时文拓展阅读35鲲之大不知几千里鲸之大为何区区数米？.docx

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1、时文拓展阅读I酶之大不知几千里，鲸之大为何区区数米?“北冥有鱼，其名为鳏。鳏之大，不知其几千里也。”鳏，是传说中生活在北海的大鱼，如果真的存在，只怕它在太平洋里也未必能撒欢畅游。抛开传说，谈及现实世界中我们已知的“大鱼”时，那一定非鲸鱼莫属了。然而，在浩瀚无边的海洋里，无拘无束的鲸鱼为什么没能任性生长，变得更大呢？阅读短文并回答问题Wha1esarebig,butwhyaren,ttheyevenbigger?Anewstudysaysthekeyfactorishowmanyca1oriestheycantakein.Researcherscametothisconc1usionafteru

2、singsma11boatstochasedown300wha1esofvariousspeciesaroundthewor1d.Theyreachedoutwith1ongpo1estoattachsensors（传感器）tothecreatures,a11owingthemtorecordwhatwha1esweredoingastheydivedforfood.Thestudyinc1uded90b1uewha1es,thebiggestanima1severto1ive.Sizeestimatesvary,buttheycangrowtoabout100feet1ongandweigh

3、morethan100tons,accordingtotheAmericanCetaceanSociety.Theresearcha1soinc1udedspermwha1es,thebiggestwha1eswithteeth;theycangrowtoabout60feetin1ength.Toothedwha1eshunttheirprey（猎物）oneatatime,seekingthemoutinthedarkdepthswithasonar-1ikedetection.Butastheirbodysizeincreases,theirhuntingsty1ebecomesprogr

4、essive1y1essefficienttheytakeinfewerca1oriesfromtheirmea1sthanthenumbertheybumineachdive.That,saresu1tofthe1imitedavai1abi1ityofprey.B1uewha1esgrowbiggerbecausetheyfeedinamuchdifferentandmoreefficientway,theresearchersreported.Theyopentheirmouthswidetotakeinanenormousvo1umeofwaterevenbiggerthantheir

5、bodysizeastheyswima1ong.Theythenc1osetheirmouthsandstrainthewateroutthroughasieve-1ikefi1ter（过滤器）,trappinghugenumbersoftinyshrimp-1ikecreaturesca11edkri11.Thattta11owsthemtotakeadvantageofavery1argepreyresourcethat,sveryrichinasma11amountoftime,“saidJeremyGo1dbogenofStanfordUniversity,anothermembero

6、ftheresearchteam.TheygeahugebangforIhebuck.”Sowhyaren,ttheyevenbiggerthantheyare?ttPerhapsb1uewha1esare1imitedbytheseasona1natureofthemostnutritiouskri11patches,whichgrowhugeanddenseinthesummer,Go1dbogensaid.44Andca1cu1ationsindicatethattosustainab1uewha1ethat,s115feet1ong,you,dneedadensityofpreytha

7、tisjustnotseenanywhereinthewor1d.,1. Howdidresearchersconductthestudy?A. Bydetectingwha1eswithpo1es.B. Bytrackingwha1eswithdevices.C. Byfi1mingwha1es*preyingonboats.D. Byrecordingwha1essoundfromsensors.2. VVhatdoweknowabouttoothedwha1es?A. Theycangrowtoabout100feet1ong.B. Theyseekpreyinthesha11owwat

8、ers.C. Theyhunt1essefficient1yastheygrowo1der.D. Theydiveconsumingmoreca1oriesastheygrowbigger.3. VVhatmakesb1uewha1esdifferentfromtoothedwha1esinsize?A. B1uewha1eshavebigmouths.B. B1uewha1eshuntinthedeepsea.C.B1uewha1eseatmorevarietiesoffoods.D.B1uewha1eshuntforfoodmoreefficient1y.4. Whatdoestheund

9、er1inedsentenceinparagraph4referto?A. Preyingtakesmoretimethanbefore.B. Preyingbecomeseasierthanexpected.C. Wha1esgetagreaterharvestfrompreying.D. Wha1esconsumemoreca1oriesthantheyobtain.5. Whatmayinf1uenceb1uewha1es,bodygrowthaccordingtoGo1dbogen?A. Thesty1eoftheirpreying.B. Thesizeoftheir1ivingspa

10、ce.C. Thedensityofc1eanseawater.D. Thequantityofavai1ab1efd.【参考答案】BDDCD百单词学习1. estimate.估计；估价也估价；估算2. spermwha1es抹香鲸3. sonarn.声呐4. engu1fv,吞没；淹没5. strainv.滤，过滤Useaco1andertostrainthevegetab1es.把蔬菜放在漏筐里控水。6. sieven.筛子；漏勺haveamemory/mind1ikeasieve记性差，健忘7. fi1tern.滤器，过滤器anair/oi1fi1ter空气过滤器；滤油器8. shrim

11、pn.虾，小虾9. kri11n.磷虾10. bangforthebuck（俚语）钱花得合算；所做的努力值得Ourproductscanbetruebangforthebuck.我们的产品全都是货真价实的。11. denseadj.密集的；稠密的adensecrowd/forest密集的人群；密林12. densityn.密集；稠密popu1ationdensity人口密度目长难句分析1. Theyreachedoutwith1ongpo1estoattachsensors（传感器）tothecreatures,a11owingthemtorecordwhatwha1esweredoingas

12、theydivedforfood.【分析】句子主干为Theyreachedout。toattachsensorstotheCreatUreS”为目的状语。“a11owingthemto.divedforfood”为非谓语动词作结果状语；其中“whatwha1esweredoingastheydivedforfood为record”的宾语从句；“astheydivedforfood”为时间状语从句。【翻译】他们伸出长杆将传感器贴在这些动物身上，以便记录这些鲸潜水觅食时的行为。2. Andca1cu1ationsindicatethattosustainab1uewha1ethats115feet

13、1ong,you,dneedadensityofpreythatisjustnotseenanywhereinthewor1d.分析）4tha1tosustain.intheWOrkr为indicate”的宾语从句。宾语从句中的“tosustainab1uewha1ethat,s115feet1ongM作目的状语，44that,s115fbet1ong”为定语从句，修饰先行词ab1uewha1e,；“thatisjustnotseenanywhereinthewor1d,为定语从句，修饰先行词adensityofprey,o【翻译】计算表明：要维持一头115英尺长的蓝鲸的生命，你所需要的猎物密度是世界上任何地方都看不到的。当知识拓展1b1uewhaIe:蓝鲸，是一种海洋哺乳动物，属于须鲸亚目。它共有四个亚种。蓝鲸被认为是已知的地球上生存过的体积最大的动物，长可达33米，重可达180吨。2. spermwha1e:抹香鲸，头部巨大，下颌较小，仅下颌有牙齿。它主要食乌贼。体长可达18米，体重超过50吨,是体型最大的齿鲸，头部可占身体的1/3,无背鳍；潜水能力极强，是潜水最深、潜水时间最长的哺乳动物。3. AmericanCetaceanSociety：美国鲸类协会(ACS),它成立于1967年，是世界上第一个鲸鱼保护组织。ACS是一个非盈利组织，在加利福尼亚州的圣佩德罗设有办公室。