Unit 3 Reading and Thinking Language Points -ppt课件--(2022)高二英语新人教版选择性必修第三册.pptx

1、高二人教版选择性必修三英语第三单元Environmental Protection Lesson 2 Language Pointsn By the end of this period,you will be able to1)learn to guess the meaning of the new words from the context.2)further understand the usages of such important words and expressions as greed,starve,ecology and so on.3)learn to use the

2、se target words by putting them in the right context with the right from.Who do you think should take responsibility for dealing with climate change?Earth provides enough to satify every mans needs,but not every mans greed.Mohandas K.Gandhigreed不可数名词a strong desire for more wealth,possessions,power,

3、etc.than a person needs 贪婪；贪心；贪欲greedGreed is not merely caring about money and possessions,but caring too much about them.Human beings should take responsibility for dealing with climate change.Q1:Look at the picture,what happened to the polar bear?The polar bear appeared to have starvedand died.st

4、arve vi.&vt.to suffer or die because you do not have enough food to eat;to make somebody suffer or die in this way (使)挨饿；饿死 Shes _to try to lose weight.starving herself【用法小结】starvemeaningcollocationderivative（衍生词）suffer greatly from lack of foodstarve to deathstarve sb into doing sth.be starved of s

5、th.starvationpart of speechverbQ2:What implications can we get from the news photo of a dead polar bear by referring to the diagram?It showed the increase in temperature had a negative impact on Earths ecology.ecology n.the relation of plants and living creatures to each other and to their environme

6、nt;the study of this 生态学；社会生态学Ecology helps us understand complex problems.Oil pollution could damage the fragile ecology of the coral reefs.The prefix“eco”describe something as being related to ecology.ecosystemecosphere生态学 生态学的 生态学者 生态系统 生态圈；生态层 ecology ecological ecologist ABCDA.Heat enters the a

7、tmosphere.D.Heat is trapped by green-house gases.B.Heat warms the earth surface as short-wave radiation.C.Heat is released back into space at longer wave lengthsAtmosphere EarthQ3:What is greenhouse effect?Q:What are the consequence of high greenhouse gas emissions?Heat is released back into space a

8、t longer wave lengths.release vt.&n.=set sb/sth freerelease sb/sth from sthThe factory keeps _ smoke,making the air dirty.Smoke keeps _ from the factory,making the air dirty.releasingbeing releasedMatching Exercise1.Firefighters took two hours to release the driver from the wreckage.2.She asked her

9、husband not to release her arm while she was climbing up the mountain.3.She burst into tears,releasing all her pent-up(堆积起来)emotions.4.The club is releasing some of its older players.5.My idol will release a book next month.A.to free sb from a duty,responsibility,contract,etc.B.to express feelings s

10、uch as anger or worry in order to get rid of themC.to stop holding sth or stop it from being held so that it can move freelyD.to let sb/sth come out of a place where they have been kept or trappedE.to make sth available to the public DCBAEQ4:Is the natural greenhouse effect important for Earth?Yes,i

11、ts very important.Without this process,Earth could not sustain life.sustain verb.to provide enough of what somebody/something needs in order to live or exist 维持生命、生存 哪些行星可以维持生命的存在？Which planet can sustain life?Q5:What are the consequences of the rise in temperature?There is a strong and comprehensiv

12、e evidence that the rise in temperature has led to an increase in extreme weather and naturaldisasters worldwide,not only causing serious damage,but also costing human prehensive adj.1.including all the necessary facts,details,or problems that need to be dealt with SYNthorough comprehensive examinat

13、ions comprehensive insurance comprehensive knowledge Q6:What did climate scientists warn us if we dont take appropriate actions?This warming trend will probably continue and there will be a higher price to pay.In fact,news reports are frequently broadcast about extreme rainstorms and heatwaves causi

14、ng deaths and economic losses.trend 趋势；趋向；倾向；动态；动向trend in/towards sth.trend1.There is _（增加的趋势）towards earlier retirement.2.销售额上升、下滑的趋势a downward/an upward trend in sales3.The record has already proved a success and may well _.该唱片已证明大获成功，并且很可能会引导潮流。4.确诊病例报告数量呈上升趋势。There has been an upward trend in t

15、he number of confirmed cases reported.5.The article discusses _(当前趋势)in language teaching.a growing trendstart a trendcurrent trendsThis warming trend will probably continue and there will be a higher price to pay.In fact,news reports are frequently broadcast about extreme rainstorms and heatwaves c

16、ausing deaths and economic losses.broadcast vt.&vi.(broadcast,broadcast)播送(电视或无线电节目);广播;传播（信息等）The concert will be broadcast live tomorrow evening.I dont like to broadcast the fact that my father owns the company.broadcast n.广播节目；电视节目a live broadcast of the concert 音乐会的现场直播a news broadcast 一档新闻节目a l

17、ive broadcast 现场直播We as individuals can also reduce our“carbon footprint”by restricting the amount of carbon dioxide our lifestyles produce.Its our responsibility to seize every opportunity to educate everyone about global warming,along with its causes and impacts.Q7:What should we as individuals do

18、 to reduce greenhouse gas emissions?restrict vt.to limit the size,amount or range of something限制；限定；束缚限制；限定；束缚restrict.to.把限制在e.g.We should restrict the number of students to 10.restrict oneself/sb to sth/to doing sth.约束自己做某事；管束自己做某事e.g.I restrict myself to one cup of coffee a day.restriction n.限制限制

19、restricted adj.有限的；受限制的有限的；受限制的restrictive adj.限制性的；约束的限制性的；约束的restrictively adv.限制（性）地，约束（性）地限制（性）地，约束（性）地(1)We restrict the number of students per class _ 10.我们将每个班的学生人数限制在我们将每个班的学生人数限制在10人。人。(2)In those days women led fairly _(restrict)lives.那时，妇女过着相当受限制的生活。那时，妇女过着相当受限制的生活。(3)The government has a

20、greed to lift _(restrict)on press freedom.政府已经同意解除对新闻自由的限制。政府已经同意解除对新闻自由的限制。(4)They will hold a meeting to discuss the _(restrict)laws.他们将要开会讨论那些限制性的法律。他们将要开会讨论那些限制性的法律。(5)Access to the club _ to members only.俱乐部仅对会员开放。俱乐部仅对会员开放。restrictedrestrictions restrictivetois restrictedseize vt.(1)to take so

21、mebody/something in your hand suddenly and using force抓住；夺取；控制抓住；夺取；控制seize sb.by the arm 抓住某人的胳膊抓住某人的胳膊seize on/upon 抓住；突然对抓住；突然对大为关注大为关注(2)take control of a place or situation 夺取，攻占，控制夺取，攻占，控制seize the airport seize power in a military coup(3)(of an emotion 情绪情绪)to affect sb suddenly and deeply 侵袭

22、；突然控制侵袭；突然控制Panic seized her.(1)I was ready to pay for my bananas at the grocery one night，when fear seized me.一天晚上，我在杂货店里正准备付钱买香蕉时恐惧攫住了我。一天晚上，我在杂货店里正准备付钱买香蕉时恐惧攫住了我。(2)I was walking in the street when a boy suddenly seized me the arm.我正在街上走着，这时一个男孩抓住了我的胳膊。我正在街上走着，这时一个男孩抓住了我的胳膊。(3)Bob seized the rain

23、 as an excuse for missing school.鲍勃以下雨为借口不去上学。鲍勃以下雨为借口不去上学。(4)It is said that the city which was seized by the enemy was very old.It is said that the city was very old.(用非谓语动词改用非谓语动词改写写)byon/uponseized by the enemyBuild up your vocabulary(P28)1.Complete the sentences with the correct forms of the wo

24、rds in the box.1.The Amazon basin,known as the“lungs of the world”,not only provides some _ balance for the planet,but also food and resources for the local natives.2.Thousands of baby penguins _ to death because the changing climate forced their parents to leave them and travel long distances in se

25、arch of foodstarved ecologicalbroadcast comprehensive ecology starve seizebroadcast comprehensive ecology starve seize3.Many experts link Chinas economic success to the_ reform that China has undergone since 19784.The speaker said the media should make more _ that spread awareness of the climate cri

26、sis and possible solutions.5.To deal with climate change,we must _ the initiative to do whatever is necessary to protect our prehensiveseizebroadcastsbroadcast comprehensive ecology starve seize2.Complete the passage with the correct forms of the words in the box.Carbon dioxide is _ through human ac

27、tivities such as destroying forests and burningfossil _，as well as natural processes such as volcanic eruptions.The measurementsby climate experts show a rising _of carbon dioxide emissions.If this continues,ourplanet will face further environmental disasters.ln response to this environmental issue,

28、China is implementing significant _ and measures to address climate change,aiming to _coal consumption,promote a harmonious relationship between man and nature,build a _energy system,and advocate a moderate,green,and low-carbon lifestyle.releasedfuelstrendpolicies sustainablerestrict fuel policy rel

29、ease restrict sustain trend1)learn to guess the meaning of the new words from the context.2)further understand the usages of such important words and expressions as greed,starve,ecology and so on.3)learn to use these target words by putting them in the right context with the right from.Summary Review what we have learned today Finish Exercise 1,Exercise 2,Exercise 3 on Page 75Assignment