广东省六校高三下学期第三次联考英语---精校Word版含答案

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1、www.ks5u.com2018届高三“六校联盟”第三次联考英语试卷共10页，卷面满分120分，折算成135分计入总分。考试用时120分钟。注意事项：1.答题前，先将自己的班级、姓名、试室号、座位号和考号填写在答题卡上。2.选择题的作答：每小题选出答案后，用2B铅笔把答题卡上对应题目的答案标号涂黑。写在试题卷、草稿纸和答题卡的非答题区域均无效。3.非选择题的作答：用黑色签字笔直接答在答题卡上对应的答题区域内。写在试题卷、草稿纸和答题卡的非答题区域均无效。4.考试结束后，请将答题卡上交。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

2、文，从短文后每题所给的A、B、C和D四个选项中，选出最佳选项，并在答题卡上将该项涂黑。AQuestioningtheexistenceofaliensissomethingthatscientistshavedonefordecades.Infact,mostpeopledobelievethataliensexistinsomefashion.Themainnecessitiesforlifearewaterandsomeformofenergysource.Notsurprisingly,therearesomeplanets,exoplanetsandmoonsthat

3、fitthebill.Hereareseveralbestchancesatfindinglifeintheuniverse.◆TRAPPIST-1TRAPPIST-1isaplanetarysystemafewdozenlight-yearsaway,whosediscoverywasannouncedinearly2017.ThissystemconsistsofsevenEarth-likeexoplanetsorbitingan"ultra-cool"star,anditisoneofourshotsatfindingpossiblelifebeyondourowns

4、olarsystem.◆Titan-14-TitanisthelargestmoonofSaturn,thesixthplanetfromourSun.Thismooncouldpotentiallyharborlifebutpossiblynotinthesensethatwethink.Titandoesnotexactlyfitthedescriptionofbeinginatypicalhabitablezone.Titanhaswater,andithasliquid.Itjustdoesn'thaveliquidwater.Thewateronthismoonis

5、completelysolidbecauseoftheextremelycoldtemperature.◆EuropaEuropaisoneofJupiter'smoonshereinourownsolarsystem.Itisanothercandidateduetoitspotentialtoholdliquidwater.Europaisthoughttohaveallthenecessitiesforlifeincludingwater,energysources,andtherightchemicalbuild-up.◆MarsTheRedPlanet,thefou

6、rthfromtheSun,isprobablyoneofthemosttalked-aboutpotentialcandidatesforextraterrestrial(地球外的)lifeandevenforhumancolonization.Despitesomedifferentvoices,findingextraterrestriallifeonMarsreallyisaseriouspossibility.Weknowbynowthatwewon'tfindlittlegreenmenoranyintelligentformoflifethatweunderst

7、and.However,thereisevidencethattherewasandmaystillbemicroscopiclifeonthesmallredplanet.1.Thecommonpointofthesecelestialbodiesisthat_______.A.solidwaterexistsonthemrespectivelyB.lifemightexistoneachofthemC.theyallcontainliquidwaterD.eachofthemhaslivingthi