规则变化【过去式的变化规则】① 一般情况下，在动词原形后直接加 ed。女口:wantwanted,playplayed② 以不发音的字母 e 结尾的动词，直接加 d。女:hope——-hoped，live—-—lived③ 重读闭音节单词需双写最后一个辅音字母，再加 ed。女口：stopstopped,preferpreferred④ 以辅音字母+y 结尾的动词变 y 为 i,再加 ed。女：study-——studied，worry———worried⑤ 有些动词不符合上面的规则,需要特殊记忆。女:am（is）-was,are—were,go—went,eat—ate,swim—swam,buy—bought,see—saw,teach—taught,bring—brought,think-thought,fall-fell,hurt—hurt,break—broke,win—won,lose—lost动词过去式变化规则AAA 型（动词原形、过去式、过去分词同形）cost（花费）costcostcut（割）cutcuthit（打）hithithurt 伤害）hurthurtlet（让）letletput（放）putputread（读）readread（2）AAB 型（动词原形与过去式同形）beat（跳动）beatbeaten（3）ABA 型（动词原形与过去分词同形）become（变成）becamebecomecome（来）camecomerun（跑）ranrun(4)ABB 型(过去式与过去分词同形)dig（挖）dugdugget（得到）gotgothang（吊死）hangedhangedhang（悬挂）hunghunghold（抓住）heldheldshine（照耀）shoneshonesit（坐）satsatwin（赢）wonwonmeet（遇见）metmetkeep（保持）keptkeptsleep（睡）sleptsleptsweep（扫）sweptsweptfeel（感觉）feltfeltsmell（闻）smeltsmeltleave（离开）leftleftbuild（建设）builtbuiltlend（借出）lentlentsend（传送）sentsentspend（花费）spentspentlose（丢失）lostlostburn（燃烧）burntburntlearn（学习）learntlearntmean（意思是）meantmeantcatch（抓住）caughtcaughtteach（教）taughttaughtbring（带来）broughtbroughtfight（战斗）foughtfoughtbuy（买）boughtboughtthink（想）thoughtthoughthear（听见）heardheardsell（卖）soldsoldtell（告诉）toldtoldsay（说）saidsaidfind（找到）foundfoundhave/has（有）hadhadmake（制造）mademadestand（站）stoodstoodunderstand 明白 understoodunderstood(5)ABC 型(动词原形、过去式与过去分词三者不同形)begin（开始）beganbegundrink（喝）drankdrunkring（铃响）rangrungsing（唱）sangsungswim（游泳）swamswumblow（吹）blewblowndraw（画）drewdrawnfly（飞）flewflowngrow（生长）grewgrownknow（知道）knewknownthrow（...
