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? II 、 Forest Shelter Belt in Northwest,North and Northeast China. 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? III 、 Now read the text as quickly as you can and answer the following question.Why was the Great Green Wall built? 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? V 、 Discuss how to divide the text and main ideas.<1> T...