選修六 4.2《Unit 4　Language Study 》學(xué)習(xí)培訓(xùn)課件

1、新課標(biāo)人教版課件系列高中英語選修(模塊）6-4.2Language Study A sample poster Fight global warming Cut down on energy Cut down on carbon dioxide Not using it .? Turn it off. Dont turn the heat up, put on a jacket. Walk or ride a bike. Recycle. Buy products made from recycled materials. Buy energy-saving products. Plant t

2、rees. Talk about global warming.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.11. Charles Keeling collected _on the carbon dioxide content in the atmosphere over a forty-ye

3、ar period. He found that the amount of carbon dioxide _ increasing during that time.datakept on2. 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 _ .quantitiesrun outbuild upcatastrophe4.

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 aboutrisk5. _ describes weather conditions over a period of years in a particular place.Climate 6. The _ of a rising sea level would be widespread fl

5、ooding.7. The use of energy in Susannas country is low _ the use of energy in the USA.consequencecompared to8. The warming of the earth is a _ that causes great concern.9. The _ shows temperature changes during the 20th century.10. One hectare of forest can absorb 23 tons of carbon dioxide _ year.ph

6、enomenongraphper 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 _ . 2temperature18602000 The temperature _ and decreased over this period but on the whole it _ by around one degree Fahrenheit. During

7、 this time, the earth reached its _ temperature in about _ and its highest in 2000. increasedroselowest1910 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 early last century. The second graph shows the amount of

8、_ in theincreasewarmercarbon dioxide atmosphere from _ to _ . The carbon dioxide _ steadily over this forty-year period. It went up from 315 to 370 parts _ million.19571997perwent up Complete the sentences below with the correct word. Use a new word made from a word on the left and a suffix on the r

9、ight.Using Words and Expressions (P63)11. 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 statement3. The two countries have reached an _ on the levels of greenhouse gases they will

10、 allow.4. The quality of the air would improve if there was a _ in the use of coal. agreement reduction5. The increase in the use of fossil fuels could have _ results for the earth.6. We have lost thousands of trees because of a fire started by an _ storm. catastrophic electrical7. This species of f

11、rog is the only one in _ in this area. The rest have disappeared.8. The two countries are _ in their use of natural gas. existence comparable9. Past accidents have shown that building nuclear power stations can be _ . 10. Many people dont understand the _ of the worlds environmental problems. risky

12、seriousness11. 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 doubtfulAnswer key for Exercise 2 P64 : 1. It would make a big difference to our environment if we planted more trees around the school.

13、22. 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, nuclear power and so on.5. I think people turn up the heat in their houses too hig

14、h 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.8. Since your bicycle is broken you can use mine, so long as you take care of it.9. The

15、 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 Exercise 1:1. It was a scientist called Charles Keeling who made accurate measurements of

16、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引導(dǎo)的強(qiáng)調(diào)句結(jié)構(gòu)：It is (was)+被強(qiáng)調(diào)部分+that (who) + 句子其他部分注意：此結(jié)構(gòu)強(qiáng)調(diào)的成分僅限于主語

17、，賓語和狀語。如： 原句：My father did the experiment in the lab yesterday evening 強(qiáng)調(diào)主語：It was my father who/that did the experiment in the lab yesterday evening強(qiáng)調(diào)賓語：It was the experiment that my father did in the lab yesterday evening強(qiáng)調(diào)時間：It was yesterday evening that my father did the experiment in the lab強(qiáng)調(diào)地

18、點：It was in the lab that my father did the experiment yesterday evening e.g. It was in that city that we met for the first time It was not until he told me that I knew the truth典型例題分析： 1) It was last night _ I saw the film Star Wars Awho Bwhen Cthat Dwhich答案C 強(qiáng)調(diào)句的結(jié)構(gòu)是：It + be + 強(qiáng)調(diào)部分 + that (who) +主謂句

19、。強(qiáng)調(diào)句的連詞只有兩個，that和who。當(dāng)強(qiáng)調(diào)的部分是人，且為句子的主語時，才用who，其余用that。2) It is ten years _ Miss Green returned to Canada Athat Bwhen Csince Das 答案 C考點是連詞用法。本題易誤選為A 其實本句不是強(qiáng)調(diào)句。 若是去掉It bethat還應(yīng)是一個完整的句子。而本句去掉It isthat, 只剩下ten years Miss Green returned to Canada 不成句。因此本句不是強(qiáng)調(diào)句。It is + 時間+since.，其中 is = has been.1. It was

20、this village _ I was bought. A. where B. that C. on which D. which練習(xí):2. It was in this village _ I was bought up. A. where B. that C. on which D. which3. Was it under the tree _ you were away talking to a friend? Sure. But when I got back there, the bike was gone. A. that B. where C. which D. whileA

21、nswer key for Exercise 2:1. It is greenhouse gases that have warmed the earth by trapping heat energy in the atmosphere.2. It is the greenhouse effect that gives the earths surface the average temperature of 15 C.3. It is fossil fuels that much of the energy used to light and heat our homes comes fr

22、om.4. It is the United Sates of America that is the biggest producer of greenhouse gases.5. It is for centuries that carbon dioxide stays in the atmosphere while other greenhouse gases stay in the atmosphere only for a day or less.6. It is their very existence that low-lying countries feel is in dan

23、ger from rising sea levels.7. It is human activities that many scientists believe have caused the earths temperature to rise. 8. It is future climate changes and their effects on our environment that scientists want to find out about.9. It is by several metres that the level of the sea could rise in

24、 the years ahead because of global warming.10. It is outer space that might provide us with new energy sources in the future.Give a full answer to each question about Millennium Kids using the form it is/was. that USING STRUCTURES (P64)When was the first childrens conference on the environment organized in Australia? It was in 1996 that the first childrens conference on the environment was organized in Australia. 2. Who runs Millennium Kids? It is children that / who run Millennium Kids.3. Where can you find out more about Millennium Kids? It is on the Int