以ed结尾的单词 |
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1 规则动词词尾加-ed有三种读音 1.1 以清辅音结尾,加-ed 在清辅音后读作[ t ]。如: ask → asked look → looked help → helped watch → watched stop → stopped work → worked pass → passed dance → danced brush → brushed wash → washed laugh → laughed 备注:除了清辅音t 1.2 以元音或浊辅音结尾,加-ed 在浊辅音和元音后读作[ d ]。如: play → played enjoy → enjoyed stay → stayed answer → answered cry → cried study → studied move → moved lives → lived close → closed use → used call → called rain → rained 备注:除了浊辅音d 1.3 以t或d结尾,加-ed 在 t 或 d 后读作[ id ]。如: want → wanted wait → waited need → needed shout → shouted add → added paint → painted
2 动词加-ed的构成形式2.1 规则动词 规则动词的过去式由“动词原形+-ed”构成,具体变化有:(1)直接在词尾加-ed。如: want → wanted work → worked need → needed clean → cleaned(2)以不发音的e结尾的在词尾加-d。如: like → liked live → lived use → used move → moved(3)以一个元音字母加一个辅音字母结尾的重读闭音节动词,先双写结尾的辅音字母,再加-ed。如: stop → stopped trip → tripped(4)以辅音字母加y结尾的动词,先把y变成i,再加-ed。如: study → studied carry → carried hurry → hurried cry → cried 2.2 不规则动词 不规则动词的过去式见课本后的不规则动词表。大体上归纳有以下六条记忆法:(1)以t结尾的词,过去式与原形相同。如: put → put let → let cut → cut beat → beat(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 gain → gained(4)以ow或aw结尾的词,把ow / aw变成ew。如: blow → blew draw → drew know → knew grow → grew(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(6)含有元音字母o或i的词,将o / i变成a。如: sing → sang give → gave sit → sat drink → drank |
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