unit4theearthisbecomingwarmer市公开课一等奖省赛课微课金奖课件

Theearthisbecomingwarmer-butdoesitmatter?1/38FastReadingGlancequicklyatthemagazinearticleandanswerthequestions.2/38SophieArmstrongwrotethemagazinearticle.Thenameofthemagazineis“Earthcare”.2.Whatarethenamesofthethreescientistsmentionedinthearticle?TheyareDr.JaniceFoster,CharlesKeelingandGeorgeHambley.1.Whowrotethemagazinearticle?Whatisthenameofthemagazine?3/383.Whatdotheythinkaboutglobalwarming?Dotheyagreewithoneanother?Theydon’tagreewitheachother.Somethinktheeffectswillbeterrible,whilesomeothersbelievethatweshouldnotworryaboutit.Dr.JaniceFosterthinkstheeffectsofglobalwarmingcouldbeveryserious.GeorgeHambleythinksglobalwarmingwillbemildwithfewbadenvironmentalconsequences.4/38Construction

Part1(1)Introduceadebateovertheissueofglobalwarming.Mainideaofeachpart5/38Part2(2-5)Howglobalwarmingcomesabout.Part3(6)Listtwodifferentattitudesamongscientiststowardsglobalwarming.Part4(7)It’suptoreaderstothinkanddecidewhetherpeopleshoulddosomethingaboutglobalwarmingornot.6/38

compare…to也可用compare…with用于比较不一样事物.Theirpricesarelowcomparedtothoseinothershops.使用方法比较:

compareAwithB把……和……相比。ResearcherscomparedlivingconditionsinLondonwiththoseinothercities.

compareAtoB把……比成……，比较二者相同之处。Poetsliketocomparedeathtosleep.compare7/381)Thetownhaschangedalot________________whatitwasbefore.2)Weoften_________youngpeople_____therisingsun.3)________this____that,andyou’llseewhichisbetter.comparedto/withcomparetoCompare

with8/38Sohowhasthiscomeaboutanddoesitmatter?comeabout出现，发生Whathascomeabout?发生了什么事？常见词组：comeacross偶然遇见comebacktolife复活cometo恢复知觉；总共，总计comeon快，走吧；加油comeout显露；出版，发行comeintobeing形成，出现comeround恢复知觉；醒过来comealong出现；进步，comeback回来，（旧事）在记忆中出现comeupwith提出，想出（计划等）comethrough经历……依然活着，安全度过

9/38注意以下表示发生单词和短语均不能用被动语态：takeplace多指预料中或按计划要发生breakout多指战争，火灾，瘟疫等发生occur可指偶然发生，也可指按计划发生happen指偶然发生，惯用于sth.happens(todo)结构It'salready10o'olock.Iwonderhowit__thatshewastwohourslateonsuchashorttrip.A.cameoverB.cameoutC.cameaboutD.cameup10/381.Thereisnodoubtthattheearthisbecomingwarmerbutthereisfiercedebateoverwhetheritishumanactivitythathascausedthisglobalwarmingorwhetheritisjustanaturalphenomenon.毫无疑问地球在变暖，但终究是人类活动使地球变暖还是它仅仅是一个自然现象，就此引发了激烈争论。“Thereisnodoubt…butthereisfiercedebate”是主句，是一个并列句；“Thereisnodoubt”分句中“that…”是同位语从句，“butthereisfiercedebate”分句中有两个由whether

引导宾语从句。作介词over宾语，第一个宾语从句中又有一个强调句型.11/38惯用结构：Thereisnoneed…没有必要…Thereisnoquestion…是没有问题…Thereisnoreason…没有理由…Thereisnopossibilitythat…是没有可能…Thereisnoknowing/telling…没法知道/说…Itisa/nowonderthat…真奇怪/真令人吃惊…Itisnouse/goodthat…Itisnouse/gooddoingsth…12/38ThereissomedoubtwhetherJohnwillcomeontime.约翰会不会按时来有些疑问。她说了实话，这一点似乎是没有疑问。Thereseemstobenodoubt

thatshehastoldthetruth.13/38____wasno____thathewasafinescholar.A.There;doubtB.It;doubtC.There;wonderD.It;question2.____noknowingwhathecoulddo.Hemightgetajobtomorrow.Hemightstayoutofworkforweeks.A.ThereisB.ItisC.TherewasD.Itwas14/38randomadj.随意,胡乱,随机

randomly

atrandom任意地随便地phenomenon(sing.)phenomena(pl.)

thephenomenaofnature自然现象

asocialphenomenon社会现象15/38

Subscribe1.VERB同意;赞成Ifyousubscribetoanopinionorbelief,youareoneofanumberofpeoplewhohavethisopinionorbelief.I'vepersonallyneversubscribedtotheviewthateithersexissuperiortotheother.我个人从来都不一样意性别有优劣之分观点。2.VERB订阅，订购(杂志或报纸)Ifyousubscribetoamagazineoranewspaper,youpaytoreceivecopiesofitregularly.16/38MymainreasonforsubscribingtoNewScientististokeepabreastofadvancesinscience.

我订阅《新科学家》主要是为了了解科学最新进展。3.VERB定时资助;定时捐款;定时捐助Ifyousubscribetoacharityoracampaign,yousendmoneytoitregularly.Isubscribetoafewfavouritecharities.我定时向几个中意慈善机构捐款。单词扩展：subscriber订阅人subscription订阅费;订购17/38Thisiswhensmallamountsofgasesintheatmosphere,likecarbondioxide,methaneandwatervapour,trapheatfromthesunandthereforewarmtheearth.

这是当空气中少许气体像二氧化碳、甲烷和水蒸气将太阳热量保留住而散发不出去时，所以就使地球变暖。when引导表语从句18/38quantityn.(u)数量Heprefersquantitytoqualitywhenfoodisconcerned.词义拓展：quantityn.(c)数量Policefoundalargequantityofillegaldrugs.Quantitiesofbookswereonthedesk.Para219/38quantitiesof

大量既能够修饰可数名词，又能够修饰不可数名词。Quantitiesofappleswereonthetable.桌子上有很多苹果。HugequantitiesofoilwereshippedtoJapanlastyear.去年大量石油被海运到日本。联想拓展inquantity/inlargequantities大量insmallquantities少许20/38易混辨析：aquantityof/quantitiesof同：都可译为“大量”，都既可修饰可数名词又可修饰不可数名词异：aquantityof谓语动词依据其后名词而定，跟可数名词复数时谓语动词用复数，跟不可数名词时谓语动词用单数。quantitiesof后不论跟可数名词还是不可数名词，谓语动词一律用复数。Alargequantityofairconditionershavebeensoldsincethesummercame.入夏以来，已经有大量空调售出。21/38Asaresultofdestroyingtheforest,alarge___ofdesert____coveredtheland.number;hasB.quantity;hasC.number;haveD.quantity;have2)Everydaylargequantitiesofwater___intoriverswithoutbeingcleaned.ispouredB.ispouringC.arepouredD.arepouring22/38Itmeansthatmoreheatenergytendstobetrappedintheatmospherecausingtheglobaltempertauretogoup.

causing现在分词短语置于句尾，通常和句子隔开，作结果状语。现在分词作结果状语时，表示正常结果Hisfatherdied,leavinghimalotofmoneyandabigcompany.不定式短语也能够置于句尾，有时前面加only,在句子中作结果状语，但往往表示出乎意料之外或事与愿违结果.比如：Hehurriedtothestation,onlytofindthatthtrainhadleftalready.23/38tend1.VERB往往会；经常就Ifsomethingtendstohappen,itusuallyhappensoritoftenhappens.Theytendtobuycheapprocessedfoodslikecannedchickenandmacaroni.他们往往会买廉价加工食品，像鸡肉罐头和通心粉之类。2.VERB倾向于，轻易表现出(某种特征)Ifyoutendtowardsaparticularcharacteristic,youoftendisplaythatcharacteristic.Artisticandintellectualpeopletendtowardsleft-wingviews.搞艺术人和知识分子轻易持“左倾”观点。24/383.VERB护理;照料;照看Ifyoutendsomeoneorsomething,youdowhatisnecessarytokeeptheminagoodconditionortoimprovetheircondition.

Foryearshetendedherinherpainfulillness...多年来她一直受到病痛折磨，都是他在照料。5.VERB照料;照管;伺候Ifyoutendtosomeoneorsomething,youpayattentiontothemanddealwiththeirproblemsandneeds.Inourculture,girlsarebroughtuptotendtotheneedsofothers...在我们文化里，女孩从小就学着照料他人。25/38goup

1)（价格，数量等）上涨，增加；（水平）提升

Priceshavegoneupagain.

2)(楼房)建造起来，（标牌）装上去

Newbuildingsaregoingupeverywhere.

3)爆炸；烧毁

Thewholebuildingwentupinflames.

词组：

goaround传输，传扬goby消失；经过

godown下降；下沉；坠落；降价

goinfor参加（考试）；应试

goover视察；查看，查阅；复习

gothrough经历；遭受26/3827/3828/38Ontheotherhand,therearethose,likescientistsGeorgeHambley,whobelievethatweshouldnotworryabouthighlevelsofcarbondioxideintheairandthatsomescientists’concernsaboutglobalwarmingarejustspeculation.另首先，有些科学家，如GeorgeHambley，认为我们不应该为空气中二氧化碳含量高担心，他们还认为一些科学家对地球变暖担心只是一些猜测。主句是“therearethose”,“likescientistsGeorgeHambley”是介词短语作定语，“whobelievethat…”arejustspeculation”是非限制性定语从句，都修饰those;believe后有两个宾语从句，都由that引导。ontheotherhand,介词短语作状语从句，修饰全句。29/3830/3831/38mildadj.1)温和,温柔Heisthemildestmanalive.他是世上最和善人了。2)温暖,暖和It'sbeenamildwinterthisyear.今年冬天一直很暖和。3)味淡,不浓烈Pleasemakemydrinkamildone.请把我酒调得淡一点。4)轻微,不重;宽大Hewasgivenamildpunishment.他被从轻发落。32/38state-statementThewitnessstatedthatshehadneverseenMr.Smith陈说;申明;说明Iceisthesolidstateofwater.形态Inchina,therailwayareownedbythestate.国家,政府Thereare50statesinAmerica.州Everythingwasinastateofdisorder.状态Thepresidenthasmadeanimportantstatementaboutthematter.申明33/38stat