牛津实用英语语法 175形式
文章来源: 文章作者: 发布时间:2007-03-14 06:18 字体: [ ]  进入论坛
(单词翻译:双击或拖选)

A规则动词的过去式是在动词原形后加 ed构成的:

动词原形:work

过去式:worked

e结尾的动词只加d

动词原形:love

过去式: loved

对所有人称,均无词形变化:

I worked                you worked                     he worked

规则和不规则动词的否定式均由 did1 notdidn t+动词原形构成:

I did notdidnt work                   you did notdidnt work

疑问式则均由 did+主语+动词原形构成:

did I work                         did you work?等

否定疑问式:

did you notdidnt you work?等

B拼写注意事项

ing时最后一个辅音字母双写的规则(参见第165节)也适用于加ed的场合:

admitadmitted

stop stopped

traveltravelled

y结尾的动词,y前为辅音字母时,在加ed之前要把y变为i

carry carried

try tried

y前面是元音字母时则不变:

obey obeyed



点击收听单词发音收听单词发音  

1 did SvwxP     
v.动词do的过去式
参考例句:
  • How many goals did you score in the last game?上一场比赛你们进了几个球?
  • Why did you choose basketball in the first place?你为何首先选择篮球呢?
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