课件40张PPT。The project has been under discussion in China since the idea of the dam was first put forward in 1919.The Three Gorges Dam is both a marvel of engineering and the greatest challenge its designers have ever faced.The Three Gorges Dam has been engineered to store over 5 trillion gallons(加仑)of water and to withstand(经得起) an earthquake of 7.0 on the Richter scale(里氏级)．In addition, the government says the dam will control terrifying floods and provide electrical power to China's growing cities.Like China's Great Wall，it will be one of the few man-made structures that can be seen from space.The Chinese government and the dam's engineers think of the project as a symbol of national pride.教师用书独具演示●教学目标 本课时主要是通过学生对学案所给出的内容的学习，了解本课文中所出现的词汇，初步了解课文以及相关的背景知识，对下一堂课对课文的全面理解起到一个铺垫作用。●教学地位 该部分包括三个活动，要求学生根据提供的词汇、问题和三篇小短文，围绕人造工程(man-made projects)展开口头表达练习，为本模块的学习作准备。●新课导入建议 在阅读前，要求学生两人一组，先讨论问题How much do you know about the Great Wall of China/Hong Kong International Airport/the Three Gorges Dam？然后用关键词记下主要信息；根据学生的问答的情况然后导入新课。演示结束 Ⅰ.篇章结构 阅读P53的文章，完成下面表格(每空不超过3个词)【答案】 1.poem 2.suggested 3.Description 4.construction 5.power station 6.Controlling 7.Generating 8.Disadvantages 9.historical 10.SubmergingⅡ.语篇理解 阅读P53的Reading and Vocabulary部分，从每题所给的3个选项中选出最佳答案 1．Why is the Three Gorges Dam constructed? A．To harness the Yangtze River. B．To control flooding and provide power for the central region of China. C．To realize Mao Zedong's dream.2．Who came up with the idea of constructing the dam? A．Mao Zedong. B．Sun Yat-sen. C．The government.3．What is the benefit after the construction? A．Many cities，towns and villages have been flooded. B．More than one billion people in the region have moved from their homes. C．The Three Gorges Dam area has become one of the most beautiful areas of China.4．What can we learn from the text? A．The Three Gorges Dam is the biggest construction project in China. B．The dam makes sure that the Yangtze River won't cause floods. C．China's electricity is mainly generated by burning coal.5．What does the writer think of the construction of the Three Gorges Dam according to the passage? A．There will be more advantages. B．It will bring some problems. C．The disadvantages are much more than advantages. 【答案】 1－5 B B C C AⅢ.课文缩写 用所给单词或短语的正确形式完成课文缩写 construction；equal to；some of which；come true；cost；remove；generate；historical；reservoir；cause The Three Gorges Dam is nearly 200 meters high and 1.5 kilometers wide.It is the largest hydroel-ectric power station and dam in the world and 1. more than any other 2. project in history. The dam will 3. electricity 4. about 40 million tons of coal without 5. so much air pollu ... ...
