1、cheap--cheaper2、tall--taller3、short--shorter4、small--smaller5、old--older6、cold--colder7、cool--cooler8、new--newer9、long--longer10、strong--stronger11、warm--warmer12、fast--faster13、quiet--quieter14、dark--darker15、bright--brighter16、clean--cleaner17、young--younger18、weak--weaker19、thick--thicker20、quick--quickereasyeasiereasiestlazylazierlaziestprettyprettierprettiestnaughtynaughtiernaughtiestmealymealiermealiestearlyearlierearliestthirstythirstierthirstiestDull-duller--dullestLoud-louder--loudestBoring-moreboring-mostboringCreative-morecreative-mostcreativeWarm---warmer--warmestExpensive-moreexpensive-mostexpensivehigh,higher,highestlarge,larger,largestwet,wetter,wettestbusy,busier,busiestdelicious,moredelicious,mostdeliciousheavy,heavier,heaviestdry,drier,driest不规则形容词比较等级的形式变化good-better-best好的well-better-best身体好的bad-worse-worst坏的ill-worse-worst病的many-more-most许多much-more-most许多few-less-least少数几个little-less-least少数一点儿(little-littler-littlest小的)far-further-furthest远(指更进一步,深度。亦可指更远)far-farther-farthest远(指更远,路程)old-older-oldest年老的(指年纪)old-elder-eldest年老的(指兄弟姐妹的排行)过去式/过去分词A.原形与过去式和过去分词完全相同.cost----cost----costcut----cut----cutput----put----putlet----let----letset----set----sethit----hit----hitshut----shut----shuthurt---hurt----hurtread---read----read读音/e/lie---lied---lied说谎lay---laid---laid放置,下蛋lay---lain躺下,位于,平放eg.Thehensdon’t_______eggsduringsuchcoldweather.She_____herbooksonthetable.____B.过去式与过去分词完全相同1.过去式和过去分词中含有ought,aught,读音是〔:t〕bright----brought----broughtthink----thought----thoughtbuy----bought----boughtcatch----caught----caughtteach----taught----taught2.动词原形中的e为o,变成过去式和过去分词。get----got----gotsell----sold----soldtell----told----told3.动词原形中i为a,…sit----sat----satspit----spat----spat4.动词原形中i为o,…win----won----wonshine----shone/shined----shone/shined5.动词原形中an为oo,…stand----stood---stoodunderstand----understood----understood6.动词原形中的ay为ai,…say----said----saidpay----paid----paid7.a)动词原形中的d为t,…send----sent----sentlend----lent----lentspend----spent----spentbuild----built----builtb)动词原形最后一个字母改为t,…smell----smelt----smeltlose----lost----lostc)动词原形后加一个字母t,…learn----learnt----learntmean----meant----meant读音/e/d)动词原形中的ee去掉一个字母e,然后在词尾加t.字母e发音/e/feel----felt----feltsleep----slept----sleptsweep---swept----sweptkeep----kept-----kept其它meet----met----methave----had----hadhold----held----heldmake----made----madedig----dug----dughear----heard----heardfind----found----foundhang----hung----hungC.原型与过去分词相同come----came----comerun----ran----runbecome----became----becomeD.原形,过去式,和过去分词完全不同1.把动词原形中i改为a变成过去式,改成u变成过去分词.begin----began-----begundrink---drank----drunkring----rang-----rungswim----swam----swumsing----sang----sung2.把动词原形中o改为e变成过去式,在原形词尾加n变成过去分词.blow----blew----blowngrow----grew----grownknow---knew---knownthrow----threw----thrownfly----flew/flu:/----flown(和以上相似)3.以下动词的过去分词都以en结尾,故把它们分为一类.a)把动词原形中i改为o变成过去式,在词尾加n变成过去分词.drive----drove----drivenrise---rose---risenwrite---wrote---written(双写t)ride----rode----ridden(双写d)b)把动词原形中ea改为o,在词尾加e变成过去式,在过去式后加n变成过去分词.speak----spoke----spokensteal----stole----stolenbreak----broke----brokenc)把动词原形中的个别字母或字母组合改为o变成过去式,在过去式后加n变成过去分词.wake----woke----wokenfreeze----froze----frozenchoose----chose----chosenforget----forgot----forgotten(双写t,加en)d)其它过去分词以en结尾的动词eat----ate----eatenbeat----beat----beatenfall----fell----fallengive----gave----givensee----saw----seentake----took----takenmistake----mistook-----mistakenhide----hid----hidden(双写d)E.没有过去分词的动词can-----could-may----might-shall----should-will----would-其它am,is----was-----beenare-----were-----beendo-----did-----donedraw-----drew-----drawn/:/go-----went-----goneshow----showed----shownwear---wore----worn1.把动词原形中的o改为a,变成过去式。过去分词不变.如:become-became,come-came2.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,sink-sank,3.把重读开音节中的i改为o,变成过去式。如:drive-drove,ride-rode,shine-shone,win-won,write-wrote4.动词原形中的e改为o,变成过去式。如:get-got,forget-forgot5.动词原形中的eep改为ept,变成过去式。如:keep-kept,sleep-slept,sweep-swept6.动词原形中的an改为oo,变成过去式。如:stand-stood,understand-understood7.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)8.动词原形中的eak改为oke,变成过去式。如:break-broke,speak-spoke9.动词原形中的ell改为old,变成过去式。如:sell-sold,tell-told10.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-taught11.以ould结尾且读音为〔ud〕的情态动词过去式。如:can-could,shall-should,will-would12.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〕,dream-dreamt〔dremt〕13.动词的过去式与动词原形一样。如:cut-cut,hit-hit,hurt-hurt,let-let,must-must,put-put,read-read〔red〕,set-set14.动词的过去式有两种形式。如:dream-dreamed/dreamtlearn-learnt/learnedshine-shone/shinedsmell-smelt/smelledwake-woke/waked15.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-fell,feel-felt,find-found,fly-flew,go-went,have/has-had,hide-hid,hold-held,lay-laid,leave-left,lie-lay,lose-lost,make-made,may-might,run-ran,see-saw,smell-smelt,take-took,wake-woke,wear-wore常用单词中这些是不规则变化,其他基本都是规则变化。