2. Homework:

Write a report about the population of China in the future.

板书设计：

1. T: The population problem is the biggest one in China. Now let’s discuss the question: What

　are the problems of China’s population?

(学生小组讨论。)

T:　 Who can talk about it?

(学生可能要说的很多，但有些语言他们表达不清楚，教师加以引导，使他们尽量用简洁的语言表达清楚。)

　 S₁: The population is still increasing.

　 S₂: The people in the countryside can’t obey the one-child policy.

　 S₃: There are more and more old people in some big cities.

　 T: 　　　 Very good. But what do you think of the future of China’s population? Please discuss it.

　 (鼓励学生表达自己的观点。)

　 S₄: The population of China will be 1.5 billion in 2050.

　 S₅: Maybe China will have a population of 1.7 billion in 2050.

S₆: Maybe the population of China will become smaller than before with the help of the

one-child policy.

　 (学生可能做出种种猜测。)

3. T: Look at the pictures of 2b and describe them.

(让学生通过自己的猜测，用所学过的语言知识把图片描述一下。教师可以先提问程度稍差的同学，复习较大数字的读法并把新旧知识结合起来。)

T: Yeah, very good. Now let’s listen to the tape of 2b and number the pictures you hear and write down your answers. After that, let’s check the answers.

S₁: Picture F　　　　　　 The jacket costs￥326. 00.

S₂: Picture B　　　　　 It’s about 6 575 miles from Beijing to Toronto.

S₃: Picture A　　　　　 The mountain is 8 844. 43 meters high.

S₄: Picture E　　　　　 The population of China was 1. 3 billion in 2007.

S₅: Picture D　　　　　 I think the population of Canada was about 33 million in 2007.

S₆: Picture C　　　　　 The dinosaur lived 210 million years ago.

(教师核对答案。要求学生掌握词组write down。)

Step 5　 Project 第五步 　综合探究活动(时间:5分钟)

2. T:　 Let’s play a number game. I will show you some numbers. Read them quickly and correctly in groups.

　 (每个小组各选派三位学生，由教师统分，构建评分机制，激发学生兴趣。)

(板书)

　 (教师在黑板上画出计分表。)

1. T: We have learnt about many countries’ population. Do you know how to express large numbers? First let’s look at the blackboard.

　 (板书)

(教师由以前学的百、千引入百万、十亿。教师可以先提问后进生，让这些学生有成就感，以提高他们的兴趣。)

S₁: Two hundred and eighteen

S₂: Three hundred and six

S₃: Five thousand, three hundred and sixty-six

(教师总结数字的读法，指出易出错点和个别学生表达的错误。)

T: Now, look at these numbers. Can you read these numbers?

(板书)

　 (教师先讲述三位一划分原则，再让学生运用。给学生准备时间，然后提问。)

　 S₄: 736 547 Seven hundred and thirty-six thousand, five hundred and forty-seven

　 (可以先提问较好的学生，总结一下。教师必须说明and, -, thousand放的位置，以及注意此处量词不加“s”。)

　 T: Now, I will ask other students to read the numbers.

　 S₂: 8 736 062 eight million, seven hundred and thirty-six thousand and sixty-two

　 S₃: 7 198 764 501 seven billion, one hundred and ninety-eight million, seven hundred and sixty-four thousand, five hundred and one.

　 T: You are great. Most of you have mastered how to read the numbers. Please look at the numbers in 2a. Read them together.

1. (教师让一学生复述Section A 3a内容，引出人口问题。)

T: Who can retell 3a in Section A?

S₁: I can.

(学生复述课文。)

T: Well done. Can you tell me why their living conditions didn’t seem to be very good, S_1­?

S₁: Because the family members in the old picture were more than those in the new picture.

T: Yes. What will happen if our country has a larger population?

(由学生举手回答)

S₂: It will be hard to improve our living conditions.

T: Now, what’s the population of our country?

S₃: China has a population of 1.3 billion. It’s the largest population in the world.

T: The U.S.A. is the most developed country. What’s the population of the U. S. A. ?

(板书并讲解。)

S₃: It’s about 250 million.

S₄: I think it is about 300 million.

T: Let’s look at the multimedia.

(看多媒体，展示1b中图表。)

T:　 Here is a chart about some countries’ population. Look at the U.S.A. The U.S.A. has a population of 302 million. Now look again. Tell me Indonesia’s and Brazil’s population.

S₅:　　　 The population of Indonesia is 245 million.

S₆:　　　 Brazil has a population of 188 million.

T:　 Well done. We have known some countries’ population. What’s the population of the world?

S₇:　　　 I don’t know.

S₈:　　　 The world has a population of 6.6 billion.

(要求学生掌握词组have a population of。)

T:　 Right. There are 6.6 billion people in the world. And the world’s population is increasing by 80 million every year.

(教师板书单词increase，要求掌握increase，延伸讲解increase by和increase to的区别)

T: Look at the chart, the population in developing countries is larger than that in developed countries.

Ss:　　　 So it is.

(板书so it is，讲解“so+代词/名词+助动词/be动词/情态动词”结构，并和“so+助动词/be动词/情态动词+代词/名词”的结构进行区分。)

T:　 In order to solve the population problem, what policy does China carry out?

Ss: One-child policy.

(教师放1a录音，让学生找出含数词的句子。)

T:　 Open your books. Listen to the tape carefully and underline the sentences including numbers.

(教师再播放一遍，让学生在含有数字的句子下面画线。)

T:　 Look at your books. Pay attention to these sentences.

(板书句型，要求掌握。)

(教师重点解释这个句型，让学生说出更多的句子。)

S₁: What’s the population of China/India…?

S₂: It’s about 1. 3 billion/1.1 billion…

(板书单词，要求学生理解。)

(教师利用世界人口示意图，让学生一问一答。)

A: What’s the population of Brazil?

B: It is about 188 million. What’s the population of China/ …?

A: …

T: Good job. Please read the dialog and discuss the key sentences.

(教师板书并讲解这三个句子，使学生加深对文章的理解。)

(让学生齐读课文一遍。)

Step 3　 Consolidation 第三步 　巩固(时间:8分钟)

　(根据1b，让学生完成表格。)

T:　 Look at the form. Then fill it out.

(本表格很简单。一分钟后，老师叫几位学生核对答案。)

T:　 Great. I think you all did well.

(学生两人一组进行问答练习。)

S₁: What’s the population of China?

S₂: It’s about 1. 3 billion. What’s the population of India?

S₁:　 It is about 1. 1 billion. What about the U.S.A.?

S₂: …

(以比较快的速度来完成训练。)

T:　　 OK. I think you have mastered the dialog. You can practice it by yourselves after class.

Step 4　 Practice 第四步 　练习(时间:10分钟)

Step 1　 Review 第一步　 复习(时间:6分钟)

1. (小竞赛。教师把班中学生分为两组。然后出示写有already, yet, ever, never, just的卡片，要求学生以抢答形式迅速说出含有卡片上词的句子，要求用现在完成时。迅速且正确者赢一分，高分组为获胜组。)

T: Let’s have a contest to review the present perfect tense, OK?

Ss: Great.

T: First, I’ll divide the whole class into two parts. Then I’ll show the cards with “already”, “yet”, “ever”, “never” and “just” one by one. Your team will get a score if you give me a correct sentence with the word on the card. Let’s go!

(教师出示写有already的卡片。)

T: Already, please!

Group 1: She has already finished her homework.

T: Congratulations. Yet, please!

Group 1: I haven’t watered the flowers yet.

T: Congratulations. Group 1. Ever, please!

Group 2: Has your sister ever been to Tibet?

…

Step 2　 Presentation 第二步 　呈现(时间:16分钟)

录音机/多媒体课件/小黑板/世界人口示意图

4. Make students realize the serious population problem.

3. Go on learning the numbers with million, billon.