阅读理解训练（7）阅读下列四篇短文，从每小题后所给的A,B,C或D四个选项中，选出最佳选项。AccordingtotheUSgovernment,windfarmsoffthePacificcoastcouldproduce900gigawattsofelectricityeveryyear.Unfortunately,thewaterthereisfartoodeepforeventhetallestwindmills(seepicture)totouchbottom.AnexperimentunderwayoffthecoastofNorway,however,couldhelpputthemanywhere.Theproject,calledHywind,istheworld’sfirstlarge-scaledeepwaterwindturbine(涡轮发电机).Althoughitusesafairlystandard152-ton,2.3-megawattturbine,Hywindrepresentstotallynewtechnology.Theturbinewillbefixed213feetabovethewateronafloatingspar(seepicture),atechnologyHywind’screator,theNorwegiancompanyStatoilHydro,hasdevelopedrecently.Thesteelspar,whichisfilledwithstonesandgoes328feetbelowtheseasurface,willbetiedtotheoceanfloorbythreecables(缆索);thesewillkeepthesparstableandpreventtheturbinefrommovingupanddowninthewaves.Hywind’sstability(稳定性)inthecoldandroughseawouldprovethateventhedeepestcornersoftheoceanaresuitableforwindpower.Ifallgoesaccordingtoplan,theturbinewillstartproducingelectricitysixmilesoffthecoastofsouthwesternNorwayasearlyasSeptember.Toproduceelectricityonalargescale,acommercialwindfarmwillhavetousebiggerturbinesthanHywinddoes,butit’sdifficultenoughtobalancesuchalargeturbinesohighonafloatingsparinthemiddleoftheocean.Tomakethatturbineheavier,thewholespar’scentreofgravitymustbemovedmuchclosertotheocean’ssurface.Todothat,thecompanyplanstodesignanew1kindofwindturbine,onewhosegearbox(变速箱)sitsatsealevelratherthanbehindtheblades(seepicture).Hywindisatestrun,butthebenefitsforperfectingfloatingwind-farmtechnologycouldbeextremelylarge.Outatsea,thewindisoftenstrongerandsteadierthanclosetoshore,whereallexistingoffshorewindmillsareplanted.Deep-seafarmsareinvisiblefromland,whichhelpsovercomethewindmill-as-eyesoreobjection.Ifthetechnologycatcheson,itwillopenupvastareasoftheplanet’ssurfacetooneofthebestlow-carbonpowersourcesavailable.1.TheHywindprojectusestotallynewtechnologytoensurethestabilityof.A.thecableswhichtiethespartotheoceanfloorB.thesparwhichisfloatingindeep-seawaterC.thebladesdrivenbystrongandsteadyseawindD.thestonesfilledinthesparbelowtheseasurface2.Tobalanceabiggerturbinehighonafloatingspar,anewtypeofturbineistobedesignedwithitsgearboxsitting.A.ontheseafloorB.onthespartopC.atsealevelD.behindtheblades3.Wideapplicationsofdeepwaterwindpowertechnologycan.A.solvethetechnicalproblemsofdeepwaterwindmillsB.makefinancialprofitsbyproducingmoreturbinesC.settletheargumentsaboutenvironmentalproblemsD.explorelow-carbonpowerresourcesavailableatsea【参考答案】1-3BCDA2“Clevernessisagiftwhilekindnessisachoice.Giftsareeasy–they’regivenafterall.Choicescanbehard.”––JeffBezosIgottheideatostartAmazon16yearsago.IcameacrossthefactthattheInternetusagewasgrowingat2,300percentperyear.I’dneverseenorheardofanythingthatgrewthatfast,andtheideaofbuildinganonlinebookstorewithmillionsoftitleswasveryexcitingtome.Ihadjustturned30yearsold,andI’dbeenmarriedforayear.ItoldmywifeMacKenziethatIwantedtoquitmyjobandgotodothiscrazythingthatprobablywouldn’tworksincemoststart-upsdon’t,andIwasn’tsurewhattoexpect.MacKenzietoldmeIshouldgoforit.Asayoungboy,I’dbeenagarageinventor.I’dalwayswantedtobeaninventor,andshewantedmetofollowmypassion.IwasworkingatafinancialfirminNewYorkCitywithabunchofverysmartpeople,andIhadabrilliantbossthatImuchadmired.Iwen...
