1、Unit 4,Global warming,Section Warming Up & Reading,一、课文大意填空,From the passage we know that the (1)_ of the earth,is on (2)_ At the same time, this passage also shows us,peoples (3)_ ideas about (4)_ warming, andanalyses the reasons for global warming and the possible impactbased on (5)_ and data.,tem
2、perature,rise,different,global,graphs,二、根据课文内容，选择最佳答案1 Who found out the amount of carbon dioxide in theatmosphere from 1957 to 1977? _,ADr Janice Foster.CGeorge Hambley.,BCharles Keeling.DSophie Armstrong.,2Dr Janice Foster believes that global warming is caused by_.,Aburning fossil fuelsCwater vap
3、or,Bgreen houseDnatural gas,B,A,3The author probably agrees that _.Aactually global warming is good for man,Bwe should do nothing about the global warming,Ccatastrophes will happen if the globe keeps on warmingD a lot remains to be found out about the effects of global,warming,D,4Which is NOT the ef
4、fect of global warming? _AThe sea level will rise.B Severe storms, droughts, famines, the spread of di-seases,and destruction of species will happen.CCrops will produce less.DPlants will grow faster.5What is the main idea of the passage? _,AGlobal warming.CEconomic crisis.,BAir pollution.DTsunamis.,
5、C,A,三、阅读课文，然后完成下列表格,The different ideas between Dr Janice Foster & George,Hambley,go up,catastrophe,serious,positive,more,greater,So how has this come about and does it matter？这种温,度的增长是怎么产生的呢？会产生什么影响呢？1come about 发生；造成,典例 Do you know how the accident came about?你知道车祸是怎么发生的吗？拓展 come along 一起来；进展,come
6、 across (偶然)遇见come up 发生；举行come up with 提出,come out 出现；出版；(消息)传开；(观点)公开,运用 用 come 及其构成短语的适当形式填空,Im going to see a movie today. Do you want to _？,An earthquake _ in that country two,months ago.,Her wedding is _ soon.,It was getting dark and the moon was _.I _ a friend in KFC yesterday.,come along,cam
7、e about,coming up,coming out,came across,There is no doubt that the earth is becoming warmer(see Graph 1) and that it is human activity that has caused thisglobal warming rather than a random but natural phenomenon.毫无疑问，地球正在变暖(见表 1)，但全球变暖是人为的，而不是随意的自然现象。2There is no doubt that.,解析,There is no doubt
8、that.表示“毫无疑问”，that,引导的从句为名词 doubt 的同位语从句，进一步解释“怀疑”的具体内容。如：There is no doubt that shortsightedness is a serious problemamong the youth of our country.毫无疑问，近视在我国年轻人中是一个严重的问题。,运用 完成句子,_ (毫无疑问) youll be warmly welcomed.,There is no doubt that,All scientists subscribe to the view that the increase inthe
9、earths temperature is due to the burning of fossil fuels like,coal, natural gas and oil to produce energy.所有的科学家都赞成这个观点，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。,3subscribe vi.同意；捐赠；订阅 vt.签署(文件)；捐助,典例 He didnt subscribe to my proposal.他不赞同我的建议。,He subscribed his name to the form.他在表上签了名。拓展 subscribe
10、 to 同意；赞成；订购，订阅,运用 完成句子,I have never _ ( 同 意 ) the view that,schooldays are the happiest days of your life.,The lawyer invited his client to _ ( 签署),the affidavit (宣誓书),subscribed to,subscribe,The problem begins when we add huge quantities of,extra carbon dioxide into the atmosphere.当我们在大气层中增加了大量额外的
11、二氧化碳时，问题就来了。4quantities of 大量的,解析 quantities of 表示“大量的”，既可用来修饰可数名词复数，也可用来修饰不可数名词，其谓语动词要用复数。如：Quantities of paper products are produced in this factory.这家,工厂生产大量的纸制品。,Trees can give off quantities of water every day.树木每天可以释放出大量的水分。,拓展 (1)a quantity of 大量的(后接谓语动词用单数)in quantity 在数量上；大量地in large quanti
12、ties 大量地,(2)表示“大量的”的常用短语有：只可修饰可数名词：,many, many a ( 谓语动词用单数 ), a great/good many, a,great/large number of/numbers of,只可修饰不可数名词：,much, a great/large amount of/amounts of, a good/great deal,of,既可修饰可数名词，又可修饰不可数名词：,a lot of/lots of, a quantity of/quantities of, plenty of,运用 用所给单词的适当形式填空,Quantities of foo
13、d _ (be) put on the table.A large quantity of apples _ (be) sold out.,are/were,is/was,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将被困在大气层中，从而引起全球气温上升。5tend,解析 (1)vi.趋向；易于；照顾,Old people tend to get fat.老年人容易发胖。,(2)vt.照顾；护理,She
14、is good at tending little children.她擅长照看小孩。,拓展 tend to do sth.倾向做某事tend to/towards sth.倾向于某事tend (to) sb./sth.照顾某人/某物运用 完成句子,We hire a girl to _ ( 照顾孩子们) for a,few hours each day.,The drug is effective but _ ( 易于) cause,headaches.,tend (to) the children,tends to,6go up 上升；增长；升起,典例 Prices of fruit an
15、d vegetables have gone up.水果和蔬菜的价格已经上涨了。拓展 go by 经过；消失,go down 下降；下沉,go over 复习；仔细检查go through 经历；遭受go on 发生；继续,运用 用上面所提供的短语的适当形式填空,We hope the water level in Changjiang River will stop,_.,Youre supposed to _ the goods before,you sign.,going up,go over,They also agree that it is the burning of more
16、and morefossil fuels that has resulted in this increase in carbon dio-xide.,他们还赞同下述观点：正是由于越来越多的燃烧化石燃料导致了二氧化碳的增加。7result in 导致,典例 Our actions can result in disaster.我们的行为会引起灾难。,辨析 result in/result from,(1)result in 意为“导致；结果是”，指引起某种结果，即,主语是因，宾语是果。如：,Any of these may result in serious injury or death.这
17、些中的任何一个都会导致严重的伤害或死亡。,(2)result from 意为“起因于”，指某种结果起因于某事，,即主语是果，宾语是因。如：,Two conclusions result from this fact.从这一事实中可以得出两个结论。,运用 用上面所提供的辨析短语的适当形式填空,The flood _ a considerable decrease in,production.,His failure_ not working hard enough.,resulted in,resulted from,On the other hand, there are those, lik
18、e GeorgeHambley, who are opposed to this view and believe that weshould not worry about high levels of carbon dioxide in the air.,在另一方面，还有一些人，像乔治汉布利，他们反对上面的观点，认为我们不必担心空气中会有高含量的二氧化碳。8oppose vt.反对；反抗；与(某人)较量,典例 His motion was opposed by most directors.他的提议遭到了大多数董事的反对。,拓展 oppose oneself against/to.(使)某
19、人反对,be opposed to 反对,运用 完成句子,His parents were _ (反对) their sons rush,decision.,The young man _ ( 使他自己反对 ),the new policy on behalf of his group.,opposed to,opposed himself to/against,They predict that any warming will be mild with few,bad environmental consequences.他们预言说，变暖的情况不会很严重，对环境的影响也不会太坏。9cons
20、equence n结果；后果；影响,典例 Such a mistake may lead to disastrous consequences.这样一种错误可能会导致灾难性的后果。拓展 as a/in consequence 因而；结果in consequence of 由于的缘故,take the consequences (of) 承担(某事的)后果of little consequence 意义不大，无足轻重,运用 完成句子,_ (结果), the man failed in the game.The cake went bad _ (由于) the hot,weather.,The c
21、onfident girl thinks that beauty _,(意义不大) to her.,As a/In consequence,in consequence of,is of little consequence,“.it will encourage a greater range of animalsall ofwhich will make life for human beings better.” “它还会促进动物的生长所有这些都能改善人类的生活。”10range,解析 (1)n.种类；范围,There is a full range of activities for
22、children.这里给孩子们提供各种活动。,She has a wide rang of interest.她有广泛的兴趣爱好。,(2)v.排列；归类于；变化；延伸,The cards were ranged in alphabetical order.卡片以字母顺序排列。,The prices of leather shoes range from 100 to 250 dollars.皮鞋,的价格从 100 美元到 250 美元不等。,拓展 in/within the range of 在的范围内,in range with 和并列a range of 一系列的；一排,range fro
23、m.to.在到范围内,运用 完成句子, The watches _ ( 在 这 个 范 围 内 ) are,priced at 24.50 dollars.,The show had a massive audience, _,(范围从孩子到) grandparents.,I offered her _ (一系列的) opinions.,within/in this range,ranging from children to,a range of,Greenhouse gases continue to build up in the,atmosphere.温室气体继续在大气层中聚集。,11
24、build up 聚集；集结；增强；建立,典例 The clouds are building up.乌云正在聚集起来。,The weightlifting built up his body.举重增强了他的体质。,She built up my confidence.她帮我树立了信心。拓展 build on 加/扩建；建立在(基础)上,运用 完成句子Many a big business has been _ ( 聚 集 )from small ones.,The,company,donated,1,million,dollars,to,_ (增强) its honour.You can _
25、 ( 建 立 在 基 础 上 ) whatother people did, and provide things for other people to_ (在基础上构建),built up,build up,build on,build on,Even if we start reducing the amount of carbon dioxideand other greenhouse gases, the climate is going to keep on,warming for decades or centuries.即使我们开始减少二氧化碳 和其他温室气体的含量，在(未来)
26、几十年或几个世纪内，气候 仍会持续转暖。12even if,解析 even if 意为“即使”，相当于 even though，用于引 导让步状语从句。若从句所假设的事情难以实现，则从句的谓语动词要用虚拟语气。如：,Well go even if it rains.即使下雨我们也要去。,Even if you saw him pick up the money, you cant be sure he,stole it.,就算你看见是他拾起的钱，你也不能肯定钱就是他偷的。,运用 完成句子,_ ( 即 使 ) it will take me six weeks, I am,determined
27、to finish the task.,Even if/though,13keep on,解析 keep on sth./doing sth.意为“继续做某事”。如：,They kept on working after dark.,天黑后他们还继续工作。,If we keep on our way for another hour, we should reach the,village.,如果再继续向前走一小时， 我们就到那个村子了。拓展 keep off 躲开，避开,keep to 坚持，信守,keep up 保持良好状态；保持；继续；不落后，赶得上keep ones feet 站稳，不
28、跌倒,辨析 keep on doing/keep doing,(1)keep on doing 强调“继续干某事”，其动作是时断时续,的，常与表示短暂动作的动词连用。如：,She kept on asking me what the time was.她一直在问我几点了。,(2)keep doing 强调“不间断地或持续地做”，常与表示延,续动作的动词与静止状态的动词连用。如：The machine kept running.机器一直在运转。,运用 用上面所提供的辨析短语的适当形式填空,Though it was raining, they _ reaping (收,割) the rice.,I _ standing in the train all the way.,kept on,kept,
