一般现在时、现在进行时及一般过去时讲解课件(53张ppt)-(1)

时态大比拼,一般现在时态现在进行时态一般过去时态讲解与练习,Heworks.Heisworking.Heworked.,何为时态？,在英语中，不同时间发生的动作或存在的状态要用不同的动词形式来表现。,时态,现在进行时：,一般现在时：,一般过去时：,现在正在进行的动作,经常或习惯性的动作。,过去某个时间或时间段结束的动作。,一般现在时,every,sometimes,attimesalways,usually,often,seldom,never,every,threetimesaday,现在进行时,一般过去时,yesterday,lastweek,-ago,theotherday,in+年,justnow,When,nowthesedays,rightnow，Look,Listen.atPresent，atthemoment,Tomalwaysgetspresentsonhisbirthday.Theyusuallygotoschoolatsevenoclcok.MymotheroftenwatchesTVonthecomputer.Wesometimesplaybasketballafterschool.,总是,通常,经常,有时,Hestwelve.Iamastudent.,一般现在时：表示现在的状态或经常、习惯性的动作：,Look!,Lily,Lucy,现在进行时,表示现在说话瞬间正在进行的动作。Sheisreadinginthereadingroomnow.Weareworkingonafarmthesedays.,1、Lucydidherhomeworkathome.（改否定句）Lucy_herhomeworkathome.2、Hefoundsomemeatinthefridge.（变一般疑问句)_he_meatinthefridge?3、Therewassomeorangeinthecup.（变一般疑问句)_there_orangeinthecup?,didnt,do,any,find,Did,Was,any,1一般过去时表示过去某个时间结束的动作或存在的状态。,Ididmyhomeworkyesterday.IplayedsoccerlastSunday.Icleanedmyroomlastweek.Iwenttothebeachthreeyearsago.Iplayedtenniswithmyfriendslastweekend.Iwenttothemoviesthreedaysago.,Heisateacher.,2.KangkangcomesfromChina.,3.Iusuallytakethebustowork.,先（一般疑问句）再（否定句）,Isheateacher?Heisntateacher.,DoesKangkangcomefromChina?KangkangdoesntcomefromChina.,Doyouusuallytakethebustowork?Idontusuallytakethebustowork.,句型变化操练,4.Theyarehavingclasses.,5.Janeplayedtheguitarlastnight.,Aretheyhavingclasses?Theyarenthavingclasses.,DidJaneplaytheguitarlastnight?Janedidntplaytheguitarlastnight.,句型变化操练,改一般疑问句的方法：,首先看有无be动词，如果有，将be提到句首并大写，句末打问号.如果没有be动词，看原句的动词形式来决定借用助动词do/does/did,并且行为动词要还原。,V-原形V-s/esV-ed(过去式),+动词原形?,改否定句的方法：,以此类推,首先看有无be动词，如果有，在be动词后面加not.如果没有be动词，看原句的动词形式来决定借用助动词do/does/did,并在后面加not,并且行为动词要还原。,主语+dont/doesnt/didnt+动词原形,表格对比学习,be+v-ing(现在分词）,在be后加上not,Be提到句首,V-原形V-三人单,在实义v.前借do,does后加not，动词还原,Do,Does提句首，+动原,V-ed(过去式）,在实义v.前借用did后加not，+动原,Did提到句首，实义动词还原,Completethesentences.王先生是我们的英语老师。1.MrWang_(be)ourEnglishteacher.2.MrWang_(notbe)ourEnglishteacher.3._(be)MrWangourEnglishteacher?4.Yes,_.No,_.,is,isnot/isnt,Is,heis,heisnt,一般现在时,写出下列动词第三人称单数形式1.workworksreadreads2.cleancleanswritewrites3.teachteacheswashwashes4.guessguesseswatchwatches5.gogoesdodoes6.studystudiesflyflies7.crycriesplayplays8.havehas,动词第三人称单数,动词-ing形式的构成：,writingtaking,gettingrunningswimming,asking,动词过去式练习,动词过去式的构成,规则动词,不规则动词,规则动词过去式的构成,构成规则,例词,一般在动词末尾加edlooklookedplayplayed结尾是e的动词加-dlivelivedhopehoped,辅音字母+元音+辅音，双写最后的辅音，再加ed,stopstoppedplanplanned,结尾是“辅音+y”的动词，变“y”为“i”再加ed,studystudiedcarrycarried,用所给动词的适当形式填空。,1.Listen!Mary_(sing)now.2.Ayoungman(run)ontheplaygroundnow.3.Mymother_(watch)TVplayeveryday.4.OldBush_(visit)Chinaagainlastmonth.5.I_(play)sportsthreetimesaday.6.Look!LucyandLily_(read)books.7.There_(is)afootballmatchyesterday.8.Ourclass_(go)tothezoothreedaysago.,issinging,isrunning,watches,visited,play,arereading,was,went,时态大比拼1、Shegotupatsevenoclockyesterday.（用now改写）Sheisgettingupnow.2、（用everyday改写）Shegetsupatsevenoclockeveryday.,时态大比拼,时态大比拼,Tomcleanshisroomonweekends.（用twohoursago改写）Tomcleanedhisroomtwohoursago.,1、Iusuallywashmyclothesintheafternoon.(用now改写)Iamwashingmyclothesnow.2、(用lastweekend改写)Iwashedmyclotheslastweekend.,选择填空1、Mymotheroftenoranges.AeatB.eatsC.eating2.Myauntsometimesverywell.A.singB.singsC.singing3.Theyusuallyemailstotheirfriends.A.sendB.sendsC.sending4.Hedoesnt_hishomeworkatschool.A.doB.isdoingC.does5.LilyandLucy_fromAmerica.A.isB.areC.am6.thetigersalways_inChina?A.Does;liveB.Does;livesC.Do;live7.PeopleSpringFestivaleveryyear.A.celebratesB.celebrateC.celebrating,B