高二英語選修6第4單元學(xué)案(1)

1、高二英語選修（6 ）unit4 學(xué)案 主備：管小娜 修訂：李富奎 審核：高二英語備課組 1Unit 4 Global warming Period 1 Warming Up，Pre－reading，Reading Learning aims：1.Get stu

2、dents to know about global warming and its effect；2. To enable the students to realize what we can do about global warming.Learning important pointsTo enable the students to learn about global warming and to develop thei

3、r reading ability.Learning difficult pointTo enable the students to talk about what we should do to prevent global warming.Before class（課前自主學(xué)習(xí)）I.重點單詞 重點單詞1._________ v.消費；消耗；耗盡 2. _________ v.趨向；易于；照顧3________

4、_ n.大災(zāi)難；浩劫 4._________ adj.胡亂的；任意的5. _________ v.反對；反抗；與(某人)較量 6_________. n.洪水；水災(zāi)7. _________ v.同意；捐贈；訂閱 8. _________ n.燃料9._________ n.量；數(shù)量10. _________ n.圖表；坐標(biāo)圖；曲線圖11. _________ v.陳述；說明

5、 12. _________ n.結(jié)果；后果；影響13._________ n.資料；數(shù)據(jù) 14._________ v.看一下；掃視 II.重點短語 重點短語1. come about _________ 2.keep on_________3. subscribe to _________4. be opposed to __

6、_______5. _________ 大量的 6. ________即使_7. _________ 上升；增長；升起8 _________依靠，依賴9 _________ 溫室效應(yīng) 10. _________用光，耗盡In class（課上合作探究） （課上合作探究）Learning proceduresStep 1 Warming up1．War

7、ming up by reading and talking：Read through the exercise. Put students in groups to talk about what we use energy for，discuss what are the sources of these energy and whether the following sources are renewable or non－re

8、newable. ___________ ___________ ___________ ___________ __________ __________Things that use energy Sources of energy Renewable/non－renewable coaloil natural gaswind power solar energy nuclear energy lightsheat

9、ing television cassette player video recorder computer fridge hydro－electric 高二英語選修（6 ）unit4 學(xué)案 主備：管小娜 修訂：李富奎 審核：高二英語備課組 3⑥George Hambley believes scienti

10、sts are just guessing about the effects of global warming.( )⑦George Hambley is worried about the effects of carbon dioxide on plant growth.( )⑧It is clear what the effects of global warming will be.( )Task 4．Structure a

11、nalyzing Ask students to read the text carefully and try to find out how many parts they can divide the text into and find out the main idea of each part.

12、 Part Main ideaPart1(Paragraph__) A It's up to readers to think and decide whether people should do something about global warming or not.Part 2(Paragraph

13、s __to __) B To illustrate how global warming comes about.Part 3(Paragraph __) C To introduce a debate over the issue of global warming.Part 4(Paragraph__ ) D To list two different attitudes amon

14、g scientists towards the global warmingStep 4 隨堂達(dá)標(biāo)檢測 隨堂達(dá)標(biāo)檢測The earth is becoming warmer and it is human activity _______1 has caused this global warming .All scientists_________2 to the view that the increase in the ear

15、th’s temperature is _________3 to the burning of fossil fuels. Some byproducts of this process, especially carbon dioxide, are called ‘greenhouse’ gases. Some small amounts of gases in the atmosphere_________4 heat from

16、the sun and therefore warm the earth .So we need those gases .However, the problem begins when we add huge _________5 of extra carbon dioxide into the atmosphere. It caused the global temperature to __________6 up.A scie

17、ntist __________7 Charles Keeling made accurate measurements of the amount of carbon dioxide in the atmosphere. But how high will the temperature _________8 go?_________9 if we start reducing the amount of carbon dioxide