新编英语教程5Unit3教案.docx
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新编英语教程5Unit3教案.docx
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新编英语教程5Unit3教案
UnitThree
TEXT1
THENIGHTMARELIFEWITHOUTFUEL
IsaacAsimov
Objectives:
toidentifytheexamplesineachpara.bytellingthecentralideaofit.
toworkoutAsimov’swayinarrangingallhisdetails.
totellorallyandinwrittenformtheimportanceofenergyresource:
thefunctions,thenightmarelifewithoutit,andthemeasurestobetakentoavoidsuchnightmarelife.
Sectionone
Pre-readingQuestions(10mins.)
1.Whatarethefuelsthatcanbeusedinourlife?
Somefuelsareindispensabletocitylife:
coal,gas,petroleum.
Somefuelsareindispensabletocountrylife:
wood,naturalgas,kerosene,petroleum.
2.WhatfuelresourcesisChinarichin?
coal,oil,wood.
3.Supposetheworldhadrunoutoffuel,whatwouldhappentoourlife?
Whatsortof‘nightmarelife’doyouthinkAsimovdescribesinthistext?
TextAnalysis:
catchtheexamplesandthecentralmeaningofeachparagraph.(110mins.)
Para.1---lackofmeansoftransportforgoingtowork(whywalktowork?
)(comp.2-1)
1.‘Soit’s1997’.Whenwasthisarticlewritten?
Itwaswrittenin1977.Theyear1997isthefutureyearAsimovdescribesinhisprediction.Nowit’s1997,andwecanseeifthereisanytruthinAsimov’sprediction20yearsago.
2.Whatdothewords“slosh”and‘slide’suggestaboutthetriptoworkbybikeonthatrainyday?
(Comp.3-1)
Thetripisunpleasantanddifficultbecauseofthemuddyandslipperyroad.
AsimovstartswithwhatseemstobethemostessentialthingtotheAmericans-thecar.(Org.&Devl.)
3.Whataretheexamples?
Thesubways/bartsarecrowded;manytrains/oneoutoffivetrainsbreakdown(stopbecauseofamechanicalfault);thebusesaregone;thebicyclessloshandslide(flounderorsplashaboutinslushormud)
Para.2---lackofrawmaterialsandalternativesourceofenergy
e.g.Constructionmaterialsgotfromfadingstructures(oldbuildings);enoughcoaldifficulttoget;nuclearenergydangerous;solarenergyexpensive.
1.WhydoesAsimovuse‘fading’and‘decaying’todescribe‘structures’and‘city’respectively?
or,explainthemeaningsofthesewords.(comp.3-2)
fading-losingcolorandbrightness;disappearinggradually
fadingstructuressuggeststhatthebuildingsareinbadrepairandbecomefewerandfewerinnumber.
decaying-declininginprosperity,wastingaway
decayingcitysuggeststhatthecitylacksvitalitytotheextentofcollapsing.
Togethertheyhelptocreateableakpictureofthecity.
2.HowdoyouunderstandThefadingstructuresofadecayingcityarethegreatmineralminesandhardwareshopsofthenation?
Breakthemdownandreusetheparts.
Whentheoldbuildingsarepulleddown,thevariouspartssuchasthosereinforcingbars,tubes,etc.canberecycled.Sothefadingstructuresseemstobethegreatmineralminesandhardwareshopswherethematerialsofthiskindcanbefound.
3.Whatisthejobindemolition(=destruction,leveling)?
Whyisitsteadyaccordingtotheauthor?
(comp.2-2)
thejobinvolvedwithdestroyingoldbuildings.
becausemanyoldbuildingshavetobepulleddownsothattheirvariouspartscanberecycled.
4.Coalistoodifficultto...;nuclearfissionis...;thetechnicalbreakthroughtowardnuclearfusion...;andsolarbatteriesare....
Coalistime-consuming,effort-consuming,andenergy-consumingindiggingupandtransportation.
Nuclearfissionisdangerousbecauseitproducesradioactiverayswhichareharmfultopeoplebycontaminatingland,water,andair.
Nuclearfusiondidoccurbecausewehavehadhydrogenbombs,butwecan’tutilizetheenergyproducedbynuclearfusioninourlifeuptillnow.
Solarenergycan’tbe100%utilizedtoproduceelectricity,sosolarbatteriesareexpensive.
5.HowdoesAsimovkeepthefirsttwoparas.coherent?
walktowork(para.1)-jobindemolition(para.2)-jobinvolvingthere-useofrawmaterialsandenergyresources-lackofrawmaterialsandenergyresources
Para.3---thedisappearanceofautomobilesbecauseoftheshortageofgasoline
howtherearenomorecarsrunninginthestreetsin1997(comp.2-3)
1.Whatdoesfilthyrichmean?
2.Whatisrationed?
Whatdoesthe‘sacrifice’referto?
Thegas/gasolineisrationedbecauseofitsshortage.‘Sacrifice’referstothosewhocan’taffordthegastokeeptheircarsmoving.
3.Describehowtheautomobilesvanish.(comp.3-3)
Automobilesdwindledbecauseoftherisingpriceofgas.Thenonlytherichcouldaffordtokeeptheircars.Thisenragedtheordinarypeople.Thengaswasrationed.Therationwasgraduallydecreased.Finallyallcarsdisappeared.
4.IsittrueinAmericaandinChina?
Carsarenotdiminishinginthestates,butitistruethatAmericanpeoplenowshowlessinterestinmanufacturingautomobiles,becausetheybelievethefutureneediscomputersandinternet/infohighway,fromwhichpeoplecandoalmosteverything,shopping,visiting,havingmeetings,communicating,watchingmovies,etc.Theywillbeseldominneedofcarstocarrythemeverywhere.
InChina,moreandmorepeoplearepurchasingcars,forowningaprivatecaristhesymbolofbecomingwealthy.
Para.4---someadvantagesoffuellesslife/world
1.Accordingtotheauthor,thefuelcrisisof1997hassomeadvantages.Whatarethey?
(comp.3-4)Why?
lesspollution(Theairiscleaner)andfewerdiseases,moresecurityandlowercrimerate,morehealthywayoflife(peoplewalkallthetime),closerhumanrelationships(mutualprotectionincrowds).
2.RephraseWiththepolicecartooexpensive(andtooeasyatarget),policemenarebackontheirbeats.Legsarekinginthecitiesof1997,andpeoplewalkeverywherefarintothenight.
Policecarsaretoocostly(andareverylikelytobecomevictimsofassault),sopolicemenwalkaboutdesignatedroutestoperformtheirpatroldutyasbefore.
Intheyear1997,walkingformsthemostimportantmeansoftransportationinthecitiesand,fromearlyinthemorningtilllateatnight,peopletravelhereandthere,backandforth,allonfoot.
Para.5---whatresultsfromtheshortageofelectricity(andfuels)
e.g.noheating,noair-conditioning,nomorehotshowers,lesslighting
1.What’sthemeaningofwithmostofwhatfurnacefuelisallowedhoardedforthedawn?
2.Howdoyouinterpretlukewarmspongebathswilldo.andiftheairisnotalwaysveryfragrantinthehumanvicinity,theautomobilesfumesare0gone.(comp.3-5)
Whatpeoplecanhaveareonlylukewarmspongebathsinsteadofshowers,soiftheairisfulloftheunpleasantsmellcomingfromhumanperspirationbecauseoffewerbaths,youcansmelltheautofumes.
Thepleasantsmellintheaircomesfromhumanperspirationratherthanfromthetoxicvaporofcarsaspeoplecannolongeraffordtohaveashowereverydaybutcanonlycleantheirbodieswithasponge.
Notetheunderstatementinthesentence.
3.Whataretheconsequencesofthescarcityofelectricityandfuels?
noair-consforheatingandcooling,stayinginthedarkaftersupper,nottoburnthefurnaceallnighttokeepwarm,putonsweatersevenindoorsinwinter,nottotakeshowerseverydaybutonlylukewarmspongebathssonotfragrantsmellintheairelicitedfromhumanbodiesbecauseoffewershowers.
Para.6---themoredisastrousconditionsinthesuburbsbecausethescarcityoffuels,say,gasolineandelectricity
e.g.thediminishingofcarssopeoplehavetoformshoppingpools,andtousepushcarts.shortageofelectricitysonotenoughtohoardforthewholewinter,andnotenoughforthedogstoeatinwinter
1.What’sthefunctionoftheword‘that’inthefirstsentence?
(comp.3-6)
Introducinganadverbialclauseexpressingreason.
2.ParaphraseThereissomeconsolationinthecitythatitisworseinthesuburbs.
Citypeoplefeelsomewhatcomfortedbythethoughtthatpeopleinthesuburbssufferevenmore(fromtheenergyshortage).
3.ExplainthemeaningofthesentenceThesuburbswerebornwiththeauto,livedwiththeauto,andaredyingwiththeauto?
(comp.3-7)
Thecarmadeitpossibleforthecitytosprawloutanddevelopitssuburbs;themobilitythecarprovidedmadeitpossibleforpeopletoliveinthesuburbs;withthedisappearanceofthecar,theonce-prosperoussuburbsaredeclining.
Para.7.---scarceenergyresourcesshouldbepriorlydistributedtotransportandagriculture,nottopersonalcomfort,andthereasons(comp.2-4)
e.g.Thenationasawholemustsurvive.Therailroadsmovingthecoalwhichistheimmediatehope,andthesubwaysmovingthepeopleshouldreceivemajorattention;energymustbeconservedforagricultureinordertoproducemorefood,tomaintainsufficientfoodsupply,oreventoexchangesomeoilwithfood.Asforthepersonalcomfort,peoplecanhuddletogetherwhencold,fanourselveswhencool,sleepormakeloveatnightwhenthereisnoelectricity.
Para.8---starvationintherestoftheworld(comp.2-5)
1.WhatmakesAmericansfeelthattheyareluckierthanpeopleelsewhereintheworld?
(comp.3-8)
WhileAmericansareforcedtoeatless,peopleintherestoftheworldaresimplystarving.
2.ParaphraseSomecynicssaythatitistheknowledgeofthisthathelpskeepAmericanfromdespair.(LW6-4)
Americanpeopleknowwellthattheyareluckytohaveenoughfoodsupply-Americaisoneofthebiggestagriculturalexportersintheworld-sothattheydonotloseanyhope.
Accordingtosomecynics,thereasonwhyAmericanshavenotyetlosthopeisthattheyevenunderstandthatthesituationintherestoftheworldisevenmorediscouraging.
3.ParaphraseAllthestatisticspointtorapidlydecliningrateofpopulationincrease,butthatiscomingaboutchieflythroughahighinfantmortality.
Therapidlydecliningrateofpop
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