动词过去式变化及ed的发音规则课件.pptxVIP

动词过去式变化规则及ed的发音规则

动词过去式变化规则一、化1、一般情况下，尾加-ed,如：work—workedplay—playedwant—wantedask—asked2、以不音的-e尾，尾加-d,如：live—livedmove—movedtaste—tasted3、以“音字母+y”尾的，把y改成i,加—ed,如：study—studiestry—triedcopy—copiedcarry—carried4、重音，双写尾音字母，再加—ed,如：stop—stopped

?二、不规则变化?isam—wasare—weredo—didhavehas—hadgo—wentsit—satsing—sangdrink—drankgive—gave?write—wroteride—rodedrive—drove?draw—drewgrow—grewknow—knew?get—gotforget—forgot?keep—keptsleep—slept?can—couldshall—shouldwill—would?过去式与动词原形一样：let—letmust—mustput—putread—read

1.辅音包括清辅音和浊辅音两大类。发音时声带不震动、送气的叫清辅音,p／p／、t／t／、k／k／、f／f／、th／θ／、s／s／、sh／∫／、ch／t∫／、c／ts／、tr／tr／，再加上h／h／，合计12个。；2.发音时声带震动、不送气的叫浊辅音,b／b／、d／d／、g／g／、v／v／、the／e／、z／z／、ds／dz／、dr／dr／r/r/再加鼻音m／m／、n／n／ing边音l／l／半元音j／j／、w／w／合计16个。什么是清辅音和浊辅音？？

动词过去式构成读音1、清辅音后读清辅音ed[t]（清读清）如：jumpedliked

动词过去式构成读音2、浊辅音后读浊辅音[d]（浊读浊）如：listenpull

动词过去式构成读音2、浊辅音后读浊辅音[d]（浊读浊）如：listenedpulled3、元音后面读浊辅音[d]（元音后面读浊音）如：wateredplayed

动词过去式构成读音4、[t][d]后面读[id]wantedneeded