初中九年级英语动词的过去时.doc

初中九年级英语动词的过去时不规则动词过去式和过去分词巧记方法 一.原形.过去式和过去分词的词形和读音都相同的单词,结尾字母一般是t或d.如: 　　cut-cut-cut,hit-hit-hit, put-put-put, cost-cost-cost, let-let-let, shut-shut-shut,set-set-set, hurt-hurt-hurt, spread-spread-spread 　　特殊:动词read的过去式和过去分词虽然词形与原形一致,read-read-read,但发音分别是[ri:d]-[red]-[red]. 　　二.有些动词的过去分词与原形是一样的.如: 　　come-came-come,become-became-become, run-ran-run, overcome-overcame-overcome 　　三.有些动词的过去式和过去分词相同.如: 　　1. 把单词结尾的字母d改为t.如: 　　lend-lent-lent,spend-spent-spent, send-sent-sent 　　2. 改变单词中间元音字母.如: 　　sit-sat-sat,win-won-won, shine-shone-shone, hold-held-held 　　3. 以eep结尾的动词,把eep改为ept.如: 　　keep-kept-kept,sleep-slept-slept, sweep-swept-swept 　　4. 过去式和过去分词都以augh或ough结尾的动词.如: 　　buy-bought-bought,fight-fought-fought, think-thought-thought, bring-brought-brought,teach-taught-taught, catch-caught-caught 　　5. 有的以ay结尾的动词,在过去式和过去分词中把ay变成aid.如: 　　say-said-said,lay-laid-laid, pay-paid-paid 　　6. 另有一些其它形式的变化.如: 　 have-had-had,learn-learnt-learnt, leave-left-left, lose-lost-lost, make-made-made,meet-met-met, feel-felt-felt 　　四.有些动词原形中含有字母i,在过去式中变i为a,在过去分词中变i为u.如:　　 　　五.以字母ow或aw结尾的动词,在变成过去式时,通常把元音字母变成e,在变成过去分词时,通常只在词尾加n.如: 　blow- blew- blown,draw-drew-drawn, grow-grew-grown, throw-threw-thrown, know-knew-known 　　六.有些动词的过去分词是在原形词尾加n或en,变成以en结尾的单词.如: 　rise-rose-risen,give-gave-given, take-took-taken, fall-fell-fallen, drive-drove-driven,eat-ate-eaten 　　特殊:write-wrote-written, speak-spoke-spoken, ride-rode-ridden, get-got-gotten。