动词过去式和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。
1) 规则变化
d 〕,在元音后发音也为 [d]
一般在动词原形后加 -ed
look - looked - looked
open - opened - opened
①-ed在清辅音音素后发音为〔
②-ed在t、d后发音为[id]
③但 fix 的过去式和过去分词
以 -e 结尾的动词加 -d
call - called - called
need - needed - needed
t 〕,在浊辅音后发音为〔
x 不双写,为 fixed.
move - moved - moved
hope - hoped - hoped
phone - phoned - phoned
agree - agreed - agreed
以辅音字母加 y 结尾的动词,变 y 为 i ,再加 -ed
study - studied - studied carry - carried - carried try - tried -
tried
以元音字母加 y 结尾的词,直接加 -ed
play - played - played enjoy - enjoyed - enjoyed stay - stayed - stayed
末尾只有一个辅音字母的重读闭音节词,双写该辅音字母,再加 -ed
plan - planned - planned
fit - fitted
stop - stopped - stopped
fitted
-r 结尾的词,双写 r 字母, 再加 -ed
prefer - preferred - preferred
refer - referred - referred
2) 不规则变化 英语中有些动词的过去式和过去分词形式变化不规则,可分为五种情况。
1 .动词原形、过去式和过去分词完全同形。
cut (切) , hit (打) , cast (扔), hurt (伤害), put (放) , let (让)
shut (关) , cost (花费)
set (放) , rid (清除)
2.过去式与过去分词完全同形。
find (找到) --found, found
--left, left
lend (借出) --lent, lent
--kept, kept
lose (丢失) --lost, lost
--sat, sat
lead (引导) --led, led
3.动词原形与过去分词同形
pay (支付)--paid, paid leave (离开)
meet (遇见)--met, met keep (保持)
teach (教) --taught, taught sit (坐)
win (赢) --won, won
例:come (来)--came--come run (跑)--ran--run become (成为)
--became--become
4.动词原形、过去式、过去分词形式完全不同。
例: give (给) - gave - given
fly (飞) - flew - flown
drink (喝)- dr
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