Module 4 Sandstorms in Asia 教学设计3优质公开课外研版必修3精品Word文件下载.docx
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Period3Grammar1Infinitive.ListeningandVocabulary
Period4Grammar2but+infinitive,EverydayEnglish
Period5Culturalcorner,Speaking2,Writing
TeachingProcedures
PeriodOne
Step1Warmingup
1.Talkaboutthetopicofthismoduleasanintroduction.Showorreadthefollowingpassagetostudents.
AboutSandstorm
Thetopicofthismoduleis“environmentalconservation”(环境保护).
ThismodulemainlyintroducessomethingaboutthesandstormsinAsia,
especiallyinChina.Atthesametime,itbringsinsomewordsabout
sandstormsandenvironmentalconservation.
Whatisasandstorm?
Asandstorm,akindofdisastrous(灾难性的)weathersystem,isacombinationofsandandstrongwind.
Whatonearthcausessandstorms?
Inmyopinion,severesandstormsareusuallycausedbybothnaturalandcontrived(人为的)factors,thatis,climatic,geographical,socialandhumanfactors.Ofallthefactors,theoveruseofnaturalresources,suchascuttingdowntoomanytreesandopeninguptoomuchuntouchedland,leadstothefrequentoccurrenceofsandstorms.
Wheredoesasandstormusuallygo?
Asmentionedabove,disastrousasitis,asandstormdoesnotgoeverywhere,comingtoonlythoseplaceswithdryweatherandlittlevegetation(植物的总称,植被).TakeChinaforexample,inthenorthwestofChina,wherethereislittleforest,sandstormsareworsenedwith(因为……而恶化)people’sactivitieslikediggingupgrassandmining(采矿).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.
3.Completethesentencesusingthecorrectformofthesewords.Thenanswerthefollowingquestions.
blowburyfrighteninglastsandstorm
Therehasbeenasandstorm.Ithasbeenblowing/haslastedfortenhours
andwasveryfrightening.Thewindwasblowingthesandhigharound
thehouses,andsomecarswerealmostcompletelyburiedbythesand.
Q1.Whatisasandstorm?
Sandstormisakindofbadweather,whichisbecomingincreasingly
commoninNorthwesternChina,anditusuallyhappensinspring
andfall.Whenasandstormcomes,thewindblowsstronglywithdustandsand.
Q2.What’stheweatherlikewhenasandstormoccurs?
Thereisstrong,drywindandtheskyisyellow.
Q3.What’sthebadinfluenceofasandstorm?
carsslowdownandhavetoturnonheadlight(打开前灯);
thevisibility(能见度)drops;
difficultforustobreathe;
dangeroustogooutordrive
Step2Furtherunderstanding
Workinpairs.Discussthefollowingstatementsanddecidewhetheritistrueorfalse.
1.Sandstormsbeginindesertareas.
2.Desertsarecreatedbyclimatechanges.
3.Desertsarealsocreatedbecausepeoplecutdowntreesanddigupgrass.
4.SandstormsfromAsiahaveblownacrossthePacificOceantoAmerica.
5.Sandstormscan’tbeprevented.
6.Theinlandregionhasmoresandstormsthantheonenearthesea.
Suggestedanswers:
1,2,3,4,6—T5—F
Step3Discussions
Q1.What’sthecauseofsandstorm?
climatechanges;
treescutdown;
desertification;
seriousairandwaterpollution;
thegrowingpopulationoftheworldandsoon.
Q2.Whatshouldyoudoinasandstormtoprotectyourself?
Thisisanopenquestion.
Step4Speaking
Workinpairs.Supposetherehasbeenabadsandstorminyourcity.
A:
Youareareporter.Youinterviewamanwhohascycledtoworkinthesandstorm.Beforeyoudotheinterview,writedownthequestionsyouwanttoask.
B:
Youfeltfrightenedbutyouputonamaskandcycledtoworkinthesandstorm.Tellthereporterhowyoufeelaboutthesandstorm.Describehowthingslookedinthesandstorm.
Step5Homework
1.Memorizethenewwordsrelatedtosandstorms.
2.PreviewthepassageofSandstormsinAsia.
PeriodTwo
Step1Revisionandlead-in
Theteachercanleadstudentsintothetopicofthetextbytalkingabouttheweatherasfollows:
T:
What’stheweatherliketoday?
S:
It’ssunny(or:
rainy/windy...)
Istheweatherniceorbad?
Verynice.Ornotbad.Orterrible.
Yes,verynice.Buttheweatherisnotalwaysnice,sometimesthereisalotofbadoreventerribleweather.Wecancallthebadoreventerribleweather“naturaldisaster”.Doyouknow“disaster”?
S:
Yes,wedo.Itmeans“灾害”inChinese.
Good,canyouspeakoutthenamesofsomedisastrousweatherinthelastmodule?
Yes,suchasfloods,hurricanes,lightningandtornados.
Oh,it’swonderful!
Andinthismodule—Module4,we’llcontinuetolearnaboutanotherdisastrousweathernamedsandstorms.Let’sgo!
Step2Pre-reading
1.Wordmeaning:
Activity2(Matchthewordswiththedefinitions).
Readoutthewordsintheboxandhavestudentsrepeatthemaftertheteacher.Thenaskstudentstomatchthedefinitionsindividually,afterthat,checktheanswerswiththewholeclass.
Keys:
1.cycle 2.expert 3.process 4.citizen 5.dust 6.survive 7.forecast 8.situation
2.Lookatthephotointhereadingtextfirstandanswerthefollowingquestions.Activity1
1.GetSstocomeupwithasmanywordsaspossiblewhilelookingatthepicture.
maskcyclecyclistdustcitizenfrighteningsandstorm
2.Whatishappening?
Thereisasandstormblowing.
3.Whatisthecyclistwearingandwhy?
Sheiswearinghoods(头巾),masksandglasses.
4.Whatdoyouthinkhappenedtotrafficinthissituation?
Why?
Thetrafficmovesslowlyforit’snotcleartoseeeverythingontheroad
andpeoplemusttakegreatcare.
5.Whatdoyouthinkexpertsadvisepeopletodointhissituation?
Expertsadvisepeopletostayathomeinthissituation.
3.Pre-readingdiscussion
Ifyouaretowritethearticlenamed“SandstormsinAsia”,howmanypartswillyouincludeinit?
Whatwillyouwriteineachpart?
Or:
Haveyoueverbeeninasandstorm?
/Haveyoueverexperiencedasandstorm?
Ifyes,describeittous.Ifnot,pleaseimaginewhatitwillbelike.
Step3Fastreading
Option1(forcommonSs):
Readthetextquicklyandtrytofindouttheanswerstothefollowingquestions.
1)What'
sasandstorm?
Sandstormsarestrong,drywindsthatcarrysand.
2)Whereintheworldarethemainfoursandstormplaces/areas?
AndhowaboutinChina?
CentralAsia,NorthAmerica,CentralAfricaandAustralia,NorthwestChina.
3)What'
stheweatherexperts'
advicewhenasandstormcomes?
Theyadviseusnottogoout.Ifwehaveto,we'
dbetterwearamask.
Option2(forbetterSs):
Findthemainpointsofeachparagraph.
AskSstoreadthepassageasquicklyastheycan,andtrytogetthemainideaofeachparagraph.
Part1(Para1)disasterSandstormshavebeenamajordisasterforcenturies.
Part2(Para2-5)descriptionSandstormsinAsia.
cause.SandstormsinChinaappeartohaveincreasedasaresultofdesertification.
SandstorminfluenceSandstormssometimesaffectBeijing.
suggestionsSandstormsdoalotofdamagetopeople.
Part3(Para.6)measuresThegovernmentplantstreestopreventsandstorms.
Step4Detailedreading
1.Readthepassagecarefullyandanswerthefollowingquestion.
1)Whataresandstorms?
2)Inwhatplacesdotheyoftenhappen?
CentralAsia,NorthAmerica,CentralAfricaandAustralia.
3)WhatdoesRenJianbo’sexampletellus?
Itisdangeroustogooutwhenasandstormoccurs
4)AretheresandstormsinChina?
Where?
Yes.NorthwestChina.
5)HavesandstormsinChinaincreasedordecreasedrecently?
Increased.Asaresultofdesertification
6)Whydoestrafficmoveslowlyduringthesandstorm?
Becausethethickdustmakesitdifficulttosee.
7)WhatdoesthegovernmentdotoprotectBeijingfromsandstorms?
Plantmoretrees.
2.Readthepassagecarefullyandthenfillinthechartwithsuitablewords.
Parts
Content
Details
1
majordisaster
Amasscampaign,tohelpsolvesandstorm,triedmanywaystosolveit
2
description
Strongwind,dry,carrysand,Sothick,can’tseethesun
cause
Desertification,Climatechanges,cutdowntrees,digupgrass
influence
Orangesky,strongwinds
suggestion
Stayathome,wearamask
3
measures
Planttrees
3.FinishtheActivities3-5.
Step5Languageexplanations
1.Desertsarealsocreatedbecausepeoplecutdowntreesanddigupgrass.砍树挖草也是沙漠的一个成因。
cutdown: