《模式1：高中英语选修8精品课件28份选修八4.4Unit4LanguageStudy课》由会员分享，可在线阅读，更多相关《模式1：高中英语选修8精品课件28份选修八4.4Unit4LanguageStudy课（54页珍藏版）》请在金锄头文库上搜索。
1、新课标人教版课件系列,高中英语 选修(模块）8-4.4,Language Study,A sample poster,Discovering useful words and expressions (P28),Go over the new words and phrases in the previous sections. Then complete each sentence with one of those new words or phrases.,1,1. Charles Keeling collected _on the carbon dioxide content in t
2、he atmosphere over a forty-year period. He found that the amount of carbon dioxide _ increasing during that time.,data,kept on,2. Although we are burning coal in huge _ every year, we wont _ of it for centuries. 3. If the amount of greenhouse gases continues to _ we could be facing a global _ .,quan
3、tities,run out,build up,catastrophe,4. Many scientists believe that global warming has _ through the burning of fossil fuels. They do not think that ignoring the issue is worth the _ .,come about,risk,5. _ describes weather conditions over a period of years in a particular place.,Climate,6. The _ of
4、 a rising sea level would be widespread flooding. 7. The use of energy in Susannas country is low _ the use of energy in the USA.,consequence,compared to,8. The warming of the earth is a _ that causes great concern. 9. The _ shows temperature changes during the 20th century. 10. One hectare of fores
5、t can absorb 23 tons of carbon dioxide _ year.,phenomenon,graph,per,Look at the two graphs on page 26. Then complete the paragraphs about them with appropriate words. The first graph shows the global _ between _ and _ .,2,temperature,1860,2000,The temperature _ and decreased over this period but on
6、the whole it _ by around one degree Fahrenheit. During this time, the earth reached its _ temperature in about _ and its highest in 2000.,increased,rose,lowest,1910,There was a steady _ in the temperature during the twenty years after 1980. We can see from the graph that the earth has become _ since
7、 early last century. The second graph shows the amount of_ in the,increase,warmer,carbon dioxide,atmosphere from _ to _ . The carbon dioxide _ steadily over this forty-year period. It went up from 315 to 370 parts _ million.,1957,1997,per,went up,Complete the sentences below with the correct word. U
8、se a new word made from a word on the left and a suffix on the right.,Using Words and Expressions (P63),1,1. Those factories are causing a lot of _ with all their noise and smoke. 2. Yesterday the Prime Minister made a _ announcing new laws to reduce water pollution.,pollution,statement,3. The two c
9、ountries have reached an _ on the levels of greenhouse gases they will allow. 4. The quality of the air would improve if there was a _ in the use of coal.,agreement,reduction,5. The increase in the use of fossil fuels could have _ results for the earth. 6. We have lost thousands of trees because of
10、a fire started by an _ storm.,catastrophic,electrical,7. This species of frog is the only one in _ in this area. The rest have disappeared. 8. The two countries are _ in their use of natural gas.,existence,comparable,9. Past accidents have shown that building nuclear power stations can be _ . 10. Ma
11、ny people dont understand the _ of the worlds environmental problems.,risky,seriousness,11. I wonder whether these floods have been caused by _ changes. 12. It is extremely _ that the world will stop using fossil fuels this century.,climatic,doubtful,Answer key for Exercise 2 P64 : 1. It would make
12、a big difference to our environment if we planted more trees around the school.,2,2. The research resulted in a better understanding of changes in the climate. 3. I think our conference was very successful on the whole.,4. There is a wide range of energy sources: coal, oil, natural gas, water power,
13、 nuclear power and so on. 5. I think people turn up the heat in their houses too high and just waste energy.,6. Even if there is a steady decrease in the use of oil fuels, the earth will still keep warming up. 7. The headmaster has stated that he is not going to put up with littering in the school.,
14、8. Since your bicycle is broken you can use mine, so long as you take care of it. 9. The consumption of the energy resources in the USA is almost 6 times as much as the average consumption of the whole world.,10. Ive glanced at your plan so now I want you to finish your final report.,Answer key for
15、Exercise 1: 1. It was a scientist called Charles Keeling who made accurate measurements of the amount of carbon dioxide in the atmosphere from 1957 to 1997.,Discovering useful structures (P29),2. (They also believe) it is the burning of more and more fossil fuels that is resulting in this increase in carbon dioxide.,Explanation 由it引导的强调句结构： It is (was)+被强调部分+that (who) + 句子其他部分 注意：此结构强调的成分仅限于主语，宾语和状语。,如： 原句：My father did the experiment in the lab yesterday evening 强调主语：It was my father who/that
