2022年最新仁爱英语教学案例设计九年级上册 2.pdf

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1、Unit 1 The Changing World Topic 2 China has the largest population. Section CThe main activityis 1a. 本课重点活动是1a。. Teaching aims and demands 教学目标1. Learn some new words and phrases: difficulty, be short of, so far, take measures to do sth., percent 2. Learn some useful sentences: (1) and about one fif

2、th of the people in the world live in China. (2) our government has taken many measures to control the population. (3) Thanks to the policy, China is developing quickly and people s living conditions are improving rapidly. 3. Talk about the problems the large population causes: (1)It s difficult for

3、 lots of people to find jobs. (2), we are short of energy and water. (3)Most cities are more crowded than before, and the traffic is much heavier. 4. Get students to know how serious the world s population problem is. . Teaching aids 教具多媒体 /图片 /小黑板 /录音机. Five-finger Teaching Plan 五指教学方案Step 1 Review

4、 第一步复习 ( 时间 :8 分钟 )教师出示一些数字和图表，复习高位数表达法，导入新课。1. (用添加数字的方法复习高位数字，使学生由浅入深地掌握知识。操作方法：教师首先在黑板上写出一个两位数，然后逐次在前面加上一个数字，被提问的学生由基础较差的向基础较好的依次递进。) T: I ll write numbers like these “ 888 888 888, 8 888 888 888” . Say these numbers as quickly as you can, clear? Ss: Yes. T: 88. S1: Eighty-eight. T: 888. S2: Eigh

5、t hundred and eighty-eight. T: 8 888. S3: Eight thousand, eight hundred and eighty-eight. T: 8 888 888 888. 精选学习资料 - - - - - - - - - 名师归纳总结 - - - - - - -第 1 页，共 4 页S4: Eight billion, eight hundred and eighty-eight million, eight hundred and eighty-eight thousand, eight hundred and eighty-eight. 2. (

6、通过多媒体展示世界各国人口图表，复习Section B 中重要句型。 ) T: You have mastered how to say these numbers. Now look at the chart and review what we ve learned in Section B. What s the population of the world? Ss: It is said that the world has a population of 6.5 billion. T: Which country has the largest population? Ss: Ch

7、ina has the largest population, with 1.3 billion. T: Is the world s population increasing now? Ss: Yes, the world s population is increasing by 80 million every year. T: It is really one of the biggest problems today. I think we should do something to solve this problem. Ss: Yes. Step 2 Presentation

8、 第二步呈现 ( 时间 :10 分钟 ) 通过图片，创设语言情景，呈现部分生词、词组及分数的表达法。1. (教师展示人才市场的图片和事先准备好的小黑板，引出1a。) T: Boys and girls, we have known the world has a large population. Now, look at the picture and the statements about population: （出示小黑板。 ）(1) Every minute about 261 babies are born in the world. (2) The world s popula

9、tion is growing faster and faster. (3) China has the largest population in the world. (4) China s population has reached one fifth of the world s population. T: What do you think of the picture and the statements, boys and girls? Ss: That s terrible! T: Yes. The growing population will cause many di

10、fficulties. It will influence the development of the world s economy. So far, some families still can t offer their children a good education. (板书单词difficulty ，词组 so far，要求学生掌握。) difficult(adj.) difficulty(n.) difficulties(n.pl.) so far T: Do you want to know other problems caused by the large popul

11、ation? Ss: Sure. T: We are short of energy and water. Now China s population is one fifth of the world s population. It means it is 20 percent of the world s population, so China has taken some measures to solve the problem. Do you know what they are? (板书 one fifth ，详解并要求学生掌握分数表示法；掌握单词percent，词组 be

12、short of, take measures to do sth.。) 精选学习资料 - - - - - - - - - 名师归纳总结 - - - - - - -第 2 页，共 4 页be short of one fifth percent take measures to do sth. Ss: One is known as the one-child policy. It has worked well in controlling China s population. T: Thanks to the policy, China is developing quickly and

13、 people s living conditions are improving rapidly. (让学生读1a，然后回答1a 中的两个问题，完成1a。) Step 3 Consolidation 第三步巩固 ( 时间 :10 分钟 )利用关键词复述1a，并独立完成1b，进一步了解中国所面临的人口问题。1. (让学生自读1a 并独立完成1b，然后核对答案。) T: Let s look at 1b. Describe the disadvantages of China s large population according to 1a and write them down. You

14、have two minutes. (两分钟后，教师核对答案。) T: Now I will ask several students to write their answers on the blackboard. S1: Less space to live in. S2: Difficult to find jobs for lots of people. S3: Short of energy and water. S4: Most cities are more crowded. S5: The traffic is heavier. S6: There will be much

15、more pollution. S7: T: Your answers are wonderful. 2. (学生阅读1a的同时 , 教师把关键词列在小黑板上。) T: Boys and girls, please read 1a again and then retell it according to the key words on the small blackboard. (教师出示小黑板。) 6. 5 million 3 billion half one fifth cause difficulties take measures to work well in living co

16、nditions serious a long way (首先，教师根据小黑板上的关键词复述1a 作示范，然后让两位同学复述。当学生表达错误时 , 教师给予纠正。当学生表达不出时, 教师或其他同学给予帮助，提高学生口语复述能力。 ) Step 4 Practice 第四步练习 ( 时间 :10 分钟 )播放 2a 录音，完成2b。进一步了解世界和中国人口状况，强化练习现在完成时的用法。1. (教师拿出一张 ” 地球上站满人” 的图片或将图片展示在多媒体上。让学生仔细观察, 然后播放 2a 录音。 ) T:Now, look at the picture. The earth is full o

17、f people. Every minute about 261 babies are born in the world. That means people have to find food for about 375 840 newborn babies every day. The population problem is serious. Please listen to the tape and complete the article in 2a. 精选学习资料 - - - - - - - - - 名师归纳总结 - - - - - - -第 3 页，共 4 页(板书并要求学生

18、了解。) newborn T: Now, look at the text by yourselves. Let s listen to the tape again and check the answers. (让学生核对完后, 一起齐读短文。) T: You have understood the text. Let s do the exercises in 2b. Then we will check the answers. (给学生一分钟 , 理解 2b 中的五个句子 , 让一位学生回答。) 2. (用现在完成时和重点词组造句，复习含有just, ever, already, y

19、et 等词的现在完成时的用法。 ) T: Make some sentences using the present perfect tense with “just” , “ever” , “already” , “yet”and so on. Step 5 Project 第五步综合探究活动( 时间 :7 分钟 )完成 3，让学生讨论中国人口现状，尽量运用现在完成时和高位数的表达法。学生给笔友写一封信，然后根据表格内容写一份有关世界不同城市生活状况的调查报告。1. (让学生写一封信给他/她的笔友 , 谈谈他 /她对中国人口问题的看法。写得好的，可以读一小段给同学听。教师说明写信时必须注意的

20、事项。) T: You have known so much about the population. Now, write a letter to your pen pal about the population problem in China. The questions in 3 may help you, then I will ask some students to show their opinions. 2. Homework: Make a survey and complete the chart, then write a survey report. You ca

21、n search for information on the Internet. 板书设计：China has the largest population. Section C be short ofone fifth so fardifficult(adj.)-difficulty(n.)-difficulties(n.pl.) take measures to do sth.Thanks to the policy, City Population Road Living condition Beijing Tokyo Toronto New York Your city 精选学习资料 - - - - - - - - - 名师归纳总结 - - - - - - -第 4 页，共 4 页