英语动词过去式和过去分词的变化规则

动词过去式和过去分词的变化规则动词过去式和过去分词有规则变化和不规则变化两种。一.规则变化1.一般情况直接加ed，如ask—asked,work—worked2.以不发音的e结尾，只加d，如love—loved,dance—danced3.以辅音字母加y结尾，把y变为i，再加ed，如try—tried,study—studied4.以一个元音字母和一个辅音结尾的重读闭音节结尾的动词(以重读闭音节或r音节结尾而末尾只有一个辅音字母)，先双写末尾这个辅音字母，再加ed，如clap/shop/trip/chat/beg/drop/fit/hug/plan/pat/regret/control注：A.以l结尾的动词，尾音节重读时，双写l，如control—controlled；尾音节不重读时，双不双写都可以，如travel—traveled(美)/travelled(英)。B.读音与说明:①-ed在清辅音音素后发音为[t]:helped,liked,finished,fetched,stopped,clapped②-ed在浊辅音和元音后发音为[d]:believed,changed,planned,preferred,followed,stayed③-ed在[t]、[d]后发音为[id]:wanted,needed,admitted,permitted二.不规则变化英语中有些动词的过去式和过去分词形式变化不规则，可主要分为几种情况。【AAA型】：put—put—putcut—cut—cutshut—shut—shutset—set—sethit—hit—hithurt—hurt—hurtcost—cost—cost★read/ri:d/—read/red/—read/red/let—let—letburst—burst—burst（n./v.爆发，突发；爆炸）cast—cast—cast（v.1.投,掷,抛,扔,撒2.投射(光、影、视线等)[(+at/on)]3.脱落;蜕(皮);丢）rid—rid—rid（vt.使摆脱；使去掉）spread—spread—spread【ABB型】：(原形→aught/ought→aught/ought)catchcaughtcaughtteachtaughttaughtbringbroughtbroughtbuyboughtboughtthinkthoughtthought【原形→元音变化→元音变化】sitsatsatmeetmetmetfindfoundfoundgetgotgotstandstoodstoodunderstandunderstoodunderstoodwinwonwonholdheldheldshineshoneshonedigdugdughanghung/hangedhung/hanged【原形→“…t”→“…t”】loselostlostbuildbuiltbuiltspillspiltspiltspoilspoiltspoiltsendsentsentspendspentspentsmellsmeltsmeltfeelfeltfeltmeanmeantmeantlearnlearnt/learnedlearnt/learnedlendlentlent【原形→“…d”→“…d”】hearheardheardmakemademadehave(has)hadhadpaypaidpaidsaysaidsaidlaylaidlaidsellsoldsoldtelltoldtold【“ee/ea”→“e..t”→“e..t”】sleepsleptsleptsweepsweptsweptkeepkeptkeptleaveleftleft【ABC型】：【原形→变形→原形+en/ne】be(am,is)wasbeenbe(are)werebeenseesawseendodiddonegowentgonebeatbeatbeateneatateeatengivegavegivenhidehidhiddenfallfellfallenmistakemistookmistakentaketooktakendrivedrovedrivenriseroserisenrideroderiddenwritewrotewritten【原形→“-o-”→“过去式-n”】breakbrokebrokenspeakspokespokenchoosechosechosenforgetforgotforgottenfreezefrozefrozenwakewoke/wakedwoken/waked(原形→“ew”→“原形-n”)drawdrewdrawnblowblewblownshowshowedshown*flyflewflowngrowgrewgrownthrowthrewthrownknowknewknown【原形→“-a-”→“-u-”】beginbeganbegunringrangrungdrinkdrankdrunksingsangsungsinksank/sunksunk/sunkenswimswamswum【原形-ear→“-ore”→“-orn”】wearworewornteartoretornbearboreborn【原形-ake→“-ook”→“-aken”】taketooktakenshakeshookshakenmiatakemistookmistaken【原形-i辅e→“-o辅e”→“-i辅(辅)e”】drivedrovedrivenrideroderidenriseroserisenwritewrotewrittenstrive(v.努力)strovestriven【ABA型】becomebecamebecomecomecamecomerunranrunovercomeovercameovercome【AB型】(无过去分词)maymightmustmustcancouldshallshouldwillwould