动词过去式变化规则ppt课件.ppt

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1、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，m

2、eetmet，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，thin

3、kthought，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,played/d/,cleaned/d/,listened/d/,climbed/d/,watered/d/,visited/id/,washed/t/,watched/d/,cooked/t/,did,was,went,read,