高中英语 Unit3第1课时 The First Period Speaking教案 新人教版选修8Word下载.docx

高中英语 Unit3第1课时 The First Period Speaking教案 新人教版选修8Word下载.docx

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Enablethestudentstotalkaboutinventionsanddiscoveries.

3.Learningabilitygoals学能目标

Helpthestudentslearnhowtotalkaboutinventionsanddiscoveries.

Teachingimportant&

difficultpoints教学重难点

Howtotalkaboutinventionsanddiscoveries.

Teachingmethods教学方法

Discussion.

Teachingaids教具准备

Aputerandaprojector.

Teachingprocedures&

ways教学过程与方式

StepⅠWarmingup

Talkaboutinventionsanddiscoveries.

T:

Theimportanceofinventionstosocialprogresscanneverbechanged.Eachinventioncarriestheworldastepforwardandprovidesstimulationforlaterones.Withinventionsturningupallthetime,ourworldisalwaystakingonanewlook.Butdoyouknowwhataninventionis?

S1:

Thecreationofsomethingnew.

S2:

Acreation（anewdeviceorprocess）resultingfromstudyandexperimentation.

S3:

Thecreationofnewthings.

…

Askthestudentstotalkaboutthepictureswiththeteacher’shelp,andthendiscussthefirsttwoquestions.

Andwhatisadiscovery?

What’sthedifferencebetweenadiscoveryandaninvention?

Nowlookatthepicturesonpage1.Workinpairsandtalkaboutthethreedifferentthings,tellingthemapartandgivingreasons.

Showthefollowing.

1.Whichofthesepicturesshowinventions?

Doesanyofthemshowdiscoveries?

2.Workouttworulesthatwillhelpyoudecidewhatisadiscoveryandwhatisaninvention?

Ithinkthefirsttwoareinventions,i.e.theamphibiouscarandStevenson’s“Rocket”whilethelastpictureabouttheDNAisakindofdiscovery.Becausethefirsttwoproductswerequitenewtopeopleatthattimeandnoonehadeverseenordesignedsuchkindofvehiclesbeforethoughsomeothershadmadesimilarcarsormachineswhichhadlessfunctionsandadvantagesasthesetwo.IthinkthepictureabouttheDNAisakindofscientificdiscoveryinbiologybecausesuchcellsandtheirstructuredoexistinlivingcreaturesandtheyhavebeenfoundoutbyacertainscientistandaremadeknowntothepublicnowadays.SoIthinkadiscoveryissomethingexistingbeforebutunknownwhileaninventionissomethingunknownandnotexistingbefore.

Ithinkthefirsttwopicturesshowusgreathumaninventionsaboutthetransportationbecausetheywereinventedbypeopleforcertainpurposesandtheyhadspecialadvantagesandcouldsatisfypeople’sneedsinsomeways.OntheotherhandthethirdpictureshowingtheformationofDNAisakindofdiscoverybecausethesespecialcellsexistandfunctioninthebodyoflifeallthetimenomatterwhodiscoversitorwhenandwhereitisdiscovered.Inmyopinionadiscoveryissomethingfoundoutorbroughttoviewnowbutitwasunknownbeforewhileaninventionissomethingcreatedordesignedbypeople,whichispletelynewnotonlynowbutinthepast.

Well,fromthesepictureswecanseethatthereliesdifferencesbetweenadiscoveryandaninvention.Therearecertainrulesorquestionsyoushouldpayattentiontowhiledistinguishingthem.Diditexistinthepast?

Isitcreatedordevelopedbypeople?

Aninventionissomethingthatiscreatedbyahumanbeing,suchasthelightningrod.Tothecontrary,adiscoverymerelymakesknownsomethingthatalreadyexistedinnature,suchasthediscoveryontheNewContinentbyColumbia.OK.Let’sgoonwithsomeotherquestionsofthispart.Youmaytalkwithyourpartnerfirstbeforewehaveacheckfiveminuteslater.

Whatmoderninventionsdoyouknow?

Describethemtoyourpartnerandhowusefultheyareinlifetoday.

Adidas1isthethinkingshoeswithabuilt-inmicroprocessorthatdecideshowsoftorfirmthewearerneedsthesupport.IthasbeenchosenbyPopularSciencemagazineasthebestrecreationinventionofxx.Itisveryfortabletowearitalldaywithoutworryingaboutyourtoesbeinghurtandyoucanadjusttheheightandstiffnessaccordingtoyourdemandswheneveryouwantandwhereveryougo.Thusitisaverypracticalchoiceforboththeyoungandtheoldwhenhavingexcitingsportsoutdoorsorrestingathomeduringholidays.

Cameraphoneshaveopenedupanewwaytomunicate.Becausemanyofthemlooklikeregularcellphones,youcansnappicturesasdiscreetlyasanyspyand,withthepushofafewbuttons,popthemintoane-mailoruploadthemtotheWebinlessthanaminute.Nowiresorputerhookupsnecessary.Tobesure,mostcameraphonesenduptakingpicturesoffriends,family,babiesandpets.ButtheyhavealsobeenusedtosnappicturesofVIPsatprivateparties,copyrecipesfromcookbooksatbookstoresandevendocumentcrimesinprogress.Butwithanestimated80millioncameraphonessoldinxx,6millionintheU.S.alone—thecatmayalreadybeoutofthecamerabag.Likeitornot,thesecameraphoneshavebeenverypopularandwidelyusedbypeopleeventoday.

AkindofrobotheartcalledAbioCorwasinventedinxx.OnJuly2,xx,the59-year-oldgrandfatherandretiredlibrarianRobertToolsbecamethefirsthumantogetone.It’sbeenlongsincetheoperation,andTools’newheartisstillbeating.Hecanwalkacityblockwithoutstoppingandhe’sevenmakingplansforthefuture.Thoughnoteverybodyneedsanewheart,hundredsofthousandseventuallymay.Norwillanartificialheartridtheworldofsicknessorpovertyorterror.Butsometimesitreallyhelps.

Verygood!

Iamgladtoseethatallofyouhaveknownsomanymoderninventionsbothathomeandabroadandyouhavethoughtalotaboutthem.It’scertainthatmoderndiscoveriesandinventionsdohavegreateffectsonpeople’slifeandcanalwaysrepresenttheadvancedscienceandtechnology,soyoushouldlearntodistinguishthemandmakegooduseofthem.

StepⅡTalking

Supposeyouareworkingforamobilepany.Itisyourjobtosuggestnewwaysofdevelopingamobile.Inpairsdiscusssomenewapplicationsofamobile.Makealistoftheonesyoulikeandthatseemthemostuseful.Chooseoneyoubothlikeandthinkwillbepopularwithotherpeople.Nowworkingroupsoffourtodiscussthequestion.

Isuggestthenewapplicationsofmobileshouldbe:

portableentertainmentplayers,cameras,member-shipandloyaltycards,guidebooks,maps,tickets,watches,anddevicesforaccessingeverythingfromnewstocorporatedatabases.Amongthem,weliketheapplicationsofdevicesforaccessingeverythingfromnewstocorporatedatabases.Weboththinktheyareusefulandwillsoonbepopularwithothersinthenearfuturebecausetheabilitywillenableawholeclassofworkerstorelylessontheirmemoryandmoreontheirpany’sandevenworld’sknowledgemaintenance,sales,construction,transportation,taxicabdrivers,andmanyotherworkersspendagreatdealoftimefromoffices.Thus,whentheyneedinformation,theymusteitherhaveitintheirheadsorstopwhattheyaredoingandmakeaphonecall.

Ithinkthenewmobilescanbedevelopedbetterwith4Gtolistentotheradio,watchTV,playgames,doshopping,chatontheQQ,,surftheinternet,controltheelectricalequipmentathomeinthedistance,giveoffharmlessraysandbeusedasputerswithspecialoperatingsystemswhichcandobusiness,havefunandworkasintelligentP4puters.Amongthem,welikethenewapplicationofsurfingtheinternetanddoingshoppingandweboththinktheyareusefulandwillsoonbepopularamongyoungstersbecauseitisveryconvenientforpeopletofindvarioususefulinformationwheneverandwhereverpossible.Astherearedifferentkindsofgoodstochoosefromonlineandit’sveryfunnyandexcitingtomakechoicesandbuywhatweneedatareasonablepricewithoutgoingoutandbargainwithsellersinthemarkets.

Verygood.Nowgettogetherwithanotherpairtodiscusswhetheryoursuggestionisagoodone.Makeacaseforyouridea.Lettheotherpairevaluateit.Thenswapsothatyouevaluatetheiridea.Decidewhichideayoulikebetterandpreparetoexplainit.Thenpresentittotheclass.

Ithinkthefirstclassmate’sexpectationthatthemobilephonescandosomuch,maybemorethantheycanoffer.Themobilephonesusuallyhavelimitedsizeandcapacity.SoIthinkitwilltaketimebeforethemobilesaredesignedtomeethisneeds.

Ithinkit’spracticalandmeaningfulforthesecondclassmatetodevelopthemobilesinthatway.Thoughithasbeenusedinsomewaysbutwecandobetterbecauseeverydaywehavemuchinformationtolookforanddifferenttypesofthingstodoandthesmartmobilecanmakeitmoreconvenientforustoachieveourgoalsinlife.

Now,I’dlikeyoutodiscussingroupsandtrytotelltheothersaboutyourideasandtheotherswhoactastheleadersofthepanymayasksomequestionsforhimorhertoanswer.ThenI’dlikesomeofyoutoreportyourgroupwork.

Fiveminuteslater.

（L=Leaderofthepany）

S:

Ithinkthenewmobilescanbedevelopedbetterwith4GtowatchTVanddoshoppingontheinternet.

L1:

Well,haveyouthoughtaboutthecostofthiskindofnewmobilewhichhasalargecapacityandsuchfunctions?

Yes.I’llmakeagoodsurveyoftheinternationalelectronicmarketsinadvanceandtrytoreducethecostasmuchaspossible.

L2:

Areyousureofthesecuritymeasuresofusingthesemobiles,especiallywhentheyareusedtoshopontheinternet?

Sure.I’llkeepthenewmobilesdesignedsoinorderthattheywillgivewarningmessageswheneverthereismisleadinginformationordishonestyinsellingandbuyingthingsontheinternet.

L3: