選修六Unit4Globalwarming教學設計

1、Unit 4 Global warming Reading(教學設計 )富源一中劉勝麗教學目標知識目標 ：(1) 掌握閱讀的方法和技巧，讓學生了解地球溫度上升的現(xiàn)象、原因及影響。(2) 掌握文中“ it ”在強調(diào)句中的用法。能力目標 ：能較好地運用泛讀和精度的閱讀技巧，準確地從文中找到關鍵信息。德育目標 ：(1) 通過學習，幫助學生樹立“節(jié)約能源，保護環(huán)境”的主人翁意識。(2) 關愛生命，愛護環(huán)境，學會競爭和合作，建立自信心和集體榮譽感。情感目標 ：通過學習調(diào)動學生的學習積極性，讓學生樹立正確的世界觀和人生價值觀。教學重點 ：提高學生對英語學習的興趣和積極性，較好地掌握泛讀和精讀的方法。教學難

2、點：如何讓學生較好地掌握泛讀和精讀的方法，便把所學知識運用于高考中。教學方法：(1) 以學生為主體，教師為主導，泛讀和精讀相結(jié)合。(2) 采用討論、協(xié)作、探究、競爭的教學模式， 引導學生靈活運用所學知識。(3) 評價激勵表運用于教學：即對小組在整節(jié)課中的綜合表現(xiàn)給打分讓組與組之間有個比較，從而達到激勵上進的效果。如下表所示： G 代表 Group; 根據(jù)班級情況可分成8 個小組組別G1G2G3G4G5G6G7G8參考度合作度表現(xiàn)度（競爭度）準確度遵紀度總分Teaching proceduresStep1: Greetings and Lead-inQuestions：(1) Are you h

3、ot ?(1) Compared to the past few years,whatsthe weather like this year ?(2)What causes the global warming?Human activity or a random but natural phenomenon?(3) show some pictures to the students.( 設計意圖：通過提問和圖片展示引出本節(jié)要討論的話題全球在變暖。 )Step2： Fast-readingReading Comprehension ILet the students fast read th

4、ethe passage and then answer the following questions.1. What s the main topic of the article?2. Who wrote the magazine article? What is name of the magazine?3. What has caused global warming?4.What do scientists think makes the earthstemperature go up?5. How does“ greenhouse effect” come about?Answe

5、rs:1. It s about global warmingthe warming of the earth.2.They are Dr.Janice Foster,Charles Keeling and George Hambley.3.Human activity.4.The burning of fossil fuels.5. It comes about when small amounts of gases in the atmosphere trap heat from the sun and therefore warm the earth.（設計意圖：訓練學生歸納、總結(jié)的能力

6、）Reading Comprehension II( pair work)Read the article again.Are these statements true or false( P27)? True(T) or False(F) questions.()1.The temperature in the last century didn seemt to increase much.()2. Everyone believes that global warming is caused by the activities ofhumans.()3. Janice Foster b

7、elieves she can measure the future global rise intemperature.()4. The rise in carbon dioxide is causing a steady increase in global warming.()5. George Hambley believes that global warming will do good rather thanharm to the earth.() 6. It is clear what the effects of global warming will be.Answers:

8、 1.T2.T3.F4.T5.T6.F（設計意圖：訓練學生積極參與、協(xié)作、競爭的能力）Reading Comprehension IIIGet the students read the passage again and ask some students answer the following questions.1.The purpose of the first paragraph is to _.A.introduce the writerB. explain a changeC. introduce the topicD. raise a question2. The graph

9、s are used to _.A. illustrate points by providing evidenceB. tell the change of temperatureC. tell the content of carbon dioxide in the airD. interest the readers3. Greenhouse gases refer to_.A. carbon dioxideB. the burning of fossil fuelsC. byproducts of the burning of fossil fuelsD. coal, natural

10、gas and oil4. Greenhouse effect _.A. is a natural phenomenonB. happens when there s too much carbon dioxideC. does great harm to human beingsD. makes life for human beings better5. _ found out the amount of carbon dioxide in the atmosphere from 1957 to1997.A. Dr. Janice FosterB. Charles KeelingC. Ge

11、orge HambleyD. Sophie Armstrong6. Which of the following statements is True? A.Burning fossil fuels causes the global warming.B. We will have more food with global warming.C. Global warming means disasters to humans.D. More greenhouse gases will gather in the atmosphere.Answers: 1 5 CACAB 6.D設計意圖：進一

12、步訓練和提升學生快速閱讀，捕捉文中信息的能力。Step3： Careful- reading（Group work）Let the students read the passage carefully and discuss the following questions in groups,then fill in the chart below. The whole class will be 8 groups.The different ideas between Dr. Janice Foster & George HambleyDr. Janice FosterGeorge

13、 HambleyCarbon dioxide has caused the globalMore carbon dioxide is a (4)_temperature to(1)_. An increase thing,of five degrees would be awhich makes crops (5)_(2)_andcouldbe(3)_.and will encourage (6)_Fill in the chart:G1(1)G2 (2)G3(3)G3(4)G5 (5)G6(6)Comment:G7(1) (2) (3)G8(4) (5) (6)Answers: (1)go

14、up(2) catastrophe(3) very serious(4) positive(5) produce more(6) a greater range of animals設計意圖：訓練和提升學生精讀的能力，同時激發(fā)他們積極參與、協(xié)作、競爭的熱情和意識。Step4: Summary(1) Get the students master the method of fast-reading and careful-reading.(2) Get the students discribe the main idea of the passage using their own words.(3) Get the students learn to live a low-carbon life.Step5: Homework1. Prepare a debate in groups.2. Surf the Internet for more information about global warming.Step6: 主要板書Unit 4 Global warming ReadingQuestions:1. What s