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1、英语必修5外研版Module4方案一精品教案（6）TheSixthPeriod:EverydayEnglish&WritingTeachingaims1.TomastersomeeverydayEnglish2.TolearnhowtowriteanemailTeachingprocedure:Step1.RevisionStep2.EverydayEnglish:Step3.ReadingandwritingActivity1:Readthee-mailandnumberthesethingsintheorderActi
2、vity2:Underlinetheadjectivesusedtodescribe:1.theatmosphere2.themusic3.thefoodActivity3:WriteareportforyourschoolnewspaperaboutthecarnivalyouorganizedtocelebrateChineseNewYear,including:lWhenandwherethecarnivalhappenedlthedecorationslthemusiclthecostumeslthefoodlth
3、eatmospherelspecialcustoms(在文中尽量使用句型，如：倒装句、强调句、名词性从句)Step4.Homework:Previewculturalcorner【巩固作业设计】阅读下列四篇短文，从每小题后所给的A,B,C或D四个选项中，选出最佳选项。Riversmaybeasignificantsourceofthegreenhousegasnitrousoxide(一氧化二氮),scientistsnowfind.Theircalculationsuggeststhatacrosstheglobethe
4、waterwayscontributethreetimestheamountofnitrousoxidetotheatmosphereashadbeenestimatedbytheInternationalPanelonClimateChange(IPCC),theUnitedNationsscientificbodychargedwithreviewingclimatechangeresearch.Theyfoundthattheamountofnitrousoxideproducedinstreamsisrelated
5、tohumanactivitiesthatreleasenitrogen(氮)intotheenvironment,suchasfertilizeruseandsewagedischarges.“Humanactivities,includingfossilfuelcombustionandintensiveagriculture,haveincreasedtheavailabilityofnitrogenintheenvironment,”saidJakeBeaulieuoftheUniversityofNotreDam
6、eandtheU.S.EnvironmentalProtectionAgencyinCincinnati,Ohio,andleadauthorofthepaperpublishedthisweekinthejournalProceedingsoftheNationalAcademyofSciences.“Muchofthisnitrogenistransportedintoriverandstreamnetworks,”Beaulieusaid.There,microbes(微生物)convertthenitrogenin
7、tonitrousoxide(alsocalledlaughinggas)andaninertgascalleddinitrogen(二氮).Thefindingisimportant,theresearcherssay,becausenitrousoxideisapowerfulgreenhousegasthatcontributestoclimatechangeanddestructionofthestratosphere’sozonelayer,whichprotectsusfromthesun’sharmfulul
8、traviolet(紫外线)radiation.Comparedwithcarbondioxide,nitrousoxideis300-foldmorepowerfulintermsofitswarmingpotential,thoughcarbondioxideisafarmorecommongree
