新视野大学英语第三版第四册第七单元SectionA课件.ppt

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1、FOREIGHLANGUAGETEACHINGANDRESEARCHPRESSAIRFORCEENGINEERINGUNIVERTISY4ThecomingenergycrisesUnit7SectionA47UNITEnergyandFoodCrisesWecancreateamoresustainable,cleanerandsaferworldbymakingwiserenergychoices.—RobertAlanSilverstein(Americanauthor,artist,socialactivis

2、t)WhenwritteninChinese,theword“crisis”iscomposedoftwocharacters.Onerepresentsdangerandtheotherrepresentsopportunity.—JohnF.Kennedy(35thUSpresident)SectionA47UNITThecomingenergycrisisEnergyandFoodCrisesTotalkaboutenergycrisisTofurtherunderstandthetextToapplythep

3、hrasesandpatternsTomastertheessaywritingskillObjectivesContentsWarming-upActivitiesTextStudyLanguageApplicationSummaryThecomingenergycrisesASectionWarming-upActivitiesLead-inPre-readingActivitiesCulturalBackgroundASectionThecomingenergycrises1.Whatformofenergyd

4、othesefacilitiesbelongto?Renewableenergyisclassifiedasenergythatcomesfromresourceslikesunlight(knownassolar),wind,geothermalheatandrainthatareconstantlyreplenished.Renewableenergycanserveasareplacementtoelectricity,motorfuels,ruralenergyandheating.2.Whatarethea

5、dvantagesofrenewableenergy?sustainable,willneverrunoutminimalimpactontheenvironmenteconomicbenefitsstabilizeenergyprices…1.Howenergy-consciousareyou?Withconstantwarningsaboutclimatechangeandthedepletionofnaturalresources,manypeoplebecomeawarethattheyneedtolivea

6、greenlifestyle.Whataboutyou?Haveyouadoptedaneco-friendlylifestyle,orareyoujustpayinglipservicetotheidea?Completethefollowingquestionnaireandfindouthowenergy-consciousyouare.AlwaysSometimesNever1.Doyouswitchoffthelightwhenyou’rethelasttoleavearoom?2.Doyoucloseth

7、edoortokeepheatinsidethehouseinwinter?3.Doyouturnofftheair-conditionerandopenthewindowstolettheaircooldownyourhousewhenthere’swindoutside?4.Doyouusepublictransportationorcar-poolwhengoingtoschoolorworkwheneverpossible?AlwaysSometimesNever5.DoyouswitchofftheTV,c

8、omputerorstereoratherthanleavethemonwhenyouarenotusingthem?6.Doyoucheckwhetherithasagoodenergy-savingratingwhenbuyinganewapplianceorelectricalequipment?7.Doyouwaituntilyouha