2022-2023學(xué)年人教版（2019）選擇性必修第三冊(cè) Unit 3 Environmental Protection Reading and Thinking 課件 （36張）

1、Reading and Thinking【版本：新人教 冊(cè)別：選擇性必修三】UNIT 3 ENVIRONMENTAL PROTECTION目錄頁(yè)P(yáng)re-readingLanguage pointsWhile-readingHomeworkIIIPost-readingPre-readingBeforePre-reading: Lead inPre-reading: Think and talkTodayWhat happened to the polar bear in the photo?Pre-reading: Think and talkCLIMATE CHANGE REQUIRES T

2、HE WORLDS ATTENTIONWhile-reading1. What happened to the polar bear in the photo? The polar bear in the photo died of starvation.2. Why did the writer write about it? While-readingThe writer wrote about it because it showed one of the effects of rising temperatures due to climate change.Read through

3、paragraph 1 and 2, and then answer the questions below. What information can you get from the graphs above? While-reading1. What is causing the increase in the global average temperature? The greenhouse effect.2. Why is the “natural” greenhouse effect important and necessary?While-readingThe “natura

4、l” greenhouse effect is important and necessary because it warms the Earths surface and keeps it habitable. 3. What are the consequences of high greenhouse gas emissions?High greenhouse gas emissions lead to more heat energy being trapped in the atmosphere and rising temperatures.Read through paragr

5、aph 3, and then answer the questions below. Create a diagram describing how the greenhouse effect works in natural and man-induced situations. While-reading Function: brainstorm ideas, map out processes, show cause and effect relationships, explain a new idea or concept, visualise the problems, demo

6、nstrate the creative thinking and problem-solving .A layer of greenhouse gases traps energy from the sun and stops the earth from freezing.natural man-induced+1（2016）Additional greenhouse gases further slow the release of heat back into space and cause the earths temperature to rise.While-reading1.

7、Why did the author mention the climate scientists warning? The author mentioned the climate scientists warning because it is essential that we take action and so it needs to be brought to everyones attention.2. What is the authors purpose of writing this text?While-readingThe authors purpose is to i

8、nform the reader and inspire them to do whatever they can to deal with this problem.Read through paragraph 4 and 5, and then answer the questions below. Post-readingPost-reading: Think and discuss1. Global warming will result in more frequent extreme weather and disasters. What examples do you know?

9、 Make a list. 2. What should we do to slow the progress of global warming?Post-reading: Think and discuss3. Its said that Zhengzhou flood on July 20 is a microcosm (縮影) of global warming. Since global warming is unstoppable and irreversible, how shall we face and relieve the impact that extreme disa

10、sters bring?Post-reading: Think and discussLanguage points1melting ice2provide evidence of 3a dramatic change4skin and bones5trap the heat6sustain life7huge amounts of8fossil fuels9pay a high priceLanguage points: Important phrases (P26 P27)正在融化的冰為提供依據(jù) / 證據(jù)急劇變化困住熱量皮包骨大量的化石燃料維系生命付出巨大的代價(jià)10long-lasting

11、 changes11make policies 12seize the opportunity13map out14cause and effectLanguage points: Important phrases (P26 P27)持久的變化抓住機(jī)會(huì)制定政策規(guī)劃；安排因果Language points: Important sentences (P26 P27)1. There is little doubt that Earth is getting warmer and warmer. (P26)2. A warming ocean and atmosphere along with

12、melting ice and rising sea levels provide evidence of a dramatic change in the global climate. (P26)3. An expert who has studied polar bears for many years said that from the position of its dead body, the bear appeared to have starved and died. (P26)4. Experts claimed that low sea-ice levels caused

13、 by climate change meant the bear could not hunt seals as before, so it had to travel greater distances in order to find food. (P26)Language points: Important sentences (P26 P27)5. The “natural” greenhouse effect refers to the fact that heat from the sun enters the atmosphere and warms Earths surfac

14、e as short-wave radiation. (P26 P27)6. Greenhouse gases in the atmosphere, such as methane and carbon dioxide, trap some of the heat, keeping Earths climate warm and habitable. (P27)7. There is strong and comprehensive evidence that the rise in temperature has led to an increase in extreme weather a

15、nd natural disasters worldwide, not only causing serious damage, but also costing human lives. (P27)8. We as individuals can also reduce our “carbon footprint” by restricting the amount of carbon dioxide our lifestyles produce. (P27)同位語(yǔ)從句：大多由從屬連詞_引導(dǎo),常常跟在order, report, wish, decision, suggestion, bel

16、ief, doubt, fact, hope, message, news等抽象名詞的_，一般用來(lái)解釋或說(shuō)明這些名詞的具體含義或內(nèi)容。Language points: Important sentences (P26 P27)that后面句式分析1. There is little doubt _ Earth is getting warmer and warmer. 毫無(wú)疑問(wèn)，地球正變得越來(lái)越溫暖。(P26) 5. The “natural” greenhouse effect refers to the fact _ heat from the sun enters the atmosph

17、ere and warms Earths surface as short-wave radiation. “天然”溫室效應(yīng)指的是來(lái)自太陽(yáng)的熱量以短波輻射的形式進(jìn)入大氣層，使地表變暖。(P26 P27)thatthat1. They expressed the hope _ they would come over to China soon.2. Word has come _ some American guests will come to our college for a visit next week.3. He cant answer the question _ he got

18、the money from his home yesterday.4. Do you have any idea _ is actually going on in the classroom?5. The problem _ we should have the meeting in the hall nowmust be decided at once.Language points: Important sentences 即學(xué)即用thatthathowwhatwhetheralong with 連接前后兩個(gè)主語(yǔ)時(shí)，謂語(yǔ)動(dòng)詞應(yīng)和_那個(gè)主語(yǔ)保持一致，即“就遠(yuǎn)原則”。Language po

19、ints: Important sentences (P26 )前面的句式分析2. A warming ocean and atmosphere along with melting ice and rising sea levels provide evidence of a dramatic change in the global climate. 海洋和大氣變暖，以及冰層融化、海平面上升，都為全球氣候急劇變化提供了依據(jù)。(P26)1. A library with five thousand books _ (offer) to the nation as a gift.2. All

20、but one _ (be) here just now.3. Wechat, as well as Ding Talk, _ (play) an important part in daily communication nowadays.Language points: Important sentences 即學(xué)即用is offeredwereis playing I am really sorry to have given you so much trouble. He was believed to have been a reporter. I expect to have re

21、ad the book by the weekend. I meant to have called you last night.Compare and FindLanguage points: Important sentences (P26)3. An expert who has studied polar bears for many years said that from the position of its dead body, the bear appeared to have starved and died. 一位長(zhǎng)期研究北極熊的專家說(shuō)，從尸體的姿勢(shì)看，這只北極熊像是餓

22、死的。(P26)動(dòng)詞不定式完成時(shí)4. Experts claimed that low sea-ice levels caused by climate change meant the bear could not hunt seals as before, so it had to travel greater distances in order to find food. 專家稱，氣候變化導(dǎo)致的海冰面降低意味著北極熊無(wú)法像以前那樣捕食海豹，于是它只能長(zhǎng)途跋涉去尋找食物。(P26)caused by climate change在句中作_。Language points: Importa

23、nt sentences (P26 )后置定語(yǔ)句式分析1. Prices of daily goods _ (buy) through a computer can be lower than store prices.2. The prize of the game show is $30,000 and an all-expense- _ (pay) vacation to China.3. The disco, digitally recorded in the studio, _ (sound) fantastic at the party now.Language points: I

24、mportant sentences 即學(xué)即用boughtpaidsoundsv-ing 短語(yǔ)在句子中作_。Language points: Important sentences (P27)結(jié)果狀語(yǔ)句式分析6. Greenhouse gases in the atmosphere, such as methane and carbon dioxide, trap some of the heat, keeping Earths climate warm and habitable. 大氣層中甲烷、二氧化碳等溫室氣體困住了部分熱量，從而使地球保持氣候溫暖、適宜居住。(P27)1. _ (con

25、sider) the reasons mentioned above, we should take effective measures to protect our environment.2. The leader stayed up all night, _ (think) of what to do the next day.3. _ (not receive) her reply, he decided to send another e-mail to her.Language points: Important sentences 即學(xué)即用Consideringthinking

26、Not having received7. There is strong and comprehensive evidence _ the rise in temperature has led _ an increase in extreme weather and natural disasters worldwide, not only causing serious damage, but also _ (cost) human lives. 確鑿、全面的證據(jù)表明，溫度上升導(dǎo)致全球極端天氣和自然災(zāi)害增多，不僅造成嚴(yán)重破壞，而且使人喪命。(P27)Language points: Important sentences (P27)構(gòu)詞法“-wide”表示 “范圍內(nèi)的（地）” state