人教版 选修六 Unit 4 Global warmingReading课件（共83张PPT）.ppt

unit4globalwarmingreading pre reading 1 haveyoueverseenagreenhouse 2 howdoesthegreenhousework theairinsidewaswarmbecausetheglasstraps 挡住 吸收 theheatfromthesunandkeepsitfromescaping 逃跑 thismakesthegreenhouseheatup 热量上升 andsotheplantscangrowthroughout 在 期间 thecoldperiod 3 whataregreenhousegases 4 greenhouseeffect globalwarming greenhousegasestrappedtheheatfromthesun whichcausesthetemperatureofearthgoesup greenhouseeffect greenhouseeffect greenhouse globalwarming aretheyallbeneficial theearthisbecomingwarmerbutdoesitmatter reading 1 howmanyparagraphsdoesthereading2 makeadivisionofthetext readthepassagequickly 3 textconsistof pleasenumberthem fast reading mainideasofeachpart part1 1 introduceadebateovertheissueofglobalwarming raisingaquestion part2 2 5 howglobalwarmingcomesabout givingexamples usinggraphs explanation listtwodifferentattitudesamongscientiststowardsglobalwarming it suptoreaderstothinkanddecidewhetherpeopleshoulddosomethingaboutglobalwarmingornot givingexamples makingcontrast leavingaquestion aretheriskstoogreat socanyoupredictthefutureoftheglobalwarming whowritesthisarticle sophiearmstrongofearthcarewhatroseaboutonedegreefahrenheit thetemperatureoftheearth carefulreading part1 1 introductionofglobalwarming 2 1 part2 2 5 howglobalwarmingcomesabout theburningoffossilfuels humanactivity carbondioxide methane whatarethegreenhousegases 1 2 3 watervapor part3 6 7 whataretheeffectsofglobalwarming ariseinthesealevelseverestorms droughts famines thespreadofdiseases andthedisappearanceofspeciesmakeplantsgrowfaster effects readandanswerthequestions 1 whowrotethemagazinearticle whatisthenameofthemagazine 2 whatarethenamesofthethreescientistsmentionedinthearticle 1 sophiearmstrong earthcare 2 drjanicefoster charleskeeling georgehambley 3 whatdothethreescientiststhinkaboutglobalwarming believesitistheburningofmoreandmorefossilfuelsthatisresultinginabigincreaseincarbondioxide dr janicefostergeorgehambleycharleskeeling thinkstheeffectsofglobalwarmingcouldbeveryserious 严重的 thinksglobalwarmingwillbemildwithfewbadenvironmentalconsequences thedifferentideasbetweendr janicefoster georgehambley goup catastrophe veryserious positive produce agreaterrangeofanimals 4 whatarethetwographsabout thefirstgraphshowsthetemperatureincreaseofonedegreefahrenheitbetween1860to2000 thesecondgraphshowsthecarbondioxidecontentintheatmospherefrom1957to1997 5 whatisthemaintopicofthearticle globalwarming thewarmingoftheearth 1 whofoundouttheamountofcarbondioxideintheatmospherefrom1957to1977 a dr janicefoster b charleskeeling c georgehambley d sophiearmstrong b choosethebestanswer 2 whichofthefollowingisdrjanicefoster sopinion a theresultofthetemperatureincreasewillbeserious b theamountofwarmingisnothingserious c weneedn tworryabouthighlevelsofcarbondioxide d globalwarmingisanaturalphenomenon a 3 whichofthefollowingistrueaccordingtothetext a thetemperatureoftheearthincreasedaboutonedegreefahrenheitduringthe20thcentury b thecarbondioxidecontentintheairincreasedby70partspermillionfrom1957to1997 c allscientistsacceptthedataingraph2exceptcharleskeeling d janicefostersaysthatmorecarbondioxidewillmakeplantsgrowfaster a 4 theauthorprobablyagreesthat a actuallyglobalwarmingisgoodforman b weshoulddonothingabouttheglobalwarming c catastropheswillhappeniftheglobekeepsonwarming d alotremainstobefoundoutabouttheeffectsofglobalwarming d trueorfalse 1 thetemperatureinthelastcenturydidnotseemtoincreasemuch 2 everyonebelievesthatglobalwarmingiscausedbytheactivitiesofhumans 3 janicefosterbelievesthatshecanmeasurethefutureglobalriseintemperature t t f 4 theriseincarbondioxideiscausingasteadyincreaseinglobalwarming 5 georgehambleybelievesthatglobalwarmingwilldogoodratherthanharmtotheearth 6 itisclearwhattheeffectsofglobalwarmingwillbe t t f summary trytotalkingeneraltermsratherthanindetails e g ilearntthattheearthisbecomingwarmer ilearntthatglobalwarmingcouldhaveterribleeffectsontheenvironment a weshalldosomethingaboutglobalwarming b weshalldonothingaboutglobalwarming debate whatweshoulddotoprotectourearth discussion 1 reducetheburningoffossilfuels2 planttrees3 usebagsthatcanberecycled itisarapidincreasewhencomparedtoothernaturalchanges comparevt 1 比较 对照compare with 表示 把 与 相比 同类相比 如 compareyouranswerswiththoseatthebackofthebooktoseeiftheyareright 把你的答案同书后面的答案对照一下 看看是否正确 languagepoints 2 喻为 比拟compare to 表示 把 比做 异类相比 比喻 如 man slifeisoftencomparedtoacandle 人生常被比为蜡烛 myhandwritingcannotbecomparedwithmyfather s 我的书法不能与我父亲的相比 shakespearecomparedtheworldtoastage 莎士比亚把人世比做舞台 知识拓展comparedto with与 相比 一般在句子中作状语 comparedto withmanywomen shewasindeedveryfortunate comeabout 发生 造成 相当于happen你能告诉我事情是怎么发生的吗 canyoutellmehowtheaccidentcameabout 随着电的使用 种种大变化发生了 withtheuseofelectricity eout出现 传开 公开comeup发生 举行 出现 2 sohowhasthiscomeaboutanddoesitmatter comeabout是不及物短语 如 1 pleasetellmehowtheaccident iamstillinthedark 2005江西 a camebyb cameoutc cametod cameabout d 2 it salready10o clock iwonderhowit thatshewastwohourslateonsuchashorttrip 湖北2006 a cameoverb cameoutc cameaboutd cameup解析 已经十点钟了 我不知道是怎么回事 这么短的路程她迟到了两个小时 comeover来访comeout出来 出版comeup出现 c 3 thereisnodoubtthat doubt1 作不可数名词 作 疑惑 怀疑 肯定句中doubt多接whether 一般不用if代替 同位语从句 如 there ssomedoubt he llkeephispromise 他会不会信守诺言还难说 shehadherdoubts thenewbookwouldsellwell 她怀疑新书是否会畅销 whether whether 否定句中doubt多接that同位语从句 如 thereisnodoubt theywillaskyouforhelp 毫无疑问 他们会请你帮忙的 ihavenodoubt youwillsucceed 我毫不怀疑你会成功的 2 作及物动词常用于下列句型中 作 怀疑 不能肯定 不大相信 解 一般不用进行时态 that that 用于否定句或疑问句 后接that引导的宾语从句 如 idon tdoubt heistellingthetruth 我毫不怀疑他在讲真话 doyoudoubt hewillwinthematch 你怀疑他会赢这场比赛吗 用于肯定句 一般接whether或if引导的宾语从句 如 idoubt wewillmakeaprofitoutofit 我认为我们不可能从此事中获利 wedoubt shewillbepersuaded 我们不知道她会不会被说服 whether if whether if that that 考点1 thereisnodoubtthat 是固定句型 意为 毫无疑问 that引导的是同位语从句 用来进一步补充说明doubt的具体内容 如 someresearchersbelievethatthereisnodoubt acureforaidswillbefound 广东2005 a whichb thatc whatd whether b 考点2 itis that 构成强调句型 强调的是主语humanactivity 强调句型可强调主语 宾语或状语 如 itisnotwhoisrightbutwhatisright isofimportance 重庆2007 a whichb itc thatd this解析 将itis和that去掉后 此句成为notwhoisrightbutwhatisrightisofimportance 句子完整 故此题是一个强调句型 b idon tmindhercriticizingme but ishowshedoesitthatiobjectto 江西2007 a itb thatc thisd which解析 去掉itis和that后 本句相当于 butiobjecttohowshedoesit 是个完整的句子 故此句是it强调句型 被强调部分是宾语从句 a 4 phenomenonn 现象 奇迹 罕见的人才或事物eg 雨雪是天气现象 rainandsnowarephenomenaoftheweather eg 不应该简单地视未婚妈妈为一种社会现象 unmarriedmothersshouldnotberegardedsimply eg 贝多芬是音乐家中的天才 beethovenwas amongmusicians pl phenomena asasocialphenomenon aphenomenon 5 subscribeto1 同意 支持idon tsubscribetosuchviews 我不同意这样的观点 2 对 捐款manypeoplesubscribedliberallytotherelieffund 许多人为救灾基金慷慨解囊 3 在文件等下面 签名hesubscribedhisnametoapetition 他在请愿书上签名 4 订阅 书籍等 hesubscribedtoreader sdigest 他订阅 读者文摘 6 withoutthe greenhouseeffect theearthwouldbeaboutthirty threedegreescelsiuscoolerthanitis 如果没有温室效应 地球会比现在冷33 这是一个含蓄虚拟条件句 有时假设的情况并不以条件从句形式表示出来 而是通过一个介词短语或其他方式表示 常用的词或短语有 without butfor butthat otherwise or but等 e g withoutyourhelp ifwehadnothadyourhelp wecouldnothavesucceeded 要是没有你的帮助 我们是不会成功的 hefeltverytiredyesterday orhewouldhaveattendedtheparty 他昨天很累 不然他就参加那个聚会了 butforelectricity iftherewerenoelectricity therewouldbenomodernindustry 要是没有电 就不会有现代工业 hewashavingameetingwithhisstudents otherwisehewouldhavecome 他当时正与他的学生进行讨论 否则的话他就来帮我们了 7 quantityn 数量 量 alarge smallquantityof 不可数名词和可数名词复数 表示 大量的 少量的 也可以用 large smallquantitiesof 不可数名词或可数名词复数 来表达 用法归纳 aquantityof大量的quantitiesof大量的thereisasmallquantityofwaterleftinthebottle 瓶子里还剩下少量的水 shehasquantitiesofgoodclothes 她有许多好衣服 特别提示aquantityof后可接不可数名词或可数名词的复数形式 当它修饰名词作主语时 谓语动词用单数 而quantitiesof后同样可接不可数名词或可数名词的复数形式 但谓语用复数 amountsof 不可数名词充当句子的主语时 其谓语动词用复数 8 goup1 上升priceshavegoneupagain 物价又上涨了 2 被建造起来newfactoriesaregoingupeverywhere 到处在兴建新工厂 3 被焚毁thewholebuildingwentupinflames 整幢楼被焚毁了 9 itwasascientistcalledcharleskeelingwhomadeaccuratemeasurementsoftheamountofcarbondioxideintheatmospherefrom1957to1997 是一位名叫查尔斯 奎林的科学家把1957至1997年期间大气层中二氧化碳的含量作了精确的统计 解析 该句是一个强调句 amountof习惯用语 anamountof相当数量的 一些anyamount of 任何数量 的 大量 的 beoflittleamount不重要 无价值amountn 数量largeamountsofmoney大量的金钱inaninvoicetheamountofmoneyshouldbewrittenbothinwordsandinfigures 发票上的钱数要用字和数码写出来 10 resultin结果 致使 导致主语 in的宾语 起因 结果 actingbeforethinkingalwaysresults failure 做事不先考虑总会导致失败 theaccidentresulted thedeathoftwopeople 这场意外事故造成两人死亡 in in resultfrom起于 由于 由 引起主语 from的宾语 hissicknessresulted eatingtoomuch 起因 结果 from cause bringabout leadto cause表示的因果关系比较直接smokingcancauselungcancer mycarhascausedmealotoftrouble 2 bringabout表示的因果关系不那么直接thewarbroughtaboutareductioninthebirthrate 3 leadto相当于causethestrikecouldleadtoalossofjobs 11 ontheotherhand therearethose likegeorgehambley whoareopposedtothisview believethatweshouldnotworryabouthighlevelsofcarbondioxideintheair 在另一方面 还有一些人 对这一观点持反对态度 像科学家乔治 汉布利 他们认为我们不必担心空气中高含量的二氧化碳 分析 该句是一个主从复合句 主句为therearethose likescientistgeorgehambley作句子的插入语 who引导的定语从句修饰those 且在该定语从句中其谓语动词believe又带有that引导的宾语从句 句子的主要部分可以表示为 therearethosewhobelievethat ontheotherhand 另一方面i dliketoeatout butontheotherhandishouldbetryingtosavemoney iwanttogototheparty butontheotherhandioughttobestudying 我想去参加聚会 但从另一方面来说 我应该留下来学习 12 opposevt 反对 反抗如 iamopposedtogoingshoppingwithothers 我反对与他人一起外出购物 heisstronglyopposedtotheplan 他强烈反对这一计划 opposesth doingsth 反对某事 做某事beopposedtosth doingsth 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 opposedoingsth objecttodoingsth 反对做某事theyoungmanopposed objectedtoturningtohisparentsforhelp 这个年轻人反对向他的父母求助 易混辨析oppose 尤指采取行动 反对 反抗 某事 beopposedto一方面相当于beagainst 反对 另一方面相当于beoppositeto 相对 13 consequencen 结果 后果 影响 inconsequence因此asaconsequence结果asaconsequenceof由于 的结果 itrainedyesterdayandinconsequencethematchwascanceled hestudiedhard andinconsequencehepassedtheexam n 14 state that从句 wh 从句 他已公开声明他会支持那项政策 hehaspublicly forthepolicy statedhissupport 我听见那位官员说不接纳儿童 iheardtheofficialstatethattheywouldnotacceptchildren 合同清楚地叙述了那项工作应在何时完成 thecontractstatedwhentheworkshouldbefinished v 陈述 声明 n 状况 情况 国家 15 rangev 排列 使成行 偏袒 站在 的方面n 范围 尤指从 到 各种种类 可供选择的范围等 可加不定冠词 排列beyondtherangeof 超越 的范围outofone srange某人达不到的这家商店商品品种多 theshopkeeps 常可用于 1 被动结构2 rangeoneself 3 rangefrom to between and 从 到 不等 awiderangeofgoods 老师令其学生沿着小径排队 theteacher alongthepath 温度在15度到35度之间 thetemperature 我们应当列身于法律与秩序的一边 weshould onthesideoflawandorder rangedhisstudents rangesfrom15to35degrees rangeourselves 16 evenif though 即使 虽然hewillcomeontimeeventhoughitrains 即使下雨 他还是会准时来的 iwouldn ttellyouevenifiknew evenifshesurvives she llneverfullyrecover eventhoughhe s24now he sstilllikealittlechild icanstillremember eventhoughitwassolongago alargeq ofriceisbadlyneededhere 2 studentsarefromawider ofbackgrounds 3 shestudiedhard andinc shepassedtheexam 4 theparkattracts4millionvisitorsp year uantity ange onsequence er 根据句意及所给单词的首字母或汉语提示 写出各单词的正确形式 5 whatsortof 燃料 dothesemachinesneed 6 the 数据 isstillbeinganalysed sodon tbesoworried 7 theearthquakewasaterrible 大灾难 8 arainbowisanatural 现象 especiallyafteraheavyrain 10 the 曲线图 ofexportindicatesanewsuccessofthecompany graph fuel data catastrophe phenomenon ii 根据句意 选择适当的单词或短语填空1 climate weatherit sverydifficultforhertogetusedtothedryandcold there b howwewishthesunny couldkeepupforanotherseveraldays eabout comeacrossi venever anyonequitelikeherbefore b pleasetellmehowtheaccident iamstillinthedark climate weather comeacross cameabout 3 quantity qualitya muchofthelandwasofpoor b buyvegetablesinsmall foryourimmediateuse 4 resultin resultfromtheaccident thedeathofthreepeople b hisfailure notworkinghardenough quality quantities re