Unit 4 Global warming reading（2）
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| 名称 | Unit 4 Global warming reading（2） |
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| 格式 | rar | ||
| 文件大小 | 672.5KB | ||
| 资源类型 | 教案 | ||
| 版本资源 | 人教版（新课程标准） | ||
| 科目 | 英语 | ||
| 更新时间 | 2010-07-23 00:00:00 | ||
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课件27张PPT。Unit 4 Global warmingReview the text and answer the questions.1. Does Sophie Armstrong support a clear opinion?
2. Does George Hambley believe that we should worry much about the global warming?No. he doesn’t state it clearly.No, he doesn’t.3. How has the global warming come about?①Human activity --- burning of fossil
fuels.② Greenhouse effect --- greenhouse gases
--- we need those gases.③ Huge quantities of extra carbon.4. What are the effects of global warming?④ Encourage a greater range of animals.①The sea level rises.② There severe storms, droughts, famines, the spread of diseases, and destruction of species.③ Make plants grow faster. Crops will produce more.1. Who found out the amount of carbon dioxide in the atmosphere from 1957 to 1977? A. Dr. Janice Foster. B. Charles Keeling. C. George Hambley. D. Sophie Armstrong.Review the text and choose the best answersb2. "But there are some very different attitudes among scientists towards this issue.” “issue" here means the same as the one in___ . A. I bought the new stamp the day of its issue. B. They are talking about one of the key issues in the election campaign. C. The government is expected to issue a statement about the election. D. The magazine has 12 issues each year.b 3. 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 found out about the effects of global warming.
cThe different ideas between Dr. Janice Foster & George Hambleygo upcatastrophevery seriouspositiveproduce morea greater range of animals1. The temperature last century didn’t increase much.
2. Everyone believes that global warming is caused by the activities of humans.
3. Janice Foster believes that she can measure the future global rise in temperature.True or false TTF4. The rise in carbon dioxide is causing a steady increase in global warming.
5. George Hambley believes that global warming will do good rather than harm to the earth.
6. It is clear what the effects of global warming will be. TTFA : We shall do something about global warming.B: We shall do nothing about global warming.DebateDiscovering useful words and expressions It is a rapid increase compared to most natural changes. compare: vt. 比较；对照 compare…with…表示“把……与……相比（同类相比）”
Compare your answers with those at the back of the book to see if they are right. 把你的答案同书后面的答案对照一下，看看是否正确。 My handwriting can not be compared with my father’s. 我的书法不能与我父亲的相比。 compare: vt. 喻为；比拟
compare…to… 表示“把……比做……（异类相比，比喻）” Man’s life is often compared do a candle.
人生常被比为蜡烛。 Shakespeare compared the world to a stage.compared to /with “与……相比”, 常作状语
Compared to/with many women, she was indeed very fortunate.莎士比亚把人世比做舞台。2. How has this come about and does it matter?come about: “发生，造成” , 相当于happen
When Mother woke up, she didn’t know what had come about. I’ll never understand how it came about that you were late three times a week.
你知道那次空难是怎么发生的吗?Do you know how the air accident came about? 3. There is no doubt that….一、 doubt作不可数名词，意思是“疑惑;怀疑”。
①肯定句中doubt多接whether (一般不用if代替) 同位语从句。如:
There's some doubt ________he'll keep his promise. 他会不会信守诺言还难说。
She had her doubts ________the new book would sell well. 她怀疑新书是否会畅销。
②否定句中doubt多接that同位语从句。如:
There is no doubt ______they will ask you for help. 毫无疑问,他们会请你帮忙的。
I have no doubt ______you will succeed.
我毫不怀疑你会成功的。 whetherwhetherthatthat二、doubt可作及物动词，作"怀疑;不能肯定;不大相信"解,一般不用进行时态。
①用于否定句或疑问句,后接that引导的宾语从句。如:
I don't doubt ______he is telling the truth.
我毫不怀疑他在讲真话。
Do you doubt ______he will win the match?
你怀疑他会赢这场比赛吗?
②用于肯定句,一般接whether 或if引导的宾语从句.如:
I doubt __________we will make a profit out of it.
我认为我们不可能从此事中获利。
We doubt __________she will be persuaded.
我们不知道她会不会被说服。 whether/ifwhether/ifthatthat4. All scientists subscribe to the view that the increase in the earth’s temperature is due to ...subscribe to:同意；赞成；定购
No one but mad people would subscribe to such views.
只有疯子才会同意这样的观点。
Do you subscribe to her view of the state of the economy?
你是否同意她对经济状况所持的看法？
Which newspaper do you subscribe to?
你订阅哪一种报纸?5. result inresult in 结果; 致使; 导致Acting before thinking always results in failure.
做事不先考虑总会导致失败。
The accident resulted in the death of two people.
这场意外事故造成两人死亡。result from：起于, 由于, 由…引起
His illness resulted from bad food.
他的病是由于吃了变质的食物所致。
His sickness resulted from eating too much.6. rangerange：n. 范围；；种类；排列
beyond the range of… 超越……的范围
out of one’s range 某人达不到的
这家商店商品品种多。
The shop keeps a wide range of goods.
在这个价格范围内, 有好几种汽车可供选购。
Several cars are available within this price range. range：v. 排列, 使成行；偏袒，站在……的方面
常可用于:
1. 被动结构
2. range oneself；
3. range from… to … / between…and …老师令其学生沿着小径排队。
The teacher _________________along the path.
温度在15度到35度之间。
The temperature__________________________
我们应当列身于法律与秩序的一边。
We should __________________ on the side of law and order.ranged his studentsranges from 15 to 35 degreesrange ourselves7. build up：逐步建立，增加，增进build up one’s fortune
build up one’s strength
build up the business
This built up my hope after the interview.
Sediment (沉淀物) builds up on the ocean floor.养精蓄锐累积财富扩大/发展生意 8. Some byproducts of this process are called “greenhouse” gases, the most important one being carbon dioxide.the most important one being carbon dioxide 是一个独立主格结构，由名词+分词构成，在句中做补充说明或伴随的状况。 ________________(时间允许的话)，I will show you around the city.
_____________________(今天是星期天)，I don’t have to go to work.
_______________________________(没有人要说的话)，the meeting was closed.Today being SundayTime permittingNobody having any more to say 这是一个含蓄虚拟条件句有时假设的情况并不以条件从句形式表示出来，而是通过一个介词短语或其他方式表示。常用的词或短语有：without, but for, but that，otherwise, or, but等。
Without your help ( = If we had not had your help), we could not have succeeded．
要是没有你的帮助，我们是不会成功的。 9．Without the ‘green house effect’, the earth would be about thirty-three degrees Celsius cooler than it is.Ex. 2 Go over the new words and phrases in the previous sections. Then complete each sentence with one of those new words or phrases.Answers：
1. data; kept on 2. quantities; run out
3. build up; catastrophe 4. come about
5. consequence 6. phenomenon
7. graph 8. per
9. even if 10. resulted inHomework Finish exercises 1-2 on pages 63-64.
Review the text and find out the difficult sentences to you. Pay attention to the use of “it”.
Finish exercises on page 29.
2. Does George Hambley believe that we should worry much about the global warming?No. he doesn’t state it clearly.No, he doesn’t.3. How has the global warming come about?①Human activity --- burning of fossil
fuels.② Greenhouse effect --- greenhouse gases
--- we need those gases.③ Huge quantities of extra carbon.4. What are the effects of global warming?④ Encourage a greater range of animals.①The sea level rises.② There severe storms, droughts, famines, the spread of diseases, and destruction of species.③ Make plants grow faster. Crops will produce more.1. Who found out the amount of carbon dioxide in the atmosphere from 1957 to 1977? A. Dr. Janice Foster. B. Charles Keeling. C. George Hambley. D. Sophie Armstrong.Review the text and choose the best answersb2. "But there are some very different attitudes among scientists towards this issue.” “issue" here means the same as the one in___ . A. I bought the new stamp the day of its issue. B. They are talking about one of the key issues in the election campaign. C. The government is expected to issue a statement about the election. D. The magazine has 12 issues each year.b 3. 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 found out about the effects of global warming.
cThe different ideas between Dr. Janice Foster & George Hambleygo upcatastrophevery seriouspositiveproduce morea greater range of animals1. The temperature last century didn’t increase much.
2. Everyone believes that global warming is caused by the activities of humans.
3. Janice Foster believes that she can measure the future global rise in temperature.True or false TTF4. The rise in carbon dioxide is causing a steady increase in global warming.
5. George Hambley believes that global warming will do good rather than harm to the earth.
6. It is clear what the effects of global warming will be. TTFA : We shall do something about global warming.B: We shall do nothing about global warming.DebateDiscovering useful words and expressions It is a rapid increase compared to most natural changes. compare: vt. 比较；对照 compare…with…表示“把……与……相比（同类相比）”
Compare your answers with those at the back of the book to see if they are right. 把你的答案同书后面的答案对照一下，看看是否正确。 My handwriting can not be compared with my father’s. 我的书法不能与我父亲的相比。 compare: vt. 喻为；比拟
compare…to… 表示“把……比做……（异类相比，比喻）” Man’s life is often compared do a candle.
人生常被比为蜡烛。 Shakespeare compared the world to a stage.compared to /with “与……相比”, 常作状语
Compared to/with many women, she was indeed very fortunate.莎士比亚把人世比做舞台。2. How has this come about and does it matter?come about: “发生，造成” , 相当于happen
When Mother woke up, she didn’t know what had come about. I’ll never understand how it came about that you were late three times a week.
你知道那次空难是怎么发生的吗?Do you know how the air accident came about? 3. There is no doubt that….一、 doubt作不可数名词，意思是“疑惑;怀疑”。
①肯定句中doubt多接whether (一般不用if代替) 同位语从句。如:
There's some doubt ________he'll keep his promise. 他会不会信守诺言还难说。
She had her doubts ________the new book would sell well. 她怀疑新书是否会畅销。
②否定句中doubt多接that同位语从句。如:
There is no doubt ______they will ask you for help. 毫无疑问,他们会请你帮忙的。
I have no doubt ______you will succeed.
我毫不怀疑你会成功的。 whetherwhetherthatthat二、doubt可作及物动词，作"怀疑;不能肯定;不大相信"解,一般不用进行时态。
①用于否定句或疑问句,后接that引导的宾语从句。如:
I don't doubt ______he is telling the truth.
我毫不怀疑他在讲真话。
Do you doubt ______he will win the match?
你怀疑他会赢这场比赛吗?
②用于肯定句,一般接whether 或if引导的宾语从句.如:
I doubt __________we will make a profit out of it.
我认为我们不可能从此事中获利。
We doubt __________she will be persuaded.
我们不知道她会不会被说服。 whether/ifwhether/ifthatthat4. All scientists subscribe to the view that the increase in the earth’s temperature is due to ...subscribe to:同意；赞成；定购
No one but mad people would subscribe to such views.
只有疯子才会同意这样的观点。
Do you subscribe to her view of the state of the economy?
你是否同意她对经济状况所持的看法？
Which newspaper do you subscribe to?
你订阅哪一种报纸?5. result inresult in 结果; 致使; 导致Acting before thinking always results in failure.
做事不先考虑总会导致失败。
The accident resulted in the death of two people.
这场意外事故造成两人死亡。result from：起于, 由于, 由…引起
His illness resulted from bad food.
他的病是由于吃了变质的食物所致。
His sickness resulted from eating too much.6. rangerange：n. 范围；；种类；排列
beyond the range of… 超越……的范围
out of one’s range 某人达不到的
这家商店商品品种多。
The shop keeps a wide range of goods.
在这个价格范围内, 有好几种汽车可供选购。
Several cars are available within this price range. range：v. 排列, 使成行；偏袒，站在……的方面
常可用于:
1. 被动结构
2. range oneself；
3. range from… to … / between…and …老师令其学生沿着小径排队。
The teacher _________________along the path.
温度在15度到35度之间。
The temperature__________________________
我们应当列身于法律与秩序的一边。
We should __________________ on the side of law and order.ranged his studentsranges from 15 to 35 degreesrange ourselves7. build up：逐步建立，增加，增进build up one’s fortune
build up one’s strength
build up the business
This built up my hope after the interview.
Sediment (沉淀物) builds up on the ocean floor.养精蓄锐累积财富扩大/发展生意 8. Some byproducts of this process are called “greenhouse” gases, the most important one being carbon dioxide.the most important one being carbon dioxide 是一个独立主格结构，由名词+分词构成，在句中做补充说明或伴随的状况。 ________________(时间允许的话)，I will show you around the city.
_____________________(今天是星期天)，I don’t have to go to work.
_______________________________(没有人要说的话)，the meeting was closed.Today being SundayTime permittingNobody having any more to say 这是一个含蓄虚拟条件句有时假设的情况并不以条件从句形式表示出来，而是通过一个介词短语或其他方式表示。常用的词或短语有：without, but for, but that，otherwise, or, but等。
Without your help ( = If we had not had your help), we could not have succeeded．
要是没有你的帮助，我们是不会成功的。 9．Without the ‘green house effect’, the earth would be about thirty-three degrees Celsius cooler than it is.Ex. 2 Go over the new words and phrases in the previous sections. Then complete each sentence with one of those new words or phrases.Answers：
1. data; kept on 2. quantities; run out
3. build up; catastrophe 4. come about
5. consequence 6. phenomenon
7. graph 8. per
9. even if 10. resulted inHomework Finish exercises 1-2 on pages 63-64.
Review the text and find out the difficult sentences to you. Pay attention to the use of “it”.
Finish exercises on page 29.