while的前后时态口诀，while的前后时态要一(yī)致吗

　　可以(yǐ)表示(shì)过去同时发生或者现在(zài)正在同时(shí)发生某事(shì)。

　　1、“当……时(shí)候”，引导时间状语(yǔ)从句(jù)(从句(jù)动作必须是(shì)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(suī)长征有多长公里 红军长征一共用了几年然，尽管”相当于although，引导让步状(zhuàng)语(yǔ)从句(jù)(常把while放在句首)。

　　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、“只要，如果”等于as long as，引导条件(jiàn)状语(yǔ)从句。

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

while的(de)前后(hòu)时态口诀

　　while的瞎棚前后(hòu)时态口蚂(mǎ)世诀：当while表示同时的时(shí)候，主句和(hé)从(cóng)句的时态是一致的，既可以都是一(yī)般(bān)现在(zài)时，又可(kě)以(yǐ)都是一般过去时(shí)。

　　可以表示过去同时发(fā)生或(huò)者现在正在同时发(fā)生某事。

　　1、“当……时候”，引导时间状语从句(从句动作必(bì)须(xū)是延续性的(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(jǐn)管”相当(dāng)于(yú)although，引导让步状语从句(常把(bǎ)while放在句首磨(mó)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，引导条件状语(yǔ)从句。

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

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