if引导的条件状语从句(2页).doc
-if引导的条件状语从句-第 页if引导的条件状语从句用法例句主句为一般将来时态,if从句用一般现在时态(即主将从现)。Wewillstayathomeifitrainstomorrow.如果明天下雨,我将要呆在家。主句中含有情态动词,if从句用一般现在时态。Ifyoufinishyourhomework,youcangohomenow.如果你做完了作业,你现在可以回家了。主句为祈使句,if从句用一般现在时态。Dontjumpintotheriverifyoufeelveryhot.?如果你感到很热,不要跳入河里。主句为过去将来时,if从句用一般过去时态(如果涉及到be动词,一律都用were)。此时,表达的是和现实相反的推测,用虚拟语气。IfIwereyou,Iwouldntdoitlikethat.如果我是你,我就不会那么做的。Ifyougavemesomemoney,Iwouldbeveryhappy.?如果你给我一些钱,我就会很高兴的。【边学边做】用括号内所给词的正确形式填空。1.Whatwillyoubuyifyou_(have)alotofmoney?2.Ifit_(notsnow)tomorrow,wewillfeelunhappy.3.Youmustntgotoschoolifyou_(be)stillinbed.4.Ifhe_(be)athomeatthattime,hewouldknowit.5.Pleaseshowmethewayifyou_(know)it.6.Youwillhurtyourteethifyou_(eat)toomuchcandy.7.Ifyougavemeatoycar,I_(be)veryhappy.8.IwouldgettheprizeifI_(work)hard.将下列句子翻译成英语。1.如果明天不下雨,我就和同学们去野餐。2.如果周日你去购物的话,我就去。3.如果你想减肥(loseweight),就锻炼身体吧。4.如果冬天来了,春天还会远吗?5.如果可能的话,我就去火车站接你。Key:1.Ifitdoesntraintomorrow,Iwillhaveapicnicwithmyclassmates.2.IwillgoshoppingonSundayifyoudo.3.Takesomeexerciseifyouwanttoloseweight.4.Ifwintercomes,canspringbefarbehind?5.If(itis)possible,Illmeetyouatthetrainstation.