(
课件网) Where do you want to travel Unit2 Travelling aruond Extended Reading The Sahara is getting bigger 1. To master the main idea and detailed information of the passage. 2. To learn about the desertification and the reason for its expansion. 3. To get the measures to prevent its expansion . 4. To develop reading skills . Teaching Aims: Task1 skimming From the title, what do you think the passage will be about A. The beautiful scenery in Sahara. B. The big size of the Sahara. C. The expanding of Sahara and measures to solve it. D. How to survive in the Sahara. Read the passage quickly, and get the main idea of the article. _____ The Sahara is getting bigger Skimming Skimming Which column(专栏) does this article come from A. Science and technology. B. Tourism guide. C. Health and care. D. Nature and the environment. Task 2 Scanning Divide the passage into 3 parts, and match the main idea to each paragraph. Part1(1): Part2(2.3): Part3(4): The reason for its enlargement and measures to prevent its expansion. The general introduction of the Sahara. The territory enlargement of the Sahara. Task 3 Careful reading The main elements mentioned in paragraph 1 of the Sahara are its_____,_____ and_____. part1 size location population part2(Para2.3) Read this part carefully and do some practice . (1) What explanation method is used in this part A. Illustration（举例说明） B. Definition（下定义） C. Classification（分类） D. Implication（暗示） (2) What can we infer from this part A. Scientists have no idea of its expansion. B. About 75% of the Sahara is mountains. C. The rainfall is enough in the Sahel area. D. It is human beings that are to blame for the desertification. (3) For what purpose was the desertification of the Sahel referred to A. To introduce its important geographic location. B. To show the differences between it and other areas. C. To prove a new “desert” is being born. D. To raise our awareness of environment protection. The Sahara desert is getting bigger The Sahara is getting bigger for less_____ para3 It is because of shrinking_____ It has been caused by_____ They destroyed them for the expansion of _____,_____and _____ rainfall tropical rain forests people cities population growth environment pollution Why Group work Supposing Bruce from Africa and Shi Guangyin from China have a chance to make a dialogue between them... Related questions: What's your opinion about... /How did you deal with... /What changes have you brought about... What do you think we studnts should do... Task 4 Discussion Bruce ShiGuangyin DIALOGUE Bruce: Hi, this is Bruce from Sahara. I heard the news that Maowusu is disappearing, so I want to know what we should do to prevent the Sahara’s expanding. DIALOGUE Shi Guangyin: It’s my pleasure.... Shi Guangyin: Hello, this is Shi Guangyin speaking. Task 5 Group work What should we do Choose energy-efficient equipment 选用节能电器 Use fewer plastic bags 少用一 ... ...
