秋季課程人教版高二英語選修六unit4-Global-warming-教案

適用學(xué)科高中英語適用年級高二適用區(qū)域人教新課標版課時時長（分鐘）2課時知識點1單詞學(xué)習(xí)及辨析2“it”的用法(2)3句型學(xué)習(xí)教學(xué)目標1.掌握本單元重點詞匯的基本含義與用法；2.鍛煉提升寫作能力。教學(xué)重點1.重點的詞匯與句型；2.書面表達的書寫思路。教學(xué)難點如何準確地運用重要詞匯和句型進行表達教學(xué)過程教學(xué)過程一、導(dǎo)入一、導(dǎo)入教學(xué)建議：導(dǎo)入有很多種方法，一般控制在十分鐘左右為宜，可以采用各種形式，比如：教學(xué)建議：導(dǎo)入有很多種方法，一般控制在十分鐘左右為宜，可以采用各種形式，比如：1、直接導(dǎo)入法。2、復(fù)習(xí)以往知識：可以從已學(xué)、已知的入手，與今天的教學(xué)進行對比。3、課前小測：可以針對學(xué)生學(xué)校里近期講授的內(nèi)容進行出題（以簡單題和中檔題為主，以10分鐘左右為宜）進行測驗，也可以針對基礎(chǔ)知識進行復(fù)習(xí)提問，檢查學(xué)生學(xué)校所學(xué)內(nèi)容的掌握程度，進而展開教學(xué)。4、以近年來發(fā)生的重大事件為題導(dǎo)入。既考查了學(xué)生從社會生活中獲取信息的能力，又激發(fā)了學(xué)生的學(xué)習(xí)興趣，讓學(xué)生馬上進入學(xué)習(xí)狀態(tài)等。以上的導(dǎo)入方法只是建議，大家選擇其中一種或兩種進行交叉使用即可。復(fù)習(xí)預(yù)習(xí)：1、上節(jié)課作業(yè)訂正。2、it可以幫助構(gòu)成強調(diào)句、陳述句的強調(diào)句型：______________________________________________需要注意的地方：*It在這一結(jié)構(gòu)中作主句的主語，所以即使被強調(diào)部分是復(fù)數(shù)名詞，也要用___或____

*如果被強調(diào)部分是時間、地點、方式或原因依然用_____；強調(diào)人時可以用____或__2)、一般疑問句的強調(diào)句型：______________________________________3)、特殊疑問句的強調(diào)句型：_______________________________________二、知識講解二、知識講解知識點知識點1重點單詞1eq\x(quantityn.數(shù)量；量)inquantity大量quantitiesof＋名詞＋復(fù)數(shù)謂語動詞許多……aquantityof＋復(fù)數(shù)名詞＋復(fù)數(shù)謂語動詞/＋不可數(shù)名詞＋單數(shù)謂語動詞大量……QuantitiesoffoodandtentsweresenttoYa’anfromShandong.大量的食品和帳篷從山東運到了雅安。Mybrotherboughtalargequantityofbooks.我弟弟買了大量的書。2eq\x(tendvi.趨向；易于(belikelytodo)；照顧；vt.照顧；護理(carefor))tendtodo...傾向于做……；往往會……tendsb.照顧某人haveatendencytodosth.有做某事的傾向Thenurseskillfullytendedsoldiers’wounds.護士熟練地護理著那些士兵的傷口。3eq\x(opposevt.反對；反抗；與(某人)較量(todisagreewith))opposeAagainst/toB使A與B相對抗opposedoingsth.反對做某事beopposedto反對asopposedto與……相對照；而非Thekingcouldn’tbearanyonetoopposehim.國王不能忍受任何人反抗他。Thefatherisopposedtohisson’smarriage.爸爸反對兒子的婚事。4eq\x(statevt.陳述；說明；n.狀態(tài)；情況)Itisstatedthat...據(jù)稱……asstatedabove如上所述ina...state處于……狀態(tài)makeastatement陳述；發(fā)表聲明ForthefirstfewmonthsafterDanieldied，Iwasinastateofclinicaldepression.丹尼爾去世后的最初幾個月里，我一直處于臨床抑郁癥的狀態(tài)。Hestatedthatheknewnothingabouttheaccident.他聲稱對那起事故一無所知。5rangen．批；組；范圍；山脈；v.變動，變化；排列；涉及beyond/outofone’srange/therangeofsb.超出某人的范圍within/intherangeof在……范圍之內(nèi)rangefrom...to...從……到……之間變化rangebetween...and...在……到……之間變動Awiderangeofcolorsandpatternsareavailable.各種顏色和樣式都有。Shehashadanumberofdifferentjobs，rangingfromcheftoswimminginstructor.她做過許多不同的工作，從廚師到游泳教練。圖解助記6averageadj.平均的；普通的(normal)；典型的(typical)；n.平均數(shù)；平均水平；v.平均為；計算出……的平均數(shù)(beequalto...asanaverageanaverageof...……的平均數(shù)uptotheaverage達到平均水準above/belowaverage高于/低于平均水平on(the/an)average平均地；通常；按平均值Taketheaverageofthoseratiosandmultiplybyahundred.算出那些比率的平均值再乘以100。Americansharesrose，onaverage，by38%.美國股票價格平均上漲了38%。7eq\x(advocatevt.擁護；提倡；主張；n.支持者；擁護者；提倡者)Itisadvocatedthat...主張，提倡……advocatedoing...主張做……anadvocateof/for支持……的人Hewasastrongadvocateoffreemarketpoliciesandthemultipartysystem.他是自由市場政策和多黨派制度的堅決擁護者。Mr.Williamsisaconservativewhoadvocatesfewergovernmentcontrolsonbusiness.威廉斯先生是個保守派，主張政府應(yīng)減少對商業(yè)的控制。特別提醒advocate后不跟不定式，跟從句時，從句中用虛擬語氣(should)do。8eq\x(circumstancen.環(huán)境；情況)in/undernocircumstances決不(＝never)，in/underthecircumstances在這種情況下；既然這樣in/underanycircumstances在任何情況下ifcircumstancesallow/permit如果情況允許Thestrategywastoodangerousintheexplosivecircumstancesofthetime.在當(dāng)時那種一觸即發(fā)的形勢下，采取那樣的策略太危險了。Iwishwecouldhavemetunderhappiercircumstances.我真希望我們是在更愉快的情況下相識的。本單元單詞詞性變化歸納1.agreev.同意disagreev.不同意agreement/disagreementn.同意/不同意2.existv.存在existencen.存在3.statev.陳述，說明statementn.聲明，闡述4.environmentn.環(huán)境environmentaladj.周圍的，環(huán)境的environmentalistn.環(huán)境保護主義者知識點2知識點2重點短語1eq\x(comeabout發(fā)生(happen)；造成)Itcomesaboutthat...……發(fā)生。Howdoesitcomeaboutthat...？……是怎樣發(fā)生的？comeacross偶遇；被理解whenitcomesto...當(dāng)談到……comeupwith想出(主意)；找到(答案)Asaresultofcarelessness，theprojectcollapsecameaboutinthelastspring.去年春天，由于疏忽大意造成了工程的坍塌。ThatcameaboutwhenwewenttoGlastonburylastyear.那是我們?nèi)ツ耆ジ窭诡D伯里的時候發(fā)生的事。特別提醒comeabout相當(dāng)于happen或occur，均無被動形式。2eq\x(subscribeto同意；贊成；訂購；捐助)subscribeforsth.認購……subscriber(雜志等)訂購者，訂閱者；(手機、電話等)用戶；捐助者，資助者Areyougoingtosubscribetotheoperathisseason?你要訂購這一季的歌劇票嗎？Thesubscriberyoudialedispoweredoff.您撥打的用戶已關(guān)機。3eq\x(onbehalfof(＝onone’sbehalf)代表……一方；作為……的代言人)I’mcallingonbehalfofMr.Black.我是代布萊克先生打電話來的。Iapologizetoyouonbehalfofthehotel.我謹代表旅館向你們道歉。知識點3知識點3重點句子ItisOKtoleaveanelectricalapplianceonsolongasyouareusingit—ifnot，turnitoff！只要你在使用電器設(shè)備，你便可以把它開著。如果不用就把它關(guān)掉！eq\x(句型公式：solongas引導(dǎo)條件狀語從句)solongas(aslongas)只要，引導(dǎo)條件狀語從句。aslongas還可譯為“長達，和……一樣長久”。，asfaras遠至；就……來說aswellas和……一樣好；不但assoonas一……就……Inourlifewemaymeetmanyfailures，aslongaswetryourbest，there’snoneedtofeelregretforthesefailures.生活中我們可能遇到許多失敗，但只要我們盡了力，就沒有必要為失敗而后悔。知識點4知識點4語法突破it的用法(2)It用于強調(diào)句型中1．Itis/was＋被強調(diào)部分＋that/who＋其他，這個句型可以強調(diào)主語、賓語、介詞短語及狀語。ImetTomintheparkyesterday.→ItwasintheparkthatImetTomyesterday.2．強調(diào)句的特殊疑問句句型為：特殊疑問詞＋is/wasitthat/who＋陳述句Whatdidyouwanttofindyesterday?→Whatwasitthatyouwantedtofindyesterday?3．強調(diào)句與名詞性從句的結(jié)合Iwanttoknowwhatyouwantedtofindyesterday.→Iwanttoknowwhatitwasthatyouwantedtofindyesterday.4．Itis/wasnotuntil＋被強調(diào)部分＋that...Ididn'trealizeshewasafamousfilmstaruntilshetookoffherdarkglasses.→ItwasnotuntilshetookoffherglassesthatIrealizedshewasafamousfilmstar.It常用的固定搭配1．makeit(1)在口語中相當(dāng)于succeed，表示“成功做到；及時到達”等。(2)在口語中相當(dāng)于fixthedatefor，表示“約定好時間”。Nomatterhowharditis，Iwillmakeitoneday.2．Takeiteasy.口語中相當(dāng)于“Don'tworry.”或“Don'thurry.”，用來勸告別人，表示“不要慌、沉住氣、別擔(dān)心”。2·1·c·n·j·yTakeiteasy!Hewilldoitwell!3．Italldepends./Thatalldepends.口語中相當(dāng)于“Ithasn'tbeendecidedyet.”表示“那得看情況，還未定下來?！敝?華-21世紀1－Areyougoingtothecountrysideforaholiday?－Italldepends.4．It'suptosb.口語中，相當(dāng)于“It'sdecidedbysb.”表示“由……決定/由……負責(zé)/取決于……”。－Shallwegooutfordinner?－It'suptoyou.三、例題精析三、例題精析教學(xué)建議說明：此處內(nèi)容主要用于教師課堂的精講，每個題目結(jié)合試題本身、答案和解析部分。教學(xué)建議說明：此處內(nèi)容主要用于教師課堂的精講，每個題目結(jié)合試題本身、答案和解析部分。例題1例題1【題干】Michael’snewhouseislikeahugepalace，______withhisoldone. A．comparing B．compares C．tocompare D．compared【答案】D【解析】考查非謂語動詞。compare的邏輯主語是句子的主語Michael’snewhouse，且二者之間為動賓關(guān)系，所以應(yīng)該用過去分詞作狀語。例題2例題2【題干】Becauseofthesnowhedrovejust280kilometersin5hours，sothe______speedwas56kmph.A．basic B．Whole C．Total D．a(chǎn)verage【答案】D【解析】average“平均的”。句意：由于大雪，他5小時才開車走了280公里，因此平均速度是每小時56公里。例題3例題3【題干】______theyouth______therisingsunateightornineo’clocka．m.，MaoZedongexpressedhisgreathopefortheyoungmen.A．Comparing；with B．Compared；toC．Compared；with D．Comparing；to【答案】D【解析】compareAtoB“把……比作……”，用現(xiàn)在分詞作狀語，因為主語MaoZedong與compare之間是主動關(guān)系。例題4例題4【題干】______foodarestoredinthetunnelinwinter.A．Largequantitiesof B．AgreatmanyC．Alargenumberof D．Quiteafew【答案】A【解析】largequantitiesof后面既可接可數(shù)名詞復(fù)數(shù)，又可接不可數(shù)名詞；其余三項均接可數(shù)名詞復(fù)數(shù)。四、課堂運用四、課堂運用教學(xué)建議說明：在對課堂知識講解完，把握了重點突破了難點以及練習(xí)精講了之后，再用練習(xí)進行課堂鞏固教學(xué)建議說明：在對課堂知識講解完，把握了重點突破了難點以及練習(xí)精講了之后，再用練習(xí)進行課堂鞏固或檢測，根據(jù)學(xué)生情況建議分3個難度層次：易，中，難?；A(chǔ)基礎(chǔ)根據(jù)句子結(jié)構(gòu)，用括號內(nèi)所提供詞的適當(dāng)形式填空1)The________pointedoutthatthechangeof________willcausecertaingreat________disaster.(environment)2)Itwas______thatthenew-electedpresidentofU.S.Amadea________announcingnewpoliciestoreducetheconsequenceofeconomycrisis.(state)3)ThoughthetwoPartyusually_______witheachother，theyhavereachedan________onthelevelsofgreenhousegasestheywillallow.(agree)4)Inthesurvey，peoplefounditfunnythatmanyofthelongest-lastingmarriagesin______arethosebetweenpeoplewho________infrequentquarrel.(exist)【答案】1)environmentalist；environment；environmental2)stated；statement3)disagree；agreement4)existence；exist鞏固鞏固根據(jù)課文內(nèi)容完成下面語法填空，注意單詞拼寫和詞語用法：When1(compare)withmostnaturalchanges，thatthetemperatureoftheearthroseaboutonedegreeFahrenheitduringthe20thcenturyisquiteshocking.Andit’shumanactivity2hascausedthis3(全球的)warmingrather4arandombutnatural5（現(xiàn)象）.DrJaniceFosterexplainsthatweaddhuge6ofextracarbondioxidetotheatmospherebyburningfossilfuels.Fromthesecond7（圖表）andthediscoveryofCharlesKeeling，allscientistsbelievethattheburningofmoreandmorefossilfuelshasresulted8theincreaseincarbondioxide.Greenhousegasescontinuetobuildup.Somethinkthatthetrendwouldbea9(災(zāi)難).Ontheotherhand，GeorgeHambley10(聲明)thatmorecarbondioxidewouldencourageagreaterrangeofanimalsandbringusabetterlife.【答案】1.compared2.that 3.global 4.rather 5.phenomenon 6.quantities7.graph 8.in 9.catastrophe 10.states拔高拔高句子仿寫1.【原句】Thereisnodoubtthattheearthisbecomingwarmerandthatitishumanactivitythathascausedthisglobalwarmingratherthanarandombutnaturalphenomenon.毫無疑問，地球是在變暖，而地球變暖正是人類活動導(dǎo)致而成，并非是一種無規(guī)律的自然現(xiàn)象。[模仿要點]句子結(jié)構(gòu)：thereisnodoubtthat…andthat…句式+itis…that強調(diào)句【模仿1】毫無疑問，圣誕節(jié)的慶?；顒邮且粋€很好的學(xué)習(xí)方式的西方文化；而且慶祝圣誕節(jié)，讓我們的生活更有趣。_______________________________________________________________________________答案：ThereisnodoubtthatthecelebrationofChristmasisagoodwayoflearningthewesterncultureandthatitisthecelebrationofChristmasthatmakesourlifemoreinteresting.【模仿2】毫無疑問，太多的電腦游戲會對學(xué)生的健康有不良影響，而且玩電腦太多花費他們太多的時間導(dǎo)致花在學(xué)習(xí)上的時間太少。_______________________________________________________________________________答案：Thereisnodoubtthattoomanycomputergamescanhaveabadeffectonstudents’healthandthatitisplayingtoomuchcomputerthatcoststhemtoomuchtimeresultingintoolittletimeonstudy.2．【原句】Somebyproductsofthisprocessarecalled“greenhouse”gases，themostimportantoneofwhichiscarbondioxide.這個升溫過程的一些副產(chǎn)品就叫做“溫室”氣體，其中最重要的是二氧化碳。[模仿要點]句子結(jié)構(gòu)：主句，+themost+adj.of+which引導(dǎo)的定語從句【模仿1】一些可能的措施應(yīng)采取以防止我們的地球越來越熱，而其中最重要的措施之一是限制私家車的使用。_______________________________________________________________________________答案：Somepossibleactionsshouldbetakentokeepourearthfromgettingwarm，themostimportantoneofwhichistolimitstheuseofprivatecars.【模仿2】一些良好的學(xué)習(xí)方法應(yīng)采取以改善你的學(xué)習(xí)，而其中最有效的方法之一是與你的同學(xué)討論。_______________________________________________________________________________答案：Somegoodlearningmethodsshouldbeadoptedtoimproveyourstudy，themosteffectiveoneofwhichistodiscusswithyourclassmates.3.【原句】Theyalsoagreethatitistheburningofmoreandmorefossilfuelsthathasresultedinthisincreaseincarbondioxide.他們還贊同正是由于越來越多燃燒化石燃料導(dǎo)致了二氧化碳的增加。[模仿要點]句子結(jié)構(gòu)：賓語從句中的強調(diào)句【模仿1】文章表明是人類的活動對村莊造成的環(huán)境破壞。_______________________________________________________________________________答案：Thepassageindicatesthatitishuman’sactivitiesthathasresultedintheenvironmentaldestructiontothevillage.【模仿2】我們都同意的是年輕一代應(yīng)該負起振興國家的責(zé)任。_______________________________________________________________________________答案：Weallagreethatitistheyoungergenerationthatshouldtakeuptheresponsibilitytobuildupthecountry.課堂小結(jié)課堂小結(jié)教學(xué)建議說明：教師對本節(jié)課應(yīng)掌握的知識作一個小結(jié)，將本堂課應(yīng)掌握的內(nèi)容做一個概要陳述。教學(xué)建議說明：教師對本節(jié)課應(yīng)掌握的知識作一個小結(jié)，將本堂課應(yīng)掌握的內(nèi)容做一個概要陳述。課后作業(yè)教學(xué)建議說明：講解完本章的知識點，布置課后作業(yè)，讓學(xué)生鞏固知識，建議也分三個層次，每個層次3-5題。課后作業(yè)教學(xué)建議說明：講解完本章的知識點，布置課后作業(yè)，讓學(xué)生鞏固知識，建議也分三個層次，每個層次3-5題?；A(chǔ)基礎(chǔ)語境填空1．Somecommon______(phenomenon)intheworldarestillnotcompletelyunderstoodbyhumanbeings.2．Thereare______(quantity)ofgoodsinthatshopforcustomerstochoosefrom.3．Hehadbeenillforalongtimeandconsequently(consequence)hewasbehindinhiswork.4．Sherefusedtomakea______(state)tothepoliceincasesheincriminated(連累)herself.5．Herpostasageneralmanager______(steady)afterthreemonths.6．Someexpertsthoughtthatpollutionposesathreattothecontinued______(exist)ofthisspecies.7．Withthedevelopmentofeconomy，now______(electricity)applianceshaveenteredintoordinaryfamilies.8．There’salotof______(disagree)amongpoliticiansonthisissue.9．Nocountrycanaffordtoneglectthe______(educate)ofitsyoungpeople.10．Theycontributedalotoffoodandclothingtotherefugees(難民)andtheir______(contribute)willcertainlyhelptherefugeeslivethroughthewinter.【答案】1．phenomena2．quantities3．consequently4．statement5．steadied6．existence7．electrical8．disagreement9．education10.contributions選詞填空eq\x(comeaboutgouponbehalfofputupwithsolongas)1．Thepriceofoilhas______byover50percentinlessthanayear.2．______alltheguestshere，Iwishtothankyouforgivingusthiswarmreception.3．Wewanttoknowhowit_____thathumansspeaksomanydifferentlanguages.4．“Iwillnot______yourbadbehaviouranylonger.”saidthegirlangrily.5．Idon’tcareabouttheprice，_____thecarisingoodcondition.【答案】1．goneup2．Onbehalfof3．cameabout4．putupwith5．solongas鞏固鞏固1．______isnodoubtthattheearthisbecomingwarmerbutthereisafiercedebateoverwhetheritishumanactivitythathascausedthisglobalwarming2.______whetheritisjustanaturalphenomenon.ManyscientistslikeDr.JaniceFosterbelievethatpeoplehavecaused3______increaseintheearth’stemperaturebyburningfossilfuelslikecoal，naturalgasandoiltoproduceenergywhosebyproducts4.______(call)“greenhouse”gases，themostimportantone5.______(be)carbondioxide.Thesegasestrapheatfromthesunandthereforewarmtheearth，without6.______theearthwouldbeaboutthirtythreedegreesCelsiuscooler7.______itis.But8.______(increase)amountofextracarbondioxidemeanst