动词过去式变化与ed的发音规则.ppt

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、规则变化1、一般情况下,动词词尾加-ed,如:work—workedplay—playedwant—wantedask—asked2、以不发音的-e结尾动词,动词词尾加-d,如:live—livedmove—movedtaste—tasted3、以“辅音字母+y”结尾的动词,把y改成i,加—ed,如:study—studiestry—triedcopy—copiedcarry—carried4、重读闭音节动词,双写词尾辅音字母,再加—ed,如:stop—stopped二、不规则变化isam—wasare—weredo—didhavehas—hadgo—wentsit—satsing—sangdrink—drankgive—gavewrite—wroteride—rodedrive—drovedraw—drewgrow—grewknow—knewget—et—forgotkeep—keptsleep—sleptcan—couldshall—shouldwill—would过去式与动词原形一样:let—letmust—mustput—putread—read什么是清辅音和浊辅音??。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。;、不送气的叫浊辅音,b/b/、d/d/、g/g/、v/v/、the/ð/、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。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动词过去式构成读音知识回顾KnowledgeReview祝您成功!