1. （录音） Unit1 The Changing World Topic2 Which country has the largest population?

3. 2b Useful expressions So do I. Neither do my parents. It says that the world has a population of 6.5 billion. What’s the population of the U.S.A.? So it is. one fifth be short of Thanks to the policy …

4. 综合填空 The world has a large population of 6.5 billion. And it is growing fast. _____is that of China. China has the largest population of the world. About____ _____of the people in the world live in China. The large population causes many problems today. For example, we____ ____ ____ energy and water. Most of the cities are crowded than before, and the traffic is much heavier. Some parents in less developed areas prefer boys to girls. So they can’t ____ girls a good education. China has _____ ______ ______ to control the population. One ____ ____ ____ one-child policy. ____ ____the policy, China is developing quickly, and the people’s living conditions are improving rapidly. Our lives are becoming more and more comfortable. one So are short of offer taken some measures is known as Thanks to fifth

5. The train （ leave. It （ leave ） just now. She is doing her homework. She (not finish) her homework yet. has left left hasn’t finished

6. A: _____ you (care) for the old before? B: Yes. We often take social activities in holidays. I know the Great Wall very well. Because I (be) there before. Has cared have been

7. have cleaned the clothes past now * 表过去发生的某一动作对现在造成的影响或结果。 I have just cleaned my clothes. 我刚洗过衣服。（ “ 洗 衣服 ” 是发生在过去的动作，对现在造成的结果是 “ 衣服干 净了 ” 。） I have just had my breakfast. 我刚吃过早饭。 ( 对现在的影响是 “ 不饿 ” 。 ) cleaned the clothes

8. * 通常与表示包括现在在内的时间副词 just （刚刚）, already （已经）, before, yet （一般疑问句：已 经；否定句：还）， never, ever 等状语连用。 ① I have never heard of that before. ② Have you ever ridden a horse? ③ She has already finished the work. ④ Have you milked the cow yet? Yes, I have done that already. ⑤ I’ve just finished my homework. ⑥ He has not come yet.

9. 试比较： The plane has arrived. 飞机已经来了。 （说明现在的情况：飞机在这儿。） The plane arrived a quarter ago. 飞机是 一刻钟以前来的。（强调动作发生的时 间在过去。） 【注】现在完成时不能和明确表示过去 的时间状语连用。如 : yesterday, last week, in 1980, 3 days ago 等。

10. Do you want to live in a small town or a big city? * Environment * Living condition * People’s relations 人们的关系 * Transportation 交通

11. 1.Where do Sue and Li Ming live? 2.What are the differences between their lives? Read 1a and answer the questions Then underline the descriptive words. （影片）

12. Fill in the blanks using the information about Fairmont. Fairmont population the environment transportation 交通 shopping people’s relations 人们的关系 fewer than 600 people tall, green tress, clean, fresh air like one big family It takes a couple of hours to go shopping. difficult to see friends far away 1b Work alone 录音 1

13. Then make a similar one about Beijing. Beijing 北京 Places of interest: the Great Wall, the Ming Tombs, the Summer Palace, the Forbidden City History: a long history Shopping: big shopping centers and huge markets, easy and pleasant Public transportation: buses, taxis and subways to go to any parts of the city, excellent People’s life: not always easy, work and study hard 1b Work alone

14. Project * You belong to * Advantages * Disadvantages * Like … best. Why? Different kinds of families { Write down your conclusion

15. Exercises 1. —Have you seen this film ____? —Yes, I saw it two years _____. A. ago, before B. before, ago C. ago, ago D. before, before 2. I won't go to the party ___ I'm invited. A. unless B. though C. if D. but B A

16. 3. I’ll be back in a _____ of days. A. couple B. pair C. two D. couples 4. —I like to sing English songs. What about you? — _____ A. So I do. B. So do I. C. Either is OK. D. You decide. A B

17. 5. —Have you improved your spoken English _____? —Yes, I have. I’ve _____ improved it. A. already; already B. already; yet C. yet; already D. yet; yet 6.Two sixths of the students _____ girls in our class. A. be B. are C. is D. am C B