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1阅读理解AFromfaroutinspace,Earthlookslikeablueball.Sincewatercoversthree-fourthsoftheEarth’ssurface,blueisthecolorweseemost.Thecontinentslookbrown,likesmallislandsfloatinginthehuge,bluesea.WhitecloudscoveraroundtheEarthlikealightblanket.TheEarthisshapedlikeasphere,oraball.Itis25,000milesaround!Itwouldtakemorethanayeartowalkaroundthewholeplanet.Aspaceshipcanflyaroundthewidestpartofthesphereinonly90minutes.EventhoughspaceshipshavetraveledtotheMoon,peoplecannotvisittheMoonwithoutspecialsuits.TheMoonhasnoairorwater.Plantsandanimalscan’tlivethereeither.AstronautsfirstlandedontheMoonin1969.Afterthat,thereweresixmoretripstotheMoon.TheybroughtbackMoonrocks,whichscientistsarestillstudying.Thereareholes,orcraters,allovertheMoon’ssurface.Scientistsbelievethatmeteorites（陨石）smashedintotheMoonmillionsofyearsagoandformedthecraters.TheSunisthecloseststartoEarth.Astarisahotballofburninggas.TheSunlooksverybigbecauseitissoclose.ButtheSunisjustamedium-sizedstar.Billionsoffar-awaystarsaremuchbiggerthanourSun.TheburninggasesfromtheSunaresohotthattheywarmtheEarthfrom93millionmilesaway!EventhoughtheSunisalwaysshining,thenighthereonEarthisdark.That’sbecausetheEarthrotates,orturnsaround,every24hours.Duringtheday,theEarthfacestheSun.Thenweseelight.Duringthenight,theEarthturnsawayfromtheSun.Thenitfacesthedarknessofspace.EachdaywelearnmoreabouttheEarth,theMoonandtheSun.56.WhenwelookattheEarthfromouterspace,thecolorweseemostisbluebecause________.A.mostoftheEarthiscoveredinlandB.theSun’sraysmaketheEarthlookblueC.mostoftheEarthiscoveredinwaterD.cloudswraparoundtheEarth57.What’sthemeaningoftheunderlinedword“smashed”inthesecondparagraph?A.crashedB.madeC.brokeD.got58.WhatcausesdaylightonEarth?A.ThefullMooncausesdaylight.B.DaylightiscausedbytheEarthfacingawayfromtheSun.C.TheheatoftheSun’srayscausesdaylight.D.DaylightiscausedbytheEarthfacingtowardtheSun.59.WhichofthefollowingsentencesBESTdescribestheSun?A.TheSunlookssmallbecauseitissofarfromEarth.B.TheSunisaballofburninggasesthatgivestheEarthheatandlight.C.TheSunisasmallstar.D.TheSunisnotashotasitlooks.60.Whatisthemainideaofthetext?A.Plantsandanimalscan’tliveontheMoon.B.WithouttheSunwewouldhavenoheatorlight.C.WeknowalotabouttheEarth,Moon,andSun,butthereisstillmoretolearn.2D.Fromouterspace,theEarthlookstiny,eventhoughitisthousandsofmilesaround.BSacagaweawasbornsometimearound1790.SheisbestknownforherroleinhelpingtheLewisandClarkexpedition（远征）.SheandherhusbandwereguidesfromtheGreatPlainstothePacificOceanandback.SacagaweawastakenawayfromherShoshonevillagebyHidatsaIndianswhenshewas12yearsold.Andshewasimmediatelysoldintoslavery.ShewasthensoldtoaFrenchhunterbythenameofToussaintCharbonneau.ThepairbecamemarriedandhadasonnamedJean-Baptiste.AlthoughtherearedifferentopinionsconcerninghowimportantSacagaweawastotheLewisandClarkexpedition,shedidserveastheinterpreter（口译员）andnegotiatortotheShoshonetribe（部落）thatwasledbyherbrotherCameahwait.Shehelpedthemgetbasicsuppliesandhorseswhileshecarriedherbabyonherback.Besides,Sacagaweahelpedrecognizeedible(可食的)plantsandherbsandpreventedunfriendlyrelationswithothertribessimplybybeingwiththeexpedition.Shewasevenmoreimportantonthereturntripbecauseshewasfamiliarwiththeareasinwhichtheyweretravelingandwasabletoguidetheexpeditionbacksafely.LewisandClarkreceivedcreditfordiscoveringhundredsofanimalsandplantsthatSacagaweahadprobablyseenforyears.Althoughshereceivednopaymentforherhelp,herhusbandwasrewardedwithcashandland.Sixyearsafterthejourney,SacagaweadiedaftergivingbirthtoherdaughterLisette.WilliamClarkraisedbothofherchildren,buttherearenorecordsofLisette.Tothisday,therearenoreliablepicturesordrawingsofSacagawea.Recently,theUnitedStatesgovernmentcarvedherimageonthenewonedollarcoin.SacagaweaisburiedinLander,Wyoming.61.Sacagaweawasborna___________.A.memberoftheShoshonetribeB.slaveC.memberoftheHidatsatribeD.memberoftheLewisandClarkexpedition62.Whichquestionisansweredinthesecondparagraph?A.WhatisSacagaweabestknownfor?B.HowimportantwasSacagaweaonthereturntrip?C.HowimportantwasSacagaweatotheLewisandClarkexpedition?D.WhatwasthenameofSacagawea'sson?63.WhatdidSacagaweadoasanegotiator?A.Shehelpedtranslatelanguagetohelpincommunication.B.Shemadetravelplans.C.Shedecidedwhatplantsareedibleandwhicharenot.D.Shemadedealsandagreementswithothertribes.64.WhichofthefollowingisNOTtrueaboutSacagawea?A.Sheishonoredona$1.00U.S.coin.B.TherearenorecordsofherdaughterLisette.C.ShehadprobablyseenfewornoneoftheanimalsLewisandClarkweregivencreditfordiscovering.D.Therearenoknownpicturesofher.65.Onthewhole,Sacagawea'slifecouldbedescribedas____________.3A.longB.happyC.simpleD.unluckyCImaginethissituation.Youpassagroupofpeople.Thepeoplearetalkingtoeachother.Youcannothearwhattheyaresaying.Butsuddenlytheystartlaughing.Whatwouldyouthink?Wouldyouthinktheywerelaughingatsomethingfunnythatoneofthemsaid?Or--behonestwithyourself--wouldyouthinktheywerelaughingatyou?Yes,you.Beinglaughedatisacommonfear.Butamajorstudypublishedin2009foundthatthisfearisnotthesamearoundtheworld.Itisdifferentfromculturetoculture.PeopleinFinlandwerethe