The teacher wrote some new words on the blackboard.
2） I’ve just washed my clothes.
I washed my clothes before supper.
2．英语动词的现在完成时态是由助动词have(has)+ 动词的过去分词构成的。规则动词的过去分词和它的过去式相同,即在原形后加-(-d)。可参考教参上的不规则动词的过分分词分类，以便记忆.
注1：情态动词只有原形过去式，没有过去分词。
can could may might must must will would shall should
注2：个别动词有两个过去式和两个过去分词，一个为规则变化，另一个为不规则变化：
3．为了使学生能掌握一般过去时和现在完成时的不同用法，可以编些带有这两种时态的对话，让学生进行英汉互译的口笔头练习。下面的对话供参考：
1) Have they cleaned the room?
Yes, theyve already cleaned it.
When did they clean it?
They cleaned it an hour ago.
2) She has gone to London, hasnt she?
Yes, she has.
How did she go there?
She went there by plane.
3) Have you got Kates phone call?
Yes, Ive just got it.
What did she say?
She wanted me to ask you to call back.
以
<< 上一页 [11] [12] [13] [14] [15] [16] [17] [18] [19] [20] ... 下一页 >>
本站为个人收藏性质，由于诸多原因，有部 分文章已经无从查出作者， 假如侵犯了您的权益请来信说明，我们将立刻处理！ 本站所有文章的 版权属于作者本人，如有问题请与快乐月亮船联系！
