24AmazingthingsNumbersReadingBeforeyoureadA0ThinkandsayWearegoingtoreadaboutaspecialkindoflanguagethateveryonecanspeak

AnInternationalLanguage/'l??ɡw??/Whatdoes‘language’mean?Whatkindoflanguagedoyouknow?BeforeyoureadA1Thinkaboutwhatthesenumbersstandfor(代表).20009240411913

Tocalculatetheareaofacircle/?k?lkjule?t/Whatdoweuseittodo?/??m??d??nsi/BeforeyoureadA2Readthetitleandtheintroduction,answerthequestions.

Howmanylanguagesdoyouknow?Everyoneknowsatleasttwo—hisorherownlanguageandtheinternationallanguageofnumbers.Whatisthetitle?Whatwillthewriterprobablytalkaboutinthepassage?Numbers:Everyone'slanguageWhileyoureadB0Scan(掃)thesubheadingsandpicturesonP57,thenanswerWhatisthepassagemainlyabout?The_________and_________ofnumbers.Howmanypartsarethereinthispassage?Whatarethey?history(howtospeakthe)language4WhileyoureadB1Read“Ancientnumbers”,tellthemeaningsofthepictureInancienttimes,peoplewrotenumbersinmanydifferentways,asthesepicturesofthenumber6show.However,theynearlyallcountedinthesameway—intens.AncientnumbersWhymentionthesefour?ancientcivilizationsHowdidmostancientpeoplecount?WhileyoureadB1Read“Ancientnumbers”andanswerthequestionsInancienttimes,peoplewrotenumbersinmanydifferentways,asthesepicturesofthenumber6show.However,theynearlyallcountedinthesameway—intens.AncientnumbersWhymentionthesefour?ancientcivilizationsWhatisthepicturetryingtotellus?Howdidmostancientpeoplecount?WhileyoureadB1Read“Ancientnumbers”andanswerthequestionsCanyouthinkofanyexceptions?Isthereanycivilizationthatdoesn'tcountintens?Whydidmostancientpeoplecountintens?Whatdoesthisparagraphtellus?Ancientpeoplewritethenumbersindifferentwaysbutcounttheminthesamewayhavedifferentnumberwritingsystemsbutthesamecountingsystem./?s?st?m/agroupofthingsthatworktogetherZeroMostofususethesystemofnumberswithnumbersfrom1to9and0(zero).Withthesetennumbers,wecanwriteanynumberfromthebiggesttothesmallest.TheIndiansfirstinventedanddevelopedthe1to9systemofnumbers.Theytheninventedthezero.Thiswasaveryimportantinventionbecauseitmadeiteasiertowritebignumbersandtocalculate.WhileyoureadB2Read“Zero”andanswerthequestions

What’sthesystemofnumbersmostpeopleusetoday?Whoplayedanimportantroleincreatingthesystem?Whywas"zero”veryimportant?WhileyoureadB2Read“Zero”andanswerthequestionsWhatwastheprocess?What’sthesystemofnumbersmostpeopleusetoday?Whoplayedanimportantroleincreatingthesystem?Whywas"zero”veryimportant?Thesystemofnumberswithnumbersfrom1to9and0.TheIndians.Becauseitmadeiteasiertowritebignumbersandtocalculate.Theusageandtheinventorofzero.

Whatdoesthisparttellus?Theyfirstinventedanddevelopedthe1to9systemofnumbersandtheninventedzero/?n?vent//d??vel?p/WhileyoureadB3Read“Calculatingmachines”,listthemachinesandtheiradvantages.CalculatingmachinesWhileyoureadB3Read“Calculatingmachines”,listthemachinesandtheiradvantages.CalculatingmachinesAdvantagesabacus/??b?k?s/electronic

/??lek?tr?n?k/calculator/?k?lkjule?t?(r)/fastandaccuratedoallkindsofcalculations/?k?lkju?le??(?)n/powerful/??kj?r?t/exactlyright;withnomistakes.Inaflash,itcandoacalculationthatyoucouldnotdoinyourwholeliShrne.WhileyoureadB4Findthenumberthawhenitismultiplied23timesbyitself,givesthisanswer:versus(vs.)multiply/'m?lt?pla?/WhileyoureadCompetetiorHowlongittooktogettheanswerWhileyoureadCompetetiorHowlongittooktogettheanswerShakuntalaComputer?fiftyseconds

oneminutelikelightning/?la?tn??/manyhourstoprogram/'pr??ɡr?m/Whatdoyouthinkofherbrain?amazing/??me?z??/Whatcanweconcludefromthispart?0AfteryoureadC0Namethepicturesproperlyandputthemontherightplaceofthelineaccoringtothepassage0AncientnumbersZeroCalculatingmachinesAfteryoureadC0Namethepicturesproperlyandputthemontherightplaceofthelineaccoringtothepassageorigin(起源)developmenttoolAfteryoureadC1Readthefollowingquestionsanddivide.Whichofthequestionsabovehasbeenansweredinthearticle?Whichhasn'tbeenanswered?Whichcanbeinferred(推測)fromthearticle?(ifyoucan,giveyour