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初中新理念英语④ Lesson 1 第一课时

发布时间:2014-03-02 19:00:39  

现代新理念英语初中④教学课件

Lesson 1 Have you returned the book?

第一课时

Revision 1
exercise English

history
Chinese

Revision 2
hold experiment maths physics chemistry biology geography subject term
拿,握住,举行 实验 数学 物理 化学 生物 地理 题目,学科,主语 学期

Starter

5

4

2

6

3

1

Starter

1

3

2

5

8

6

7

4

Structure

He opened the door.

The door is open now.

He has opened the door.

现在完成时(一)
现在完成时表示过去的动作(或状态) 对现在产生的影响和结果。

moved here hadin breakfast 2005

I’m not hungry now I still live here

过去

现在

1. 过去发生的动作对现在造成的影响或结果
我刚吃过饭。I have just had my breakfast. (现在我不饿) 2. 过去已经开始, 持续到现在的动作或状态 (常用延续性动词) 05年起我就住这。 I have lived here since 2005. (现还住这)

看 图 写 话
changed a lot China has___________ these years. given up Chenglong has _____

smoking.

Air pollution has caused _______many problems.

bought I have ___________ a new car.

Complete the following sentences with the proper tense.
have studied (study) English for about 1 We _____________ five years. have lived 2 They ______________ (live) in the south since their daughter was born. have read (read) your article three times. 3 I ___________ It’s well written. has finished 4 The student _____________ (finish) her homework already. has sold 5 Eric _____________ (sell) his old house already.

现在完成时的句型变换
肯定式:

主语 + 助动词have/has + 动词的过去分词.

I have finished the work. She has just arrived.

现在完成时的句型变换
否定式: 主语 + 助动词have/has + not + 动词的过去分词. I haven’t finished the work yet. She hasn’t arrived yet.

现在完成时的句型变换
疑问式: 助动词Have/Has + 主语 + 动词的过去分词? Have you finished the work? Yes, I have./ No, I haven’t. Has she arrived yet? Yes, she has./ No, she hasn’t.

练习:
按要求改写下列句子: 1) 2) We have visited the museum. (改为一般疑问句) They have seen the film. (改为否定句)

3)

He has returned the book.
(改为一般疑问句并做肯定回答)

4)

Jenny has already had her lunch. (改为一般疑问句并做否定回答)

现在完成时与一般过去时的区别
? 现在完成时表示过去发生的某一动作对现在造成的影响或 结果,强调的是现在情况,所以它不能和表示过去的时间 状语连用,如:yesterday, last night, three weeks ago, in 1990等。而一般过去时只表示过去的动作或状态,和现在 无关,它可以和表示过去的时间状语连用。如: ? I have opened the door.我已经把门打开了。(现在门开着) ? I opened the door just now.我刚才开过门。(不涉及现在 门是否开着)

完成下列句子
saw 1. I _______(see) this film yester

day. (强调看的动作发生过了) 2. I ____________ have seen (see) this film. (强调对现在的影响,电影的内容已经知道了) 3. He __________ has been (be) in the League for three years. (在团内的状态可延续) joined (join) the League three years ago. 4. He ________ (强调加入的动作发生在过去)

Structure
The past tense and past participle
work---worked---worked hope---hoped---hoped stop---stopped---stopped

study---studied---studied cut---cut---cut lose---lost---lost
come---came---come do---did---done break---broke---broken

Practice

have
have forgot has gone
haven’t found Has returned

had

haven’t posted have finished Has come came have did bought bought buy finished

Practice
B

C

A

B

Summary

Homework

A. 复习本课的全部单词;

B. 练习用本课所学的现在完成时造句;
C. 做《能力训练手册》中的有关练习。


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