Therehavebeenmanygreatinventions,thingsthatchangedthewaywelive.Thefirstgreatinventionwasonethatisstillveryimportanttoday-thewheel.Thismadeiteasiertocarryheavythingsandtotravellongdistances.Forhundredsofyearsaft

　　Therehavebeenmanygreatinventions,thingsthatchangedthewaywelive.Thefirstgreatinventionwasonethatisstillveryimportanttoday-thewheel.Thismadeiteasiertocarryheavythingsandtotravellongdistances.

　　Forhundredsofyearsafterthattherewerefewinventionsthathadasmucheffect(影响)asthewheel.Thenintheearly1800’stheworldstartedtochange.Therewaslittleunknownlandleftintheworld.Peopledidn’thavetoexplore(探测)muchanymore.Theybegantoworkinsteadtomakelifebetter.

　　Inthesecondhalfofthe19thcenturymanygreatinventionsweremade.Amongthemwerethecamera,thelightandtheradio.Theseallbecameabigpartofourlifetoday.

　　Thefirstpartofthe20thcenturysawmoregreatinventions.Thehelicopterin1909.Movieswithsoundin1926.Thecomputerin1928.Andjetplanesin1930.Thiswasalsoatimewhenanewmaterialwasfirstmade.Nyloncamein1935.Itchangedthekindofclothespeoplewear.

　　Bythistimemostpeoplehadaverygoodlife,Manhasadesiretoexploreagain,Theworldwasknowntomanbutthestarswerenot.Manbeganlookingforwaystogointospace.Russiamadethefirststep.ThentheUnitedStatestookastep.Sincethenothercountries,includingChinaandJapanmhavemadetheirstepsintospace.

　　In1969mantookhisbiggeststepfromtheearth.Americansfirstwalkedonthemoon.Thisiscertainlyjustabeginningthought.Newinventionswillsomedayallowustodothingswehaveneveryetdreamedof.

　　1.Thispassagetalksmainlyabout________.

　　A.whycarswereveryimportantB.whenlightwasinvented

　　C.whichcountrymadethefirststepintospaceD.howinventionseffectpeople’slife

　　2.Nyloncameoutnearlyatthesametimeas_______.

　　A.radioB.cameraC.jetplanesD.movies

　　3.Whichofthestatementsisnottrue?

　　A.Thewheelwasthefirstgreatinventionthatisstillveryimportanttoday.

　　B.America,Russia,JapanandChinabegantoexplorethestarsbefore1969.

　　C.Intheearly1800’speoplebegantoworkinsteadofexploringmoreunknownlandtomakelifebetter.

　　D.Newinventionwillchangeourlifegreatlyinthefuture.

　　4.Whatdoestheunderlinedwords“adesire”meaninthefifthparagrph?