一 般 过 去 时 (一)动词过去式的构成: (1)规则变化: 构 成 规 则 在词尾加ed 以字母e结尾的词直接加d 重读闭音节的词先双写尾字母,然后加ed 以“辅音字母+y”结尾的词先改y为i,再加ed (2)不规则变化: ①过去式不改变:这一类不规则变化的动词都是以-t或者以-d结尾的。 cost—cost cut—cut hit—hit hurt—hurt let—let put—put read—read ②有字母组合-ee或者-ll的动词。省略原形动词中两个相同的字母中的其中一个,然后在词尾叫-t。 keep—kept sleep—slept sweep—swept feel—felt smell—smelt spell—spelt ③ 以字母-d或者-t结尾、中间的字母组合多数是-ee或者-oo的动词,省略原形动词中两个相同字母中的其中一个。 meet—met shoot—shot ④ 把原形动词的最后一个字母-d改成-t。 send—sent lend—lent rend—rent spend—spent build—built ⑤动词原形中有-ow,-aw这些字母组合的,过去式中把这些组合改成-ew。 blow—blew grow—grew know—knew throw—threw draw—drew ⑥动词原形中有字母组合-in(m)或者-ing或者-ink,过去式中把字母-i变成-a。 begin—began sing—sang ring—rang drink—drank swim—swam ⑦不规则动词以-m,-n结尾的,过去式在原形动词词尾加-t或者-d。 mean—meant learn—learnt dream—dream hear—heard ⑧过去式有-ought, -aught的。 think—thought buy—bought bring—brought teach—taught catch—caught ⑨动词原形是以元音字母-i加辅音字母加不发音的-e结尾的,一般是在过去式中将字母i改成-o。 ride—rode write—wrote drive—drove ⑩动词原形中有-ea或者-ee或者-oo的字母组合的不规则动词,动词过去式是将这个字母组合改成-o,然后在词尾加-e。 break—broke speak—spoke choose—chose (11).动词原形中有字母组合-ay的,过去式改成-aid。 say—said pay—paid 原 形 walk,help, watch live, hope, exercise, plan, stop study, worry, 过 去 式 walked, helped, watched lived, hoped, exercised, planned, stopped studied, worried, (二)一般过去时的各种句式: 肯定句:主语+动词过去式+其他. I watched TV at home last night. 否定句:主语+didn’t+动词原形+其他. I didn’t watch TV at home last night. 一般疑问句:Did+主语+动词原形+其他? Did you watch TV at home last night? →Yes, I did. / No, I didn’t. 殊疑问句:特殊疑问词+did+主语+动词原形+其他? What did you do at home last night? (三)常见的标志词:just now, a moment ago, last week/night/month/year, yesterday, the day before yesterday… 本文来源:https://www.wddqw.com/doc/10097918302b3169a45177232f60ddccdb38e676.html