2019版一轮优化探究英语（人教版）（话题部分）练习：话题15 选修六 Unit 2 Poems Word版含答案

《2019版一轮优化探究英语（人教版）（话题部分）练习：话题15 选修六 Unit 2 Poems Word版含答案》由会员上传分享，免费在线阅读，更多相关内容在教育资源-天天文库。

1、Ⅰ.阅读理解ADoPeru'spotatoeshavetherightstuff?That'sthequestionscientistswillbeaskinginLimanextmonth,whenaselectionofpotatoeswillbeginundergoingteststodeterminewhethertheyarefittogrowonMars.NASA,theUSspaceagency,isconductingthepioneeringexperimenttogetherwithLima'sInternationalPotatoCenter.Theywillculti

2、vateahundredselectedvarietiesinMarslikeconditionsthatcouldeventuallypavethewayforbuildingadomeontheRedPlanetforfarmingthevegetable.Oftheselectedcandidates,40arenativetotheAndesMountains,conditionedtogrowindifferentecologicalzones,canstandsuddenclimatechangesandreproduceinrockyareas.Theother60areimp

3、rovedvarieties,abletosurvivewithlittlewaterandsalt.Theyarealsoimmunetoviruses.Thosethatpassthetestsmustmeetafinalcriterion—theymustbeablenotonlytogrowwellonMarsbutalsoreproduceinlargequantities.“We'realmost100percentcertainthatmanyoftheselectedpotatoeswillpassthetests，”saidJulioValdiviaSilva,aPeruv

4、ianNASAastrobiologist(太空生物学家)whoistakingpartintheambitiousproject.Thescientistsplantotransport100kilosofsoiltoalabinLimathatwillsimulatethecomplexMartianatmosphere—whichcontainsmostlycarbondioxide—andexposeittoextremeultraviolet(紫外线的)radiation.Ifthevarietiesselectedfornextmonth'sexperimentdon'tadap

5、ttothedesertsoil,theresearcherswillintroducenutrients,whichwillbeprovidedbyradiation.Infutureyears,NASAplanstobuildaMarsresearchcenterinthePeruviandesert.ItwouldcreateaperfectcopyoftheMartianlandscapeandatmosphereforfutureresearchintospacefarmingthatcouldservemannedmissionstoMarsandotherplanetsinth

6、esolarsystem.[语篇解读]　本文为一篇新闻报道.美国国家航空航天局(NASA)将与国际马铃薯研究中心联手，进行一项开创性实验.1．Whatisthebesttitleofthepassage?A．TransportpotatoestoPeruB．DeterminethevarietiesofpotatoesinPeruC．NASAistobuildaMarsresearchcenterinPeruD．NASAistosimulategrowingpotatoesonMarsinPeru解析:标题归纳题.通读文章可知美国国家航空航天局(NASA)计划与国际马铃薯研究中心联手，进行一

7、项开创性实验，即在秘鲁培育可在火星上种植的土豆.故答案为D项.答案:D2．Accordingtothethirdparagraph,whichofthefollowingstatementsisTRUE?A．Fortykindsofpotatoescansurvivewithlittlewaterandsalt.B．ManytypesofpotatoestobeplantedonMarsaredevelope