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

1/84Unit4

GlobalwarmingReading高二人教新课标版选修六2/84Pre-reading3/844/845/841.Haveyoueverseenagreenhouse?ismadeofglassusedforgrowingplants,especiallyduringcoldweather.6/842.Howdoesthegreenhousework?7/84Theairinsidewaswarmbecausetheglasstraps(挡住,吸收)theheatfromthesunandkeepsitfromescaping(逃跑).

Thismakesthegreenhouseheat

up(热量上升)

andsotheplantscangrowthroughout(在…期间)thecoldperiod.8/843.WhatareGreenhouse

Gases?Methane4Ozone51Carbondioxide2Watervapor

11Nitrousoxide39/844.GreenhouseEffect

GlobalwarmingGreenhousegasestrappedtheheatfromthesun,whichcausesthetemperatureofearthgoesup.10/84Greenhouse

effect11/84Greenhouseeffect12/84GreenhouseGlobalwarmingAretheyallbeneficial?？13/84THEEARTHISBECOMINGWARMERBUTDOESITMATTER?Reading14/84

1)Howmanyparagraphsdoesthereading

2)Makeadivisionofthetext.Readthepassagequickly(3’)textconsistof?Pleasenumberthem.Fast-Reading15/84Mainideasofeachpart:Part1(1)Introduceadebateovertheissueofglobalwarming.raisingaquestionPart2(2-5)Howglobalwarmingcomesabout.giving

examples,usinggraphs,explanation

16/84Part3(6)Listtwodifferentattitudesamongscientiststowardsglobalwarming.Part3(7)It'suptoreaderstothinkanddecidewhetherpeopleshoulddosomethingaboutglobalwarmingornot.givingexamples,makingcontrastleavingaquestion17/84Aretheriskstoogreat?Socanyoupredictthefutureoftheglobalwarming?18/84

Whowritesthisarticle?SophieArmstrongofEarthCareWhatroseabout

onedegreeFahrenheit?ThetemperatureoftheearthCarefulreadingPart1(1)Introductionofglobalwarming.19/842.___________________________1.___________________Part2(2-5)How

globalwarmingcomesabout?theburningoffossilfuels

humanactivityCarbon

dioxideMethaneWhataretheGreenhousegases?1.2.3.Water

vapor

20/84Part3(6-7)Whataretheeffectsofglobalwarming?ariseinthesealevelSeverestorms,droughts,famines,thespreadofdiseases,andthedisappearanceofspeciesMakeplantsgrowfastereffects21/84Readandanswerthequestions.1.Whowrotethemagazinearticle?Whatisthenameofthemagazine?2.Whatarethenamesofthethreescientistsmentionedinthearticle?1.SophieArmstrong,EarthCare.2.DrJaniceFoster,CharlesKeeling,GeorgeHambley.22/843.Whatdothethreescientiststhinkaboutglobalwarming?believesitistheburningofmoreandmorefossilfuelsthatisresultinginabigincreaseincarbondioxide.Dr.JaniceFosterGeorge

HambleyCharles

Keelingthinkstheeffectsofglobalmwarmingcouldbeveryserious(严重).thinks

global

warming

willbemildwithfewbadenvironmentalconsequences.23/84ThedifferentideasbetweenDr.JaniceFoster&GeorgeHambleyDr.JaniceFoster

GeorgeHambleyCarbondioxidehascausedtheglobaltemperatureto__________.Anincreaseoffivedegreeswouldbea___________andcouldbe_____________.Morecarbondioxideisa__________thing,whichmakescrops__________moreandwillencourage______________________________.go

upcatastrophevery

seriouspositiveproduceagreaterrangeofanimals24/844.Whatarethetwographsabout?ThefirstgraphshowsthetemperatureincreaseofonedegreeFahrenheitbetween1860to.Thesecondgraphshowsthecarbondioxidecontentintheatmospherefrom1957to1997.25/84fromaround315partspermilliontoaround370partspermillionHugequantitiesofextracarbondioxideFrom1957to19975.Whatisthemaintopicofthearticle?Globalwarming/thewarmingoftheearth.26/841.Whofoundouttheamountofcarbondioxideintheatmospherefrom1957to1977?A.Dr.JaniceFoster.B.CharlesKeeling.C.GeorgeHambley.D.SophieArmstrong.BChoosethebestanswer.27/842.WhichofthefollowingisDrJaniceFoster’sopinion?A.Theresultofthetemperatureincreasewillbeserious.B.Theamountofwarmingisnothingserious.C.Weneedn’tworryabouthighlevelsofcarbondioxide.D.Globalwarmingisanaturalphenomenon.A28/843.WhichofthefollowingisTRUEaccordingtothetext?A.ThetemperatureoftheearthincreasedaboutonedegreeFahrenheitduringthe20thcentury.B.Thecarbondioxidecontentintheairincreasedby70partspermillionfrom1957to1997.C.Allscientistsacceptthedataingraph2exceptCharlesKeeling.D.JaniceFostersaysthatmorecarbondioxidewillmakeplantsgrowfaster.A29/844.Theauthorprobablyagreesthat________

A.actuallyglobalwarmingisgoodforman.

B.weshoulddonothingabouttheglobalwarming.

C.catastropheswillhappeniftheglobekeepsonwarming.

D.alotremainstobefoundoutabouttheeffectsofglobalwarming.D30/84Trueorfalse?1.Thetemperatureinthelastcenturydidnotseemtoincreasemuch.2.Everyonebelievesthatglobalwarmingiscausedbytheactivitiesofhumans.3.JaniceFosterbelievesthatshecanmeasurethefutureglobalriseintemperature.TTF31/844.Theriseincarbondioxideiscausingasteadyincreaseinglobalwarming.5.GeorgeHambleybelievesthatglobalwarmingwilldogoodratherthanharmtotheearth.6.Itisclearwhattheeffectsofglobalwarmingwillbe.TTF32/84SummaryTrytotalkingeneraltermsratherthanindetails.e.g:Ilearntthattheearthisbecomingwarmer.Ilearntthatglobalwarmingcouldhaveterribleeffectsontheenvironment.

…33/84A

:Weshalldosomethingaboutglobalwarming.B:Weshalldonothingaboutglobalwarming.Debate34/84Whatweshoulddotoprotectourearth?Discussion:35/841.Reducetheburningoffossilfuels2.Planttrees3.Usebagsthatcanberecycled…36/84Itisarapidincreasewhencomparedtoothernaturalchanges.comparevt.1)比较;对照

compare…with…表示“把…与…相比(同类相比)”如：Compareyouranswerswiththoseatthebackofthebooktoseeiftheyareright.

把你答案同书后面答案对照一下,看看是否正确。Languagepoints

37/842)喻为;比拟compare…to…

表示“把…比做…(异类相比,比喻)”如：

Man’slifeisoftencompareddoacandle.人生常被比为蜡烛。Myhandwritingcannotbecompared

withmyfather’s.我书法不能与我父亲相比。38/84Shakespearecomparedtheworldtoastage.莎士比亚把人世比做舞台。知识拓展comparedto/with与……相比,普通在句子中作状语。Comparedto/withmanywomen,shewasindeedveryfortunate.39/84comeabout:

发生,造成,相当于happen你能告诉我事情是怎么发生吗？Canyoutellmehowtheaccidentcame伴随电使用,种种大改变发生了。Withtheuseofelectricity,greatchangeshavecomeabout.comeout

出现;传开;公开come

up

发生、举行;出现2.Sohowhasthiscomeaboutanddoesitmatter?40/84comeabout是不及物短语。如：1)Pleasetellmehowtheaccident___.Iamstillinthedark.(江西)A.camebyB.cameoutC.cametoD.cameaboutD41/842)It’salready10o’clock.Iwonderhowit____thatshewastwohourslateonsuchashorttrip.(湖北)A.cameover B.cameoutC.cameabout D.cameup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。comeover来访comeout出来,出版comeup出现C42/843.Thereisnodoubtthat….doubt

1)作不可数名词,作“疑惑;怀疑”①必定句中doubt多接whether(普通不用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。whetherwhether43/84②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。Ihavenodoubt______youwillsucceed.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。thatthat44/84①用于否定句或疑问句,后接that引导宾语从句。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?②用于必定句,普通接whether或if引导宾语从句。如:Idoubt__________wewillmakeaprofitoutofit.我认为我们不可能从此事中赢利。Wedoubt__________shewillbepersuaded.我们不知道她会不会被说服。

whether/ifwhether/ifthatthat45/84[考点1]Thereisnodoubtthat...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：Someresearchersbelievethatthereisnodoubt___acureforAIDSwillbefound.(广东)A.whichB.that C.what D.whetherB46/84[考点2]itis...that...组成强调句型,强调是主语humanactivity。强调句型可强调主语、宾语或状语。如：Itisnotwhoisrightbutwhatisright____isofimportance.(重庆)A.whichB.it C.that D.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。B47/84Idon’tmindhercriticizingme,but______ishowshedoesitthatIobjectto.(江西)A.it B.that C.this D.which解析:去掉itis和that后,本句相当于...,butIobjecttohowshedoesit,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。A48/844.phenomenon

n.现象;奇迹;罕见人才或事物eg:雨雪是天气现象。Rainandsnowarephenomenaoftheweather.eg:不应该简单地视未婚妈妈为一个社会现象。Unmarriedmothersshouldnotberegardedsimply_____________________.eg:贝多芬是音乐家中天才。Beethovenwas_______________amongmusicians.pl.phenomena

asasocialphenomenonaphenomenon49/845.subscribeto1)同意;支持

Idon’tsubscribetosuchviews.

我不一样意这么观点。2)对...捐款

Manypeoplesubscribedliberallytotherelieffund.

许多人为救灾基金慷慨解囊。50/843)(在文件等下面)署名Hesubscribedhisnametoapetition.他在请愿书上署名。4)订阅(书籍等)HesubscribedtoReader’sDigest.他订阅《读者文摘》。51/846.Withoutthe‘greenhouseeffect’,theearthwouldbeaboutthirty-threedegreesCelsiuscoolerthanitis.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,butfor,butthat,otherwise,or,but等。52/84e.g.Withoutyourhelp(=Ifwehadnothadyourhelp),wecouldnothavesucceeded．要是没有你帮助,我们是不会成功。Hefeltverytiredyesterday,orhewouldhaveattendedtheparty．他昨天很累,不然他就参加那个聚会了。53/84Butforelectricity(=Iftherewerenoelectricity),therewouldbenomodemindustry．要是没有电,就不会有当代工业。Hewashavingameetingwithhisstudents,otherwise

hewouldhavecome.他当初正与他学生进行讨论,不然话他就来帮我们了。

54/847.quantity

n.数量;量“alarge/smallquantityof+不可数名词和可数名词复数”表示“大量/少许…”,也能够用“large/smallquantitiesof+不可数名词或可数名词复数”来表示。使用方法归纳:aquantityof

大量quantitiesof

大量Thereisasmallquantityofwaterleftinthebottle.瓶子里还剩下少许水。Shehasquantitiesofgoodclothes.她有许多好衣服。55/84尤其提醒aquantityof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quantitiesof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。amountsof+不可数名词充当句子主语时,其谓语动词用复数。56/848.goup

1)上升

Priceshavegoneupagain.

物价又上涨了。2)被建造起来

Newfactoriesaregoingupeverywhere.

处处于兴建新工厂。3)被焚毁

Thewholebuildingwentupinflames.

整幢楼被焚毁了。

57/849.ItwasascientistcalledCharlesKeelingwho

madeaccuratemeasurementsoftheamount

ofcarbondioxideintheatmospherefrom1957to1997.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。58/84amountof习惯用语:anamountof相当数量;一些anyamount(of)任何数量();大量()beoflittleamount不主要;无价值amountn.数量

largeamountsofmoney大量金钱Inaninvoicetheamountofmoney

shouldbewrittenbothinwordsandinfigures.发票上钱数要用字和数码写出来。59/8410.resultin

结果;致使;造成主语:in宾语:起因结果Actingbeforethinkingalwaysresults______failure.做事不先考虑总会造成失败。Theaccidentresulted___thedeathoftwopeople.这场意外事故造成两人死亡。inin60/84result

from

起于,因为,由…引发主语：from宾语：Hissicknessresulted______eatingtoomuch.

起因结果from61/84cause\bringabout\leadtocause

表示因果关系比较直接Smokingcancauselungcancer.Mycarhascausedmealotoftrouble.2)bringabout

表示因果关系不那么直接Thewarbroughtaboutareductioninthebirthrate.3)leadto相当于causeThestrikecouldleadtoalossofjobs.62/8411.Ontheotherhand,therearethose,likeGeorgeHambley,whoareopposedtothisview,believethatweshouldnotworryabouthighlevelsofcarbondioxideintheair.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therearethose,likescientistGeorgeHambley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:...therearethosewhobelievethat...64/84ontheotherhand:

另首先I’dliketoeatout,butontheother

handIshouldbetryingtosavemoney.Iwanttogototheparty,butontheotherhandIoughttobestudying.我想去参加聚会,但从另首先来说,我应该留下来学习。65/8412.oppose

vt.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。66/84opposedoingsth.=objecttodoingsth.

反对做某事Theyoungmanopposed/objectedtoturningtohisparentsforhelp.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)beopposedto首先相当于beagainst“反对”;另首先相当于beoppositeto“相对”。67/8413.consequencen.结果,后果,影响inconsequence所以asaconsequence结果asaconsequenceof因为…结果Itrainedyesterdayandinconsequencethematchwascanceled.Hestudiedhard,andinconsequencehepassedtheexam.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。Hehaspublicly_________________forthepolicy.statedhissupport我听见那位官员说不接纳儿童。Iheardtheofficialstate

thattheywouldnotacceptchildren.合同清楚地叙述了那项工作应在何时完成。Thecontractstated

whentheworkshouldbefinished.v.陈说,申明；n.情况,情况;国家；69/8415.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beyondtherangeof…超越……范围outofone’srange某人达不到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awiderangeofgoods70/84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__________________________.我们应该列身于法律与秩序一边。Weshould__________________onthesideoflawandorder.rangedhisstudentsrangesfrom15to35degreesrangeourselves71/8416.evenif/though:

即使;即使Hewillcomeontimeeventhoughitrains.即使下雨,他还是会按时来。

Iwouldn’ttellyouevenifIknew.Evenifshesurvives,she’llneverfullyrecover.Eventhoughhe’s24now,he’sstilllikealittlechild.Icanstillremember,eventhoughitwassolongago.72/84Alargeq______ofriceisbadlyneededhere.2.Studentsarefromawider_____ofbackgrounds.3.Shestudiedhard,andinc___________shepassedtheexam.4.Theparkattracts4millionvisitorsp___year.uantityangeonsequenceer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。73/845.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.graphfueldatacatastrophephenomenon74/84II.依据句意,选择适当单词或短语填空1.climate;weatherIt’sverydifficultforhertogetusedtothedryandcold_______there.b.Howwewishthesunny_______couldkeepupforanotherseveraldays!2.comeabout;comeacrossI’venever___________anyonequitelikeherbefore.b.Pleasetellmehowtheaccident__________.Iamstillinthedark.climateweathercomeacrosscameabout75/843.quantity;quality

a.Muchofthelandwasofpoor______.b.Buyvegetablesinsmall__________,foryourimmediateuse.4.resultin;resultfromTheaccident___________thedeathofthreepeople.b.Hisfailure______________notworkinghar