1、不規則動詞過去式和過去分詞A.原形與過去式和過去分詞完全相同.cost-cost-cost cutcutcut putput-put letletlet setsetset hithithit、士 +shut-shut-shut hurt-hurt-hurt read-read-read /e/ lie-lied-lied 說謊 lay-laid-laid 放置，下蛋lay- lain躺下,位于，平放eg. The hens don t eggs during such cold weather.She her books on the table.B.過去式與過去分詞完全相同.過去式和過去分

2、詞中含有 ought, aught,讀音是:tbrightbrought-brought think-thoughtthought buyboughtboughtcatchcaughtcaught teach taught taught.動詞原形中的e為o,變成過去式和過去分詞.getgotgot sellsoldsold telltoldtold.司IMJTh中 i 為 a,sitsatsat spitspatspat.動詞原形中 i 為 o,win-won-won shine-shone/ shined-shone / shined.動詞原形中 an 為 oo,stand-stood-st

3、ood understand-understood-understood.動詞原形中的 ay 為 ai,say-said-said pay-paid-paid. a) 動詞原形中的 d 為 t,send-sent-sent lend-lent-lentspend-spent-spent build-built-builtb )動詞原形最后一個字母改為t ,smell-smelt-smelt lose-lost-lostc ) 動詞原形后加一個字母 t, learn-learnt-learnt mean-meant-meant 讀首/e/d ）動詞原形中的ee去掉一個字母e,然后在詞尾加t.字母

4、e發音 /e/feel-felt-felt sleep-slept-slept sweep-swept-swept keep- keptkept其它 meetmet-met havehad-had holdheld-held makemade-made digdug-dug hear-heard-heard findfoundfoundhanghung hungC.原型與過去分詞相同comecame-come runranrun become-became becomeD.原形,過去式，和過去分詞完全不同.把動詞原形中i改為a變成過去式，改成u變成過去分詞.begin - began begu

5、n drink-drankdrunk ring-rangrungswim-swam-swum singsang-sung.把動詞原形中。改為e變成過去式，在原形詞尾加n變成過去分詞.blow-blew-blown grow-grew-grown know-knew- knownthrow - threw - thrown fly -flew /flu:/ -flown （和以上相似）.以下動詞的過去分詞都以en結尾,故把它們分為一類.a ）把動詞原形中i改為o變成過去式，在詞尾加n變成過去分詞.drive-drove-driven rise-rose-risen write-wrote-wri

6、tten（雙寫t ）ride-rode-ridden （ 雙寫 d ）b ）把動詞原形中ea改為o,在詞尾加e變成過去式，在過去式后加n 變成過去分詞.speak-spoke-spoken steal-stole-stolen break-broke- brokenc）把動詞原形中的個別字母或字母組合改為o變成過去式，在過去式后加n變成過去分詞.wake-woke-wokenchoosechosechosenfreezefroze-frozenforget-forgot-forgotten（雙寫t,加 en )d)其它過去分詞以en結尾的動詞eatateeaten beat beat beat

7、en fallfellfallen give-gavegiven seesawseen taketooktaken mistake- mistook mistaken hide-hid-hidden（雙:E.沒有過去分詞的動詞cancould may- might shall- should will -would 一dodid-其它am, is was been arewere been -donedrawdrewdrawn / : / gowentgone showshowedshownwearwore worn不規則動詞的過去式不規則動詞的過去式是同學們學習的重點，也是一個難點.同學們應

8、通過不規則動詞的動詞原形和它們的過去式找出其變化規律，總結如 下:.把動詞原形中的o改為a,變成過去式.過去分詞不變.如：become became, come came.把動詞原形中的i改為a,變成過去式.如：beginbegan,drink drank,give gave,ring rang,sing sang,sit sat,swim swam ,sink sank,.把重讀開音節中的i改為o,變成過去式.如:drive drove,ride rode,shine shone,win won,write wrote.動詞原形中的e改為o,變成過去式.如：getgot,forget for

9、got.動詞原形中的eep改為ept,變成過去式.如: keepkept,sleep slept,sweep swept.動詞原形中的an改為oo,變成過去式.如：stand -stood,understand understood.改動詞原形中的aw /ow為ew,變成過去式.如：drawdrew,grow grew,know knew,throw threw （動詞 show 除外,show showed）.動詞原形中的eak改為oke,變成過去式.如：break-broke,speak spoke.動詞原形中的ell改為old,變成過去式.如：sellsold,tell -told.以o

10、ught和aught結尾，且讀音是:t的過去式.如：bring -brought,buy bought,think thought,catch caught,teach 一 taught.以ould結尾且讀音為ud的情態動詞過去式.如：cancould,shall should,will would.在動詞原形后加d或t變成過去式，并且發生音變.如：hear hi heard h :d , say sei said sedmean mi:n meant ment , dream dreamt dremt.動詞的過去式與動詞原形一樣.如：cutcut, hit hit, hurt hurt, let let,must must, putput,read read red ,set set.動詞的過去式有兩種形式.如：dream dreamed/ dreamt learn learnt/ learned shine shone/ shinedsmell smelt/ smelled wake woke/ waked _.不符合上述規律的動詞過去式.如：am,iswas,are were,build built,do did,eat ate,fall fell, feelfelt,find found,