Everyone’s language课件2.ppt

Chapter4NumbersRevision,Rivisionofthewords,abacus,brain,calculator,lightning,1._:almost2._:correctandtrue3._:strong4._:oforlikepeople,notanimals5._:ontheothersideinagame,fight,etc.6._:agroupofthingsthatworktogether7._:growbiggerorstronger;becomebetter8._:giveorderstoacomputer,nearly,accurate,powerful,human,against,Sayandspellthewordsaccordingtothemeanings,system,develop,program,9._:usenumberstofindanswers,A_isa_machine.Ithelpspeopleto_fasterandmoreaccuratelybecauseitcandoadifficult_inaflash.,calculator,calculating,calculate,calculation,calculate,calculate(v.)计算,calculation(n.)计算,calculator(n.)计算器,calculating(adj.)计算的,10._:makeforthefirsttime,BenjaminFranklinwasafamous_.He_thelightningrod（避雷针).Itisagreat_.,inventor,invented,invention,invent(v.)发明,inventor(n.)发明家,invention(n.)发明,invent,11._:thataregoingtobementionednext,Canyouanswerthe_questions?_meplease.Illshowyoutheway.,following,Follow,following,following(adj.)下列的,follow(v.)跟随,12._:notdead,Canall_things_forseveraldayswithoutfood?13._:verysurprisingWefelt_whenwereadthe_story.,living,live,amazed,amazing,living(adj.)活着的,live(v.)生活,living,amazing,amazing(adj.)令人惊奇的,amazed(adj.)感到惊奇的,RevisionofthephrasesSaythephrasesaccordingtothemeanings,1._:long,longago2._:notlessthan3._:inaveryshorttime4._:notinthesameway5._:inalloneslife6._:workouttheproblem,inancienttimes,atleast,inaflash,indifferentways,inoneswholelifetime,solvetheproblem,1.Wecanusewater_,suchaswashingclothesorcookingfood.2.LiBaiwasagreatpoetwholived_.3.Ittookusonehourto_,indifferentways,inancienttimes,solvetheproblem,atleastinaflashinancienttimesindifferentwayssolvetheprobleminoneswholelifetime,4.Yourteacherlooksold.Hemustbe_50yearsold.5.MyfatherlivedinChina_.6.Thecomputerfinishedthecalculation_.,atleast,inhiswholelifetime,inaflash,Keepthesamemeaningofeachsentence,1.Ispenttwodaysdoingthisjob.It_metwodays_dothisjob.2.Heisstrong.Hecancarrytheheavysuitcase.Heis_strong_hecancarrytheheavysuitcase.Heisstrong_carrytheheavysuitcase.,took,to,so,that,enough,to,Revisionofthesentencestructures,3.Thecoatisexpensive.Hecantbuyit.Thecoatis_expensive_hecantbuyit.Thecoatis_expensiveforhim_buy.Thecoatisnot_forhimtobuy.,so,that,cheap,enough,too,to,Readthetext,RevisionofthePassageAnswerthequestionsaboutthetext,Whatdidpeoplewriteinmanydifferentways?2.Inwhatwaydidpeoplecount?3.Whoinventedthezero?4.Whywasthezeroaveryimportantinvention?,Peoplewrotenumbersinmanydifferentways.,Peoplecountedintens.,TheIndiansinventedthezero.,Becauseitmadeiteasiertowritebignumbersandtocalculate.,5.Whichwasoneofthefirstcalculatingmachines?6.Whydopeoplestilluseabacusestoday?7.Whatcanamodernelectroniccalculatordo?8.Whydowesaycomputersareverypowerful?,Oneofthefirstcalculatingmachineswasanabacus.,Becausetheyarefastandaccurate.,Itcanadd,subtract,multiplyanddivide.Itcanalsocalculatepercentagesandsquareroots.,Becauseitcandoacalculationthatyoucouldnotdoinyourwholelifetimeinaflash.,9.HowlongdidShakuntalasbraintaketofindtheanswer?,Shakuntalasbraintookfiftysecondstofindtheanswer.,Fillintheblanksaccordingtothepassage,Everyoneknowstheinternational_ofnumbers.Inancienttimes,numberswerewrittenin_ways,butcountingwasnearlyalwaysin_.Everyoneusesthenumber_1to9pluszero.ThesystemwasinventedbytheIndians._makesiteasiertowritebignumbersandto_.,language,tens,system,Zero,calculate,different,Therearethreecalculatingmachines,theabacus,themodern_calculatorandthecomputer.Whichismorepowerful,thecomputerorthehuman_?Therewasacompetitionbetweenanamazingladywhoisfrom_andapowerfulcomputer.However,theladywon.Herbrain_lesstimetofindtheanswer,like_.Computerscantdoanythingbythemselves.Someonehadtofirst_thecomputer.,electronic,brain,India,took,lightning,program,Whatiseachpartmainlyabout?,P1:differentwaysofwritingancientnumbers,P2:thesystemofnumbers,P3:threecalculatingmachines,P4:apowerfullivingcomputer,