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1、八年级上册MorepracticeUnit1Australia'sbigattractionsAustraliaisaverybigcountry.Italsohasmanybigattractions.TheBigBananaThebigbananaisinCoffsHarbour.Itwasmadein1964byJohnLandy.Landywantedsomethingtomakepeoplecometohisfruitshop,sohebuilttheBigBanana.LandyTheideaw
2、orked.ManypeoplevisitedhisfruitshopandtookpicturesoftheBigBanana.SoonpeoplealloverAustraliabeganmakingbigthings.TheBigMerinoThebigMerinoisinthecityofGoulburn.Merinosareatypeofsheep.Theycanliveindryweather.SomeplacesinAustraliaareverydry,sothesesheeparevery
3、importanttothefarmersthere.InsidetheBigMerino,thereisasmallmuseumaboutthehistoryofwoolinAustralia.VisitorscanalsoclimbuptotheBigMerino'sheadandlookattheviewthroughitseyes.Unit2CountingbeforenumbersBeforetheinventionofwrittennumbers,peopleusedmanydifferentw
4、aystocountthings.Atfirst,peopleusedtheirfingers,andeventheirtoes.However,theycouldonlycountsmallnumbersinthisway.Afterthat,theybegantomakesmallmarksonsticksandbones.Thishelpedthemcountbiggernumbers.Theyusedthemtocountthingslikethedaysofthemonth,theamountof
5、foodandthenumberofanimalstheyhad.Thenpeoplebegantousetokensmadefromclayorsmallstones.Thishelpedthemcountevenbiggernumbers.Theyoftenputthetokensonpiecesofstringsothattheycouldcarrythemaroundeasily.Thisdevelopedintotoolsliketheabacus.Finally,peoplebegantodev
6、elopsystemsofwrittenmarkstoshowdifferentnumbers,andthisledtotheHindu-Arabicsystem(0-9).Wearestillusingthissystemtoday.第3页共3页Unit3ComputergameproblemsGoodafternoon,parentsandteachers.Thankyouforattendingthismeeting.Lastweekend,oneofourstudentswenttohospital
7、.ThestudentplayedcomputergamesontheInternetalldaySaturdaywithoutstoppingtodrink,eatorsleep.Finally,hebecameveryill.Somestudentsplaycomputergamesfortoolong.Thisisaseriousproblem.Inthepast,studentsusedtoplayoutsidemoreoften,butnowtheyspendmoretimeinfrontofco
8、mputers.Thisisbadfortheirhealth.Tomorrowwe'llhavesomeexpertsheretotalktothestudentsaboutthebadeffectsofplayingcomputergames.They'llalsogivesomeadviceonhowtousecomputersforstudying.Ihopewecanallworktogethertos