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时间:2020-04-07
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1、规则动词的过去式变化如下: 1、一般情况下,动词词尾加-ed,如: work---workedplay---playedwanted----wantedact----acted 2、以不发音的-e结尾动词,动词词尾加-d,如: live---livedmove----movedtaste---tastedhope---hoped 3、以辅音字母+y结尾的动词,把-y变为-i再加-ed,如: study---studiedcopy---copiedcry---criedcarry---carried 4、以一个辅音字母结尾的重读闭音节动词,双写词
2、尾辅音字母,再加-ed,如: stop---stopped 5、不规则动词的过去式变化规律性不强,须多加记忆。 go–wentmake–madeget–gotbuy-boughtcome-camefly-flew 不规则动词的过去式的构成 1.把动词原形中的i改为a,变成过去式。如: begin—began,drink—drank,give—gave,ring—rang,sing—sang,sit—sat,swim—swam 2.把重读开音节中的i改为o,变成过去式。如: drive—drove,ride—rode,write—wrote 3.
3、改动词原形中的aw/ow为ew,变成过去式。如: draw—drew,grow—grew,know—knew,throw—threw(动词show除外,show—showed) 4.动词原形中的e改为o,变成过去式。如: get—got,forget—forgot 5.动词原形中的ee改为e,变成过去式。如: feed—fed,meet—met 6.动词原形中的eep改为ept,变成过去式。如: keep—kept,sleep—slept,sweep—swept 7.动词原形中的eak改为oke,变成过去式。如: break—broke,spe
4、ak—spoke 8.动词原形中的ell改为old,变成过去式。如: sell—sold,tell—told 9.动词原形中的an改为oo,变成过去式。如: stand—stood,understand—understood 10.以ought和aught结尾,且读音是〔:t〕的过去式。如: bring—brought,buy—bought,think—thought,catch—caught,teach—taught 11.以ould结尾且读音为〔ud〕的情态动词过去式。如: can—could,shall—should,will—would
5、 12.把动词原形中的o改为a,变成过去式。如: come—came,become—became 13.在动词原形后加d或t变成过去式,并且发生音变。如: hear〔hi〕—heard〔h:d〕,say〔sei〕—said〔sed〕,mean〔mi:n〕—meant〔ment〕 14.动词的过去式与动词原形一样。如: let—let,must—must,put—put,read—read〔red〕 15.不符合上述规律的动词过去式。如: am,is—was,are—were,build—built,do—did,eat—ate,fall—fel
6、l,feel—felt,find—found,fly—flew,go—went,have/has—had,hold—held,leave—left,make—made,may—might,run—ran,see—saw,take—took 过去式“-ed”的发音规则 (1)动词词尾为“t,d”时,发/id/音, want→wanted(要)need→needed(需要) (2)动词词尾为清辅音时,发/t/音。 help→helped(帮助)laugh→laughed(笑)look→looked(看) kiss→kissed(吻)wash→was
7、hed(洗)watch→watched(注视) (3)动词词尾为t,d以外之浊辅音或元音时,发/d/音。 call→called(叫)stay→stayed(停留)cry→cried(哭)
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