过去式变化方法：1．直接加 ed，如：work—— worked look——looked2．以不发音 e 结尾的单词，直接加 d，如：live ——lived hope——hoped use——used3．以辅音字母+y 结尾的，变 y 为 i 加 ed，如：study—— studied carry——carried worry——worried4．以重读闭音节结尾的，双写最后的辅音字母+ed，如：stop—— stopped plan——planned 重读闭音节体现形式为辅-元-辅结构，例如 nod,n 为辅音，o 为元音，d 为辅音。5. 以ic结 尾 的 动 词 ， 要 把ic变 成ick再 加ed ， 如 ：picnic→picnicked，traffic→trafficked6．不规则变化的动词过去式：have---had are---were get---got say---said feel---felt do/does---did is---was go---wentdrink--drank eat--ate bring----brought think----thought buy----bought catch---- caught teach ---- taught sit----sat wear----wore cut----cut sweep----swept sleep——slept see----saw become----became sell---sold win---wonshine---shone build---built stand---stood understand---understood smell---smelt say-said pay---pad send---sent lend---lent(详见:不规则动词)7 以辅元辅结尾的加 d英语动词按其过去式和过去分词的构成方式可分为规则动词和不规则动词。规则动词的过去式和过去分词由词尾加-ed 构成，假如有 e，只加 d，而不规则动词的变化因词而异。初中不规则动词部分过去式表1)am/is --- was 是（单）2)are --- were 是（复）3)babysit --- babysat临 时 照顾4)bear --- bore出生5)beat --- beat打败6)become --- became 成为7)begin --- began 开始8)break --- broke破坏9)bring --- brought 带来10) build --- built 修建11) buy --- bought 买12) can --- could 能够13) catch --- caught抓住14) come --- came 来15) cost --- cost支付16) cut --- cut 剪17) do/does --- did 做18) draw --- drew 画画19) drink --- drank 喝20) drink --- drove驾驶21) eat --- ate 吃22) fall --- fell落下23) feed --- fed喂养24) feel --- felt 感觉25) fight --- fought 打架26) find --- found 找到27) fly --- flew飞28) forget --- forgot 忘记29) freeze --- froze结冰30) get --- g...
