【文档说明】2019-2020学年人教版英语选修九新素养同步讲义：Unit+2+Sailing+the+oceans+1　Unit+2　Section+Ⅰ　Warming+Up+%26+Reading—Prepa.docx，共(5)页，1.116 MB，由envi的店铺上传

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河流孕育着世界各地的文明，我们不能只是向她们索取，更重要的是要保护她们。在美国举行的RiverSpiritExchange活动，正在帮助中国和美国的青年们更好地了解对方，了解河流，从而一起协作，更好地保护河流。Sisterriversb

uildculturalbridgebetweenUSandChinaTheMississippiisthemajorriversystemintheUnitedStates.TheYangtzeisChina’slo

ngestriver.Althoughaworldapart，thetwowaterwaysshareconservation(保护)concernsthatprovideaculturalbridgebetween

studentsfromtheUnitedStatesandChina，aswellasfromotherpartsoftheworld.41studentsfromadozencollegesexploredasectionoftheMississippiinWisconsinan

dIowa，tolearnabouttheenvironment，andeachother.Thestudents，fromtheUS，Chinaandothercountries，tookpartintheRiverS

piritExchangeprogram.Thecross-culturaleducationalexperiencefocusesontheMississippiandChina’slongestriver，

theYangtze.Thisthreedayget-togetherfeaturedstory-telling，campingandcanoeing(划独木舟)．It’spartofalargerlessonaboutconservationproje

ctsthatcanbeusedonboththeYangtzeandMississippi.AfterthegroupmetattheCraneFoundationpreserve，theyheadedsouthtoanareaoftheKickapooRiver，wherea20-

yearconservationprotectedthenaturalsettingofthewaterway.TheeffortwasledbythedirectoroftheLowerWisconsinStateRiverwayBoard.Hetoldthegrouphe

wasproudofitssuccess.“IbelievebecauseoftheRiverwayProjectwecanmakesurethatourgrandchildren’sgrandchildrenwillbeabletosetacanoeinthew

atersoftheWisconsinRiverandbeabletoexperiencethesamebeautythatwecanseetodayandwhatNativeAmericanssawmanygenerationsbefore.”Butaccomplishin

gthatwasnoteasy.Hetoldthestudentssettingrulesforloggers(樵夫)，farmers，landownersanddeveloperscausedangera

ndevenafewthreatsofviolencebetweenthetwosides.SimilardifficultiesweremetinChinawhenpeopleweretryingtopreservetheYangtzeRiver.ChinesestudentLuXia

ojunsaidtheMississippiandYangtzeRiverwereunitingthesestudentsfromoppositeendsoftheearth.“Wegottoknoweachotherduringtheexchange，”hesaid.Hehopedthat

，byworkingtogether，theywouldfindsolutionstopreservingthesewaterways.“Ithinkitcertainlyhelpedpeoplechangetheirthinkingandsotheycanlookbeyondnowtot

hefuture.”SectionⅠWarmingUp&Reading—Preparing1．mercyn．仁慈；宽恕；怜悯2．explorationn.探险；探测3．overheadadv.在头顶上；在空中；在高处adj.在头上的4．r

andomadj.任意的；随便的5．awkwardadj.难使用的；笨拙的6．referencen.参考7．minimumadj.最小的；最低的8．secureadj.安全的；可靠的9．preciseadj.精确的；准确的10．

simplifyvt.单一化；简单化11．shortcomingn.缺点；短处12．reliableadj.可靠的；可信赖的13．updatevt.更新14．tendencyn.趋向；倾向1．atthemercyof受……支配2．workout制定出3

．comparesth.withsth.把……与……相比较4．inrelationto...与……相关联5．makemistakes犯错误1．Howdo_you_thinkseamenfoundtheirwaybe

foremodernaccuratemethodsofnavigationwereinvented?你们认为现在精确的航海方法被发明之前海员们是怎么找到方法进行航海的？2．Wemaywellwonderhowseamenexploredtheoceansbeforelati

tudeandlongitudemadeitpossibleto_plot_a_ship’s_position_on_a_map．我们很可能感到奇怪，在经纬度被用来在地图上标出船只位置之前，海员是如何进行探索的。3．Thisseemsto_have_beenthefirstand

mostusefulformofexplorationwhichcarriedtheminimumamountofrisk.这似乎已是最早的、最有用的探险方式，所冒风险也最小。ⅠScanthetextandthench

oosethebestansweraccordingtothetext.1．Askilledseamancannotusethe________toplotaship’sposition.A．flagB．sunC．cloudsD．NorthStar2．Theuseofseaw

eedisto________．A．judgewhethertheshipisclosetolandB．knowhowlongtheseamenlefttheirhomeC．tellthedistanceofthelandandtheshipD．maketheirj

ourneymeaningful3．Howmanythingsdidtheseamenusebeforelatitudeandlongitudewereplotted?A．Four.B．Five.C．Seven.D．Eight.4．Wecanlearnfromth

etextthattherehadbeen________method(s)tofindlongitudebythe17thcentury.A．twoB．threeC．oneD．no5．What’sthemainide

aofthepassage?A．Whyearlyseamanwantedtosailtheocean.B．Thereisusefulinformationinanencyclopedia.C．Earlysailingmenwentexplor

ingtheseasusingtheirskillsandsimpleinstruments.D．Latitudeandlongitudeareimportanttoplotaship’sposition.答案：1－5.AADACⅡFillintheblan

ksaccordingtothetext.Thisreadingexplains1.____________seamenexploredtheoceansandwhatkindof2.____________(navigation)instruments3._________

___(use)tosailorsbeforetheseventeenthcentury4.____________theywerenavigatingtheopenseaswithout5._____

_______(see)land.Thevoyagesoftravellersbeforethe6.____________(seventeen)centuryshowthattheywerenotat7.____________mercyoftheseaev

enthoughtheydidnothavemodernnavigationalaids.Theseamencouldusecelestialbodies，wildlife，theweatherortheseatokeepalongsidethecoastline.Theycouldals

ousethecompasstohelpfindthedirectionthattheshipneeds8.____________(go)．TheycouldusetheBearingCircletomeasurethesun’spositionandtelliftheyweresailingo

ntheircorrectrather9.____________arandomcourse.Theastrolabe，quadrantandsextantcouldhelpgivetheseamenthelocaltimeandallowedthem10.__________

__(find)theirlatitudeatsea.答案：1.how2.navigational3.wereused4.when5.seeing6.seventeenth7.the8.togo9．than10.tofind获得更多资源请扫

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