1. 英语单词的过去式变化 规则动词的过去式由“动词原形+-ed”构成 , 具体变化有: 1. 直接在词尾加-ed.如: want—wanted, work—worked, need—needed, clean—cleaned 2. 以不发音的e结尾的在词尾加-d.如:like—liked, live—lived, use—used, move—moved 3. 以一个元音字母加一个辅音字母结尾的重读闭音节动词 , 先双写结尾的辅音字母 , 再加-ed.如:stop—stopped, trip—tripped 4. 以辅音字母加y结尾的动词 , 先把y变成i , 再加-ed.如:study—studied, carry—carried, hurry—hurried, marry—married 不规则动词的过去式见课本后的不规则动词表.大体上归纳有以下六条记忆法: 1. 以t结尾的词 , 过去式与原形相同.如:put—put, let—let, cut—cut, beat—beat 2. 以d结尾的词 , 把d变成t.如:build—built, lend—lent, send—sent, spend—spent 3. 以n结尾的词 , 在词后加t.如:mean—meant, burn—burnt, learn—learnt 4. 以ow / aw结尾的词 , 把ow / aw变成ew.如:blow—blew, draw—drew, know—knew, grow—grew 5. 含有双写字母的词 , 将双写改为单写 , 在词尾加t.如:keep—kept, sleep—slept, feel—felt, smell—smelt 6. 含有元音字母o / i的词 , 将o / i变成a.如:sing—sang, give—gave, sit—sat, drink—drank 。
2. 过去式的单词 不规则动词过去式和过去分词 A. 原型 , 过去式 , 和 过去分词 完全不同 drink---drank----drunk ring----rang-----rung swim----swam----swum sing----sang----sung sink----sank----sunk blow----blew----blown grow----grew----grown know---knew---known fly ----flew----flown take----took----taken shake----shook----shaken drive----drove----driven write---wrote---written rise---rose---risen ride----rode----ridden speak----spoke----spoken steal----stole----stolen break----broke----broken wake----woke----woken freeze----froze----frozen forget----forgot----forgotten choose----chose----chosen draw----drew----drawn eat----ate----eaten fall----fell----fallen give----gave----given hide----hid----hidden see----saw----seen do----did----done B. 过去式与过去分词完全相同 bright----brought----brought think----thought----thought fight----fought----fought buy----bought----bought catch----caught----caught sell----sold----sold tell----told----told say----said----said pay----paid----paid send----sent----sent lend----lent----lent spend----spent----spent burn----burnt----burnt learn----learnt----learnt mean----meant----meant feel----felt----felt smell----smelt----smelt sleep----slept----slept sweep---slept----slept leave----left----left build----built----built lose----lost----lost get----got----got meet----met----met sit----sat----sat shoot----shot----shot lead----led----led spit----spat----spat have----had----had hold----held----held make----made----made stand----stood---stood hear----heard----heard find----found----found dig----dug----dug shine----shone----shone understand----understood----understood win----won----won C.原型与过去分词相同 come----came----come run----ran----run become----became----become D.原形与过去式和过去分词完全相同 cast----cast----cast cut----cut----cut put----put----put let----let----let set----set----set hit----hit----hit shut----shut----shut hang----hung----hung 吊 , 挂 lie---lied---lied 说谎 lie---lay---lain 躺下 , 位于 , 平放 hanged----hanged 处绞刑 lay---laid---laid 置放 。
动词 过去式be (am\ is) wasare werecome camego wentdo (does) did fly flewdraw drewmake madesing sanghave (has) hadeat atedrink drankput putlet letread readcan couldsee sawmeet metget gotforget forgottake tookcan couldmay mightshall shouldwill wouldknow knewbegin beganbend bentbuild builtspend spentmean meantlearn learnt learnedbuy boughtthink thoughtteach taughtcatch caughtsleep sleptsweep sweptkeep keptspeak spokeride rodefeel feltleave leftgive gaverun ranring rangsit satswim swamsay saidstand stoodtell toldthrow threwwin wonwrite wrote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 。
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