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1、 永久免费在线组卷 课件教案下载 无需注册和点数九年级上仁爱版英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: (
2、1) Whats the population of China?Its (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 o
3、n learning the numbers with 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
4、一分，高分组为获胜组。)T: Lets have a contest to review the present perfect tense, OK?Ss: 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 o
5、n the card. Lets 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 havent 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)
6、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 didnt seem to be very good, S1?S1: Because the family members in the old picture were more than those in the new picture.T: Yes. What will happen if our c
7、ountry has a larger population?(由学生举手回答)S2: It will be hard to improve our living conditions.T: Now, whats the population of our country?S3: 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
8、. ?(板书并讲解。)the developed/developing countryS3: 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 Indonesi
9、as and Brazils 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. Whats the population of the world?S7: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:Rig
10、ht. There are 6.6 billion people in the 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s
11、o 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
12、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。)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/India?S2: 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 populati
13、on of Brazil?B: It is about 188 million. Whats 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 de
14、velopedcountries, doesnt it?3. China has already 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 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. 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
15、think you all did well. (学生两人一组进行问答练习。)S1:Whats the population of China?S2:Its about 1. 3 billion. Whats 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 Prac
16、tice 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。)S1:Two hundred and eighteenS2:Three hundred and sixS3: Five thousand, three hundre
17、d 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)736 547 8 736 062 9 839 800 (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
18、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
19、 of you have mastered how to read the numbers. Please look at the numbers in 2a. Read them together.2. T:Lets 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)7 398 500 406 000 000 17 602 018 000 676 302 320 (教师在黑板上画出计
20、分表。)G1G2G3G43. 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 lets listen to the tape of 2b and number the pictures you hear and write down your answers. After that, lets check the answers. S1:Picture FThe jac
21、ket costs￥326. 00. S2:Picture BIts about 6 575 miles from Beijing to Toronto. S3: Picture AThe mountain is 8 844. 43 meters high. S4: Picture EThe population of China was 1. 3 billion in 2007. S5: Picture DI think the population of Canada was about 33 million in 2007. S6: Picture CThe dinosaur lived
22、 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)1. T: The population problem is the biggest one in China. Now lets discuss the question: What are the problems of Chinas 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。) S
23、1: The population is still increasing. S2: The people in the countryside cant 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 Chinas population? Please discuss it. (鼓励学生表达自己的观点。) S4: The population of China wi
24、ll 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。)2. Homework:Write a report about the population of China in the future. 板书设计：What a large population!Section Bdeveloped/developing countryWhats the population of the U.S.A.?increase byIts 302 million.have/has a population ofSo it is. 永久免费在线组卷 课件教案下载 无需注册和点数