常见动词过去式过去分词变化规则.docx

常见动词过去式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:,如ask—asked,work—,只加d,如love—loved,dance—,把y变为i,再加ed,如try—tried,study—(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stop—stopped,permit—permitted注:,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)。:ic—icked—icked(去野餐),traffic—trafficked—trafficked(交易,在…通行)另外,还有很多动词的过去式和过去分词是不合乎上述规则的,需要熟记.(见后):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、不规则动词(Irregular Verbs)的过去式大体上归纳有以下记忆法: 1. 以t结尾的词,过去式与原形相同。如:put—put, let—let, cut—cut, beat—beat   read—read  must--must 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  throw—threw(动词show除外,show—showed) 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  sweep—swept 6. 含有元音字母o / i的词,将o / i变成a。e—came  e—became  sing—sang, give—gave, sit—sat, drink—,且读音是〔:t〕的过去式。如:bring—brought,buy—bought,think—thought,catch—caught,teach—,变成过去式。如:drive—drove,ride—rode,write—,如:get—got,forget—,如:feed—fed,meet