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高中英語(yǔ)人教版選修6 Unit 3 A healthy life Global Warming寫(xiě)作課-廣東番禺中學(xué)

Global Warming寫(xiě)作課教學(xué)設(shè)計(jì) 
授課對(duì)象：廣東番禺中學(xué)高二（4）班 
課型：高二讀寫(xiě)課  寫(xiě)作類型： “Cause and effect” essays  寫(xiě)作話題：Global warming 課題名稱：人教版 Book6 Unit4 Global warming 寫(xiě)作課 設(shè)計(jì)意圖：基于高中英語(yǔ)文本閱讀，提高學(xué)生寫(xiě)作能力 授課時(shí)間：40分鐘 （一）學(xué)生難度預(yù)測(cè) 
作為高二年級(jí)的學(xué)生，雖然完成了課本閱讀部分的學(xué)習(xí)，積累了話題寫(xiě)作的一些短語(yǔ)及結(jié)構(gòu)，但是無(wú)法在寫(xiě)作中有效輸出，教師需要?jiǎng)?chuàng)設(shè)情景，鼓勵(lì)并引導(dǎo)學(xué)生在話題寫(xiě)作中使用相應(yīng)的短語(yǔ)及結(jié)構(gòu)。 （二）語(yǔ)言材料分析 
本課時(shí)是人教版選修6第4單元“Global warming” 的寫(xiě)作課，充分運(yùn)用“i-1”語(yǔ)言材料選材原理，選用外研社版必修3 Module 4 Sandstorms in Asia中“reading and vocabulary”以及北師大版選修8 Unit 22 Global Warming和Natural Disasters中的文段整合成一節(jié)寫(xiě)作課。讓學(xué)生閱讀相關(guān)話題的語(yǔ)篇，探究表達(dá)因果關(guān)系的短語(yǔ)及結(jié)構(gòu)，然后通過(guò)mini-speech的口語(yǔ)活動(dòng)展開(kāi)話題討論，最終完成作文“Save the earth, start from me”。 （三）教學(xué)目標(biāo) 
1.引導(dǎo)學(xué)生通過(guò)閱讀語(yǔ)篇，分析段落和語(yǔ)句，找出表達(dá)因果關(guān)系的方式。 2.鼓勵(lì)學(xué)生勇于表達(dá)自己的觀點(diǎn)，讓觀點(diǎn)具有說(shuō)服力。 3.培養(yǎng)學(xué)生的邏輯思維的思辨能力。 （四）學(xué)習(xí)目標(biāo) 
1.學(xué)生能夠閱讀語(yǔ)篇，分析段落和語(yǔ)句，探究表達(dá)因果關(guān)系的方式。 2.學(xué)生能夠在演講和寫(xiě)作中表達(dá)觀點(diǎn)和論證觀點(diǎn)。 
3.學(xué)生能夠?qū)W會(huì)應(yīng)用相關(guān)詞匯、結(jié)構(gòu)及句型來(lái)表達(dá)因果關(guān)系。 （五）教學(xué)過(guò)程 教學(xué)步驟： 設(shè)計(jì)目的 
Step 1 Lead- in （見(jiàn)第3張幻燈片） 
Get the students to share the sentences from the text concerning cause and effect and discuss about the expressions or structures which show cause and effect  
1. All scientists subscribe to the view that the increase in the earth's temperature is due to the burning of fossil fuels like coal, natural gas and oil to produce energy.  2. It means that more heat energy tends to be trapped in the atmosphere causing the global temperature to go up. 
3. They also agree that it is the burning of more and more fossil fuels that has resulted in this increase in carbon dioxide. 
4. On the one hand, Dr Foster thinks that any trend in which the temperature increases by 5 degrees would lead to a catastrophe.  
5. On the other hand, George Hambley states, "More carbon dioxide is actually a positive thing. It will make plants grow quicker; crops will produce more; it will encourage a greater range of animals — all of which will make life for human 
 
目的： 
引入本節(jié)課的學(xué)習(xí)目的，在語(yǔ)篇中去發(fā)現(xiàn)因果關(guān)系的表達(dá)方式。            
                           
                  
                           
                                     廣州市十二五課題 “基于高中英語(yǔ)文本閱讀, 提高學(xué)生寫(xiě)作能力的實(shí)證研究”“以讀促寫(xiě)”研討課 
 
2 
beings better." 
 
Step 2 Reading （見(jiàn)第4-5張幻燈片） 
1. Get the students to read four paragraphs to find more sentences concerning cause and effect and discover the expressions and structures used to show cause and effect  
Paragraph1                               （北師大版 Unit 22, Lesson 1）  ①Over the last 100 years, the global average temperature has increased by 1°F and many experts insist that the blame for this global warming can mostly be pinned on human activities. ②As a result of increased industry, agriculture, the cutting down of forests, the increase in transport and the burning of fuels, nearly 6 tonnes of carbon dioxide goes into the atmosphere every year for every one of the earth's 6 billion people. ③The amount of carbon dioxide in the atmosphere has risen by more than 30% in the last 250 years with half of this increase occurring since 1960. ④Given this data, it seems that the link between human activities and rising global temperatures is not merely a coincidence.  
Paragraph 2                               （北師大版 Unit 22, Lesson 1）  ①A temperature increase of 1°Fmay not sound like a lot, but if we continue to produce carbon dioxide and other gases in such huge quantities, we are condemning life on Earth and should expect severe consequences. ②Recent reports warned that global warming will cause terrible climate changes including more frequent flooding, heat waves and droughts. ③Serious diseases will spread and industries that rely on nature such as fishing will be badly affected.④Increased temperatures will also cause the polar ice to melt, raising sea levels and flooding many islands and cities.   
Paragraph 3                               （北師大版 Unit 22, Lesson 3）  ①In the last decade, thunderstorms, floods, earthquakes, typhoons, volcanic eruptions, tsunamis and forest fires have become increasingly common. ②There has been terrible flooding in Asia, Africa, America and Oceania. ③Even Europe has suffered and large areas have been underwater. ④Storms have been getting worse everywhere too, with a growing number of hurricanes hitting the US, and Central America. ⑤Reduced rainfall has affected large areas of Africa for years, leaving irrigation canals dry and many other zones are becoming drier. ⑥For example, the Yellow River, once famous for flooding, failed to reach the sea level at all for 226 days in 1997. ⑦A number of nations have already been in armed conflict over water, and reduced rainfall in the west of the US has resulted in huge forest fires.  
Paragraph 4                                （外研社版必修3 Module 4）  ①Sandstorms are strong, dry winds that carry sand. ②They are often so thick that you cannot see the sun, and the wind is sometimes strong enough to move sand dunes(沙丘). ③The four main places in the world where there are sandstorms are Central Asia, North America, Central Africa and Australia. ④Ren 
  
目的： 
讓學(xué)生閱讀更多圍繞Global warming這個(gè)話題的語(yǔ)篇，去發(fā)現(xiàn)這一話題中涉及到因果關(guān)系的句子所使用的短語(yǔ)和結(jié)構(gòu)，為后面的寫(xiě)作提供句型結(jié)構(gòu)支架。                                     
 
                           
                  
                           
                                     廣州市十二五課題 “基于高中英語(yǔ)文本閱讀, 提高學(xué)生寫(xiě)作能力的實(shí)證研究”“以讀促寫(xiě)”研討課 
 
3 
Jianbo, from Inner Mongolia described a terrible sandstorm he experienced as a child in the desert. ⑤"To have been caught in a sandstorm was a terrible experience," he said.⑥"There was nothing to be done. It was the most frightening and the most dangerous situation I've ever been in. You just had to hope you'd survive. I thought I was going to disappear under the sand." 
Phenomenon/Cause 
Effect/Result 
Expression/Structure 
increased industry, agriculture, 
the cutting down of forests, the 
increase in transport and the 
burning of fuels  
nearly 6 tonnes of carbon 
dioxide goes into the 
atmosphere every year for every one of the earth's 6 
billion people As a result of  
Increased temperatures will also 
cause the polar ice to melt  
raising sea levels and 
flooding many islands and cities -ing  
Reduced rainfall has affected large areas of Africa for years  leaving irrigation canals 
dry 
-ing  
reduced rainfall in the west of 
the US 
huge forest fires  
result in  Sandstorms are often very thick  you cannot see the sun  
so … that … 
2. Summarize the Expressions and structures used to show cause and effect.   Expressions: due to, result in, lead to, as a result of, … 
  Structures: -ing, Non-restrictive attributive clause, so … that …  
Step 3 Mini-speech （見(jiàn)第6-17張幻燈片） 
1. Get students to discuss in groups about some bad phenomena on campus which contribute to global warming and appeal to the schoolmates to take some action. 
2. Get each student to give a mini-speech. 3. Mini-speech presentation in class. 
Step4 Writing（見(jiàn)第18張幻燈片） 
Get students to write a letter of appeal "Save the earth, start from me", using the expressions and structures learned in reading. 
Step5 Peer Assessment（見(jiàn)第19張幻燈片） 
Ask students to exchange and give comments on their classmates’ compositions according to the criteria. 
What do you think of the work Excellent (A) 
Good (B) 
Average (C) 
Poor (D) 
Cause and effect     Appeal  
 
  
 
Assignment（見(jiàn)第20張幻燈片） 
Get the students to find more phenomena outside our school which contribute to 
                        
目的： 
通過(guò)小組討論和mini-speech這種強(qiáng)制性語(yǔ)言輸出的形式，促進(jìn)學(xué)生思辨能力的培養(yǎng)，為下一步的寫(xiě)作輸出提供內(nèi)容素材。 目的： 
要求學(xué)生寫(xiě)一篇作文，寫(xiě)作中要求學(xué)生使用本節(jié)課所學(xué)知識(shí)來(lái)表達(dá)因果關(guān)系，完成從語(yǔ)篇輸入到語(yǔ)篇輸出的整個(gè)環(huán)節(jié)。 目的： 
讓學(xué)生通過(guò)同伴評(píng)價(jià)，驗(yàn)證學(xué)習(xí)成果，通過(guò)欣賞同伴的作文，學(xué)會(huì)分享和積累更多相關(guān)話題和相關(guān)類型的語(yǔ)言知識(shí)。  
目的： 
讓學(xué)生課后反思本課所
 
                           
                  
                           
                                     廣州市十二五課題 “基于高中英語(yǔ)文本閱讀, 提高學(xué)生寫(xiě)作能力的實(shí)證研究”“以讀促寫(xiě)”研討課 
 4 
global warming and write a letter to appeal to everybody to play their part. 學(xué)內(nèi)容，寫(xiě)一篇相同類型的作文，舉一反三。

Global warming寫(xiě)作課學(xué)案
課型定位：寫(xiě)作課  寫(xiě)作類型：“Cause and effect” Essays  寫(xiě)作話題：Global warming
課題名稱：人教版 Book 6 Unit 4 Global warming寫(xiě)作課
設(shè)計(jì)意圖：基于高中英語(yǔ)文本閱讀，提高學(xué)生寫(xiě)作能力
授課對(duì)象：廣東高二3、4班
授課時(shí)間：40分鐘
學(xué)習(xí)目標(biāo)：
讀---閱讀段落, 發(fā)現(xiàn)涉及因果關(guān)系的句子                                                                        
 
讀---閱讀語(yǔ)句，探究表示因果關(guān)系的方法       遷移   寫(xiě)---寫(xiě)一篇Save the earth, start from me的倡議書(shū)

 

說(shuō)---呼吁                                                                                                                      
 
學(xué)習(xí)活動(dòng)：
Activity 1 Share the sentences from the text concerning cause and effect and discuss about the expressions or structures which show cause and effect
 
Activity 2 Read four paragraphs to find more sentences concerning cause and effect and discover the expressions and structures used to show cause and effect
Paragraph 1                                                        （北師大版 Unit 22, Lesson 1）
       ①Over the last 100 years, the global average temperature has increased by 1°F and many experts insist that the blame for this global warming can mostly be pinned on human activities. ②As a result of increased industry, agriculture, the cutting down of forests, the increase in transport and the burning of fuels, nearly 6 tonnes of carbon dioxide goes into the atmosphere every year for every one of the earth's 6 billion people. ③The amount of carbon dioxide in the atmosphere has risen by more than 30% in the last 250 years with half of this increase occurring since 1960. ④Given this data, it seems that the link between human activities and rising global temperatures is not merely a coincidence.
 
Paragraph 2                                                        （北師大版 Unit 22, Lesson 1）
       ①A temperature increase of 1°Fmay not sound like a lot, but if we continue to produce carbon dioxide and other gases in such huge quantities, we are condemning life on Earth and should expect severe consequences. ②Recent reports warned that global warming will cause terrible climate changes including more frequent flooding, heat waves and droughts. ③Serious diseases will spread and industries that rely on nature such as fishing will be badly affected.④Increased temperatures will also cause the polar ice to melt, raising sea levels and flooding many islands and cities.
 
Paragraph 3                                                        （北師大版 Unit 22, Lesson 3）
       ①In the last decade, thunderstorms, floods, earthquakes, typhoons, volcanic eruptions, tsunamis and forest fires have become increasingly common. ②There has been terrible flooding in Asia, Africa, America and Oceania. ③Even Europe has suffered and large areas have been underwater. ④Storms have been getting worse everywhere too, with a growing number of hurricanes hitting the US, and Central America. ⑤Reduced rainfall has affected large areas of Africa for years, leaving irrigation canals dry and many other zones are becoming drier. ⑥For example, the Yellow River, once famous for flooding, failed to reach the sea level at all for 226 days in 1997. ⑦A number of nations have already been in armed conflict over water, and reduced rainfall in the west of the US has resulted in huge forest fires.
 
Paragraph 4                                                          （外研社版必修3 Module 4）
       ①Sandstorms are strong, dry winds that carry sand. ②They are often so thick that you cannot see the sun, and the wind is sometimes strong enough to move sand dunes(沙丘). ③The four main places in the world where there are sandstorms are Central Asia, North America, Central Africa and Australia. ④Ren Jianbo, from Inner Mongolia described a terrible sandstorm he experienced as a child in the desert. ⑤"To have been caught in a sandstorm was a terrible experience," he said.⑥"There was nothing to be done. It was the most frightening and the most dangerous situation I've ever been in. You just had to hope you'd survive. I thought I was going to disappear under the sand."

Phenomenon/Cause	Effect/Result	Expression/Structure

 
Activity 3 Talk about some bad phenomena on campus which contribute to global warming and appeal to the schoolmates to take some action
 
Activity 4 Write a letter of appeal "Save the earth, start from me"
 
Activity 5 Exchange and give comments on your peer’s paragraph.

What do you think of the work	Excellent (A)	Good (B)	Average (C)	Poor (D)
Cause and effect
Appeal

 
Assignment:
Find more phenomena outside our school which contribute to global warming and write a letter to appeal to everybody to play their part
 

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