初中一般过去时学习课件(共18张PPT)(共18张PPT)

IwatchTVIwatchedTVShehaseggsandbreadShehadeggsandbreadJaygivesaconcertJaygaveaconcerteverydaylastnighteverymorningyesterdaymorningeverymonthlastmonth知识结构一般过去时构成用法常用时间动词的过去式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动词过去式的构成规则动词不规则动词构成读音用法构成规则例词1.一般在动词原形末尾加-edlooklookedplayplayedstartstarted2.结尾是e的动词加-dlivelivedhopehopeduseused3.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-edstopstoppedplanplannedtriptripped4.结尾是“辅音字母+y”的动词，先变“y”为“i”再加-edstudystudiedcarrycarried规则动词过去式的构成清念/t/，即ed在清辅音后面念/t/例：finishedhelpedpassedcooked元浊/d/,即ed在元音，浊辅音后面念/d/例：borrowedenjoyedcalledmoved/t//d/之后念/id/,即ed在/t//d/音后面念/id/例：wantedshoutedneededcounted清念/t/,元浊/d/;/t//d/之后念/id/不规则动词表InfinitivePasttenseamiswasarewerebeginbegunbreakbrokebringbroughtbuildbuiltbuyboughtcancouldInfinitivePasttensecatchcaughtcomecamedodiddrawdrewdrinkdrankdrivedroveeatatefallfell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.行为动词一般过去时的否定式一般过去时的否定式是在动词原形前加助动词didnot(didn’t).主语+didn’t+动词原形I_________themthenews.I____(tell)themthenewsyesterday.didn’ttelltold行为动词一般过去时的疑问式一般过去时的一般疑问式在句首加助动词didDid+主语+动词原形……？They______(finish)theirworkatfour.一般疑问句:____they_____theirworkatfour?Yes,they_____.No,they_____.finishedDidfinishdiddidn’t行为动词一般过去时的疑问式一般过去时的特殊疑问式疑问词+did+主语+动词原形……？Theyfinishedtheirworkatfour.AB对划线部分提问Whatdidtheydoatfour?Whendidtheyfinishtheirwork?T注意1.外加助动词did后,动词须返回原形。Didhewenttoschoolyesterday?Didhegotoschoolyesterday?F2.简略回答用助动词did/didn’t代替行为动词。Didhefindtheboyyesterday?－Yes,hedid.－No,hedidnot(didn’t).巧记动词过去时态动词一般过去时，表示过去发生事；be用was或用were,have,has变had；谓语动词过去式，过去时间坐标志；一般动词加-ed，若是特殊得硬记。否定句很简单，主语之后didn’t添；疑问句也不难，did放在主语前；如果谓语之前有did，谓语动词需还原；动词若是was,were,否定就把not添。PRACTISE改写句子：1、Lucydidherhomeworkathome.（改否定句）Lucy______________herhomeworkathome.2、Hefoundsomemeatinthefridge.（变一般疑问句)______he___________meatinthefridge?3、Shestayedthereforaweek.（对划线部分提问）_________________she_____there?4、Therewassomeorangeinthecup.（变一般疑问句)_____there_____orangeinthecup?didn’tdoDidfindanyHowlongdidstayWasanyThat’sgreat√SaturdaySundaymorningwenttothelibrarymorningdidhomeworkafternoonplayedbasketballeveningpracticedEnglishBill’sweekendOnSaturdaymorning,he….巧手变句型1、Lucydidherhomeworkathome.（改否定句）Lucy______________herhomeworkathome.2、HisfatherworkedalldaylastMonday.（改一般疑问句）______hisfather________alldaylastMonday?3、Iwasverybusylastweek.（改否定句和一般疑问句）I________verybusylastweek._____youverybusylastweek?4、Therewassomeorangeinthecup.（变一般疑问句)_____there_____orangeinthecup?didn’tdoThat’sgreat√Didworkwasn’tWereWasanystartaconversationwithRahul?改头换面（句式变化）按要求改写句子。Hefoundabookintheroom.否定：_____________________________一般疑问句：_____________________________特殊疑问句（对abook提问）_____________________________Hedidn’tfindabookintheroom.Didhefindabookintheroom?Whatdidhefindintheroom?