人教版高中英语第8册第3单元listening and speaking课件.ppt

,人教课标版高二选修8Unit3,1.Listening,ListeningonPage62,Readthesequestionsbeforelisteninganddiscusstheminpairs.,1.Whatfunctionsarealreadyincludedonamobilephone?2.Whichonesdoyoufinduseful?3.Whatelsedoyouexpectamobilephonetodoforyou?,amobilethat“think”amobilethatspendsyourmoneyamobilethatcanteachyouEnglishamobilethatplansyourholiday,Listentothetapeandtickthedescriptionsyouhaveheard.,amobilethatdoesvideotapingamobilethatisacomputeramobilethatwakesyouupamobilethatordersyourfood,Listentothetapeagainandanswerthesequestions.,WhichmobiledoesRuththinkshewillbuyandwhy?Ruthwantstobuythemobilethatturnsitselfonwhenitreceivesimportantcalls.Shemissedthreeyesterdaywhenhermobilewasswitched/turnedoff.,2.Whatextraapplicationsdomobileshavenow?Mobilescanvideotapeandactasacomputernow.,3.Whatextraapplicationswilltheyhavewiththe3Gmobiles?Theywillbeabletoplanholidays,bookairtickets,hotelandanappropriateplacetostay.Theywillauthorizepayingforthemtoo.,4.WhyisRuthworried?Ruthisworriedbecauseitmightspendhermoney.,5.Whatadvantagesdothe3Gmobilesoffer?Theadvantagesarethatithelpspeoplewhoarebusyatworktoordergoodsatthecheapestpriceorbookholidays,airtickets,etc.,6.Whatdoyouthinkmightgowrong?Themobilemayspendmoneyunwiselyorspendmorethanapersoncanafford.Youmayforgetthespendingandnotincludeitinyouraccountsoryourpersonalincome.,2.Speakingtask,LookattheseChineseinventionsonP68inpairsanddiscusswhatyouknowaboutthem.,Thinkaboutwhattheywereusedforandwhentheywereinvented.Collecttheinformationbydoingsomeresearch.Fillinthechartandpreparetotalkaboutoneoftheinventionstotheclass.,1Anabacusisusedtocalculatemathematicalproblemsincludingequations.Itismoreefficientthanusingthebrainalone.,ItwasneverusedintheWest,butitisclosestinfunctiontoamodernpersonalcalculator.,2TheprintingpresswasusedtoprintmessagesfromtheEmperortothepeople.Ithelpedtheefficiencyofgovernment.,Gutenburg(1398-1468)begantoprintbooksonhispressabout1450ADinGermany.,3Thesouthpointerwasusedtofindthemostharmoniouspositiontoplacenewbuildings.ItseemspossiblethatitdatesbacktotheQinDynasty.Itwasthefirstapplicationofmagnetisminpeopleslives.,ThenavigationalcompassappearedinEuropeinthe12thor13thcenturies.ThisissimilartothetimewhenZhengHeuseditonhisvoyagestoAfrica.,YouhavebeenaskedtowriteanentryforanencyclopediaaboutoneofthesethreeChineseinventions.Chooseoneandpreparetowriteyourreport.Youwillincludeaphotographordrawing,butyoumustexplainsomeimportantpointsinyourreport:,Writing,adescriptionoftheobjectwhatitwasusedforhowitwasusedwhenitwasinvented,Theabacuswasoriginallyofwood.Itisarectangularshapewithbeadsstrungonit.Theshapeisunevenlydividedsothattherearemorebeadsinonepartthantheother.Touseanabacusyouneedtotakelessons.Thesmallerpartwithfewer,Asampleversion:,Beadsrepresentsthehighernumbersandthelargerpartwithmorebeadsrepresentsthesmallernumbers.Bymanipulatingthesebeadsyoucandoaseriesofdifferentcalculations.Anabacuscanbeusedtoaddfiguresquicklyordoaseriesofcomplicated,Mathematicalproblems.Peoplewhoareskilledwithitcanworkasfastasapersonusingamoderncalculator.TheabacuswasingeneralusefromearliesttimesinC