unit4globalwarmingReading市公开课一等奖省赛课微课金奖课件.pptx

单击此处编辑母版标题样式,单击此处编辑母版文本样式,第二级,第三级,第四级,第五级,1/84,Unit 4,Global warming,Reading,高二人教新课标版选修六,2/84,Pre-reading,3/84,4/84,5/84,1.Have you ever seen a greenhouse?,is made of,glass,used for,growing plants,especially during cold weather.,6/84,2.How does the greenhouse work?,7/84,The air inside was warm because the,glass,traps,(挡住,吸收),the heat from the,sun and,keeps it from escaping,(逃跑).,This makes the greenhouse,heat,up,(热量,上升),and so the plants can grow,throughout,(在期间),the cold period.,8/84,3.What are Greenhouse,Gases?,Methane,4,Ozone,5,1,Carbon dioxide,2,Water vapor,1,1,Nitrous oxide,3,9/84,4.Greenhouse Effect,Global warming,Greenhouse gases trapped the,heat from the sun,which causes the temperature of earth goes up.,10/84,Greenhouse,effect,11/84,Green house effect,12/84,Greenhouse,Global warming,Are they all beneficial?,？,13/84,THE EARTH IS BECOMING WARMER BUT DOES IT MATTER?,Reading,14/84,1)How many paragraphs does the reading,2)Make a division of the text.,Read the passage quickly(3),text consist of?Please number them.,Fast-Reading,15/84,Main ideas of each part:,Part1,(1),Introduce a debate over the issue of global warming.,raising a,question,Part2,(2-5),How global warming,comes about.,giving,examples,using graphs,explanation,16/84,Part3,(6),List two different attitudes,among scientists towards,global warming.,Part3,(7),Its up to readers to think and,decide whether people should,do something about global,warming or not.,giving examples,making contrast,leaving a question,17/84,Are the risks too great?,So can you predict the future of the,global warming?,18/84,Who writes this article?,Sophie Armstrong of,Earth Care,What rose about,one degree Fahrenheit?,The temperature of the earth,Careful reading,Part1,(1),Introduction of global warming.,19/84,2._,1._,Part2,(2-5),How,global warming comes about?,the burning of fossil fuels,human activity,Carbon,dioxide,Methane,What are the,Greenhouse,gases?,1.,2.,3.,Water,vapor,20/84,Part3,(6-7),What are the effects of global warming?,a rise in the sea level,Severe storms,droughts,famines,the spread of diseases,and the,disappearance of species,Make plants grow faster,effects,21/84,Read and answer the questions.,1.Who wrote the magazine article?,What is the name of the magazine?,2.What are the names of the three,scientists mentioned in the article?,1.Sophie Armstrong,Earth Care.,2.Dr Janice Foster,Charles Keeling,George Hambley.,22/84,3.What do the three scientists think about,global warming?,believes it is the burning of more,and more fossil fuels that is resulting,in a big increase in carbon dioxide.,Dr.Janice Foster,George,Hambley,Charles,Keeling,thinks the effects of globalm,warming could be very serious,(严重).,thinksglobal,warming,will be,mild with few bad environmental,consequences.,23/84,The different ideas between Dr.Janice Foster&George Hambley,Dr.Janice Foster,George Hambley,Carbon dioxide has caused the global temperature to _.An increase of five degrees would be a _ and could be _.,More carbon dioxide is a _ thing,which makes crops _ more and will encourage _.,go,up,catastrophe,very,serious,positive,produce,a greater range of animals,24/84,4.What are the two graphs about?,The first graph shows,the temperature,increase of one degree Fahrenheit between,1860 to.,The second graph shows,the carbon dioxide,content in the atmosphere from 1957 to 1997.,25/84,from around 315 parts per million,to around 370 parts per million,Huge quantities of extra carbon dioxide,From 1957 to 1997,5.What is the main topic of the article?,Global warming/the warming of the earth.,26/84,1.Who found out the amount of carbon,dioxide in the atmosphere from 1957,to 1977?,A.Dr.Janice Foster.,B.Charles Keeling.,C.George Hambley.,D.Sophie Armstrong.,B,Choose the best answer.,27/84,2.Which of the following is Dr Janice Fosters,opinion?,A.The result of the temperature increase,will be serious.,B.The amount of warming is nothing serious.,C.We neednt worry about high levels of,carbon dioxide.,D.Global warming is a natural phenomenon.,A,28/84,3.Which of the following is TRUE according,to the text?,A.The temperature of the earth increased,about one degree Fahrenheit during the,20th century.,B.The carbon dioxide content in the air,increased by 70 parts per million from,1957 to 1997.,C.All scientists accept the data in graph 2,except Charles Keeling.,D.Janice Foster says that more carbon,dioxide will make plants grow faster.,A,29/84,4.The author probably agrees that _A.actually global warming is good for man.B.we should do nothing about the global,warming.C.catastrophes will happen if the globe,keeps on warming.D.a lot remains to be found out about the,effects of global warming.,D,30/84,True or false?,1.The temperature in the last century did not seem to increase much.,2.Everyone believes that global warming is caused by the activities of humans.,3.Janice Foster believes that she can measure the future global rise in temperature.,T,T,F,31/84,4.The rise in carbon dioxide is causing,a steady increase in global warming.,5.George Hambley believes that global,warming will do good rather than harm,to the earth.6.It is clear what the effects of global,warming will be.,T,T,F,32/84,Summary,Try to talk in general terms rather than in details.,e.g:,I learnt that the earth is becoming warmer.,I learnt that global warming could have,terrible effects on the environment.,33/84,A,:,We shall do something about global warming.,B,:,We shall do nothing about global warming.,Debate,34/84,What we should do to,protect our earth?,Discussion:,35/84,1.Reduce the burning of fossil fuels,2.Plant trees,3.Use bags that can be recycled,36/84,It is a rapid increase when,compared,to,other natural changes.,compare,vt.,1),比较;对照,comparewith,表示“把与相比,(同类相比)”如：,Compare,your answers with those at the,back of the book to see if they are right.把你答案同书后面答案对照一下,看看是否正确。,Language points,37/84,2),喻为;比拟,compareto,表示“把比做(异类,相比,比喻)”如：Mans life is often compared do a candle.,人生常被比为蜡烛。,My handwriting can not be,compared,with my fathers.,我书法不能与我父亲相比。,38/84,Shakespeare,compared,the world,to,a,stage.,莎士比亚把人世比做舞台。,知识拓展,compared to/with,与相比,普通在句子中作状语。,Compared to/with many women,she was indeed very fortunate.,39/84,come about:,发生,造成,相当于happen,你能告诉我事情是怎么发生吗？,Can you tell me how the accident came,伴随电使用,种种大改变发生了。,With the use of electricitygreat changes,have come about.,come out,出现;传开;公开,come,up,发生、举行;出现,2.So how has this,come about,and does,it matter?,40/84,come about,是不及物短语。如：,1)Please tell me how the accident _.,I am still in the dark.,(,江西,),A.came by,B.came,out,C.came to,D.came about,D,41/84,2)Its already 10 oclock.I wonder how,it _ that she was two hours late on,such a short trip.(,湖北,),A.came over B.came out,C.came about D.came up,解析:已经十点钟了,我不知道是怎么,回事,这么短旅程她迟到了两个小时。,come over 来访,come out 出来,出版,come up 出现,C,42/84,3.There is,no doubt that,.,doubt,1)作不可数名词,作“疑惑;怀疑”,必定句中doubt多接whether(普通不用if代替),同位语从句。如:,Theres some doubt _ hell keep his,promise.他会不会信守诺言还难说。,She had her doubts _ the new book,would sell well.她怀疑新书是否会畅销。,whether,whether,43/84,否定句中doubt多接that同位语从句。如:,There is no doubt _ they will ask you,for help.毫无疑问,他们会请你帮忙。,I have no doubt _ you will succeed.,我毫不怀疑你会成功。,2)作及物动词惯用于以下句型中,作“怀疑;,不能必定;不大相信”解,普通不用进行时态。,that,that,44/84,用于否定句或疑问句,后接that引导宾语,从句。如:,I dont doubt _ he is telling the truth.,我毫不怀疑他在讲真话。,Do you doubt _ he will win the match?,你怀疑他会赢这场比赛吗?,用于必定句,普通接whether 或if引导宾语,从句。如:,I doubt _ we will make a profit out,of it.我认为我们不可能从此事中赢利。,We doubt _ she will be persuaded.,我们不知道她会不会被说服。,whether/if,whether/if,that,that,45/84,考点1,There is no doubt that.,是固定,句型,意为“毫无疑问”,that引导,是同位语从句，用来深入补充说明,doubt详细内容。如：,Some researchers believe that there is no,doubt _ a cure for AIDS will be found.,(广东),A.which B.thatC.what D.whether,B,46/84,考点2 it is.that.组成强调句型,强调,是主语human activity。强调句型可,强调主语、宾语或状语。如：,It is not who is right but what is right,_ is of importance.(重庆),A.which B.itC.that D.this,解析:将it is和that去掉后,此句成为,Not who is right but what is right is of,importance,句子完整,故此题是一个,强调句型。,B,47/84,I dont mind her criticizing me,but,_ is how she does it that I object to.,(,江西,),A.itB.thatC.this D.which,解析:去掉it is和that后,本句相当于.,but I object to how she does it,是个完整,句子。故此句是it强调句型,被强调,部分是宾语从句。,A,48/84,4.phenomenon,n.现象;奇迹;罕见人才,或事物,eg:雨雪是天气现象。,Rain and snow are,phenomena,of the weather.,eg:不应该简单地视未婚妈妈为一个社会现象。,Unmarried mothers should not be regarded,simply _.,eg:贝多芬是音乐家中天才。,Beethoven was _ among,musicians.,pl.phenomena,as a social phenomenon,a phenomenon,49/84,5.subscribe to,1)同意;支持,I dont subscribe to such views.我不一样意这么观点。,2)对.捐款,Many people subscribed liberally to,the relief fund.许多人为救灾基金慷慨解囊。,50/84,3)(在文件等下面)署名,He subscribed his name to a petition.,他在请愿书上署名。,4)订阅(书籍等),He subscribed to Readers Digest.,他订阅读者文摘。,51/84,6.,Without,the green house effect,the earth,would be about thirty-three degrees Celsius,cooler than it is.,假如没有温室效应,地球会比现在冷33。,这是一个含蓄虚拟条件句。,有时假设情况并不以条件从句形式表示,出来,而是经过一个介词短语或其它方式,表示。惯用词或短语有:,without,but for,but that,otherwise,or,but,等。,52/84,e.g.,Without,your help(=If we had not,had your help),we could not have,succeeded,要是没有你帮助,我们是不会成功。,He felt very tired yesterday,or,he would,have attended the party,他昨天很累,不然他就参加那个聚会了。,53/84,But for,electricity(=If there were no,electricity),there would be no modem,industry,要是没有电,就不会有当代工业。,He was having a meeting with his,students,otherwise,he would have,come.,他当初正与他学生进行讨论,不然,话他就来帮我们了。,54/84,7.quantity,n.,数量;量,“a large/small quantity of+不可数名词,和可数名词复数”表示“大量/少许”,也能够用“large/small quantities of+,不可数名词或可数名词复数”来表示。,使用方法归纳:a quantity of 大量,quantities of 大量,There is a small quantity of water left,in the bottle.瓶子里还剩下少许水。,She has quantities of good clothes.,她有许多好衣服。,55/84,尤其提醒,a quantity of,后可接不可数名词或,可数名词复数形式。当它修饰名词,作主语时,谓语名词用单数;,而,quantities of,后一样可接不可数名词,或可数名词复数形式,但谓语用复数。,amounts of,+不可数名词充当句子,主语时,其谓语动词用复数。,56/84,8.go up,1)上升,Prices have gone up again.物价又上涨了。,2)被建造起来,New factories are going up everywhere.处处于兴建新工厂。,3)被焚毁,The whole building went up in flames.整幢楼被焚毁了。,57/84,9.,It was,a scientist called Charles Keeling,who,made accurate measurements of the,amount,of,carbon dioxide in the atmosphere from 1957 to 1997.,是一位名叫查尔斯奎林科学家把1957至1997年期间大气层中二氧化碳含量作了准确统计。,解析:该句是一个强调句。,58/84,amount of 习惯用语:,an amount of 相当数量;一些,any amount(of)任何数量();大量(),be of little amount 不主要;无价值,amount,n,.数量,large amounts of money 大量金钱,In an invoice,the amount of money,should be written both in words and,in figures.,发票上钱数要用字和数码写出来。,59/84,10.result in,结果;致使;造成,主语:in 宾语:,起因,结果,Acting before thinking always results,_ failure.,做事不先考虑总会造成失败。,The accident resulted _ the death oftwo people.,这场意外事故造成两人死亡。,in,in,60/84,result,from,起于,因为,由引发,主语：from 宾语：,His sickness resulted _ eating too,much.,起因,结果,from,61/84,causebring about lead to,cause,表示因果关系比较直接,Smoking can cause lung cancer.,My car has caused me a lot of trouble.,2),bring about,表示因果关系不那么,直接,The war brought about a reduction in,the birth rate.,3),lead to,相当于,cause,The strike could lead to a loss of jobs.,62/84,11.,On the other hand,there are those,like George Hambley,who are opposed,to this view,believe that we should not,worry about high levels of carbon,dioxide in the air.,在另首先,还有一些人,对这一观点,持反对态度,像科学家乔治,汉布利,他们认为我们无须担心空气中高含量,二氧化碳。,63/84,分析:,该句是一个主从复合句。主句为,there are those,like scientist George,Hambley 作句子插入语,who引导,定语从句修饰those,且在该定语从句中,其谓语动词believe又带有that引导,宾语从句。句子主要部分能够表示为:,.there are those who believe that.,64/84,on the other hand:,另首先,Id like to eat out,but,on the other,hand,I should be trying to save money.I want to go to the party,but,on the,other hand,I ought to be studying.,我想去参加聚会,但从另首先来说,我应该留下来学习。,65/84,12.oppose,vt,.反对;反抗 如：,I am opposed to going shopping with others.,我反对与他人一起外出购物。,He is strongly opposed to the plan.,他强烈反对这一计划。,oppose sth./doing sth.,反对某事/做某事,be opposed to sth./doing sth.,反对某事/做某事,oppose后若接动词,则用其动名词形式，,而不用动词不定式。,66/84,oppose doing sth.=object to doing sth.,反对做某事,The young man opposed/objected to,turning to his parents for help.,这个年轻人反对向他父母求援。,易混辨析,oppose,(尤指采取行动)反对,反抗(某事),be opposed to,首先相当于be against,“反对”;另首先相当于be opposite to,“相对”。,67/84,13,.consequence,n.结果,后果,影响,in consequence,所以,as a consequence,结果,as a consequence of,因为结果,It rained yesterday and in consequence the match was canceled.,He studied hard,and in consequence he passed the exam.,68/84,+n.,14.state,+that从句,+wh-从句；,他已公开申明他会支持那项政策。,He has publicly _ _ _ for the policy.,stated his support,我听见那位官员说不接纳儿童。,I heard the official,state,that,they would,not accept children.,合同清楚地叙述了那项工作应在何时完成。,The contract,stated,when,the work should,be finished.,v.陈说,申明；,n.情况,情况;国家；,69/84,15.range,v,.排列,使成行;偏袒,站在方面,n,.范围(尤指从到各种种类,可供选择,范围等,可加不定冠词);排列,beyond the range of 超越范围,out of ones range 某人达不到,这家商店商品品种多。,The shop keeps 常可用于:1)被动结构 2)range oneself；,3)range from to /betweenand,从到不等,a wide range of goods,70/84,老师令其学生沿着小径排队。,The teacher _ along the path.,温度在15度到35度之间。,The temperature _.,我们应该列身于法律与秩序一边。,We should _ on the side of,law and order.,ranged his students,ranges from 15 to 35 degrees,range ourselves,71/84,16.,even if/though:,即使;即使,He will come on time even though it rains.,即使下雨,他还是会按时来。,I wouldnt tell you,even if,I knew.,Even if,she survives,shell never fully recover.,Even though,hes 24 now,hes still like a,little child.,I can still remember,even though,it was,so long ago.,72/84,A large q_ of rice is badly needed,here.,2.Students are from a wide r_ of,backgrounds.,3.She studied hard,and in c_,she passed the exam.,4.The park attracts 4 million visitors,p_ year.,uantity,ange,onsequence,er,依据句意及所给单词首字母或汉语,提醒,写出各单词正确形式。,73/84,5.What sort of _(燃料)do these,machines need?,6.The _(数据)is still being analysed.,So dont be so worried.,7.The earthquake was a terrible,_(大灾难).,8.A rainbow is a natural _,(现象)especially after a heavy rain.,10.The _(曲线图)of export indicates,a new success of the company.,graph,fuel,data,catastrophe,phenomenon,74/84,II.依据句意,选择适当单词或短语填空,1.climate;weather,Its very difficult for her to get used to,the dry and cold _ there.,b.How we wish the sunny _ could,keep up for another several days!,e about;come across,Ive never _ anyone quite,like her before.,b.Please tell me how the accident,_.I am still in the dark.,climate,weather,come across,came about,75/84,3.quantity;quality,a.Much of the land was of poor _.,b.Buy vegetables in small _,for your immediate use.,4.result in;result from,The accident _ the death,of three people.,b.His failure _ not,working hard enough.,quality,quantities,resulted in,resulted from,76/84,5.glance;glare;stare,He _ angrily at her across,the dinner table.,b.She _ at the page for several,minutes,trying to understand.,c.She _ round the room before,she left.,glared,stared,glanced,77/84,1.It was very late,but they went on working.,It was very late,but they _ _ working.,2.We dont doubt that he can do a good job.,_ _ _ _ _ he can do a good job.,3.Their carelessness led to the failure.,Their carelessness _ _ the failure.,kept on,There is no doubt that,resulted in,III.每空一词,使两个句子意思相同。,78/84,4.I dont know how the accident happened.,I dont know how the accident _ _.,5.The factory turns out a large number of,paper products.,The factory turns ou