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时间:2019-10-25
《2020版高考英语复习Module6OldandNew课后达标检测外研版》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、Module6OldandNew(建议用时:45分钟)Ⅰ阅读理解(2019·安徽示范高中高三上学期考试)Haveyoueverwonderedwhendogsfirstbecame“man’sbestfriend”andtheworld’sfavouritepet?Ifyouhave,thenyou’renotalone.Whenandwheredogsfirstbeganlivingsidebysidewithhumansarequestionsthathavestirredhotdebateamongscientists.Thereareafewhardf
2、actsthatallagreeon.Theseincludethatdogswereoncewolvesandtheywerethefirstanimaltobedomesticated(驯养)byhumans.Theycameintohumanlivessome15,000yearsago,beforethedawnofagriculture.Beyondthat,thereislittleagreement.Theearliestbonesfoundthatareunquestionabledogs’andnotwolves’datefrom14,000
3、yearsago.However,30,000-year-oldskullshavebeendiscoveredinFranceandBelgiumthatarenotpurewolves’andsomescientiststhinkcouldbedogs’.Withsuchpuzzlingevidence,manyscientistsarenowturningtoDNAtofindoutwhenandwheredogswerefirstdomesticated.Inoneresearchproject,tensofthousandsofbloodsample
4、shavebeentakenfromstreetdogsaroundtheworld.Theplanistocomparethemwiththoseofwolves.It’sevenpossibletoanalyseDNAfromancientbones.Tinypiecesofthe30,000-year-oldskullsmentionedearlierarecurrentlybeingstudied,andanotherDNAstudyhasalreadyshownthatancientdogspreservedintheAlaskanicefields
5、evolvedfromAsianwolves,notAmericanones.Indeed,theancientDNAmayturnouttobemoreinformativethantheDNAoflivingdogs.Becausedogshaveaccompaniedhumansaroundtheworldforthousandsofyears,theircurrentdistributionmaytellusverylittleoftheirorigins.Thisiswhydifferentgroupsofscientistsbelievethatd
6、ogsvariouslyoriginatedineasternAsia,Mongolia,Siberia,EuropeorAfrica.Butwhyweretheanimalsdomesticatedinthefirstplace?Themostrecenttheoryisthatdogsdomesticatedthemselves,initiallylivinginandaroundourancientvillagestoeatanyfoodthrownout.Today,thisisawayoflifestillsharedbythreequarterso
7、fabillionunowneddogsworldwide.【解题导语】本文是一篇说明文。研究发现,狗是从狼驯养而来的,早在一万五千年之前狗就进入了我们的生活。科学家通过分析DNA去查证狗最初是在何时何地被驯养的。1.Whichistheonlystatementgenerallyagreedonbyscientistsstudyingdogs?A.Dogsoriginallywereusedasfarmanimals.B.DogsevolvedfromwolvesfoundinEurope.C.Dogshelpedthedevelopmentofagricu
8、lture.D.Dogswerethe
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