新概念英语第一册 Lesson 83-84

语法： 现在完成时 概念：过去发生或已经完成的动作对现在造成的影响或结果，或从过去已经开始，持续到现在的动作或状态。在汉语中常用“了”、“过”或“已经”来表示。 基本结构：助动词have/has + done （过去分词）

规则动词的过去分词与过去式相同，而不规则动词的过去分词则无统一的规律可言，需特别加以记忆。

现在完成时通常与表示不确定的时间副词或短语连用如 just, already, before, never, ever, twice, three times等。I’ve already had lunch . I’ve just had lunch .

already和yet都可以作为现在完成时的标志词，但它们的用法不同。 ◆already一般用于肯定句中。如：We have already cleaned up our classroom. 注意：already用于疑问句中时通常表示惊奇。如： Have you finished your homework already? I can’t believe it.

◆yet一般用于疑问句和否定句中。如： Have you seen her yet? The bus hasn’t come yet.

疑问式是将have／has提到主语之前，否定式则在have／has后加上not即可，have not缩写为 ：haven’t , has not 缩写为 : hasn’t 例如 ：

I have had lunch .我已经吃过午饭了。

一般疑问句及肯定，否定回答 ： 否定句 ：

She has already read this book .她已经读过这本书了。

一般疑问句及肯定，否定回答 ： 否定句 ：

一、写出下列动词的第三人称单数形式，现在分词及过去式。

1 pack _______ _______ ________ 2 have _______ _______ ________ 3 go _______ 5 stay _______ 二、连词成句。

1 with, do, want, you, lunch, have, me, to ________________________________ _ ? 2 going, we, to, are, have, holiday, a _________________________________ 3 had, a tea, I, already, have, cup, of ________________________________ _ 4 has, any, she, beer, had, or, wine ________________________________ _ _______ ________ 4 buy _______

_______ ________

_______ ________ 6 leave

5 did, paint, you, this, when, room ________________________________ _ 三、单项选择。

( )1.I must stay ______ home today.

A. on

B. in

C. for

D. at

D. have, eat

( )2.They ______ already _____ their lunch. A. had, had ( )3.Do you want to go _____ us? A. with B. for ( )4.When ____ you ____ yesterday evening?

B. have, had C. have, have

D. about

C. in

A. do, leave B. did, left C. do, left D. did, leave

C. having D. had

( )5.He is going to ________ a holiday. A. have B. has

( )6.They arrived ______ a quarter _____ five. A. at, to B. in, to C. to, at D. to, past ( )7.________ she ______ any tea?

A. Has, has

B. Has, had C. Has, have D. Did, has

C. for D. have

D. after

( )8.Let’s go ________ the classroom. A. into B. in ( )9.He _______ very lucky. A. has

B. does C. is

( )10.______ a cup of tea, please. A. Had B. Has 四、完成下列句子。 1. 我和我的母亲去度假。

C. Have D. Having

________ ______ and ________ _______ going to _______ a holiday.

2. ---他什么时候离开的？---刚刚离开。

---When ______ he _______ here？

---He _______ here just now.

3. 我们今年已经度过假了。 We _______ _______ _______ our holiday _______ ________. 4. 她饭后已经吃了一个苹果. 5. 她们吃的是香蕉还是桔子？

英语小故事

One day a poor man was cutting a big piece of wood (木头) near a river. Suddenly his old axe (斧子) fell into the water. He felt very sad because he lost his only axe. Then all at once a beautiful fairy (仙女) came out and asked the man what the was matter.

“I have lost my axe.” he said, “It fell into the water when I was cutting the wood.” The fairy showed him a gold axe and asked, “Is that yours?” “No.” said the man.

The fairy then showed him a silver (银) axe and asked again, “Is this yours?” “No.” again answered the man. Then she showed him the old axe. “Yes, that is mine.” called out the happy man.

“I know it well enough.” said the fairy, “I only wanted to see if you would tell me the truth, and now I’ll give you the gold axe and the silver axe besides (包括) your own one.”

She has ______ an apple _______ ________ ________. Have they ______ any bananas ______ oranges?