if引导的条件状语从句

if引导的条件状语从句用法例句①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。②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。③主句为祈使句，if从句用一般现在时态。Don’tjumpintotheriverifyoufeelveryhot.如果你感到很热，不要跳入河里。④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,Iwouldn’tdoitlikethat.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.Youmustn’tgotoschoolifyou________（be）stillinbed.4.Ifhe_______（be）athomeatthattime,hewouldknowit.5.Pleaseshowmethewayifyou________（know）it.6.Youwillhurtyourteethifyou________（eat）toomuchcandy.7.Ifyougavemeatoycar,I_________（be）veryhappy.8.IwouldgettheprizeifI_________（work）hard.