2018版高中英语人教版选修六学案：UNIT 4 PERIOD ONE　WARMING UPPRE-READING & READING .docx

1、Consequences of Global WarmingThe latest scientific data show that the earths climate is changing rapidly.Global temperatures increased by about one degree Fahrenheit during the last century，and will likely rise even more rapidly in the coming decades.Whats the cause? A thickening layer of carbon di

2、oxide mostly from power plants and automobiles traps heat in the atmosphere.Here are some consequences of global warming: Climate pattern change Heat waves will be more severe and happen more often.Warmer temperatures could also increase the probability of drought and wildfire.Warmer temperatures in

3、crease the energy of the climatic system and lead to more serious rainfall at some times and in some areas.Health effects More severe heat waves could result in more heatrelated deaths.Global warming is expected to increase the potential geographic range and viruses of tropical diseases as well.Dise

4、ases carried by mosquitoes will widen their range.Warming water Sea levels will rise，flooding coastal areas.Warmer water in the oceans pumps more energy into tropical storms，making them more serious and potentially more destructive.Rising global temperatures will speed the melting of glaciers and ic

5、e caps，and cause rivers and lakes rise.Ecosystem destroyed The increase in global temperatures is expected to destroy ecosystems and result in loss of some species.1.geographic adj.地理的；地理学的2.ecosystem n.生态系统根据短文，判断正(T)误(F) 1.Heat waves could cause many deaths.(T)2.Some species will disappear because

6、 of global warming.(T)3.Warmer water can make tropical storms more intense and potentially more destructive，then only destroying the coastal areas.(F)Period OneWarming Up，Prereading & Reading.单词检测1.consume vt.消费；消耗；耗尽；吃完consumer n.消费者，用户，消耗者2.phenomenon n.现象 phenomena n.现象(复数)3.subscribe vi.同意；捐赠；订阅

7、；vt.(签署)文件；捐助4.quantity n.量；数量5.tend vi.趋向；易于；照顾；vt.照顾；护理6.trend n.趋势；倾向；走向7.mild adj.温和的；温柔的；淡的8.consequence n.结果；后果；影响9. state vt.陈述；说明statement n.陈述；声明10.range n.种类；范围11.glance vi.看一下；扫视；n.一瞥12.steady adj.平稳的；持续的；稳固的steadily adv.平稳地；持续地.短语检测e about发生，造成 2.subscribe to同意；赞成；订购3.quantities of大量的4.g

8、o up上升，增长；升起5.result in导致6.be opposed to反对 7.even if即使 8.keep on继续.段落和大意匹配Para.1 A.the cause of the earths becoming warmerPara.2 B.the consequence of burning fossil fuelsPara.3 C.the increase of carbon dioxidePara.4 D.global warming will go onPara.5 E.puzzles about global warmingPara.6 F.different a

9、ttitudes to global warmingPara.7 G.an introduction to the passage答案GABCDFE.课文判断正(T)误(F)1.The temperature in the last century did not seem to increase much.(T)2.Everyone believes that global warming is caused by the activity of humans.(T)3.Janice Foster believes that she can measure the future global

10、 rise in temperature.(F)4.The rise in carbon dioxide is causing a steady increase in global warming.(T)5.George Hambley believes that global warming will do good rather than harm to the earth.(T)6.It is clear what the effects of global warming will be.(F).课文阅读理解1. made accurate measurements of the a

11、mount of carbon dioxide in the atmosphere from 1957 to 1997.A.Dr Janice Foster B.Charles KeelingC.George Hambley D.Sophie Armstrong答案B2.Some scientists like George Hambley think that the temperature increase will .A.cause a rise of several metres in the sea levelB.cause the spread of diseases and th

12、e disappearance of speciesC.encourage a greater range of animalsD.cause severe storms，floods，droughts and famines答案C3.The main difference between Dr Janice Fosters theory and George Hambleys lies in .A.how to prevent global warmingB.what causes global warmingC.whether global warming would cause seri

13、ous problems or notD.whether the levels of carbon dioxide have increase or not over the years答案C4.Which of the following is TRUE according to the text?A.Greenhouse gases refer to some byproducts of the burning of fossil fuels.B.The global warming is a random rather than natural phenomenon.C.The temp

14、erature in the last century increased by as high as 5 degrees.D.Fewer greenhouse gases will gather in the atmosphere.答案A5.The author probably agrees that .A.actually global warming is good for manB.we should do nothing about the global warmingC.catastrophes will happen if the globe keeps on warmingD

15、.a lot remains to be found out about the effects of global warming答案D.难句分析1.There is no doubt that the earth is becoming warmer (see Graph 1) and that it is human activity that has caused this global warming rather than a random but natural phenomenon.句式分析：本句是一个复合句，两个that引导的从句作doubt的同位语，其中it is huma

16、n activity that.是一个强调句型，强调主语human activity。自主翻译：毫无疑问，地球正在变暖(见表一)，而全球变暖正是人类活动导致的，并非是一种无规律的自然现象。2.Some byproducts of this process are called “greenhouse” gases，the most important one of which is carbon dioxide.句式分析：the most important one of which引导定语从句，修饰“greenhouse” gases。自主翻译：在这个过程中所产生的一些副产品就叫做“温室”气

17、体，其中最重要的就是二氧化碳。1.tend语境感悟(1)(教材P26)It means that more heat energy tends to be trapped in the atmosphere causing the global temperature to go up.它意味着更多的热能会被困在大气层中，从而引起全球气温上升。(2)People who eat slowly tend to consume about 70 fewer calories per meal than those who rush through their meals.(2015全国)吃东西慢的

18、人比那些匆忙吃完饭的人每餐少吸收70卡路里的热量。(3)Modern furniture tends to simplicity.现代家具(的设计)有简单化的趋向。归纳拓展tend vi.趋向，易于，照顾；vt.照顾，护理tend to do sth.易于做某事；倾向于做某事tend to/towards.有趋向，趋于tend (to) sb./sth.照顾，照料，护理即时跟踪 (1)女人往往比男人长寿。Women tend to live longer than men.(2)他的观点趋于偏激。His views tend to the extreme.(3)她正在家里照顾生病的母亲。She

19、 is tending (to) her sick mother at home.2.consequence语境感悟(1)(教材P27)They predict that any warming will be mild with few bad environmental consequences.他们预言，变暖的情况不会很严重，对环境的影响也不会太坏。(2)It rained yesterday and as a consequence/in consequence/consequently the match was cancelled.昨天下雨了，结果比赛被取消了。(3)The cit

20、y was in ruins in consequence of/as a consequence of a severe earthquake.由于一次严重的地震，这座城市变成了废墟。归纳拓展(1)consequence n.结果；后果；影响in consequenceas a consequence结果，因此in consequence ofas a consequence of由于的缘故(2)consequent adj.作为结果的，随之发生的(3)consequently adv.所以，因而即时跟踪(1)用consequent的正确形式填空A severe flood strikes

21、the city and there is a consequent shortage of food.He studied hard，and in consequence he passed the exam. The young man was always late for work.As a consequence，he was fired.My car broke down and consequently I was late.(2)单句改错As consequence of smoking，my father coughs frequently.As后加a3.range语境感悟(

22、1)(教材P27).it will encourage a greater range of animals.这将会促进动物的多样性(2)The price of the car is out of his range.这辆车的价格超过了他的承受范围。(3)She has had a number of different jobs，ranging from chef to swimming instructor.她做过许多不同的工作，从厨师到游泳教练。归纳拓展range vi.排列；(在一定范围内)变化，变动；vt.涉及；n.种类；范围；山脉a range of一系列beyond/out o

23、f the range of超出的范围in/within range of在的范围内out of ones range某人达不到的range from.to./range between.and.在到的范围内变化即时跟踪(1)写出下列句子中range的词性和汉语意思Its prices range between twenty and thirty yuan.vi.(在一定范围内)变动；变化Our conversation ranged over many topics.vt.涉及The shabby houses used to range along the road.vi.排列They

24、are looking for the house available in the price range.n.范围Between Italy and France，there is a mountain range called the Alps.n.山脉(2)完成句子这件事超出了我的能力范围。Its beyond/out of the range of my ability.有120名学生，年龄在10到18之间。There are 120 students whose ages range from 10 to 18.该物体进入了我的视野。It came in/within the ra

25、nge of my vision.4.glance语境感悟(1)(教材P27)Glance quickly at the magazine article and answer the questions.快速浏览杂志中的文章并回答下列问题。(2)He took a glance at the newspaper headlines.他匆匆看了一眼报纸上的标题。(3)At first glance the problem seemed easy.乍一看问题似乎很简单。归纳拓展glance vi.看一下；扫视；n.一瞥(常与介词at连用)take/give/have a glance at.粗略

26、地看一下at first glance/sight乍看之下；乍一看易混辨析glance/glare/stare(1)glance一瞥，匆匆一看，强调动作的短暂性。(2)glare怒视，带有敌对或威胁的态度。(3)stare盯着看，含有无礼或粗俗的意味。尤指吃惊、害怕或深思地盯着看、凝视。即时跟踪 用glance，glare或stare的正确形式填空(1)They stopped arguing and glared at each other.(2)The manager glanced at the document and signed down his name.(3)Dont star

27、e.Its rude!(4)He suddenly glanced at me and said quietly，“Why are you staring at me like that？”(2015湖南)e about语境感悟(1)(教材P26)So how has this come about and does it matter? 那么，这种温度的增长是怎样产生的呢？会产生影响吗？(2)The question is bound to come up at the meeting.会上一定会提出这个问题。归纳拓展come about产生；发生come across偶遇，偶然发现；被理解

28、come out出来，发芽；出版；说出；洗掉come up with提出，想出come up被提出易混辨析come about/happen/take place/break out/occur(1)come about强调偶然发生，也指差别、争论的产生。(2)happen偶然发生，可用于happen to sb.；it happens that；happen to be/do碰巧。(3)take place指计划、安排做；可引申为“举行，进行”。(4)break out指战争、火灾、疾病等爆发，也可指突然大喊大叫。(5)occur发生，突然想起，可用于It occurs to sb.to d

29、o./that.某人突然想起。即时跟踪 (1)用come about，happen to，take place，break out，occur to的正确形式填空A fire broke out in the hospital at night.I happened to see him on my way home.Ill never understand how it came about that you were late three times a week.It didnt occur to her to ask for help.The meeting will take pla

30、ce soon.(2)用come相关短语的正确形式填空He came across the interesting book in the library.These books all came out last week.After much thought，we came up with a solution.They didnt know how the change had come about.2.subscribe to语境感悟(1)(教材P26)All scientists subscribe to the view that the increase in the earth

31、s temperature is due to the burning of fossil fuels like coal，natural gas and oil to produce energy.所有的科学家都赞同这种观点：人们为了生产能量而燃烧化石燃料(如：煤、天然气和石油等)，从而引起了地球温度的升高。(2)He subscribed a large sum to the relief fund.他向救济基金捐赠巨资。(3)He subscribed his name to a petition.他在请愿书上签名。归纳拓展subscribe to同意，赞成；订购subscribe vi

32、.同意；捐赠；订阅；vt.(签署)文件；捐助subscribe sth.to.向捐助某物subscribe for订阅，订购(书籍等)；认购(股份)即时跟踪 (1)完成句子We all subscribed to what he had said(同意他说的话).There are so many reference books，and which one do you want to subscribe for/to (想订阅)?(2)单句改错He likes reading English newspapers，who has subscribed China Daily for year

33、s.subscribed后加to/for3.quantities of语境感悟(1)(教材P26)The problem begins when we add huge quantities of extra carbon dioxide into the atmosphere.当我们向大气层中排放了大量额外的二氧化碳时，问题就来了。(2)Quantities of apples were on the table.桌子上有很多苹果。(3)A large quantity of airconditioners have been sold since the summer came.入夏以来，

34、已有大量的空调售出。(4)The steel works has been supplying us with raw material in large quantities.那家钢铁厂一直提供给我们大量的原材料。归纳拓展quantities of/a quantity of大量的in quantity/in large quantities 大量的in small quantities 少量的注意：a quantity of 与quantities of都可译为“大量的”，都既可修饰可数名词又可修饰不可数名词，但用法有区别。a quantity of的谓语动词根据其后的名词而定，跟可数名词

35、复数时，谓语动词用复数；跟不可数名词时，谓语动词用单数。而quantities of 后无论跟可数名词还是不可数名词，谓语动词一律用复数。即时跟踪 (1)完成句子瓶子里还剩下少量的水。There is a small quantity of water left in the bottle.由于更多森林正在被毁坏，因此每年大量的好土地正在被冲走。With more forests being destroyed，huge quantities of good earth are being washed away each year.(2)单句改错Large quantities of foo

36、d was sold yesterday.waswere4.go up语境感悟(1)(教材P26)It means that more heat energy tends to be trapped in the atmosphere causing the global temperature to go up.它意味着更多的热能会被困在大气层中，从而引起全球气温上升。(2)The prices of food and vegetables are going up while the prices of shares are going down.粮食和蔬菜的价格在上涨，而股票的价格在下降

37、。归纳拓展go up 上升，上涨；升起go down 下沉，下降，降落go off (铃声等)响起；离开；爆炸，停止运行go by 经过；流逝go over 复习；仔细检查go through 经历，遭受；穿过，通过，完成即时跟踪 (1)用go相关短语的正确形式填空As the months went by，I began to realize that I actually wanted to walk Misty.(2015浙江)With more and more farmers growing this kind of vegetable，the price of it is goin

38、g down.Go over your lessons carefully before you take the exam.Shes gone through a difficult time recently.(2)单句改错Today，I am going to talk about what you should do when a fire alarm go off.(2014四川，短文改错) gogoes5.result in语境感悟(1)(教材P26)They also agree that it is the burning of more and more fossil fue

39、ls that has resulted in this increase in carbon dioxide.他们还赞同这种观点：正是由于越来越多的化石燃料的燃烧导致了二氧化碳的增加。(2)Childrens fear and dislike of books may result from being made to read aloud before others.(2015浙江)孩子对书的恐惧和厌烦是大人要求他们在他人面前朗读导致的。(3)He was late as a result of the heavy snow.因为大雪他迟到了。(4)As a result，we lost

40、our way.结果，我们迷了路。归纳拓展result in(cause/lead to)产生，导致result from由引起as a result 结果，因此as a result of作为的结果；因为即时跟踪 (1)选词填空There is no doubt that your success has resulted from your hard work.Stress and tiredness often result in a lack of concentration.He was injured as a result of the traffic accident.He d

41、idnt work hard；as a result，he failed his exam.(2)单句改错As result，the plants are growing everywhere.(2014新课标全国，短文改错)result前加a6.be opposed to语境感悟(1)(教材P27)On the other hand，there are those，like George Hambley，who are opposed to this view and believe that we should not worry about high levels of carbon d

42、ioxide in the air.另一方面，有一些人反对这种观点，像乔治汉姆布雷。他们认为我们不应该担心大气中二氧化碳的高含量。(2)Could it be the pattern that two things make，as opposed to three?这会不会是两个物体组成的图案，而不是三个？(3)The king couldnt bear anyone to oppose him.国王不能忍受任何人反对他。归纳拓展(1)be opposed to(object to)反对；与截然不同as opposed to(表示对比)而，相对于opposed adj.反对的，对应的(2)op

43、pose vt.反对，反抗，与较量oppose (doing) sth./sb.doing sth.反对(做)某事/反对(某人)做某事(3)opposite adj.对面的，相反的即时跟踪 (1)用所给动词的正确形式填空The husband strongly opposed his wife going(go) there alone.This exercise develops skills as opposed(oppose) to strength.He opposed building(build) a new hall.(2)单句改错She is strongly opposed

44、against their plan.againsttoThere is no doubt that.语境感悟(1)(教材P26)There is no doubt that the earth is becoming warmer (see Graph 1) and that it is human activity that has caused this global warming rather than a random but natural phenomenon.毫无疑问，地球正在变暖(见表一)，而全球变暖正是人类活动导致的，并非是一种无规律的自然现象。(2)Is there a

45、ny doubt that he will come?他回来还有任何疑问吗？(3)I dont doubt that he is honest.我不怀疑他是诚实的。(4)I doubt whether/if he will be against the idea.我怀疑他是否会反对这一想法。归纳拓展(1)There is no doubt意为“毫无疑问”，后接that从句或“about名词”结构。There is doubt意为“值得怀疑”，后接whether引导的从句或“about名词”结构。(2)doubt v.& n.怀疑；疑问作动词时，其用法如下：在否定句和疑问句中，doubt后面接t

46、hat引导的宾语从句。在肯定句中，doubt后面一般接whether或if引导的宾语从句。作名词时，用法如下：用于肯定句时，一般接whether引导的同位语从句。用于否定句、疑问句时，一般接that引导的同位语从句。(3)be in doubt犹豫不决beyond doubt无疑地即时跟踪 (1)单句语法填空I dont doubt that he can finish the task on time.I doubt if/whether they can swim across the river.There is no doubt that she will come in time.I

47、 have some doubt whether he will be elected.When in doubt，were here for you.Give us a call.(2)单句改错There is no doubt whether he can win the game.whetherthat.单句语法填空1.Because of the global warming，the temperature goes up.2.He took a book at random.3.“I didnt mean to upset you，” he said mildly(mild).4.T

48、hough he is less than one year old，he is strong enough to walk steadily (steady).5.I tend to wake(wake) up early in the morning.选词填空 1.I dont know how these quarrels came about.2.Keep on until you get to the church.3.Any honest man will be opposed to such a policy.4.It looks like your cost went up b

49、y 2.5% for packaging.5.The reform has resulted in great changes in our country.完成句子1.毫无疑问，小麦的价格将会上涨。There is no doubt that the price of wheat will go up.2.我在他口袋里发现的是一把钥匙。It was a key that I found in his pocket.3.没有你的帮助，我无论如何也不会成功。Without your help，I wouldnt have succeeded anyway.4.我们不同意我们已经失败的观点。We

50、dont subscribe to the view that we have failed.5.大风吹走了肥沃的土壤，只剩下了沙子。The strong wind blew away the good soil，leaving only sand.课文语法填空All scientists subscribe to the view that it is human activity 1.that has caused the global warming.This activity is burning fossil fuels to produce energy.As 2.a result

51、，a natural phenomenon 3.called(call) the “greenhouse effect” has come 4.about.Without this phenomenon，the earth would be about thirtythree degrees Celsius cooler 5.than it is.So，we need those gases.However，the global temperature 6.will rise(rise) when we add huge quantities of extra carbon dioxide i

52、nto the atmosphere.We know that the levels of carbon dioxide 7.have increased(increase) greatly over the last 100 to 150 years.The attitudes of scientists towards this rise are pletely(complete) different.Some think that the trend would be a catastrophe 9.while some are opposed to this view，and they predict that any warming will be mild 10.with few bad environmental consequences.