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求 BEForE Doing sth的用法?????

before在这里只是个介词,所以后面需要跟动词的ing形式,与时态无关。因此,before doing sth.前是可以用过去时态的。 去电影院前,我去了图书馆可以如下翻译: I went to the library before going to the cinema. 如果帮助到你的话,请采纳,谢谢

before 后面是接doing,但是请注意:before后面有一个it。这个it是主语,所以选stops作其谓语。 stopping 不可以作谓语。

都对 前者是介词; 后者是从属连词,引导时间状语从句 【希望帮助到你,若有疑问,可以追问~~~ 祝你学习进步,更上一层楼!(*^__^*)】

We must have a plan before doing any work.做任何工作前,我们必须订好计划。 We all should warm up before doing some exercises.开始做运动前,我们都应该热身。 He always consulted others before doing anything .他做什么事情都先和别...

前者

1、before后面直接跟动词的,那个动词就用ing形式; 例如:I go to the WC at first before going home. (在回家之前先去趟厕所) before后面有宾语的,其后动词就用原形; 例如,I clean the room at first before you come here. (在你来这儿...

词组 hammer out 设计出;锤成;苦心想出 I think we can hammer out a solution. 我想我们能够制定出一个解决方案。 Sth doing , 这种一般都是分词做定语修饰前面的中心词。

leave sb doing sth让某人一直做某事,宾语与宾补之间是逻辑上的主动关系,表进行。 it is wrong of you to leave the machine running. leave sth to be done留下某事要做,不定式表将来。 We hurriedly ended our meeting,leaving many proble...

to do sth. 中的to 是动词不定式符号,后只加动词原形,而 to doing sth.中to 一定是作介词用的。 所以在英语中,要先认清to 是作什么用的,然后再加不同的形式 如 He asked me to help him with his English. I am looking forward to seeing y...

make 使…… (有轻微强迫之意) 1.make +宾语+do 迫使某人做某事,被动语态为be made to do sth — The boy made the girl cry. 男孩把女孩惹哭了。 — The girl was made to cry by the boy. 女孩被男孩惹哭了。(被动) 2.make+宾语+adj./adv./pr...

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