新视野大学英语第三版第四册Unit7-SectionB.pptx

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1、SectionB47UNITAworldwidefoodcrisis?TomasterthereadingskillTounderstandthetextTopracticethephrasesandpatternsTolearnaboutarticlewritingObjectivesEnergyandFoodCrisesWarming-upReadingSkillsTextStudyComparativeStudyContentsUnitProjectBSectionAworldwidefoodcrisis

2、?3Warming-upLead-inBackgroundInformationBSectionAworldwidefoodcrisis?VideoWatching1.Whatcanwefindaboutthefoodfromthevideo?TipsTips2.Whatpoliticswillbecarriedoutforthefoodcrisis?5BackTheworldfoodpricessoaredby6percentbecauseofunfavorableweatherconditions.Thef

3、oodharvestsisdowninmanycountries.Morepeoplearegoingtobedhungry.Afoodcrisisislooming.…Tips1.Whatcanwefindaboutthefoodfromthevideo?7Providehelptotheneedy.Treasureandeconomizeonfood.Forbidbiofuelsproducedbyfood.…2.Whatshouldwedotomeetthefoodcrisis?Tips81.Whatha

4、ppenedinthe2007-2008worldfoodpricecrisis?2.Whatwasthemainreasonofthe2007-2008worldfoodpricecrisis?TipsTips9Worldfoodpricesincreaseddramaticallyin2007andinthefirstandsecondquartersof2008,creatingaglobalcrisisandcausingpoliticalandeconomicalinstabilityandsocia

5、lunrestinbothdevelopinganddevelopednations.1.Whathappenedinthe2007-2008worldfoodpricecrisis?Tips102.Whatwasthemainreasonofthe2007-2008worldfoodpricecrisis?TipsInitialcausesofthe2007-2008pricespikesincludeddroughtsingrain-producingnationsandrisingoilprices.Oi

6、lpriceincreasesalsocausedgeneralescalationsinthecostsoffertilizers,foodtransportation,andindustrialagriculture.Rootcausesmaybetheincreasinguseofbiofuelsindevelopedcountriesandanincreasingdemandforamorevarieddietacrosstheexpandingmiddle-classpopulationsofAsia

7、.Allofthesefactors,coupledwithfallingworldfoodstockpiles,contributedtotheworldwideriseoffoodprices.11ReadingSkillsPresentationoftheSkillReadingSkillPracticeBSectionAworldwidefoodcrisis?12Asweknow,everyauthorwritesforapurpose.Therearethreecommonpurposesofwrit

8、ing:toinform–toprovidethereaderwithinformationaboutatopic;topersuade–toconvincethereadertobelieveacertainviewpointortotakeacertaincourseofaction;toentertain–toamusethereaderinsomeway.Identifying