约1770字。

　　Topic 2  China has the largest population.
　　Section C
　　The main activity is 1a. 本课重点活动是1a。
　　Ⅰ. Teaching aims and demands 教学目标
　　1. Learn some new words and phrases:
　　difficulty, be short of, so far, tares to do sth., percent
　　2. Learn some useful sentences:
　　(1) … and about one fifth 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. Talt the problems the large population causes:
　　(1)It’s difficult for 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.
　　Ⅱ. Teaching aids 教具
　　多媒体/图片/小黑板/录音机
　　Ⅲ. Five-finger Teaching Plan
　　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好的依次递进。)
　　T:  I’ll write numbers like this “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: Eight hundred and eighty-eight.
　　T:  8 888.
　　S3: Eight thousand, eight hundred and eighty-eight.
　　…
　　T:  8 888 888 888.
　　S4: Eight billion, eight hundred and eighty-eight million, eight hundred and eighty-eight thousand, eight hundred and eighty-eight.
　　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。)
　　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: China 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.