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1、Unit 4 Global Warming 目标聚焦：1、人类当今面对的环境问题，主要探讨了“全球变暖”和“节约能源”等方面的问题。2、学会使用表达同意或不同意的句型，及表达指责和抱怨的句型。3. 复习“it”的全部用法。 Part 1: Warming Up, Pre-reading, Reading & Comprehending预习案一 词汇英译汉1. consume 词性_ 词义_ 2. random词性_词义_ 3. phenomenon词性_词义_复数_4. subscribe词性_词义_ 短语_5. fuel词性_词义_ 6. data词性_词义_7. tend词性_词义_ 8.
2、 tendency 词性_ 词义_ 9. trend词性_词义_ 10. data 词性_词义_ 11. catastrophe词性_词义_ 12. flood词性_ _词义_ 13. drought词性_ _词义_ 14. famine词性_词义_ 15. oppose词性_词义_ 16. opposed词性_词义_ 短语_17. mild词性_ 词义_ 18. environmental 词性_词义_ 19. consequence词性_ 词义_ 20. state词性_ _ 词义_21. range词性_词义_ 22. glance词性_ _词义_23. steady词性_词义_ adv
3、 _ 24. widespread 词性_词义_ 25. average 词性_ _词义_26. existence词性_词义_ 27. outer词性_ _词义_短语: 28. 发生，造成_ 29. 同意，赞成，订购 _30. 大量_ 31. 导致_ 32. 反对_33. 即使_ 34. 继续_ 35. 大体上 基本上_二 Reading 课前自学1. Choose the best answer according to the text.1) Who found out the amount of carbon dioxide in the atmosphere from 1957 to
4、 1977?A. Dr. Janice Foster. B. Charles Keeling.C. George Hambley. D. Sophie Armstrong.2) The author probably agrees that _A. actually global warming is good for man. B. we should do nothing about the global warming.C. catastrophes will happen if the globe keeps on warming.D. a lot remains to be foun
5、d out about the effects of global warming.2. True (T) or false (F):1) The temperature last century didnt increase much.2) Everyone believes that global warming is caused by the activities of humans.3) Janice Foster believes that global warming is caused b the burning fossil fuels.4) Natural gas is a
6、 greenhouse gas.5) Carbon dioxide is a byproduct of burning fossil fuels.6) People accept Charles Keelings data because he took accurate measurements.7) Flooding could be one of the effects of future global warming.8) George Hambley believes scientists are just guessing about the effects of global w
7、arming.9) George Hambley is worried about the effects of carbon dioxide on plant growth.10) It is clear what the effects of global warming will be.3. Read the text and fill in the passage : The earth is becoming warmer.1)_(compare) to other natural changes, the temperature is rising at a rapid incre
8、ase. So 2)_has this come about and does it matter? All scientists subscribe to the view3)_ the increase in temperature is due to the burning of fossil fuels to produce energy. Some byproducts are called “green house” gases, the most important one of 4)_is carbon dioxide. When huge quantities of extr
9、a carbon dioxide are added to the atmosphere, more heat energy tends to 5)_(trap) in the atmosphere causing the temperature to rise. It was Charles Keeling6)_ made measurements of the carbon dioxide The attitudes towards this are 7)_（complete）different. Some think the tread would be a catastrophe. O
10、thers are opposed 8)_this view and believe that we should not worry about high levels of carbon dioxide in the air. Greenhouse gases continue to build up in the atmosphere. Even9)_we start reducing the amount of carbon dioxide and other greenhouse gases, the climate is going to keep on warming for d
11、ecades10)_ centuries. 探究案一、 重点词汇探究 . 阅读并翻译下列句子,体会其用法的不同,并进行归纳总结.Part 1 (Paragraph 1)1. It is a rapid increase when _ _other natural changes. comparewith 把和比较 (同类事物比较)_ _ him, I am fast. compareto 把比作(抽象概念的比喻)Life _often _ _voyage.我们把儿童比作花。_2. So how has this _ _(发生，产生) and does it matter?翻译：How did it come about? _ 常见词组：(查字典，写出短语的汉语意思)come across_come round_come along_come to_come out_ come to oneself_come up with_【链接高考】Its already 10 oclock . I wonder how it _ that she
