while的前后时态口诀，while的前后时态要一致吗

　　可以(yǐ)表(biǎo)示过去同时发生或(huò)者现在正在同时发生某事。

　　1、“当(dāng)……时候”，引导时间状语(yǔ)从句(jù)(从句动作必须是延续性的)。

　　Please don't talk so loud while others are working.

　　While I was cleaning the window，my finger was seriously cut。

　　2、“虽然，尽管”相当于although，引导让步状语从(cóng)句(常(cháng)把while放在句首(shǒu))。

　　While she is a top student， she has some shortcomings. While the Internet is bridging the distance between people， it may also be breaking some home or will cause other family problems。

　　3、“只要，如果”等于as long as，引导条件状语从句。

　　There is hope while there is life. While you study hard， your effort will pay off。

while的前后时态口(kǒu)诀

　　while的瞎棚前后(hòu)时态(tài)口(kǒu)蚂(mǎ)世诀(jué)：当while表示同(tóng)时的时候(hòu)，主(zhǔ)句和从(cóng)句的时态是一致的，既可以都(dōu)是一般现(xiàn)在时，又(yòu)可以(yǐ)都是一般过去时。

　　可以表示过去同时发(fā)生或者现在正在同(tóng)时发生某事。

　　1、“当(dāng)……时候”，引(yǐn)导时间(jiān)状语(yǔ)从句(从(cóng)句动作必须是延续性(xìng)的(de))。

　　Please dont talk so loud while others are working.

　　While I was cleaning the window，my finger was seriously cut。

　　2、“虽然，尽管”相(xiāng)当于although，引导让(ràng)步状语(yǔ)从句(常把while放(fàng)在句首磨物则)。

　　While she is a top student， she has some shortcomings. While the Internet is bridging the distance between people， it may also be breaking some home or will cause other family problems。

　　3、“只要，如果(guǒ)”等于as long as，引(yǐn)导条件状语从句。

　　There is hope while there is life. While you study hard， your effort will pay off。

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