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1、甘肃省白银市2019届高三英语模拟试题(一)第一部分:阅读理解(共两节,满分40分)第一节:(共15小题;每小题2分,满分30分)阅读下列短文,从每题所给的四个选项(A、B、C和D)中,选出最佳选项,并在答题卡上将该项涂黑。ABEINGanastronautsoundscool,doesn'tit?Inspace,theygettodosomeprettyamazingthings,likefloatinginzerogravity. However,therearealsoplentyofthingsth
2、atastronautscan'tdobecauseoftheirweightlessenvironment,andthat'sverysad.What'sworse,theycan'tevenlettheirsadnessshow–becauseit'simpossibletocryinzerogravity. Ofcourse,astronautscanstillproducetears.Butcryingismuchmoredifficultinspace,reportedTheAtlanticinJ
3、anuary.Withoutgravity,tearsdon'tflowdownwardoutoftheeyesliketheydohereonEarth.Thismeansthatwhenyoucryinspace,yourtearshavenowheretogo—theyjuststicktoyoureyes. InMay2011,astronautAndrewFeustelexperiencedthisduringoneofhisspacewalks."Tears,"hesaid,"don'tfall
4、offofyoureye...Theyjustkindofstaythere." Besidesmakingyourvisionunclear,thiscanalsocausephysicalpain.BackonEarth,tearsaresupposedtobringcomforttotheeyes.Butthat'snotthecaseinspace.Thespaceenvironmentdriesoutastronauts'eyes,andwhentearssuddenlywettheeyes,it
5、cancausepainratherthancomfort."Myrighteyeispainfullikecrazy."Feusteltoldhisteammateduringthewalk. Sincegravitydoesn'tworkinspace,astronautsneedsomeextrahelptogetridofthetears.Feustelchosetorubhiseyesagainsthishelmettowipethetearsaway.Anotherchoiceistojustw
6、ait—"Whenthetearsgetbigenoughtheysimplybreakfreeoftheeyeandfloataround,"astronautRonParisetoldTheAtlantic. Therearelotsofsmallthings—thingslikecrying–thatwearesousedtoonEarth.Weusuallytakethemforgranted,untiltheybecomeaprobleminatotallydifferentenvironment
7、,likespace.There,astronautscan'ttalktoeachotherdirectly.Theyalsocan'teatordrinkinnormalways.Theycan'tevenburp(打嗝),becausethereisnogravitytoholdthefooddownintheirstomach.Iftheydoburp,theyjustendupthrowingup(呕吐)everythingintheirstomach,accordingtotheUKNational
8、SpaceCenter. Thus,perhapsit'sonlyspaceexplorerswhocanhonestlysay:"Gravity,you'rethebest."1.Whatcanweconcludefromparagraphs2and3? A.Astronautsareunabletofeelsadinspace. B.Astronautsproducefew