【英语】辽宁省沈阳铁路实验中学2014-2015学年高二下学期期中考试

《【英语】辽宁省沈阳铁路实验中学2014-2015学年高二下学期期中考试》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、沈阳铁路实验中学2014—2015学年度下学期期中考试高二英语时间：100分钟满分：120分第Ⅰ卷（选择题共85分）第二部分阅读理解（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。AInthemovieJurassicPark,scientistsclonedinosaursbyusingtheDNAthatwaspreservedformillionsofyears.However,thereistroublewhenthecloneddinosaursturnoutfierce

2、randsmarterthanexpected.Candinosaursreallybecloned?Theoretically,theycan;allthatwouldberequiredisDNAfromanextinctdinosaurandacurrentlylivingcloselyrelatedspecieswhichwouldactasasurrogatemother(代孕母亲).Infact,thereiscontinuingresearchtoclonetheWoollyMannothbyextracting(提取)theDNAfromfrozenanimals.Actua

3、lly,cloningisaphenomenonthatoccursnaturallyinawidevarietyofspecies.Wheneveryouseeapairofidenticaltwins,theyareexamplesofnature’sclones.Althoughscientistshavebeencloningcertainplantslikethecarrotquitesuccessfullyfordecades,attemptsatcloninganimalshavenotbeenassuccessful.However,theybeganlongbeforeth

4、ebirthofDolly,thesheep—thefirstmammaltobesuccessfullycloned.Cloninghumansdoesgiverisetosomemisgivings,raisinganumberofmoralproblemsinvolved.Infact,thesocialinfluencesofproducinghumansartificiallywerebrilliantlyexploredinthefamousnovelBraveNewWorldbyAldousHuxley,andalsointhemovieTheIsland.Humancloni

5、ngisbasicallyaboutcreatingagenetically(基因地)identicalcopyofapreviouslyexistingperson.Whywouldsomepeoplechoosetoclonehumanbeings?Well,generally,itcouldmakecouplesunabletohavebabieshavetheirownchildren.Replacingadeadchildisalsoanotherreasonwhysomepeoplehaveexpressedinterestinthetechnology.1.Wecaninfer

6、fromthesecondparagraphthat________.A.Moreandmorepeopleareinterestedincloning11B.CloninghassavedmanyanimalsfromdyingoutC.CloninghasaveryshorthistoryD.Cloningplantsismucheasier1.Inwhatwayishumancloninguseful?A.Itcanbringadeadpersonbacktolife.B.Itmakesitpossibletoreplaceadeadchild.C.Itcanhelpcuresomeh

7、umandiseases.D.Itcanhelppeoplehavemorehealthychildren.2.Whatdoestheunderlinedword“misgivings”inthethirdparagraphmean?A.Worries.B.Aims.C.Regulations.D.Principles.3.Whatattitudedopeoplehavetowardshumancloning