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Unit3Underthesea2虎鲸属于海豚科，它的英文名叫“KillerWhale”，脾气火爆，攻击性强，除了捕鱼、捉海狮之外，它还会攻击其他的鲸类(连大白鲨都不放在眼里)，称霸海上！那虎鲸还有其他什么特点呢？让我们来一起认识一下虎鲸吧！3TheKillerWhaleBecauseofitslargesizeandamazingjumpingabilities,thekillerwhaleisoneofthemostamazingandwellknownmarinemammalsinhistory.Althoughthesemarinemammalsarecommonlyreferredtoas“killerwhales”，theyactuallybelongtothedolphinfamily,whichismadeupofaround40differentspeciesofdolphins.4Killerwhalesarethelargestofallthedolphinspeciesandtheyareasbigassomewhales.Theyarealsooneofthemostamazinghuntersofallthemarinemammals.Inonestrategyagroupofkillerwhalesmaycirclearoundagroupoffish,forcingthemintoatightballwhileanotherkillerwhaleswimsunderneaththemtopushthemtowardsthesurfaceofthewater.5Whenfullygrown,thekillerwhalecanreachalengthof26ftandweighover6，000pounds.However,thelargestmeasuredkillerwhalegrewtoaround32ftlongandweighedaround10tons!6Thekillerwhalecanoftenbeseenworkingtogetherwithotherkillerwhalesusingteamworktocatchtheirprey.Inadditiontohuntingforfoodtogether,killerwhalesalsomakeuseofecholocation(回声定位法).Thisallowsthemtofindfoodevenwhentheyarehuntingatnight.Killerwhalesareextremelyfamilyoriented(导向的)andasmanyasfourgenerationsoffamilymembersmaybeseentravellingtogether.7Killerwhalesareextremelyintelligentandcanlearncomplextasksbyobservingandpracticing.Killerwhaleshavebeenobservedteachingeachotherhowtocommunicate,howtohuntandhowtosurviveintheocean.Todaykillerwhaleshavebecomeamainattractiontoseveralaquaticthemeparksshowingtheirtalentstothousandsofpeopleeachyear.Theyhavealsobecomepopularinmoviesandtelevisionshowswheretheyaredescribedasfriendlyandintelligentmarinemammals.8[阅读障碍词]1．marineadj.海的，海产的2．mammaln.哺乳动物3．strategyn.策略，战略4．preyn.猎物5．aquaticadj.水生的，水上的9[诱思导读]阅读上面短文，判断正误(T/F)。1．Killerwhalesbelongtothedolphinfamily.()2．Thelargestkillerwhaleisabout26ftlong.()3．Killerwhalescanteacheachotherhowtosurviveintheocean.()TFT10SectionⅠWarmingUp，Prereading&Reading11新生词汇初识12Ⅰ.匹配下列单词的词性及汉语意思()1.annualA．vt.当场见到；目击n．目击者；证人；证据()2.witnessB．adj.每年的；按年度计算的n．年刊；年鉴()3.accommodationC．n.住所；住宿13()4.oppositeD．vi.&n．暂停；中止()5.pauseE．vt.拖；拉；扯()6.dragF．prep.在……对面adj.相对的；相反的()7.depthG．vt.催促；极力主张；驱策14()8.urgeH．vi.逃避；逃跑vt.逃离()9.abandonI．n.深(度)；深处()10.fleeJ．vt.放弃；遗弃；抛弃[答案]1－5BACFD6－10EIGJH15Ⅱ.选择下列句中词组的汉语意思A．分类；整理B．听说C．帮助(某人)摆脱困境或危难D．瞄准E．与此同时；在此期间F．阻挡；延误()1.Hedrewhisgunandaimedattheenemysoldier.()2.Wedon'tknowthesinger，butwehaveheardofher.()3.Sortoutthingsyouwanttokeepandthroweverythingelseaway.16()4.Theflightwillbeannouncedsoon.Inthemeantime，pleaseremainseated.()5.Unfortunately，myapplicationwasheldupbythepostalstrike.()6.TheypromisedtohelpmeoutwhenIwasintrouble.[答案]1－6DBAEFC17教材语篇细研18OldTomTheKillerWhaleIwas16whenIbeganworkinJune1902atthewhalingstation.Ihadheardof①thekillersthateveryyearhelpedwhalerscatchhugewhales②.Ithought,atthetime,thatthiswasjustastorybutthenIwitnesseditwithmyowneyesmanytimes.19虎鲸老汤姆1902年6月，我16岁的时候，就开始在捕鲸站工作了。在此之前我曾听说过虎鲸，它们每年帮助捕鲸人捕捉大鲸鱼。那时我以为这只是一个故事，但是后来我亲眼看见过许多次。[助读讲解]①hearof听说(＝hearabout)。②that引导定语从句，修饰thekillers，that在定语从句中作主语。20OntheafternoonIarrivedatthestation,asIwassortingoutmyaccommodation,Iheardaloudnoisecomingfromthebay.Werandowntotheshore(岸)intime③toseeanenormousanimaloppositeusthrowingitselfoutof④thewaterandthencrashingdownagain.Itwasblackandwhiteandfishshaped.ButIknewitwasn'tafish.21“That'sOldTom,thekiller，”oneofthewhalers,George,calledouttome.“He'stellingusthere'sawhaleoutthereforus.”Anotherwhaleryelled(呼喊)out,“Rushoo...rushoo.”Thiswasthecallthatannouncedtherewasabouttobeawhalehunt⑤.22一天下午我来到捕鲸站，当我整理我的住处时，我听到从海湾方向传来了一阵巨大的喧闹声。我们及时赶到岸边，看到对面有一个庞大的动物猛力跃出水面，然后又坠落到水里。它黑白相间，形状像鱼。但是我知道它并不是鱼。“那是老汤姆，是虎鲸。”一位叫乔治的捕鲸人高声对我说。“它是在告诉我们那边有头鲸，让我们去捕猎。”另外一位捕鲸人大声喊：“快走啊……走啊。”这是宣告捕鲸行动马上就要开始的呼声。23[助读讲解]③intime及时，迟早。④throwoneselfoutof跃出。⑤that引导定语从句，修饰thecall；其中therewasabouttobe...是announced的宾语从句。24“Comeon,Clancy.Totheboat，”Georgesaidasheranaheadofme.IhadalreadyheardthatGeorgedidn'tlikebeingkeptwaiting,soeventhoughIdidn'thavetherightclotheson,Iracedafterhim.25Withoutpausingwejumpedintotheboatwiththeotherwhalersandheaded⑥outintothebay.IlookeddownintothewaterandcouldseeOldTomswimmingbytheboat,showingustheway⑦.Afewminuteslater,therewasnoTom,soGeorgestartedbeatingthewaterwithhisoarandtherewasTom,circlingbacktotheboat⑧，leadingustothehuntagain.26“克兰西，快来。上船去。”乔治在我前面边跑边说。我以前就听说过乔治不喜欢等待，所以尽管我还没穿上合适的衣服，我还是跟在他后面跑了起来。毫不迟疑地我们和其他捕鲸人都跳上船，朝海湾方向驶去。我向下朝水里望去，可以看到老汤姆就在船旁边游着，为我们指路。几分钟之后，汤姆不见了，于是乔治开始用桨拍打水面，汤姆出现了，兜了个圈子转回到船边，又领着我们前往捕猎处。27[助读讲解]⑥headvi.朝……前进。⑦现在分词短语showingus...在句中作伴随状语。⑧circlingback...在句中作状语。Usingatelescope(望远镜)wecouldseethatsomethingwashappening.Aswedrewcloser,Icouldseeawhalebeingattackedbyapackofaboutsixotherkillers.“What'retheydoing？”IaskedGeorge.28“Well,it'steamwork(协作)—thekillersovertherearethrowingthemselvesontopofthewhale'sblowholetostopitbreathing.Andthoseothersarestoppingitdiving(潜水)orfleeingouttosea，”Georgetoldme,pointingtowardsthehunt.Andjustatthatmoment,themostextraordinarythinghappened.Thekillersstartedracingbetweenourboatandthewhalejustlikeapackofexciteddogs.29Thentheharpoon(鱼叉)wasreadyandthemaninthebowoftheboa