8-一般现在时和一般过去时.ppt

一般现在时,知识结构,一般现在时,构成,用法,常用时间,1。主语+动词原形2。主语+动词的s/es,1、表示经常、习惯性动作。Tomoftengoesswimming2、表示一种客观事实或真理。Themoonisround。,always总是sometimes有时often/Usually经常everyday/week/year,动词三人称单数形式的构成,构成规则,例词,1、一般在动词原形末尾加slooklooksstartstarts2、结尾是o,s,sh,ch,的动词加esgogoespasspasseswashwasheswatchwatches3、结尾是“辅音字母+y”的动词,先变“y”为“i”再加-esstudystudiescarrycarriesplay-plays(元音字母+y的，则不变）,一、主语不是三人称单数时肯定：主+动词原形Weoftengoswimming.否定:dont+动原Weoftendontgoswimming.疑问:Do+主+动原?Doyouoftengoswimming?Yes,wedo./No,wedont.Ioften_letterstomyfriend.(write)Theyusually_playingfootballafterschool.(like)Sometimeswe_inPEclass.(notrun)When_you_upeveryday?(get)Thestudents_lessonsonSunday.(nothave),二、主语为三人称单数时,肯定：主+动词的s/esTomoftengoesswimming.否定:doesnt+动原Tomoftendoesntgoswimming.疑问:does+主+动原?DoesTomoftengoswimming?Yes,hedoes./No,hedoesnt.,1.Jack_togotoschoolbybikeeveryday.(have)2.Mymotheroften_towork.(walk)3.SometimesLucy_lunchathome.(nothave)4.Where_yoursister_?(work),1.He_Englishinaschool.I_mathsinaschool.(teach)2.Ioften_TV.(watch)Mybrotheroften_books.(read)3.He_classeseveryday.(have)4.They_shoppingonMonday.(notgo)5.Tom_abikeeveryday.(notride)6.Myparents_(notlike)fish.8.What_you_?(do)9.Where_youruncle_?(live)10.When_sheusually_up?(get),teachesteachwatchreadshas,dontgodoesntridedontlikedododoesworkdoesget,一般过去时,知识结构,一般过去时,构成,用法,常用时间,主语+动词的过去式,1、表示过去某个时间发生的动作或存在的状态。2、表示过去经常或反复发生的动作。,yesterdaylastnightin1990twodaysago,规则动词过去式的构成,构成规则,例词,1、一般在动词原形末尾加edlooklookedplayplayedstartstarted2、结尾是e的动词加-dlivelivedhopehopeduseused,3、末尾只有一个辅音字母的重读闭音节词，先双写这个辅音字母，再加ed,stopstoppedplanplannedtriptripped,4、结尾是“辅音字母+y”的动词，先变“y”为“i”再加ed,studystudiedcarrycarried,用法,1、表示过去某个时间发生的动作或存在的状态。Hewashereyesterday.Igotupatsixthirtyyesterdaymorning.Myfatherwasatworkyesterdayafternoon.Didyouhaveagoodtimelastsummer?,2、表示过去经常或反复发生的动作。Myfatheroftenwenttoworkbybuslastyear.WhenIwasachild,Ioftenlistenedtomusic.,构成肯定：主+动词过去式Wewentswimminglastweekend.否定:didnt+动原Wedidntgoswimminglastweekend.疑问:Did+主+动原?Didyougoswimminglastweekend?Yes,wedid./No,wedidnt.I_letterstomyfriendlastnight.(write)They_playingfootballafterschoolayearago.(like)we_PEclassyesterday.(nothave)Where_you_lastSunday?(go)They_theGreatWallin1998.(visit),PRACTISE,改写句子：1、Lucydidherhomeworkathome.（改否定句）Lucy_herhomeworkathome.2、Hefoundsomemeatinthefridge.（变一般疑问句)_he_meatinthefridge?3、Shestayedthereforawe