2019-2020年高中英語(yǔ)Unit4GlobalwarmingLearningaboutlanguage

1、2019-2020年高中英語(yǔ)Unit4GlobalwarmingLearningaboutlanguagePartOne:TeachingDesign(第一部分：教學(xué)設(shè)計(jì))Period2:AsamplelessonplanforLearningaboutLanguage(Theuseof“it”(2)AimsTodiscoverusefulwordsandexpressionsTodiscoverusefulstructuresProcedures1. WarmingupWarmingupbyreadingaloudTurntopage26andreadaloudtotherecordingo

2、fthetext.Warmingupbydiscoveringexamplesof“it”Helloclass!Weshallgooverthetextwelearnedyesterday.Thatis,readfor“it”inthetext.Circleallthose“it”whilereading.II. Learningabout“it”1. Quickdefinitionsof“it”(pron.)Asademonstrative,especiallyatthebeginningofasentence,pointingtothatwhichisabouttobestated,nam

3、ed,ormentioned,orreferringtothatwhichapparentorwellknown:IsawitwasJohn.(pron.)Asasubstanceforanynounoftheneutergender:Hereisthebook,takeithome.(pron.)Asasubstituteforsuchgeneraltermsas,thestateofaffairs,theconditionofthings,andthelike:howisitwiththesickman?(pron.)Asanindefinitenominativeforaimperson

4、alverb:Itssnowing.Itrainsoftenhere.(pron.)Asanindefiniteobjectaftersomeintransitiveverbs,orafterasubstantiveusedhumorouslyasaverb:tofootit(i.e.,towalk).(pron.)Theneuterpronounofthethirdperson,correspondingtothemasculinepronounheandthefeminineshe,andhavingthesameplural(they,theirortheirs,them).2. 代名詞

5、IT用法總結(jié)“IT”isasmalllittlewordinEnglish.Butitisveryuseful.好些無(wú)主語(yǔ)的句子，在譯成英文時(shí)都非請(qǐng)IT協(xié)助不可：是這樣！(Thatsit!) 沒辦法。(Itcantbehelped.) 輪到我了。(Itismyturn.) 離這兒不遠(yuǎn)。(Itisnotfarfromhere.) 只要一塊錢。(Itisonlyonedollar.) 這兒真熱。(Itissohothere!)此外，”it”還有下列五種用法：1) 代替上文提到的事物或情況，如：Lookupthewordinthedictionaryifitisdifficulttoyou.Iwou

6、ldappreciateitifyoucoulddomeafavour.2) 代替沒生命的東西，如：Hereisaplasticbox.Itisuseful.Dontthrowtheoldnewspaperaway;youmayneedit.3) 代替普通動(dòng)物，如：Thedogoutsidebelongstotheownerofthehouse.Itisveryfierce.Lookatthecat!Isntitfurry?注:指大動(dòng)物，如馬、大象等或指人們心愛的寵物，如貓、狗等時(shí)，可用“he”或“she”，而不用“it”；故事中的動(dòng)物便是個(gè)例子，如：Whenthechildrensawaho

7、rseing,theystoppedandlookedathim.Acowisgrazinggrassinthefield.Shelooksverystrong.4) 用來(lái)指天氣、日期、季節(jié)、時(shí)刻、距離等，如：Itisrainingoutside.Dontgoout!Itisthe20thofDecember.Timeflies!Itisvacationagain.ItwashalfpastfivewhenJasongotup.Itisveryfarfromtheschooltothemarket.Itisonlyashortdistancetothelibrary.5) 可以指性別不詳?shù)膵雰?/p>

8、，及已知的事實(shí)，如：Thebabynextdoorkeptmeawake.Itcriedloudly.Yes,Iwasathomelastnight.Whataboutit?Whenthepanyclosesdown,it(i.e.thisevent)willaffectsomestaffsfuture.6) 可以用來(lái)強(qiáng)調(diào)句子的某部分，如：IrespectDavid.Itishethathasmadethedepartmentwhatitisnow.(強(qiáng)調(diào)主語(yǔ))ItisMandarinthatJanethasfailedtopickup.(強(qiáng)調(diào)賓語(yǔ))Itisonlyrecentlythatsh

9、ehasembarkedonthelearningofMandarin.(強(qiáng)調(diào)副詞“recently)3.英語(yǔ)強(qiáng)調(diào)結(jié)構(gòu)英語(yǔ)中表示強(qiáng)調(diào)的結(jié)構(gòu)是“Itis(was)+被強(qiáng)調(diào)的部分+that(who)+句子的其它部分，除了謂語(yǔ)部分外，其余的可以用于強(qiáng)調(diào)句。需要注意的是當(dāng)強(qiáng)調(diào)的部分是時(shí)間狀語(yǔ)或地點(diǎn)狀語(yǔ)時(shí)，只能用that而不用when或where；當(dāng)被強(qiáng)調(diào)的部分是人時(shí)，可以用who；當(dāng)強(qiáng)調(diào)主語(yǔ)時(shí)要注意主語(yǔ)和謂語(yǔ)的一致。Itismyunclethat/whoisingtovisitus.Itwasatmidnightthathecamebackhome.Itwasintheparkthatthetwool

10、dfriendsranintoeachother.Itsnotyouwhoareintrouble;butitsIwhoamintrouble.ItwasnotuntiltheaccidenthappenedthatIbecameawareofmyownfoolishness.III. Closingup1.DoingvocabularyexercisesTurntopage28anddothevocabularyexercises1and2ingroupsoffour.Youmayjustdotheexercisesinthetextbook.Youdonotneedtocopytheque

11、stionsandanswersintoyourworkbook.2. DoinggrammarexercisesLetsgotopage29anddothegrammarexercises1and2againingroupsoffour.Youmayaswelldotheexercisesinthetextbook.Youdonotneedtocopythequestionsandanswersintoyourworkbook.2019-2020年高中英語(yǔ)Unit4GlobalwarmingReadingPartOne:TeachingDesign(第一部分：教學(xué)設(shè)計(jì))Period1:Asa

12、mplelessonplanforreading(THEEARTHISBEINGWARMERBUTDOESITMATTER?)AimsTolookandlistsourcesofenergyToreadaboutglobalwarmingProceduresI.WarmingupthinkaboutwhatmovestheWarmingupbydefiningHello,everyone.Todaywearegoingtoreadaboutglobalwarming.Butfirstletsworldaround.Yes,itisenergy.Butwhatisenergy?Renewable

13、energysourceslikewindpowerdontemitcarbondioxide.Energyisafundamentalquantitythateveryphysicalsystempossesses;itallowsustopredicthowmuchworkthesystemcouldbemadetodo,orhowmuchheatitcanproduceorabsorb.Inthepast,energywasdiscussedintermsofeasilyobservableeffectsithasonthepropertiesofobjectsorchangesinst

14、ateofvarioussystems.Basically,ifsomethingchanges,somesortofenergywasinvolvedinthatchange.WarmingupbyobservingEnergyissoimportant,butwheredoesitefrom?Therearedifferentformsofenergy:Lightenergy光能Heatenergy熱能Soundenergy聲能Chemicalenergysource化學(xué)能源Nuclearenergy核能Internalenergy內(nèi)能Kineticenergy動(dòng)能Potentialene

15、rgy勢(shì)能能源類型定義實(shí)例一次能源直接來(lái)自自然界而未經(jīng)加工轉(zhuǎn)換的能源化石燃料、太陽(yáng)能、核能、生物燃料、水能等二次能源由一次能源直接或間接轉(zhuǎn)化而來(lái)的能源電能、煤氣、汽油、沼氣、氫能等可再生能源不隨其本身的轉(zhuǎn)化或被人類利用而減少的能源太陽(yáng)能、生物能、水能、風(fēng)能、地?zé)崮艿确窃偕茉措S其本身的轉(zhuǎn)化或被人類利用而減少的能源化石燃料、核燃料等Energyismeasuredinjoules(J).Energycandowork.tercanbemadeWhenenergychangesfromoneformtoanother,theamountofenergystaysthesame.Energycann

16、otbemadeordestroyed.Thisfactiscalled“conservationofenergy”.Matintoenergythroughprocesseslikenuclearfissionandnuclearfusion.II. Pre-reading1.QuestioningandansweringHaveyoueverseenagreenhouse?Whatisit?Whatisitfor?LiHongju,couldyoutelltheclassinEnglishwhatyouknowaboutagreenhouse?Agreenhouseisbuiltofgla

17、sstobeusedforgrowingplants.Theairinsidethegreenhouseiswarmbecausetheglassletsinthesunandkeepsitfromrunningaway.Sotheairinsideiswarmandisgoodforgrowingplantsthroughoutthecoldseasons.2. TalkingandsharingNowlookatthewordGREENHOUSEGASES.Whatdoesitmean?Greenhousegases(GHG)aregaseousponentsoftheatmosphere

18、thatcontributetothegreenhouseeffect.Themajornaturalgreenhousegasesarewatervapor,whichcausesabout36-70%ofthegreenhouseeffectonEarth(notincludingclouds);carbondioxide,whichcausesbetween9-26%;andozone,whichcausesbetween3-7%(notethatitisnotreallypossibletoassertthatsuch-and-suchagascausesacertainpercent

19、ageoftheGHE,becausetheinfluencesofthevariousgasesarenotadditive.Thehigherendsoftherangesquotedareforthegasalone;thelowerend,forthegascountingoverlaps).Naturallyoccuringgreenhousegasesincludewatervapor,carbondioxide,methane,nitrousoxide,andozone.Certainhumanactivities,however,addtothelevelsofmostofth

20、esenaturallyoccurringgases.Verypowerfulgreenhousegasesthatarenotnaturallyoccurringincludehydrofluorocarbons(HFCs),perfluorocarbons(PFCs),andsulfurhexafluoride(SF6),whicharegeneratedinavarietyofindustrialprocesses.Eachgreenhousegasdiffersinitsabilitytoabsorbheatintheatmosphere.HFCsandPFCsarethemosthe

21、at-absorbent.III. ReadingReadingaloudtotherecordingNowpleaselistenandreadaloudtotherecordingofthetextTHEEARTHISBEINGWARMERBUTDOESITMATTER?Payattentiontothepronunciationofeachwordandthepauseswithineachsentence.Iwillplaythetapelltrweiacdealoaundtywoiuce,too.世界初級(jí)能源消耗能源石油煤可燃?xì)馑芎四馨俜贮c(diǎn)452620542.Readingandu

22、nderliningNextyouaretoreadandcirclealltheusefulexpressionsorcollocationsinthepassage.Copythemtoyournotebookafterschoolashomework.CollocationsfromTHEEARTHISBEINGWARMERBUTDOESITMATTER?duringthe20thcentury,riseabove.,sixtenthsofadegreeCelsius,soundmuchto.,arapidincrease,beparedto.,eabout,explorequestio

23、ns,thereisnodoubtthat.,beewarmer,fiercedebateover.,causeglobalwarming,anaturalphenomenon,causetheincreasein.,throughtheburningoffossilfuels,produceenergy,becalled.,smallamountsofgases,trapheatfromthesun,warmtheearth,beaboutthirty-threedegreesCelsiuscooler,add.to.,betrappedin.,cause.todosth.,goup,inc

24、reasegreatlyover.,makeaccuratemeasurementsof.,goupfrom.to.acceptthisdata,resultin.,differentattitudestowards.,overthenext100years,aslowas.,predict.wellenough,cause.todosth.,risebyseveralmeters,worryabout.,highlevelsof.,concernabut.,withfewbutbadenvironmentalconsequences,apositivething,growfaster,enc

25、ourageagreaterrangeof.,make.better,buildup,intheatmosphere,reducetheamountof.,keeponing3. ReadingaloudandtranslatingNextwearegoingtoreadaloudthetextandputitintoChinese.Wemaytranslateitwordforword,sentenceforsentence.Readingistheprocessofretrievingandprehendingsomeformofstoredinformationorideas.These

26、ideasareusuallysomesortofrepresentationoflanguage,assymbolstobeexaminedbysight,orbytouch(forexampleBraille).Othertypesofreadingmaynotbelanguage-based,suchasmusicnotationorpictograms.Byanalogy,inputerscience,readingisacquiringofdatafromsomesortofputerstorage.4. ReadingandtransforminginformationTounde

27、rstandthemainideaofthetext,wearegoingtoreaditonceagain.Writedownthekeysentenceofeachparagraphatthesametime.不同地區(qū)的平均每年消耗能源的數(shù)值（1996年,單位：GJ）中國(guó)香港美國(guó)英國(guó)日本非洲3310638618818716Keysentenceofeachparagraph:1.Adebateoverwhetheritishumanactivitythathascausedtheglobalwarmingorwhetheritisjustanaturalphenomenon.2.Manyscientistsbelievepeoplehavecausedtheincreaseintheearthstemperature.3. Theincreasedextraamountofcarbondioxidetrapsmoreheatenergycausingtheglobaltemperaturetogoup.4. Thelevelsofcarbondioxidehaveincreasedgreatlyoverthelast100to150years.5. Therearesomedifferentattitudestowardsthecau