阅读理解（说明文）AWeoftenhearpeopletalkingaboutagenerationgap(代沟).Thenameisnew,buttheideaisold.Youngpeopleandtheirparentsdon’tunderstandeachother.Theworldhasalwayskeptchanging.DuringthesecondcenturyafterChristawisemansaid,“Burymeonmyfacebecauseinalittlewhileeverythingwillbeturnedupsidedown.”Therehasalwaysbeenagapbetweengenerations,butmorepeopletalkaboutitnow.OldMr.Ellisthinksheunderstandswhathashappened.“WhenIwasaboy,Ithoughttheworldwasabeautifulplace.Mylifewasverypleasant.ButwhenIwasolder,Ilearnedaboutpeoplewhoweretreatedbadly,peoplewhodidn’thaveenoughtoeat.Iwantedtohelpthem,andImarriedagirlwhowantedtohelpthem,too.Wewenttomeetingsandtalkedalot,butitdidn’tseemtomakemuchdifference.”“Ourchildrengrewupinaworldatwar.Theydidn’tknowwhenthefightingwouldstop.Theywantedtheirchildrentohaveniceclothesandtoys.Theydidn’twanttothinkaboutthefuture.Theythoughtnothingcouldbedoneaboutit.”“NowIhavegrandchildren,andtheyhavetheirownideas.Theyaretryingtomaketheworldbetter.Theyaretryingtohelpotherpeople.They’remakingpeoplelistentothem.Iamproudoftheirgeneration.”1.Thewisemanmentionedinthetexttoldpeopletoburyhimonhisfacesothatwheneverythingisturnedupsidedownhewill_____.A.lieonhisstomachB.lieonhisbackC.standquietlyD.sitinpeace2.WhichgenerationdidNOTwanttodoanythingtomaketheworldabetterone?A.Mr.Ellis’generationB.Hischildren’sgenerationC.Hisgrandchildren’sgenerationD.Noneoftheabove.3.Whichgenerationis/wasmoreefficientinmakingtheworldbetterone?A.Mr.Ellis’generation.B.Hischildren’sgeneration.C.Hisgrandchildren’sgeneration.D.Noneoftheabove.4.Whatisthewriter’sattitudetowardsthegenerationgap?A.Unacceptable.B.Awful.C.Funny.D.Common.BSatellitesareanimportantpartofourordinarylives．Forexample,theinformationforweatherforecastsissentbysatellite．SomesatelliteshavecameraswhichtakephotographsoftheEarthtoshowhowcloudsaremoving．Satellitesarealsousedtoconnectourinternationalphonecalls．ComputerconnectionsoftheWorldWideWebandInternetalsousesatellites.ManyofourTVprogramscometoUSthroughsatellites．Airplanepilotsalsosometimesuseasatellitetohelpthemfindtheirexactlocation．Weusesatellitestosendtelevisionpicturesfromonepartoftheworldtoanother．Theyareusually35，880kilometersabovetheequator．Sometimeswecanseeasatelliteintheskyanditseemstostayinthesameplace．Thisisbecauseitismovingaroundtheworldat11，000kilometersanhour—exactlythesamespeedthattheearthrotates．AsatellitemustorbittheEarth1withitsantennae(天线)facingtheearth．Sometimes,itmovesawayfromitsorbit，Sotherearelittlerocketsonitwhichareusedtoputthesatellitebackintherightposition．Thisusuallyhappensabouteveryfiveorsixdays．Spaceisnotempty!Everyweek,moreandmoresatellitesaresentintospacetoorbittheEarth．Asatelliteusuallyworksforabout10-12years．SatelliteswhicharebrokenaresometimesrepairedbyastronautsorsometimesbroughtbacktoEarthtoberepaired．Often，veryoldorbrokensatellitesareleftinspacetoorbittheEarthforaverylongtime．Thisisveryseriousbecausesomesatellitesusenuclearpowerandtheycancrashintoeachother．1．WhichofthefollowingisNOTdonebysatellitesaccordingtothepassage?A．Sendinginformationforweatherforecast．B．TakingphotographsoftheEarth．C．SendingTVpictures．D．Providingfoodforairplanepilots．2．What’sthespeedtheearthrotatesat?A．35,880kilometersperhour．B．335,880kilometersperhour．C．11,000kilometersperhour．D．110,000kilometersperhour3．Wh...
