（新课标）2018高三英语一轮复习 题组层级快练17 unit 2 working the land 新人教版必修4

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1、题组层级快练17Unit2Workingtheland“阅读＋七选五＋完形”组合练(时间：35分钟)Ⅰ.阅读理解阅读下列短文，从每题所给的四个选项(A、B、C和D)中选出最佳选项。(2017·长春模拟)ScientistsinArgentinahavecreatedtheworld’sfirstcowwithtwohumangenesthatwillenableittoproducehumanlikemilk.Geneticengineeringwasusedtointroducethe“mothers’milk”genesintotheanim

2、albeforebirth,accordingtotheNationalInstituteofAgribusinessTechnologyinBuenosAires.Asanadult,theclonedcow“willproducemilkthatissimilartothatofhumans”，whichwillprove“adevelopmentofgreatimportanceforthenutritionofinfants(婴儿)”，saidtheinstitute.“Theclonedcow,namedRositaISA,isthef

3、irstintheworldwithtwohumangenesthatcontaintheproteinspresentinhumanmilk，”saidthestatement.InApril,scientistsinChinapublisheddetailsofresearchshowingthattheyhadcreateddairycowswhichproducedmilkcontainingproteinsfoundinhumanbreastmilk.ButtheArgentineteamsaidtheChineseonlyintrod

4、ucedonehumangene.Whiletheirresearchinvolvedtwo,meaningthemilkwillmore_closely_resemblethatofhumans.“Ourgoalwastoraisethenutritionvalueofcows’milkbyaddingtwohumangenes,whichdogoodtotheimmunesystemofinfants，”saidAdrianMutto,fromtheNationalUniversityofSanMartinwhichworkedwiththe

5、institute.CristinaKirchner,PresidentofArgentina,saidthescientificinstitutemadeallArgentinesproud.Shealsosaidthatshehadrejectedthe“honor”ofhavingthecownamedafterher.“TheycametotellmethatthenameisCristina,butwhatwomanwouldliketohaveacownamedafterher?Itappearedtometobemoreproper

6、tocallitRosita.”1.Whatisthepassagemainlyabout?A.Theimportanceofgeneticengineering.B.Waystoimprovemothers’milk.C.Aclonedcowtoproducehumanlikemilk.D.AdvancedagriculturaltechnologyinArgentina.2.Whichofthefollowingcanbestreplace“morecloselyresemble”inParagraph4?A.havemorevarietie

7、sthanB.bemoresimilartoC.havemorenutritionthanD.bemoredifferentfrom3.WhatcanbeinferredfromCristinaKirchner’sstatements?A.Shewasquitesatisfiedwiththeresearchdonebytheinstitute.B.Sheconsidereditanhonortonamethespecialcow.C.Shefeltitimpropertobenamedafterthecow.D.Sherefusedtogive

8、anametothecowoutofselfrespect.答案与解析【文章大意】　阿根廷国家农业综合科技研究所的科学家们日前宣布，他们