时

be busy doing sth 其实也可以是 be busy (in) doing sth.意为忙于做某事. 例:I'm busy (in) doing my home work. be busy to do sth.如果是 be too busy to do sth. 那就是too...to...结构了,可以这样用,太忙了以至于不能干什么. 但是如果没有...

没有区别。 例如: I am committed to improving the health of women everywhere. I commit to create a culture of innovation. 都是 承诺做某事 的意思

be afraid of doing...害怕做......; be afraid for sb / sth 为某人(某事)担心。不说be afraid for doing sth He was afraid of hurting my feelings. 他怕伤了我的心。 I am afraid for you. 我替您担心。 I am afraid for my future.我担心...

嗯,这个问题我们老师有讲过,其实be used for doing sth 和 be used to do sth是没有区别的,或者说是它们是一样的都可以表示“被用来……“,区别仅仅在于to后接动词原形,也就是do;而for介词(“为了....”)后接动词的现在分词,也就是ing形式。 ...

happen to do sth和happen doing sth区别如下: happen to do sth 译为碰巧、正好做了某事.(一般现在时)例如:别人问你借钱,你说I happen to have some money for you to borrow.意思就是说我正好有些钱可以借给你. 还有一种,happen to be doi...

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