高中英语人教新课标必修4教案：Unit 2 Working the land Period 5 Speaking and Writing

Period5　SpeakingandWritingTheGeneralIdeaofThisPeriodThisperiodaimsatencouragingthestudentstolearnhowtodescribetheadvantagesoftheorganicfoodandthedisadvantagesofthefoodwithchemicalfertilizer,andhowtowriteaposteraboutit.TeachingImportantPointsGetthestudentstolearntowriteaposter.Enablethestudentstograsptheusageofthewords,expressionsandthedrillstheylearntinthisunit.TeachingDifficultPointsHowtowriteaposterinacorrectway.TeachingMethodsCreatesomesituationsfortheSstotalkactivelyinpublic.Practicetoimprovethestudents’writingability.TeachingAidsAmultimediacomputerThreeDimensionalTeachingAimsKnowledgeandSkillsGetthestudentstolearnhowtowriteaposter.Helpthestudentsconsolidatethewords,expressionsanddrillslearntinthisunit.ProcessandStrategiesEncouragethestudentstodescribetheadvantagesanddisadvantagesbyofferingexamples.FeelingsandValueAspeoplearemoreandmoreconcernedaboutthequalityofthefoodtheyeat,thistopicismoreandmoremeaningful.Throughthestudyofthispartnotonlywilltheyknowmoreaboutthequalityoffood,butalsotheywilllearnabouthowtopersuadeotherstobuythefoodyouhaveproposed.TeachingProceduresStep1Revision1.Greetings.2.Askthestudentstotellthewords,expressionsanddrillsthatcanbeusedtodescribeorganicfarming.Step2ReadingThisisthefirststepofReading,SpeakingandWriting.Inthethreesteps,theteachershouldremindthestudentsthattheyshouldgetthekeywordsofthepassagewhentheydosomereading,inordertogetagoodunderstandingandmakeagoodbaseforthewriting;forspeaking,theyshouldattendtowhattheywilldo.Becarefulnottobeoffthepoint;forwriting,themostimportantthingistopractisewritingusefulwords,phrases,insteadofthewholesentences.Afterthestudentsgetknownabouttherules,askthemtoreadtheshortpassageinEx.1Page15,andaskthestudentstofindoutthekeypointsofthepassage.Thesuggestedanswer:AdvantageDisadvantage1.Healthyandsafe1.Peopledon’tknowaboutthefoodandhowgooditis.2.Freeofchemicalfertilizers2.Moreexpensivethanotherfoodwhichisnotsosafe.3.Grownawayfromindustrialareas4.AwayfromdirtywatersuppliesT:Nowlet’slearnhowtousethesewordstopersuadepeopletobuyyourfood!Let’scometonextpart.Step3Speaking,Task1:Thestudentstrytofindreasonstopersuadepeopletobuytheirfood.Usetheabovewordsaboutthecontentoftheshortpassageandthefollowingexpressions:Iwouldrather...Idon’tlikebecause...I’dprefer...because...It’sagreatpitythat...ShouldI/we...?It’sbetterto...Thisisgoodvaluebecause...IfIhaveachoiceI’dchoose...because...Whatistheadvantageof?Youneedto...Afterthreeminutes,theteacheraskssomestudentstoactouttheirdialogue.(Inpairs,oneisthefarmer,theotheroneisacustomer.)Step4WritingPre-writingThisexerciseletsstudentscollectandlistinformation,thenselectwhattheythinkismostimportantandorganizeitforpresentation.Task1:Thestudentsgatherinformationthattheyneedandplanwhattheywanttowrite.While-writingTask2:Thestudentswriteapostertoencouragemorepeopletobuytheirgreenfood.1.Thestudentsselectandorganizewhattheywanttowriteandwriteaposter.2.Thestudentschecktheirmistakesintheirposter.3.Thestudentsrewritetheirposter.AnexampleofhowtopresentaposterBuythebestfruitshere.Weonlysellgreenfoodinthisshop!Bestchoiceatbestprice!Safe,healthy,clean,fresh.Farawayfromanypollution.Nochemicalfertilizer,allorganicfertilizersCleanair,cleanwaterNopoison,nopesticidesHomeinheavenHealthyfoodmeanshealthylife.Farawayfromdiseases,withoutworries,fullofhappiness.(onereason)After-writingThestudentsshowtheirposterinclass.WritingtipsInwritingaposter,makesureithas:☆Anattractivetitle;☆Explainthereasonsthatyousellgreenfood;☆Explainwhyyourgreenfoodisofgoodvalue;☆Trytowritecorrectandclearsentences.Step4Homework1.Comparetheposterwiththesuggestedanswers,andremembertheusefulexpressions.2.Prepareforthenextclass.,TheDesignoftheWritingontheBlackboardUnit2　WorkingthelandPeriod5　SpeakingandwritingInwritingaposter,makesureithas:☆Anattractivetitle;☆Explainthereasonsthatyousellgreenfood;☆Explainwhyyourgreenfoodisofgoodvalue;☆Trytowritecorrectandclearsentences.RecordafterTeachingActivitiesandResearchTomakepreparationsforthisperiod,youmayaskthestudentstofindsomerelatedinformationontheInternet.Adiscussionissuggestedtogetenoughinformationtheyneed.ReferenceforTeachingLearningTips写作中的常用句型以下是写作中使用率最高、覆盖面最广的基本句式,每组句式的功能相同或相似,考生可根据自己的情况选择其中的1~2个,作到能够熟练正确地仿写或套用。1.表示原因1）Therearethreereasonsforthis.2）Thereasonsforthisareasfollows.3）Thereasonforthisisobvious.4）Thereasonforthisisnotfartoseek.5）Thereasonforthisisthat...6）Wehavegoodreasontobelievethat...例如:Therearethreereasonsforthechangesthathavetakenplaceinourlife.Firstly,people’slivingstandardhasbeengreatlyimproved.Secondly,mostpeoplearewellpaid,andtheycanaffordwhattheyneedorlike.Lastbutnotleast,moreandmorepeopleprefertoenjoymodernlife.注:如考生写第一个句子没有把握,可将其改写成两个句子。例如:Greatchangeshavetakenplaceinourlife.Therearethreereasonsforthis.这样写可以避免套用中的表达失误。2.表示好处1）Ithasthefollowingadvantages.2）Itdoesusalotofgood.3）Itbenefitsusquitealot.4）Itisbeneficialtous.5）Itisofgreatbenefittous.例如:Booksarelikefriends.Theycanhelpusknowtheworldbetter,andtheycanopenourmindsandwidenourhorizons.Therefore,readingextensivelyisofgreatbenefittous.3.表示坏处1）Ithasmoredisadvantagesthanadvantages.2）Itdoesusmuchharm.,3）Itisharmfultous.例如:However,everythingdividesintotwo.Televisioncanalsobeharmfultous.Itcandoharmtoourhealthandmakeuslazyifwespendtoomuchtimewatchingtelevision.4.表示重要、必要、困难、方便、可能1）Itisimportant（necessary,difficult,convenient,possible）forsb.todosth.2）Wethinkitnecessarytodosth.3）Itplaysanimportantroleinourlife.例如:Computersarenowbeingusedeverywhere,whetherinthegovernment,inschoolsorinbusiness.Soon,computerswillbefoundineveryhome,too.WehavegoodreasontosaythatcomputersareplayinganincreasinglyimportantroleinourlifeandwehavesteppedintotheComputerAge.5.表示措施1）Weshouldtakesomeeffectivemeasures.2）Weshouldtryourbesttoovercome（conquer）thedifficulties.3）Weshoulddoourutmostindoingsth.4）Weshouldsolvetheproblemsthatweareconfronted（faced）with.例如:Thehousingproblemthatweareconfrontedwithisbecomingmoreandmoreserious.Therefore,wemusttakesomeeffectivemeasurestosolveit.6.表示变化1）Somechangeshavetakenplaceinthepastfiveyears.2）Agreatchangewillcertainlybeproducedintheworld’scommunications.3）Thecomputerhasbroughtaboutmanychangesineducation.例如:Somechangeshavetakenplaceinpeople’sdietinthepastfiveyears.Themajorreasonsforthesechangesarenotfartoseek.Nowadays,moreandmorepeopleareswitchingfromgraintomeatforprotein,andfromfruitandvegetabletomilkforvitamins.7.表示事实、现状1）Wecannotignorethefactthat...2）Noonecandenythefactthat...3）Thereisnodenyingthefactthat...4）Thisisaphenomenonthatmanypeopleareinterestedin.5）However,that’snotthecase.例如:Wecannotignorethefactthatindustrializationbringswithittheproblemsofpollution.Tosolvetheseproblems,wecanstartbyeducatingthepublicaboutthehazardsofpollution.Thegovernmentonitspartshouldalsodesignstricterlawstopromoteacleanerenvironment.8.表示比较1）ComparedwithA,B...2）IprefertoreadratherthanwatchTV.3）Thereisastrikingcontrastbetweenthem.例如:Comparedwithcars,bicycleshaveseveraladvantagesbesidesbeingaffordable.Firstly,theydonotconsumenaturalresourcesofpetroleum.Secondly,theydonotcausethepollutionproblem.Lastbutnotleast,theycontributetopeople’shealthbygivingthemduephysicalexercise.,9.表示数量1）Ithasincreased（decreased）from...to...2）Thepopulationinthiscityhasnowincreased（decreased）to800000.3）TheoutputofJulyinthisfactoryincreasedby15％comparedwiththatofJanuary例如:Withtheimprovementofthelivingstandard,theproportionofpeople’sincomespentonfoodhasdecreasedwhilethatspentoneducationhasincreased.再如:Fromthegraphlistedabove,itcanbeseenthatstudentuseofcomputershasincreasedfromanaverageoflessthantwohoursperweekin1990to20hoursin2000.10.表示看法1）Peoplehave（take,adopt,assume）differentattitudestowardssth.2）Peoplehavedifferentopinionsonthisproblem.3）Peopletakedifferentviewsof（on）thequestion.4）Somepeoplebelievethat...Othersarguethat...例如:Peoplehavedifferentattitudestowardsfailure.Somebelievethatfailureleadstosuccess.Everyfailuretheyexperiencetranslatesintoagreaterchanceofsuccessattheirrenewedendeavor.However,othersareeasilydiscouragedbyfailuresandputthemselvesintothecategoryoflosers.再如:Do“luckynumbersreallybringgoodluck？Differentpeoplehavedifferentviewsonit.注:一个段落有时很适宜以问句开始,考生应掌握这一写作方法。11.表示结论1）Inshort,itcanbesaidthat...2）Itmaybebrieflysummedupasfollows.3）Fromwhathasbeenmentionedabove,wecancometotheconclusionthat...例如:Fromwhathasbeenmentionedabove,wecancometotheconclusionthatexaminationisnecessary,however,itsmethodshouldbeimproved.注:例句1可用于任何一个段落的结论句;例句3则多用文章结论段的第一句。12.套语1）It’swellknowntousthat...2）Asisknowntous,...3）Thisisatopicthatisbeingwidelytalkedabout.4）Fromthegraph（table,chart）listedabove,itcanbeseenthat...5）Asaproverbsays,“Wherethereisawill,thereisaway.”例如:Asiswellknowntous,itisimportantforthestudentstoknowtheworldoutsidecampus.Thereasonforthisisobvious.Nowadays,thesocietyischanginganddevelopingrapidly,andthecampusisnolongeran“ivorytower”.Ascollegestudents,wemustgetintouchwiththeworldoutsidethecampus.Onlyinthiswaycanweadaptourselvestothesocietyquicklyafterwegraduate.再如:Doesitpaytobehonest？Thisisatopicthatisbeingwidelytalkedaboutanddifferentpeoplehavedifferentopinionsonit.