Book6英语必修六-Unit4-Global-warming-Reading-精品课件.ppt

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1、1. Have you ever seen a greenhouse?is made of glass used for growing plants, especially during cold weather.2. How does the greenhouse work?The air inside was warm because the glass traps (挡住挡住, 吸收吸收) the heat from the sun and keeps it from escaping (逃跑逃跑). This makes the greenhouse heat up (热量热量上升上

2、升) and so the plants can grow Throughout (在在期间期间) the cold period.3. What are Greenhouse Gases?Methane4Ozone51Carbon dioxide2Water vapor1 1Nitrous oxide34. Greenhouse EffectGlobal warmingGreenhouse gases trapped the heat from the sun, which causes the temperature of earth goes up. THE EARTH IS BECOM

3、ING WARMER BUT DOES IT MATTER? Reading 1) How many paragraphs does the reading 2) Make a division of the text.Read the passage quickly (3)text consist of? Please number them.Fast-ReadingMain ideas of each part:Introduce a debate over the issue of global warming. raising a questionHow global warming

4、comes about.giving examples,using graphs, explanation List two different attitudes among scientists towards global warming.Its up to readers to think and decide whether people should do something about global warming or not.giving examples, making contrastleaving a questionAre the risks too great?So

5、 can you predict the future of the global warming? True or false?1. The temperature in the last century did not seem to 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.T

6、TF4. 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.TTF Who writes this article?Sophie Armstrong of Earth CareWhat rose abou

7、t one degree Fahrenheit?The temperature of the earth.Careful readingIntroduction of global warming. It is a rapid increase when compared to other natural changes. compare vt. 1)比较比较; 对照对照 comparewith表示表示“把把与与相比相比(同类相比同类相比)” 如：如： Language points Compare your answers with those at the back of the book

8、 to see if they are right. 把你的答案同书后面的答案对照一下把你的答案同书后面的答案对照一下, 看看是否正确。看看是否正确。2) 喻为喻为; 比拟比拟compareto 表示表示“把把比做比做(异异类相比类相比, 比喻比喻)” 如：如： Mans life is often compared to a candle.人生常被比为蜡烛。人生常被比为蜡烛。Shakespeare compared the world to a stage. 莎士比亚把人世比做舞台。莎士比亚把人世比做舞台。知识拓展知识拓展compared to /with 与与相比相比, 一般在句子中作状语

9、。一般在句子中作状语。Compared to/with many women, she was indeed very e about: 发生发生, 造成造成, 相当于相当于happen你能告诉我事故是怎么发生的吗？你能告诉我事故是怎么发生的吗？ Can you tell me how the accident came about?随着电的使用随着电的使用, 种种大变化发生了。种种大变化发生了。With the use of electricity, great changes have come about. come out 出现出现; 传开传开; 公开公开come up 发生、举行发生

10、、举行; 出现出现2. So how has this come about and does it matter?come about 是不及物短语。如：是不及物短语。如：1) Please tell me how the accident _. I am still in the dark. (2005 江西江西) A. came by B. came out C. came to D. came aboutD2) Its already 10 oclock. I wonder how it _ that she was two hours late on such a short tri

11、p. (湖北湖北2006) A. came over B. came out C. came about D. came up 解析解析: 已经十点钟了已经十点钟了, 我不知道是怎么我不知道是怎么回事回事, 这么短的路程她迟到了两个小时。这么短的路程她迟到了两个小时。come over 来访来访come out 出来出来, 出版出版come up 出现出现C2. _1. _(2-5)How global warming comes about?the burning of fossil fuels human activityCarbon dioxideMethaneWhat are the

12、Greenhouse gases?1.2.3.Water vapor3. There is no doubt that.doubt肯定句中肯定句中doubt多接多接whether (一般不用一般不用if代替代替) 同位语从句。如同位语从句。如: Theres some doubt _ hell keep his promise. 他会不会信守诺言还难说。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。她怀疑新书是否会畅销。whetherwhether Language points 否定句中否

13、定句中doubt多接多接that同位语从句。如同位语从句。如: There is no doubt _ they will ask you for help. 毫无疑问毫无疑问, 他们会请你帮忙的。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。我毫不怀疑你会成功的。thatthat考点考点1 There is no doubt that .是固定是固定句型句型, 意为意为“毫无疑问毫无疑问”, that引导的引导的是同位语从句，用来进一步补充说明是同位语从句，用来进一步补充说明doubt的具体内容。如：的具体内容。如：Some

14、 researchers believe that there is no doubt _ a cure for AIDS will be found. (广东广东2005)A. which B. that C. what D. whetherB4. phenomenon n. 现象现象; 奇迹奇迹; 罕见的人才罕见的人才或事物或事物eg: 雨雪是天气现象。雨雪是天气现象。Rain and snow are phenomena of the weather.eg: 贝多芬是音乐家中的天才。贝多芬是音乐家中的天才。Beethoven was _ among musicians.pl. pheno

15、mena a phenomenon5. subscribe to1) 同意同意; 支持支持I dont subscribe to such views. 我不同意这样的观点。我不同意这样的观点。 2) 对对捐款捐款Many people subscribed liberally to the relief fund. 许多人为救灾基金慷慨解囊。许多人为救灾基金慷慨解囊。 3) (在文件等下面在文件等下面)签名签名He subscribed his name to a petition.他在请愿书上签名。他在请愿书上签名。4) 订阅订阅(书籍等书籍等)He subscribed to Reade

16、rs Digest.他订阅他订阅读者文摘读者文摘。6. quantity n. 数量数量; 量量“a large/small quantity of +不不可数名词可数名词和和可可数名词复数数名词复数”表示表示“大量的大量的/少量的少量的”, 也可以用也可以用“large/small quantities of +不可数名词或可数名词复数不可数名词或可数名词复数”来表达。来表达。用法归纳用法归纳: a quantity of 大量的大量的 quantities of 大量的大量的 There is a small quantity of water left in the bottle. Sh

17、e has quantities of good clothes.特别提示特别提示a quantity of 后可接不可数名词或后可接不可数名词或可数名词的复数形式。当它修饰名词可数名词的复数形式。当它修饰名词作主语时作主语时, 谓语动词用单数谓语动词用单数; 而而quantities of后同样可接不可数名词后同样可接不可数名词或可数名词的复数形式或可数名词的复数形式, 但谓语用复数。但谓语用复数。amounts of + 不可数名词充当句子不可数名词充当句子的主语时的主语时, 其谓语动词用复数。其谓语动词用复数。7. go up 1) 上升上升Prices have gone up aga

18、in. 物价又上涨了。物价又上涨了。 2) 被建造起来被建造起来New factories are going up everywhere. 到处在兴建新工厂。到处在兴建新工厂。 3) 被焚毁被焚毁The whole building went up in flames. 整幢楼被焚毁了。整幢楼被焚毁了。 8. It was a scientist called Charles Keeling who made accurate measurements of the amount of carbon dioxide in the atmosphere from 1957 to 1997. 是

19、一位名叫查尔斯是一位名叫查尔斯奎林的科学家把奎林的科学家把1957至至1997年期间大气层中二氧化碳的含量年期间大气层中二氧化碳的含量作了精确的统计。作了精确的统计。解析解析: 该句是一个强调句。该句是一个强调句。9. result in 结果结果; 致使致使; 导致导致主语主语: in 的宾语的宾语:起因起因结果结果Acting before thinking always results _ failure.做事不先考虑总会导致失败。做事不先考虑总会导致失败。The accident resulted _ the death of two people.这场意外事故造成两人死亡。这场意外事

20、故造成两人死亡。ininresult from 起于起于, 由于由于, 由由引起引起主语：主语： from 的宾语：的宾语：His sickness resulted _ eating too much. 起因起因结果结果fromWhat are the effects of global warming?v a rise in the sea level v Severe storms, droughts, famines, the spread of diseases, and the disappearance of speciesv Make plants grow fastereff

21、ects10. On the other hand, there are those, like George Hambley, who are opposed to this view, believe that we should not worry about high levels of carbon dioxide in the air.在另一方面在另一方面, 还有一些人还有一些人, 对这一观点对这一观点持反对态度持反对态度, 像科学家乔治像科学家乔治 汉布利汉布利, 他们认为我们不必担心空气中高含量他们认为我们不必担心空气中高含量的二氧化碳。的二氧化碳。分析分析: 该句是一个主从复

22、合句。主句为该句是一个主从复合句。主句为there are those, like scientist George Hambley 作句子的作句子的插入语插入语, who引导的引导的定语从句定语从句修饰修饰those, 且在该定语从句中且在该定语从句中其谓语动词其谓语动词believe又带有又带有that引导的引导的宾语从句宾语从句。句子的主要部分可以表示为。句子的主要部分可以表示为: . there are those who believe that . on the other hand: 另一方面另一方面Id like to eat out, but on the other han

23、d I should be trying to save money.I want to go to the party, but on the other hand I ought to be studying. 我想去参加聚会我想去参加聚会, 但从另一方面来说但从另一方面来说, 我应该留下来学习。我应该留下来学习。11. oppose vt. 反对反对; 反抗反抗 如：如：I am opposed to going shopping with others.我反对与他人一起外出购物。我反对与他人一起外出购物。oppose sth./doing sth. 反对某事反对某事/做某事做某事be

24、opposed to sth./ to doing sth. 反对某事反对某事/做某事做某事oppose后若接动词后若接动词, 则用其动名词形式，则用其动名词形式，而不用动词不定式。而不用动词不定式。oppose doing sth.= object to doing sth. 反对做某事反对做某事The young man opposed/objected to turning to his parents for help.这个年轻人反对向他的父母求助。这个年轻人反对向他的父母求助。易混辨析易混辨析oppose (尤指采取行动尤指采取行动)反对反对, 反抗反抗(某事某事)be oppose

25、d to 一方面相当于一方面相当于be against“反对反对”; 另一方面相当于另一方面相当于be opposite to“相对相对”。12. consequence n. 结果结果, 后果后果, 影响影响nin consequence 因此因此nas a consequence 结果结果nas a consequence of 由于由于的结果的结果nIt rained yesterday and in consequence the match was canceled. nHe studied hard, and in consequence he passed the exam. +

26、n.13. state +that从句从句 +wh-从句；从句；他已公开声明他会支持那项政策。他已公开声明他会支持那项政策。He has publicly _ _ _ for the policy.stated his support我听见那位官员说不接纳儿童。我听见那位官员说不接纳儿童。I heard the official state that they would not accept children.合同清楚地叙述了那项工作应在何时完成。合同清楚地叙述了那项工作应在何时完成。The contract stated when the work should be finished.v

27、. 陈述陈述, 声明；声明； n. 状况状况, 情况情况; 国家；国家；14. range v. 排列排列, 使成行使成行; 偏袒偏袒, 站在站在的方面的方面n. 范围范围(尤指从尤指从到到各种种类各种种类, 可供选择的可供选择的范围等范围等, 可加不定冠词可加不定冠词); 排列排列 beyond the range of 超越超越的范围的范围out of ones range 某人达不到的某人达不到的这家商店商品品种多。这家商店商品品种多。The shop keeps _.常可用于常可用于: 1) 被动结构被动结构 2) range oneself；3) range from to / be

28、tweenand 从从到到不等不等a wide range of goods老师令其学生沿着小径排队。老师令其学生沿着小径排队。The teacher _ along the path.温度在温度在15度到度到35度之间。度之间。The temperature _.我们应当列身于法律与秩序的一边。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 ourselves15. even if /though: 即使即使; 虽然虽然He will come on time even though it rains. 即使下雨即使下雨, 他还是会准时来的。他还是会准时来的。 I wouldnt tell you even if I knew. Even if she survives, shell never fully recover.Even though hes 24 now, hes still like a little child.I can still remember, even though it was so long ago.