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1、Section CThe main activity is 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., percent2. Learn some useful sentences: (1) and about one fifth of the people in the world live in China. (2) our government has t
2、aken many measures to control the population. (3) Thanks to the policy, China is developing quickly and peoples living conditions are improving rapidly.3. Talk about the problems the large population causes: (1)Its difficult for lots of people to find jobs. (2), we are short of energy and water. (3)
3、Most cities are more crowded than before, and the traffic is much heavier. 4. Get students to know how serious the worlds population problem is. . Teaching aids 教具多媒体/图片/小黑板/录音机Step 1 Review 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
4、好的依次递进。)2. (通过多媒体展示世界各国人口图表，复习Section B中重要句型。) Step 2 Presentation 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 ar
5、e born in the world.(2) The worlds population is growing faster and faster.(3) China has the largest population in the world.(4) Chinas population has reached one fifth of the worlds population.T:What do you think of the picture and the statements, boys and girls?Ss:Thats terrible!T:Yes. The growing
6、 population will cause many difficulties. It will influence the development of the worlds economy. So far, some families still cant 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 farT:Do you want to know other problems caused
7、 by the large population?Ss:Sure.T:We are short of energy and water. Now Chinas population is one fifth of the worlds population. It means it is 20 percent of the worlds 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perce
8、nt，词组be short of, take measures to do sth.。)Ss:One is known as the one-child policy. It has worked well in controlling Chinas population.T: Thanks to the policy, China is developing quickly and peoples 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 利用关键词复述1a，
9、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: Lets look at 1b. Describe the disadvantages of Chinas large population according to 1a and write them down. You have two minutes. (两分钟后，教师核对答案。)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
10、the key words on the small blackboard. (教师出示小黑板。)6. 5 million 3 billion half one fifthcause difficulties take measures to work well in living conditions seriousa 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 播放2a录音，完成2b。进一步了解世界和中国人口状况，强化
11、练习现在完成时的用法。 (让学生核对完后, 一起齐读短文。) 2. (用现在完成时和重点词组造句，复习含有just, ever, already, yet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
12、他/她对中国人口问题的看法。写的好的，可以读一小段给同学听。教师说明写信时必须注意的事项。)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 can search for information on the Internet. CityPopulationRoadLiving conditionBeijingTokyoTorontoNew YorkYour city板书设计：
