1、九年级上仁爱版英Unit1 Topic 2 What a large population Section B教学设计The main activities are 1a and 2a. 本课重点活动是1a和2a。. Teaching aims and demands 教学目标1. Learn the new word and expression: increase, write down2. Go on learning the present perfect tense and master some useful sentences: (1) Whats the population
2、of ChinaIts (2) It is increasing by 80 million every year.(3) Which country has the largest population (4) So it is. (5) The population problem is more serious in developing countries. (6) China has already carried out the one-child policy to control the population. 3. Go on learning the numbers wit
3、h million, billon.4. Make students realize the serious population problem. Teaching aids 教具录音机/多媒体课件/小黑板/世界人口示意图. Five-finger Teaching Plan 五指教学方案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: Lets have a
4、 contest to review the present perfect tense, OKSs: Great.T: First, Ill divide the whole class into two parts. Then Ill 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. Lets go!(教师出示写有alrea
5、dy的卡片。)T: Already, please!Group 1: She has already finished her homework.T: Congratulations. Yet, please!Group 1: I havent watered the flowers yet.T: Congratulations. Group 1. Ever, please!Group 2: Has your sister ever been to TibetStep 2 Presentation 第二步 呈现(时间:16分钟)1. (教师让一学生复述Section A 3a内容，引出人口问题
6、。)T: Who can retell 3a in Section AS1: I can.(学生复述课文。)T: Well done. Can you tell me why their living conditions didnt seem to be very good, S1S1: 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
7、手答复)S2: It will be hard to improve our living conditions.T: Now, whats the population of our countryS3: China has a population of 1.3 billion. Its the largest population in the world.T: The U.S.A. is the most developed country. Whats the population of the U. S. A. (板书并讲解。)the developed/developing co
8、untryS3: Its about 250 million. S4: I think it is about 300 million. T: Lets 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 Indonesias and Brazils population.S5:The popul
9、ation of Indonesia is 245 million.S6:Brazil has a population of 188 million.T:Well done. We have known some countries population. Whats the population of the worldS7:I dont 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
10、 world. And the worlds 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)increaseT: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“
11、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 outSs: 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 at
12、tention to these sentences. (板书句型，要求掌握。)Whats the population of the U. S. A.Its 302 million.(教师重点解释这个句型，让学生说出更多的句子。)S1:Whats the population of China/IndiaS2: Its about 1. 3 billion/1.1 billion(板书单词，要求学生理解。)billion(教师利用世界人口示意图，让学生一问一答。)A: Whats the population of BrazilB: It is about 188 million. What
13、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。)1. And it is increasing by 80 million every year.2. It shows that the population in developing countries is larger than that in developedcountries, doesnt it3. China has alread
14、y carried out the one-child policy to control the population.(让学生齐读课文一遍。)Step 3 Consolidation 第三步 稳固(时间:8分钟) (根据1b，让学生完成表格。)T:Look at the form. Then fill it out. CountryChinaIndiathe U.S.A. IndonesiaBrazil Population(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:Whats
15、 the population of ChinaS2:Its about 1. 3 billion. Whats the population of IndiaS1: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)1. T: We have learnt about many countries population. Do you know how to express large numbers First lets look at the blackboard. (板书)218 306 5 366(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。)