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构成
B.否定句
主语+助动词have﹨has +not +过去分词
例:I have closed the door.
例:She hasn’t taken an umbrella.
C. 疑问句
助动词Have﹨ Has +主语+过去分词+…?
肯定回答:
否定回答:
No, 主语 + haven’t /hasn’t.
Yes, 主语 + have/has.
Do exercises
1. He has told the girl about the good news.
改成否定句:
He hasn’t told the girl about the good news.
肯定回答:Yes, he has.
否定回答:No, he hasn’t.
改成一般疑问句,并作出回答:
Has he told the girl about the good news?
对划线部分提问:
What have you read just ?
2. I just have read the magazine .
过去分词的规则变化:
?
4.以重读闭音节结尾的动词,要双写末尾的辅音字母再加-ed;
1.一般情况下,在动词后加-ed;
2.在以- e结尾的动词后只加-d;
3.在以辅音字母加y结尾的动词,应将y改为i再加ed;
1. A --- A --- A 型
cost cost cost