高一英语外研版教案：ModuleSandstormsinAsiaPeriod6

学必求其心得，业必贵于专精学必求其心得，业必贵于专精学必求其心得，业必贵于专精Module4SandstormsinAsiaPeriod6Task＆Modulefile&Reading(page87)eq\o(\s\up7(），\s\do5（整体设计))教学内容分析作为本模块的最后一部分，本部分主要帮助学生复习本模块所学的内容。模块文档展示了主要的语言点,这是一个可以培养学生自我反思和总结学习策略的很好方法.在本部分将为不同水平的学生提供不同的练习。任务主要在于鼓励学生谈论保护环境的重要性以及如何保护环境。练习册87页的阅读活动是本模块的泛读材料，目的在于进一步培养学生的阅读能力。在这节课，为了帮助学生把握文章的主题思想以及细节方面的信息，应当向学生介绍一些阅读策略。三维目标设计Knowledgeandskills1．Tohelpthestudentsrevisethefollowingwordsandexpressions.Words：（见Modulefile)Expressions：（见Modulefile)2．Tocultivatethestudents’learningstrategiesofself­reflectionandsummary。Processandmethods1．Toencouragethestudentstotakeanactivepartinthelearningactivitiesbygivingthemclearinstructionsonwhattodowhilereadinganewpassage.Inaddition，correctpossiblemistakestheymightmakeinaproperwaybymakingnecessarychangeswhilerepeatingtheirsentences。2．Toencouragethestudentstocooperatewiththeothersbyworkinginpairsoringroupsoffour。3．Tomakesurethatthestudentspayattentiontotheimportantpointsofthismodule。4．Toencouragestudentstoevaluatetheeffectoftheirownlearningbysummarisingtheeffectivelearningmethods。Emotion，attitudeandvalue1．Tohelpthestudentsenlargetheknowledgeaboutdesertification。2．Tohelpthestudentsappreciatetheadvantageofcooperativelearning.教学重点1．Todisplaythemoduletaskandguidethestudentstocarryontheevaluationandsummary.2．Tohelpthestudentslearnhowtowriteanarticleaboutoneenvironmentalproblem。教学难点1．Tohelpthestudentslearntoorganisetheirownsentencestodescribeoneenvironmentalproblem。2．Tocarryoutaccurateevaluationwhiledealingwiththestudents'sentencestheymaketoexpresstheirideasinclass。eq\o（\s\up7()，\s\do5(教学过程)）Step1Prepareapresentationondesertification【15min。】1．WorkingroupsAskthestudentstomakealistofthesandstormaccordingtotheinformationthey'vegotfrommagazinesorTVprogrammes.2．Askstudentstodiscusstheitemsintheirlistwithothermembersoftheirgroup。PhenomenaReasonsSuggestions。。.3。PresentationPresentthecontenttotherestoftheclassbasedontheirdiscussions。Step2Modulefile【20min。】1．Givethestudents10minutestogothroughthemodulefile，tickingthethingstheyknowabout，makingaquestionmarknexttothosethingstheyarenotsureof，andacrossnexttothosetheydon’tknow。2．Haveadictationofthewordsandphrasesofthismodule.3．Reviewthegrammarrules：1)Theinfinitive2）But＋infinitiveExercise:Puttheverbsinbracketsintothecorrectinfinitiveforms。a．Shehasnochoicebut______（sleep）．b．Tomdidnothingbut______(watchTV）ANSWERSa.tosleepb.watchTV4．Finally,reviewFunctionandEverydayEnglish.AskthestudentstotalkaboutwhattheylearnedintheFunctionandEverydayEnglish.Step3Reading(page87)【8min。】1．Readthearticleandfindouttheanswerstothefollowingquestions。1)WhatwastheDustBowlandwhendidithappen？2)Whatpartsoftheworldareaffectedbydesertification？Askthestudentstoreadthroughthetextquicklyandsilently。Givethemthesuggestionthattheyshouldfocusonthegeneralideaandalsoonthedetailedmeaning。Makesuretheydon’treadthetextaloud。ANSWERS1）Itwasaduststorminthe1930sintheUSA。2）Manyregionsoftheworldarebeingaffected；ChinaandAfricaaretwoexamples.2．Readthearticleagainandanswerthefollowingquestions。1）Whatcausedthedisaster？2)Howdoesourgovernmentdotofightagainstthedesertification?3）WhataretheconditionsinAfrica？ANSWERS1)Itwascausedbybadfarmingmethodsandseveralyearswithverylittlerainfallmadethingsworse.2）TheChinesegovernmentisfightingdesertificationbyimprovingfarmingmethodsandplantingtreesandgrass.3）InAfricatheyareworsethananywhereelse。Theyarelosingalargepartoftheiragriculturallands。Nowtheycan'tproduceenoughfoodfortheirpopulationandtheirgovernmentsdon’thaveenoughmoneytofightdesertification.3．Languagepoints1）TheDustBowlofthe1930swastheworstagriculturaldisasterinthehistoryoftheUnitedStates。2）Over200，000peoplewereforcedtoleavetheirhomesandmovedwesttothecities.3)However，thereisstillalottobedonebeforepeoplecanfarmthelandagain.Step4Makingasummary【2min.】Summarisethewholeperiod.First，emphasisethemainpointsofthismoduleinordertobetterguidethestudentstocarryontheself­reflectionandsummary.Makesurethatthestudentshaveagoodcommandofthevocabularyandphrasesaboutprotectingtheenvironment.Thensummarisethereadingstrategies-skimming，scanning，guessingandkeywordsinordertohelpthestudentsbetterunderstandapassage。Step5HomeworkAskthestudentstowriteacompositionaccordingtothepresentationinStep1。eq\o（\s\up7（),\s\do5（教学参考))SandstormAmassivesandstormhasenvelopedmostofnorthernChina,coveringthecapitalBeijinginashroudofdensedustandreducingvisibilitytolessthan50metresinsomeareas.Thestormisthestrongestandmostintensethisspring，andhitChina'snorthonMarchwithfiercewinds.Sandstormsarefrequentinspring，triggeredbysuddenseasonaltemperaturechanges。Itcoverstheentirecitywithlayersofsand,andairtransportationhasbeenaffectedinthestorm。hitregions,whichspreadfromthewesttotheeastofnorthernChinaincludingGansuandNingxiaprovincesaswellastheInnerMongoliaAutonomousRegion。Therefore,manypeoplewonderhowmuchworsetheweatherwillbecomewhenthespringsandstormssweepintothemainlandoneafteranother.Infactthesandstormhasposedaseriousthreattotheairqualityandenvironment。Sandstormslikethese，whichoccurredinancienttimes，arewidelyknownamongtheherdsmeninInnerMongoliaas“Huang­mao。feng，”meaning,“windthatcarriesyellowsand”．Inrecentyears,thesesandstormshaveoccurredmorefrequently，atshorterintervals，andwithgreaterintensity.AsandstormonDecember31st,2000wasthefirstonetohitChinaindecades.Sincethen，therehasbeenoneeverymonth.Wecan’thelpbutask:isthisaphenomenonpurelypoweredbyMotherNature，anoccurrenceoverwhichwehavenocontrol？Thefactisthatsandstormsarecausedlargelybyhumanactions—mainlyexcessiveherdingandexploitationofthegrasslands.Undernormalconditions，InnerMongoliaprovidesgrazingforuptosomefortymillionsheep；yet，asmanyasseventymillionsheephavebeenfeedingonthatarearecently。Becauseoftheincreasingpriceofgoats’wool,herdsmeninInnerMongoliahavebeenhustlingtoraisegoats.Inthesetimes，desertificationisaprimaryenvironmentalconcern。Unrestrictedfarmingisbelievedtobethemaincauseofdesertification.Seriousdestructionofvegetation，datingbackfromtheCulturalRevolutioninthe60’sand70'stoasrecentlyastwoyearsago,haspromptedtheten。thousand.people。plant。treesactivity，withanaimofreducingtheincidenceofsandstorms。However，suchmeasurestouchonlythetip，butdonotaddressthebasisoftheproblem.Nooneeverbotherstocareforthetreesafterplantingthemandsothesurvivalrateofthetreesisstaggeringlow。Thissimplyisnotaviablemethodofresolvingtheproblem.Withtheglobalclimateconstantlychanging,sandstormsareexpectedtooccurmorefrequently，andhumanitywillbeforcedtoconfrontthedelayedeffectsofhavingrecklesslyexploitedtheenvironment。Itisonlyrecentlythatsomeofus，whohavebeenpursuingeconomicgoals，havebegunnoticingtheenvironmentalbacklash.Perhapsman,whoisfinallyeatinghisownbitterfruits,willunderstandthateconomicdevelopmentdoesnothavetobeattheexpenseoftheenvironmen