高考英语一轮复习 阅读理解选编11

《高考英语一轮复习 阅读理解选编11》由会员上传分享，免费在线阅读，更多相关内容在应用文档-天天文库。

1、黑龙江双鸭山市2017高考英语一轮阅读理解选编阅读理解。阅读下列短文,从给的四个选项(A、B、C和D)中,选出最佳选项。USresearchershavefoundtracesofanancientlakeonMarsrecently，increasinghopesofdiscoveringevidencethatbillionsofyearsagotheRedplanethostedlife.Thelake，whichdatesbacksome3.4billionyears，appearstohavecover

2、edasmuchas80squaremilesandwasupto1,500feetdeep，saidtheteamfromtheUniversityofColorado.“ThisisthefirstclearevidenceofshorelinesonthesurfaceofMars，”saidBoulder'sresearchassociate，GaetanoDiAchille，inastudypublishedinthelatesteditionofGeophysicalResearchLetters.“

3、Theidentificationoftheshorelinesandaccompanyinggeologicalevidenceallowsustocalculatethesizeandvolumeofthelake，whichappearstohaveformedabout3.4billionyearsago.”Analysisoftheimageshasshownthewatercarvedoutthecanyon(溪谷)inwhichitwasfound，whichthenopenedoutintoava

4、lleydepositing(使淤积)sediment(沉积)whichformedadelta(三角洲)．“Findingshorelinesisagreatdiscoverytous，”saidassistantprofessorBrianHynek，addingitshowedthelakeexistedatatimewhenMarswasthoughttohavebeencoldanddry.ScientistsbelievetheoldestsurfacesonMarsformedduringthewe

5、tandwarmeraknownastheNoachanepoch，about4.1billionto3.7billionyearsago.ThenewlydiscoveredlakeisbelievedtodatefromtheHesperianeraandpostdatestheendofthewarmandwetperiodonMarsby300millionyears，accordingtothestudy.Scientistsbelievedeltasnexttothelakemaywellholdse

6、cretsaboutpastlifeonMarsassuchplacesonEarthhavebecomethenaturaldepositsoforganiccarbonandothermarkersoflife.1.ThesizeofthelakefoundonMarsis________.A．80squaremilesB．1,500squaremilesC．3.4billionsquaremilesD．300millionsquaremiles答案：A　细节理解题。根据第二段中“Thelake，whichd

7、atesbacksome3.4billionyears，appearstohavecoveredasmuchas80squaremiles”一句，可推知答案。2.Whenthelakeexisted，theweatheronMarswas________.A．hotandwetB．wetandwarmC．coldanddryD．coldandwet答案：C　细节理解题。根据第六段中…itshowedthelakeexistedatatimewhenMarswasthoughttohavebeencoldanddr

8、y知，答案为C。3.WhydoscientiststhinkdeltasnearthelakemayholdsecretsaboutpastlifeonMars?A.BecausesimilarplacesonEarthhavebecomenaturaldepositsofmarkersoflife.10B．Becausesomeonehasputsecretsabout