动词过去式变化规则.ppt课件

单击此处编辑母版标题样式,单击此处编辑母版文本样式,第二级,第三级,第四级,第五级,*,*,*,动词过去式变化,一、规则变化1、一般情况下，动词词尾加-ed,如：workworked playplayed wantwanted askasked2、以不发音的-e结尾动词，动词词尾加-d,如：livelived movemoved tastetasted3、以“辅音字母+y”结尾的动词，把y改成i,加ed,如：studystudies trytried copycopied carrycarried 4、重读闭音节动词，双写词尾辅音字母，再加ed,如：stopstopped,动词过去式变化,二、不规则变化,is amwas，arewere，dodid，have hashad，,gowent，,meetmet，comecame，taketook，,eatate，flyflew，runran，seesaw，saysaid，makemade，findfound，standstood，sitsat，,singsang，drinkdrank，givegave，swimswam，writewrote，riderode，drivedrove，drawdrew，growgrew，knowknew，getgot，forgetforgot，sweepswept，keepkept，sleepslept，speakspoke，breakbroke，telltold，sellsold，buybought，,thinkthought，catchcaught，teachtaught，,buildbuilt，,cancould，,shallshould，,willwould,过去式与动词原形一样：,letlet，mustmust，putput，readread,动词过去式变化,三、动词过去式构成读音1、清辅音后读清辅音t（清读清）,如：jump like 2、浊辅音后读浊辅音d（浊读浊）,如：listen pull3、元音后面读浊辅音d（元音后面读浊音）,如：water play 4、td后面读id,如：want need,规则动词,不规则动词,do,is/am,go,read,play,clean,listen,climb,water,visit ,wash,watch,cook,play,ed,/,d,/,clean,ed,/,d,/,listen,ed,/,d,/,climb,ed,/,d,/,water,ed,/,d,/,visit,ed,/,id,/,wash,ed,/,t,/,watch,ed,/,d,/,cook,ed,/,t,/,did,was,went,read,