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1、 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askasked, workworked2. 以不发音的e结尾，只加d，如loveloved, dancedanced3. 以辅音字母加y结尾，把y变为i，再加ed，如trytried, studystudied4. 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 / p
2、at / regret / control注：A. 以l结尾的动词，尾音节重读时，双写l，如controlcontrolled；尾音节不重读时，双不双写都可以，如traveltraveled(美) /travelled(英) 。B. 读音与说明:-ed在清辅音音素后发音为t: helped, liked, finished, fetched, stopped, clapped -ed在浊辅音和元音后发音为d: believed, changed, planned, preferred, followed, stayed-ed在t、d 后发音为id: wanted, needed, admitt
3、ed, 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】：putputput cutcutcut shutshutshut setsetset hithithit hurthurthurt costcostcost read/ri:d/read/red/read/red/ letletlet burstburstburst （n. / v. 爆发，突发；爆炸）castcastcast （ v. 1. 投,掷,抛,扔,撒 2. 投射(光、影、视线等)(+at/on) 3. 脱落;蜕(皮);丢）ridridrid （vt. 使摆脱
4、；使去掉） spreadspreadspread 【ABB型】：(原形aught / oughtaught / ought)catch caught caught teach taught taught bring brought brought buy bought bought think thought thought【原形元音变化元音变化】sit sat sat meet met met find found foundget got got stand stood stood understand understood understoodwin won won hold held
5、held shine shone shonedig dug dug hang hung/hanged hung/hanged【原形 “t” “t”】lose lost lost build built built spill spilt spilt spoil spoilt spoiltsend sent sent spend spent spent smell smelt smelt feel felt feltmean meant meant learn learnt/learned learnt/learned lend lent lent【原形 “d” “d”】hear heard h
6、eard make made made have(has) had had pay paid paid say said said lay laid laid sell sold sold tell told told【“ee/ea” “e.t” “e.t”】sleep slept slept sweep swept swept keep kept kept leave left left【ABC型】：【原形变形原形+en/ne】be(am,is) was been be(are) were been see saw seen do did donego went gone beat beat
7、 beaten eat ate eaten give gave givenhide hid hidden fall fell fallen mistake mistook mistakentake took taken drive drove driven rise rose risen ride rode riddenwrite wrote written【原形 “-o-” “过去式-n”】break broke broken speak spoke spoken choose chose chosenforget forgot forgotten freeze froze frozen w
8、ake woke/waked woken/waked(原形 “ew” “原形-n”)draw drew drawn blow blew blown show showed shown *fly flew flowngrow grew grown throw threw thrown know knew known【原形 “-a-” “-u-”】begin began begun ring rang rung drink drank drunk sing sang sungsink sank/sunk sunk/sunken swim swam swum【原形-ear “-ore” “-orn”
9、】wear wore worn tear tore torn bear bore born【原形-ake “-ook” “-aken”】take took taken shake shook shaken miatake mistook mistaken【原形-i辅e “-o辅e” “-i辅(辅)e”】drive drove driven ride rode riden rise rose risen write wrote written strive(v.努力) strove striven【ABA型】become became become come came come run ran runovercome overcame overcome【AB型】(无过去分词)may might must must can could shall should will would