while的前后时态口诀，while的前后时(shí)态要一致吗(ma)

　　可(kě)以表示过去同时发生(shēng)或者现在正在同(tóng)时发生某事。

　　1、“当……时候”，引导时(shí)间状(zhuàng)语从句(从句动作必须是延续性的(de))。

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

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

　　2、“虽(suī)然(rán)，尽管”相当于(yú)although，引(yǐn)导让步状语从句(常把while放(fàng)在句(jù)首)。

　　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(zhǐ)要(yào)，如(rú)果”等于as long as，引导条件状语从(cóng)句。

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

while的前后时态(tài)口诀

　　while的瞎棚(péng)前(qián)后(hòu)时态口蚂世诀：当while表示同时的时候，主句和(hé)从句(jù)的时态是(shì)一致的，既可以都是一般现(xiàn)在时，又可以都是一般过去时(shí)。

　　可以表示过去同时发生或者现在正在同时发生某事(shì)。

　　1、“当……时(shí)候”，引导(dǎo)时(shí)间状语从句(从句动(dòng)作必(bì)须是(shì)延续性的)。

　　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(guǎn)”相当于although，引导让步状语从句(常把(bǎ)while放在(zài)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(zhǐ)要，如果”等于as long as，引导条件状语从(cóng)句。

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

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