Unit7-What-did-you-do--yesterday过去式规则ppt课件.ppt

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1、Unit7Whatdidyoudoyesterday?一、写出下列词的过去式。cleancleanedplayedseedoplaydidcomecamesawworkworkedcookcookedhelphelpedcleancleanedopenopenedplayplayedwantwantedvisitvisitedcollectcollectedloveloveddancedancedlivelivedtrytriedcrycriedstudystudieddodidseesawcomecame规则动词过去式规则1、一般在动词原形末尾加–edwork---workedc

2、ook---cookedhelp---helpedplay---played2、结尾是e的动词只加--dlive---livedlove---loveddance---danced4、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—edstop---stoppedplan---plannedtrip---tripped3、结尾是“辅音字母+y”的词，先变“y”为“i”再加—edstudy---studiedtry---triedcry---cried1.过去式与原形一样：让let→let（你）放put→put(下）砍,剪cut→cut(刀）来读书read→read,（

3、以免）受伤hurt→hurt,花钱cost→cost跑run→ran过来come→came坐下sit→sat，给give→gave（杯）喝drink→drank（的），开始begin→began唱歌sing→sang游泳swim→swam2.变元音字母为a:3.中间去e末尾加t：sleep→slept睡觉sweep→swept拖地keep→kept保持feel→felt感觉不规则动词表2.ride→rode骑(车)3.drive→drove开(车)”1.写write→wrote4.把i变成o5想think→thought，买buy→bought6“抓”catch→caught“教学

4、”teach→taught7.ow/aw改为ew建造build→built，花钱/时间spend→spent借给别人lend→lent，寄send→sent（装备）ought带着bring→brought，打仗fight→fought——aught是关键知道know→knew，长大grow→grew，扔throw→threw，画画draw→drew8结尾d变t：begandrankgavesangswamsat字母“i”变成“a”开始喝给唱歌坐游泳begindrinkgiveSingSwimsitflyflew2、画drawdrewblowblew4、种植growgrewthrow

5、threw6、知道knowknew三、字母“ew”结尾1、飞3、吹5、扔1、感觉feelfelt2、保持keepkept3、睡觉sleepslept4、扫地sweepswept四、字母“pt”结尾1、买buybought2、想thinkthought1、抓catchcaught4、教teachtaught六、字母“aught”结尾五、字母“ought”结尾清念/t/,元浊/d/;/t//d/之后念/id/规则动词-ed的读音说明：1、清念/t/，即ed在清辅音后面念/t/,例：finishedhelpedpassedcooked2、元浊/d/,即ed在元音，浊辅音后面念/d/,例：

6、borrowedenjoyedcalledmoved3、/t//d/之后念/id/,即ed在/t//d/音后面念/id/例：wantedshoutedneededcounted说明：1、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动词过去式转换练习将下列动词变为过去式返回上页订正答案1.look2.live3.

7、stop4.carry5.hope6.trip7.call8.finish9.want10.are11.go12.have13.do14.get15.come16.say17.see18.put19.eat20.take21.read返回上页返回首页返回练习动词过去式转换练习答案1.looklooked2.livelived3.stopstopped4.carrycarried5.hopehoped6.triptripped7.callcalled8.finishfi