4. I 、 Discuss the following questions? 1 、 Have you heard of the Great Wall? （万 里长城） 2 、 Have you heard of the Great Green Wall? 3 、 What’s the Great Wall? Where have the Chinese people built the Great Green Wall?

5. II 、 Forest Shelter Belt in Northwest,North and Northeast China.

6. Note: Sanbei shelter-forest （三北防护林） is known as China’s “Great Green Wall”. It is a “Great Green Wall”of tress, millions of trees. China has built a new Great Green Wall across the northern part, including Inner Mongdia, Shanxi, Hebei, Beijing and Tianjin. The Great Green Wall also covers some of the Northwest (Xinjiang, Qinghai, Gansu, Ningxia and Shanxi) and the west part of the Northeast.(Liaoning, Jinlin and Hei Longjiang) It includes( 包括 ) 13 provinces, cities and automomous region.( 自治区 ) Its total area is 4,069,000 square kilometers, which cover 42.4% of the land of China. The building of the Great Green Wall will take 73 years.(1978—2050) This building( 工程 ) will take so much time, so much land,so much money and so many people to build it. Why?

7. III 、 Now read the text as quickly as you can and answer the following question. Why was the Great Green Wall built?

8. IV 、 Read the text more carefully again and answer the following questions? First let’s read through the questions. 1How do forests help prevent drought? 2How can forests prevent floods? 3How long and wide is the Great Green Wall? 4Why is the Great Green Wall so important? 5Who works at Yu Lin in Shanxi province? Where did the write find him? 6What will happen to the mountains in a few years’ time? 7What does WangFeng think of the work on the Great Green Wall?

9. V 、 Discuss how to divide the text and main ideas. The first part—the first paragraph(para.one) The importance( 重要 ) of forests The Second Part (para.2—3) Something about the Great Green Wall in China. The third part—(para.4—6) Something about Wang Feng,other workers and their work;what Wang Feng thinks about the Great Green Wall and his work.

10. VI 、 Fill in the blanks. The try to retell the text.”The Great Green Wall” Forests help to stop droughts and floods, so China has a new Great Wall the northern part of the country. The Great Green Wall is 7,000 kilometers, and between 400 and 1,700 kilometers. It will stop the wind blowing the earth away. It will stop the from moving the rich in the south. If more Great Green Walls are built, more good land will be protected and then more crops will be produced to feed more people.

11. The answers to the exercise Forests help to stop droughts and floods, so China has built a new Great Wall across the northern part of the country. The Great Green Wall is 7,000 kilometers long, and between 400 and 1,700 kilometers wide. It will stop the wind from blowing the earth away. It will stop the sand from moving towards the rich farmland in the south. If more Great Green Walls are built, more good land will be protected and then more crops will be produced to feed more people.

12. VII 、 The closing remarks( 结束语 ) It shows what has happened to the forests of the USA in the last 350 years. In 1620, about half the USA was covered by forests. In 1850, about a third was covered by forests. Today, the forests have almost gone. A lot of good land has gone with them, leaving only sand. Today, too many trees are still being cut down in the USA. China mustn’t copy the USA’s example. We must plant more to make our country greener, richer and more beautiful. Do remember: The more, the better. 100 50 0 16201850