动词过去式变化规则.ppt

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：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动词过去式变化二、不规则变化isam—was，are—were，do—did，havehas—had，go—went，meet—met，come—came，take—took，eat—ate，fly—flew，run—ran，see—saw，say—said，make—made，find—found，stand—stood，sit—sat，sing—sang，drink—drank，give—gave，swim—swam，write—wrote，ride—rode，drive—drove，draw—drew，grow—grew，know—knew，get—got，forget—forgot，sweep—swept，keep—kept，sleep—slept，speak—spoke，break—broke，tell—told，sell—sold，buy—bought，think—thought，catch—caught，teach—taught，build—built，can—could，shall—should，will—would过去式与动词原形一样：let—let，must—must，put—put，read—read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：jumplike2、浊辅音后读浊辅音[d]（浊读浊）如：listenpull3、元音后面读浊辅音[d]（元音后面读浊音）如：waterplay4、[t][d]后面读[id]如：wantneed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/didwaswentread