高中英語Module4SandstormsinAsiaPeriod1教案外研版

外研版必修三Module4SandstormsinAsia教學(xué)設(shè)計單元規(guī)劃話題任務(wù)1.TalkaboutthesandstormsinAsia,especiallyinChina.2.Talkaboutthewaystoexpressone’sfeelings.3.TheGreenMovement—organizedtoprotecttheenvironment.4.Designaposterthatencouragespeopletolookaftertheenvironment.教學(xué)重點單詞sandstorm;frightening(嚇人的；可怕的);inland;mass;campaign;dune;desertification;process(進程；過程);citizen;dust;forecast(預(yù)報,預(yù)告);strength(力量,力氣);cycle;mask;atmosphere;carbondioxide;chemical(化學(xué)藥品);environment(環(huán)境);garbage;melt;pollution(污染);recycle;coastal;concerned(關(guān)心的;擔心的);evidence;major(主要的;多數(shù)的);urgent;pollute(污染);complain;nutshell;scary(恐怖的,嚇人的);absolutely;protection(保護)短語cutdown;becaughtin(被困住);oneafteranother;haveabadeffecton(對……有壞影響);takein;giveout;inanutshell;lookthrough(瀏覽);asaresultof(作為……的結(jié)果);digup;wakeupto;gotowork句型1.Theyareoftensothickthatyoucannotseethesun.如此……以至于……(結(jié)果狀語從句)2.Therewasnothingtobedone(不定式作后置定語)3.SandstormsinChinaappeartohaveincreasedinrecentyearsasaresultof“desertification”.看起來好像加劇了(連系動詞appear的用法)4.Ican’thelpbutfeelveryconcerned.不由得感到……(but+infinitive)5.Icouldn’tagreewithyoumore.非常同意你所說的話。(否定詞與比較級連用表示肯定的意義)教學(xué)難點1.Talkabouttheenvironment,especiallysandstorms.2.Infinitiveandbut+infinitive3.Learntoexpressstrongopinionsinanegativeway.4.Designaposterthatencouragespeopletolookaftertheenvironment.語法1.Thedifferenttypesofinfinitive:do,todo,tobedoing,tohavedone,tohavebeendone2.Expressionswithbut+infinitiveIcan’t(help)butagree.Wedonothingbuttalkaboutit.功能1.Icouldn’tagreewithyoumore.2.Ithinkyou’reabsolutelyright.3.It’sextremelyserious.4.Ihavenoidea.5.Itcouldn’tbeworse.6.It’sabsolutelyhopeless.課時安排Periodsneeded:SixPeriod1IntroductionPeriod2ReadingandVocabularyPeriod3Grammar1;Grammar2;PronunciationandFunctionPeriod4ListeningandVocabulary;SpeakingPeriod5Writing;EverydayEnglishPeriod6CulturalCorner;Task;ModuleFilePeriod1Introduction整體設(shè)計教材分析在本節(jié)課中學(xué)生將會學(xué)到一些關(guān)于天氣的詞匯,重點是用來描述沙塵暴的詞匯。教材設(shè)計了三個活動來逐漸熟悉本模塊的話題,學(xué)生可以通過教材設(shè)計的三個活動來加深對本單元話題的理解,并能流利地表達沙塵暴發(fā)生時的場景?；顒右豢梢栽O(shè)計成看圖說話,教師要引導(dǎo)學(xué)生想象和回想沙塵暴發(fā)生時的場景并準確地描述出來?；顒佣呐袛嗾`可以使學(xué)生對當今地球的環(huán)境惡化有個更深地了解。最后的小組討論活動涉及人們在沙塵暴中的自我保護和對改造環(huán)境能夠作出什么樣的努力。學(xué)生通過本節(jié)課的學(xué)習(xí),能夠?qū)ι硥m暴這種天氣現(xiàn)象作出準確的描述并能分析其原因和給出解決方法。三維目標1.知識與技能1)Makestudentsmastersomenewwords.2)Encouragestudentstoknowhowtodescribeasandstorm.2.過程與方法Trainstudents’speakingabilitythroughindividualandpairwork.3.情感與價值Getstudentstoknowtheharmthatsandstormsdotohumanbeingsandtrytodeveloptheirsenseofenvironmentprotection.教學(xué)重點Gettoknowsomeinformationaboutsandstormsandencouragestudentstousetheirownwordstodescribethem.教學(xué)難點Learnsomenewwordsandotherinformationaboutsandstorms.教學(xué)方法Individualwork,pairworktogeteverystudenttoparticipateinclass.教學(xué)過程→Step1Backgroundaboutthetopicofthismodule1.Talkaboutthetopicofthismoduleasanintroduction.Showthefollowingpassagetostudentsonthescreen.AboutSandstormThetopicofthismoduleis“environmentalconservation”(環(huán)境保護).ThismodulemainlyintroducessomethingaboutthesandstormsinAsia,especiallyinChina.Atthesametime,itbringsinsomewordsaboutsandstormsandenvironmentalconservation.Whatisasandstorm?Asandstorm,akindofdisastrous(災(zāi)難性的)weathersystem,isacombinationofsandandstrongwind.Whatonearthcausessandstorms?Inmyopinion,severesandstormsareusuallycausedbybothnaturalandcontrived(人為的)factors,thatis,climatic,geographical,socialandhumanfactors.Ofallthefactors,theoveruseofnaturalresources,suchascuttingdowntoomanytreesandopeninguptoomuchuntouchedland,leadstothefrequentoccurrenceofsandstorms.Wheredoesasandstormusuallygo?Asmentionedabove,disastrousasitis,asandstormdoesnotgoeverywhere,comingtoonlythoseplaceswithdryweatherandlittlevegetation(植物的總稱,植被).TakeChinaforexample,inthenorthwestofChina,wherethereislittleforest,sandstormsareworsenedwith(因為……而惡化)people’sactivitieslikediggingupgrassandmining(采礦).Barelandeasilygivesawayitslandwhenstrongwindscome,interactionofsandandwindformingasandstorm.Andwhatdamagewillsandstormsusuallycause?Inaword,alotofdamage.Sandstormscankillpeopleandanimals,putdownbuildingsandcausepoorharvests.What’smore,theycanpollutetheatmosphereandblowawaytopsoil.2.Discussion:Asseniorstudents,whatshouldyoudotopreventsandstorms?Herearesomevaluablesuggestions:1)Controlairandwaterpollution;2)Buildgreenfencesalongthedesert;3)Forecastsandstorm’srealtimetopreventthedisaster;4)Allcountriesshouldjoinhandstoproposeaplaninsandstormcontrolandprevention.Whatcanyouaddtothesesuggestions?Studentscandiscussandaddmoretotheabovesuggestions.→Step2Activity1Introductionisthewarming-upofthismodule.Thispartmainlyintroducessomewordsrelatedtosandstorms.We’lllearnitbyfinishingthefollowing3activities.Activity1(Page31)OptionOne1.Askstudentstolookatthepictureandask“Whathappens?”Studentswillgivetheirpossibleanswerslikethis:Thereisaterriblesandstorm.Somecarsarealmostburied.Thatis,theyarealmostcoveredwithsand.Theteachercanleadinandrepeatthewordsinthebox.blowburyfrighteninglast(v.)sandstorm2.Thenaskstudentstocompletethesentencesusingthecorrectformofeachofthesewordsinthebox.Therehasbeena_____________.It_____________fortenhoursandwasvery_____________.Thewind_____________thesandhigharoundthehouses,andsomecarswerealmostcompletely_____________bythesand.Studentscanchecktheanswerswiththeirpartners.Suggestedanswers:1)sandstorm2)haslasted/beenblowing3)frightening4)wasblowing5)buried3.Explainsomewords:1.Itlastedfortenhoursandwasveryfrightening.它(沙塵暴)持續(xù)了十個小時,而且是非?？膳碌?。frighteningadj.causingfear;alarming嚇人的;可怕的afrighteningexperience一次可怕的經(jīng)歷frightenvt.fillsb.withfear;makeafraid使害怕;使(人)感到恐懼Thestormfrightensthebaby.暴風雨使那個嬰兒受驚嚇。frightenedadj.inastateoffear;afraid;scared感到恐懼的;受到驚嚇的Helookedfrightenedashespoke.他說話時顯得非常恐懼?！颈嫖觥縡rightening與frightened形容詞frightening意為“令人驚嚇的,恐怖的”,常用來說明事物。類似的形容詞還有exciting,interesting,disappointing,puzzling,surprising,astonishing,shocking,moving,amusing,encouraging,boring,pleasing,inspiring,tiring,worrying等,如:Thesituationisencouraging.形勢使人感到鼓舞。與frightening相對應(yīng)的過去分詞型的形容詞是frightened,常用來修飾人。類似的形容詞還有excited,interested,disappointed,puzzled,surprised,astonished,shocked,moved,amused,encouraged,bored,delighted,inspired,pleased,tired,worried等。注意:若說明或修飾的名詞是face,look,smile,voice等能表現(xiàn)出人的情感的詞,通常用過去分詞型的形容詞。如:Therewasanexcitedlookonhisface.他的臉上有種興奮的表情。Hervoicesoundedexcited.她的聲音聽起來很興奮。Thegirlstaredatthemanwithfrightenedeyes.這女孩以驚恐的眼神凝視那位男子。練習(xí)(1)Mr.Smith,_____________ofthe_____________speech,startedtoreadanovel.A.tired;boringB.tiring;boredC.tired;boredD.tiring;boring(2)IwascyclinginthestreetwhenIheardanoldwoman_____________outa_____________cryandthensawherbleedingbadly.A.give;frighteningB.give;frightenedC.togive;frighteningD.togive;frightened(3)_____________thebigsnake,thelittlegirlstoodunderthetree,_____________outofherlife.A.Seen;frighteningB.Seeing;frighteningC.Tosee;frightenedD.Seeing;frightened答案:(1)A第一個空形容史密斯先生累了,指人,用過去分詞。第二個空指speech“演講”,指物,用現(xiàn)在分詞表示“令人厭倦的”。(2)B第一個空是hearsb.dosth.結(jié)構(gòu),“聽見某人做某事”,第二個空修飾的是cry這一表現(xiàn)出老婦人的情感的詞,所以用frightened。實際上，此時若強調(diào)“我”的感受，選A項也可以。(3)D第一個空“看見大蛇”,“看”的邏輯主語是thelittlegirl,所以要用現(xiàn)在分詞表示主動；后一個空指的是小女孩嚇得掉了魂,指人,用過去分詞。2.lastv.&adj.(1)v.continue,goon“持續(xù),延續(xù)(無被動)”,后面常接表示一段的時間狀語,且狀語前可帶或不帶for。ThehotweatherwilllastuntilSeptember.酷熱天氣將會延續(xù)到九月。Thewarlasted(for)5years.戰(zhàn)爭持續(xù)了5年。(2)v.toremainofuse耐久;耐用Thiskindofclothlastslong.這種布耐穿。(3)v.tobeenoughfor足夠Thefoodwilllastforthreedays.食物還能維持3天。(4)adj.theoneafteralltheothers最后的Hewasthelastpersontoarriveattheparty.他是最后一個到達聚會的。Saturdayisthelastdayofaweek.星期六是一周的最后一天。(5)adj.notpossible最不可能的Heisthelastmantotelllies.他是最不可能說謊的人。(6)adj.past過去的GreatchangeshavetakenplaceinChinainthelasttenyears.在過去10年里中國發(fā)生了很大變化。(7)n.thingsorpeopleremainingintheend最后的人或事物Thesearethelastofourbooks.我們就剩下這些書了。[拓展]atlast最后thelast...butone倒數(shù)第二的tothelast直到最后lastofall在最后lastingadj.持久的,永恒的練習(xí)Itissaidthattheweatherwill_____________hotforanotherthreeorfourdays.A.lookB.lastC.stayD.get答案:C天氣將繼續(xù)熱三四天。last后面通常要加表示時間的短語。3.Thewindblewthesandhigharoundthehouses,andsomecarswerealmostcompletelyburiedbythesand.強勁的風吹得房子周圍的沙塵四處飛揚,有些小汽車幾乎被沙塵所埋沒。blowvt.&vi.bemoving吹,吹動,刮。例如:Thewindsblowacrossthesea,pushinglittlewavesintobiggerandbiggerones.風吹過海面,把小的波浪推向前進,變成越來越大的波浪。Thewindhasblownmyhatoff.風把我的帽子刮走了。blown.hardstroke;suddenshock打,打擊,奇襲,猛攻。例如:givesb.ablowonthehead給某人頭上一擊blowaway刮走blowdown刮倒blowover刮倒,吹倒blowoff吹掉blowout吹滅4.Checktheanswers.OptionTwo1.Pairwork.Studentsreadthewordintheboxandtalkabouttheirmeaningsorrefertothedictionaries.2.Fillintheblanksandcheckwitheachother.3.Letsomeindividualstudentsreadtheiranswersandcorrectthemistakes.4.Explainsomewords:thesameasOptionOne,3.→Step3Activity2(Page31)Checkthemeaningofthesewords.1.Readoutthewordsandaskstudentstorepeatthemafteryou.Takecarewiththestressonthesetwowords:protect,Pacific.2.Pairstudentstodecideonthemeaningswithorwithoutdictionaries.3.Thenaskstudentstoworkinpairstodecidewhichofthefollowingstatementsisfalse.1.Sandstormsbeginindesertareas.2.Desertsarecreatedbyclimatechanges.3.Desertsarealsocreatedbecausepeoplecutdowntreesanddigupgrass.4.SandstormsfromAsiahaveblownacrossthePacificOceantoAmerica.5.Sandstormscan’tbeprevented.6.Theinlandregionhasmoresandstormsthantheonenearthesea.Suggestedanswers:Thefifthisfalse.4.Explainsomelanguagepoints.1.Desertsarealsocreatedbecausepeoplecutdowntreesanddigupgrass.人們把樹砍了,把草挖了,也是沙漠的一個成因。cutdown(1)tobringdownbycutting通過砍伐使減少Cuttingdownsomanytreeswithoutplantingsomewillmaketheenvironmentworse.砍伐掉這么多樹木而不種植補充會使環(huán)境變得更壞。(2)toreduceinamount減少Thedoctorshaveadvisedcuttingdownsmokinganddrinking.醫(yī)生建議少抽煙,少喝酒。(3)toknockdownorkillsb.擊倒或殺死某人Therobbercutdownthepersonandranawayinataxi.搶劫犯把那個人殺了然后乘出租車跑了。cutacross抄近路cutat對準(某人)猛擊cutback剪枝cutup剪成碎片cutoff切斷cutout剪除練習(xí)Hewasinhospitalforsixmonths.Hefeltasifhewas_____________fromtheoutsideworld.A.cutoutB.cutoffC.cutupD.cutthrough答案:B根據(jù)短語的意思分析,此處指他住院六個月,感覺好像跟外界切斷了聯(lián)系。cutthrough指“抄近路走過;刺穿”。2.Ifyouareinadesert,whatisthefirstsignofasandstorm?如果你在沙漠里,沙塵暴的第一個跡象是什么？signn.&v.(1)n.board,notice,etc.thatdirectssb.towardssth.,givesawarning,advertisesabusiness,etc.“標志牌”“符號”“動作”“手勢”Haven’tyouseenthesign“Noparking”?你沒有看到牌子上寫著“不許停車”嗎？Shakingheadsisasignofdisagreement.搖頭是表示不同意的動作。(2)n.thingthatshowsthatsb./sth.ispresentorexists,orthatsth.mayhappen“跡象”“征兆”“痕跡”Veryoftendarkcloudsareasignofrain.烏云常常是下雨的征兆。ScientistshavefoundnosignsoflifeonMars(火星)sofar.迄今為止科學(xué)家們還未在火星上發(fā)現(xiàn)生命跡象。(3)vt.writeone’snameonadocument,etc.thatoneagreeswithitscontents“簽名”“簽約”Hesignedhisnameonthebook.他在那本書上簽上了他的名字。LiuDehuahassignedwiththetelevisionstationtoactinthenewmovie.劉德華已經(jīng)和那家電視臺簽約在新劇中出影。(4)vt.conveyinformationorarequestoranorderbymakingagesture“示意”“作手勢”Hesignedmetobequiet.他示意要我安靜。Thepolicemansignedforthemtostop.警察做手勢要他們停下來。signin簽到signout簽名離去→Step4Activity3(Page31)1.Askstudentstochooseonediscussionquestionwhichintereststhemmost,andthenaskthemtodiscussitingroups.1Whatshouldyoudoinasandstormtoprotectyourself?2Whichdoyouthinkismoredangerous,anearthquakeorasandstorm?Saywhy.3WhereinChinadosandstormsbegin?4Ifyouareinadesert,whatisthefirstsignofasandstorm?5Haveyoueverbeeninasandstorm?Ifyes,describeittoyourpartner.2.Givestudentssomerequirementsonhowtodiscussasfollows:1)Eachmemberinthegroupissupposedtospeak.2)Supportyourideawithproperreasons.3)Writedownkeywordsandsentences.→Step5SummaryandhomeworkInthism