2018届高三英语总复习第一部分回归教材Unit3Underthesea课时作业新人教版.docx

《2018届高三英语总复习第一部分回归教材Unit3Underthesea课时作业新人教版.docx》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、Unit3UndertheseaⅠ.阅读理解(2017·南阳一中月考)Oceanographyhasbeendefinedas“Theapplicationofallsciencestothestudyofthesea”．Beforethenineteenthcentury,scientistswithaninterestintheseawerefewandfarbetween.CertainlyNewtonconsideredsometheoreticalaspectsofitinhiswritings,buthewasunwillingtogotos

2、eatofurtherhiswork.Formostpeopletheseawasremote,andwiththeexceptionofearlyintercontinentaltravelersorotherswhoearnedalivingfromthesea,therewaslittlereasontoaskmanyquestionsaboutit,letalonetoaskwhatlaybeneaththesurface.Thefirsttimethatthequestion“Whatisatthebottomoftheoceans？”hadt

3、obeansweredwithanycommercialconsequencewaswhenthelayingofatelegraphcable(电缆)fromEuropetoAmericawasproposed.Theengineershadtoknowthedepthprofile(起伏形状)oftheroutetoestimatethelengthofcablethathadtobemade.ItwastoMauryoftheUSNavythattheAtlanticTelegraphCompanyturned,in1853,forinformat

4、iononthismatter.Inthe1840s,Mauryhadbeenresponsibleforencouragingvoyagesduringwhichsoundings(测深)weretakentoinvestigatethedepthsoftheNorthAtlanticandPacificOceans.Later,someofhisfindingsarousedmuchpopularinterestinhisbook—ThePhysicalGeographyoftheSea.Thecablewaslaid,butnotuntil1866

5、wastheconnectionmadepermanentandreliable.Attheearlyattempts,thecablefailedandwhenitwastakenoutforrepairsitwasfoundtobecoveredinlivinggrowths,afactwhichdefiedcontemporaryscientificopinionthattherewasnolifeinthedeeperpartsofthesea.Withinafewyearsoceanographywasunderway.In1872Thomso

6、nledascientificexpedition,whichlastedforfouryearsandbroughthomethousandsofsamplesfromthesea.Theirclassificationandanalysisoccupiedscientistsforyearsandledtoafivevolumereport,thelastvolumebeingpublishedin1895.1．Thepassageimpliesthatthetelegraphcablewasbuiltmainly________.A．forocea

7、nographicstudiesB．formilitarypurposesC．forbusinessconsiderationsD．forinvestigatingthedepthsoftheoceans2．TheaimofvoyagesMauryencouragedinthe1840swas________.A．tomakesomesoundexperimentsintheoceansB．tocollectsamplesofseaplantsandanimalsC．toestimatethelengthofcablethatwastobemadeD．t

8、omeasurethedepthsofthetwooceans3．Theunde