北师大版高中英语模块8U22 Lesson 1.ppt

The Greenhouse Effect Without the greenhouse heating, the Earth’s average temperature would be only about -73o C (-100 oF); even the oceans would be frozen under such conditions, just like the Moon and the Mars. Which countries do you think contribute more to global warming? a) developed countries b) developing countries What will you do every day to help reduce greenhouse gases? Buy the recycled products Recycling the bottles Paper recycling Say “No” to plastic bags Plant trees 1. In the last few decades, scientists have reached consensus and reported that human beings are causing changes in the Earth’s climate---something previously seen as beyond our control. Language points [分析] 本句是一个主从复合句。reached和reported是并列谓语动词，reported后接一个that引导的宾语从句，其中something作 ___________________________ 的同位语，previously seen as beyond our control为过去分词短语作something的定语。beyond one’s control意为“超出……的控制，不受……的控制”。 changes in the Earth’s climate [句意] 最近几十年，科学家们一致认为，人类正在引起地球的气候变化———而这在以前看来是我们不能控制的。 [仿写] Due to circumstances ________ ____ ________, the performance had to be cancelled. 因为我们无法控制事态，演出不得不被取消。 beyond our control? 2. They claim that in the last 50 years, gases pumped into the Earth’s atmosphere by the factories and vehicles have been speeding up the process of global warming and affecting our climate. [分析] 本句是一个主从复合句。that从句作claim的宾语；在该从句中，主语为gases，speeding up和affecting作并列谓语动词，affecting前省略了have been；pumped into ... vehicles是过去分词短语作定语，修饰 _____，相当于定语从句that / which are pumped into ... vehicles。 gases [句意] 他们声称，在过去的五十年间，工厂和汽车排放入大气层中的气体加速了全球变暖的进程，影响了我们的气候。 What is global warming? What will happen with global warming? Will global warming affect the life of North Polar Bear? What will happen to penguins because of global warming? What are the causes of global warming? traffic Factory Mars Moon Developed countries -- more industry and technology After we learn this lesson, we can get all the answers to the quetions. Lets go! Para 1 Para 2 Para 3 Para 4 Para 5 What can we do t