高二英语选修6第四单元_课件reading.ppt

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1、Unit 4 Reading IUnit 4 Reading I The earth is becoming The earth is becoming warmerbut does it matter?warmerbut does it matter?Fast reading1. What is the main topic of the article? Global warming.2.What are the names of the three scientists mentioned in the article? Dr Janice Foster, Charles Keeling

2、, George Hambley.Careful readingPara 1 31.Who wrote the magazine article? What is the name of the magazine?2.Why is the earth becoming warmer?3. What are greenhouse gases?4.Whats greenhouse effect?1.Who wrote the magazine article? What is the name of the magazine? Sophie Armstrong Earth Care2.Why is

3、 the earth becoming warmer? It is human activity that has caused this global warming.3. What are greenhouse gases? Some byproducts of the burning of fossil fuels like coal, natural gas and oil to produce energy are called greenhouse gases.4.Whats greenhouse effect?It is when small amounts of gases i

4、n the atmosphere, like carbon dioxide, methane and water vapour, trap heat from the sun and therefore warm the earth.Para 4 51.Who found out the amount of carbon dioxide in the atmosphere from 1957 to 1977?2.What has resulted in the increase in carbon dioxide?1. Who found out the amount of carbon di

5、oxide in the atmosphere from 1957 to 1977?A. Dr. Janice Foster. B. Charles Keeling.C. George Hambley. D. Sophie Armstrong.B2. What has resulted in the increase in carbon dioxide? It is the burning of more and more fossil fuels that has resulted in this increase in carbon dioxide.Para 6 71.What is th

6、e different ideas between Dr. Janice Foster & George Hambley? Dr. Janice FosterGeorge HambleyCarbon dioxide has caused the global temperature to _. An increase of five degrees would be a _ and could be _.More carbon dioxide is a _ thing,which makes crops _ and will en- courage _.go upcatastrophevery

7、 seriouspositiveproducea greater range of animals2. 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 warm

8、ing.DPost readingTell True or False (1) The temperature last century didnt increase much. ( ) (2) Everyone believes that global warming is caused by the activities of humans. ( ) (3) Janice Foster believes that burning fossil fuels causes global warming. ( ) (4) Natural gas is a greenhouse gas. ( )

9、(5) Carbon dioxide is a byproduct of burning fossil fuels. ( )FTTFT (6) People accept Charles Keeling s data because he took accurate measurements. ( ) (7) Flooding could be one of the effects of future global warming. ( ) (8) George Hambley believes scientists are just guessing about the effects of

10、 global warming. ( ) (9) Geroge Hambley is worried about the effects of carbon dioxide on plant growth. ( ) (10) It is clear what the effects of global warming will be. ( )TTFFT Look at the two graphs on page 26 and complete the paragraphs. The first graph shows the global _ between _ and _ . The te

11、mperature _ and decreased over this period but on the whole it _ _ by around one degree Fahrenheit. During this time, the earth reached its _ temperature in about _ and its highest in 2000.There was a steady _ _ in the temperature temperature18602000increasedincreasedlowest1910increase during the tw

12、enty years after 1980.We can see from the graph that the earth has become _ since early last century. The second graph shows the amount of _ in the atmosphere from _ to _ . The carbon dioxide _ steadily over this forty-year period .It went up from 315 to 370 parts _ million.warmercarbon dioxide19571

13、997increasedper1.it is a rapid increase when compared tocompared to other natural changes. compare A to Bcompare A to B compare A with Bcompare A with B：把A比作B，一般要有相似之处，显示某人或某物与他人或他物相同。：把A和B进行比较egeg: : 我们常把儿童比作花朵。我们常把儿童比作花朵。egeg: : 如果你把这本字典和那本比较一下，你就会如果你把这本字典和那本比较一下，你就会发现许多不同之处。发现许多不同之处。We often comp

14、are children to flowers.If you compare this dictionary with that one, youll find many differences.Language points for Reading I2.So how has this come aboutcome about and does it matter?come aboutcome about : 发生，造成发生，造成 相当于相当于happenegeg: :你能告诉我事情是怎么发生的吗？你能告诉我事情是怎么发生的吗？egeg: :随着电的使用，种种大变化发生了。随着电的使用，种种

15、大变化发生了。Can you tell me how the accident came about？With the use of electricity, great changes have come e out come up出现；（消息）传开；（观点）公开出现；（消息）传开；（观点）公开发生、举行；（在空中）出现发生、举行；（在空中）出现3. random3. random adj & n. Adj. 随意的，任意的随意的，任意的egeg: : The information is processed in a random order. 这些信息是随机处理的。这些信息是随机处理的。

16、n. n. at random at random 随意地随意地egeg: :我随意点了个人。我随意点了个人。 I called one at radom. 4. phenomenon4. phenomenon n. 现象；现象； 奇迹，罕见的人才或事物奇迹，罕见的人才或事物egeg: : 雨雪是天气现象。雨雪是天气现象。Rain and snow are phenomena of the weather.egeg: :不应该简单地视未婚妈妈为一种社会现象。不应该简单地视未婚妈妈为一种社会现象。 Unmarried mothers should not be regarded simply_.

17、egeg: :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.复数形式复数形式 pl. phenomena as a social phenomenon.a phenomenon5. subscribe v. 5. subscribe v. 不及物动词，后接不及物动词，后接toto11订阅，订购（报纸等）订阅，订购（报纸等）egeg: : 我今年订了中国日报。我今年订了中国日报。I subscribed to China Daily this year.2 捐赠。捐赠。3 subscribe to sth 赞成赞成 同意同意sth

18、He subscribe to what I said.他同意我说的。他同意我说的。6. tend6. tend 1 v. 后跟后跟to 常常会，常常会，egeg: : 女人往往比男人长寿。女人往往比男人长寿。Women tend to live longer than men.2 v. 后跟介词后跟介词 egeg: :近年来物价趋于上升。近年来物价趋于上升。The prices have tend towards over recent years.3 3 vtvt. .照顾，伺候照顾，伺候n. tendency 倾向倾向 偏好偏好 adj. tender 温柔的温柔的辨析：辨析：trend

19、 n. 趋向趋向 7. result in 7. result in 产生，导致产生，导致 (= cause / lead to )主语：主语： in 的宾语：的宾语：egeg: : 努力终归成功。努力终归成功。Hard work results in success.result fromresult from 主语：主语： |from 的宾语：的宾语： 起因起因结果结果由由引起，产生引起，产生结果结果起因起因His sickness was caused by eating too much.= His sickness resulted _eating too much. (in / f

20、rom)from8.8. state v. state v.陈述，声明；陈述，声明； n. n. 状况，情况；国家；状况，情况；国家； +n. state +that从句从句 +wh-从句；从句；可用于被动结构，也可用过去分词作定语。可用于被动结构，也可用过去分词作定语。n. statement 声明，陈述声明，陈述9.9. range range v.排列排列, 使成行；偏袒，站在使成行；偏袒，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,可供选择可供选择的范围等，可加不定冠词的范围等，可加不定冠词) ；排列；排列 beyond the range of out o

21、f ones range超越超越的范围的范围某人达不到的某人达不到的egeg: : 这家商店商品品种多。这家商店商品品种多。The shop keeps_. egeg: : 年龄范围自年龄范围自6 6岁到岁到12 12 岁。岁。_is from six to twelve years old.a wide range of goodsThe age rangev.排列排列, 使成行；偏袒，站在使成行；偏袒，站在的方面。的方面。主要搭配为：主要搭配为：+名词名词/代词；代词；+介词介词+名词名词/代词代词；常可用于常可用于: 1. 被动结构被动结构 2. range oneself； 3. ra

22、nge from to / between and 从从到到不等。不等。egeg: : 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.egeg: : 温度在温度在1515度到度到3535度之间。度之间。The temperature_.egeg: : 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.arrange ourselvesranged his studentsranges from 15 to 35 degrees9. matter v. :要紧；有关系。 eg: 我认为除了他自己以外，没有人对她来说是重要的。 I dont think anybody matters to her apart from herself.相当于相当于important。10.10. build up build up 逐步建立，增加，增进逐步建立，增加，增进build up ones fortunebuild up ones strengthegeg: : 累积财富累积财富 养精蓄锐养精蓄锐