2019高中英语unit7theseasectionⅰwarm_up

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1、Unit7TheSeaKillerwhaleshavethesecondheaviestbrainsamongmarinemammals(afterSpermwhales,whichhavethelargestbrainofanyanimal).Theycanbetrainedincaptivity(囚禁；关押)andareoftendescribedasintelligent,althoughdefiningandmeasuring“intelligence”isdifficultinaspecieswhoseenvironmentandbehavioralstr

2、ategiesareverydifferentfromthoseofhumans.Killerwhalesimitateothers,andseemtodeliberatelyteachskillstotheirkin.OfftheCrozetIslands,motherspushtheircalvesontothebeach,waitingtopulltheyoungsterbackifneeded.Peoplewhohaveinteractedcloselywithkillerwhalesoffernumerousanecdotesdemonstrating(证

3、明)thewhales'curiosity,playfulness,andabilitytosolveproblems.AlaskankillerwhaleshavenotonlylearnedhowtostealfishfromIonglines,butalsohaveovercomeavarietyoftechniquesdesignedtostopthem,suchastheuseofunrated(未分级的；未征税的)linesasdecoys.Once,fishermenplacedtheirboatsseveralmilesapart,takingtur

4、nsretrieving(恢复；取回)smallamountsoftheircatch,inthehopethatthewhaleswouldnothaveenoughtimetomovebetweenboatstostealthecatchasitwasbeingretrieved.Aresearcherdescribedwhathappenednext:Thekillerwhale'suseofdialectsandthepassingofotherlearnedbehavioursfromgenerationtogenerationhavebeendescri

5、bedasaformofanimalculture.Section_ⅠWarmup__&_Lesson_1_—_Prereading　　　　　　　　　　　　　　　　　　　　　　　　VIKINGVOYAGES①TOAMERICATheVikings②werethefirstEuropeanstoreachAmerica③.Theyachieved④thislongbefore⑤Columbuseversetsail⑥.TheVikingswereagroupofpeoplewhoseancestors⑦camefromScandinavia⑧.Theycontroll

6、edtheseasandcoastsofNorthernEuropebetweenthe8thand10thcenturiesAD⑨.Byaround900AD,thereweremanyplacesinNorthernEuropewheretheVikingschosetolive⑩.In982AD,whenamancalledErictheRed⑪decidedtosetsailfurther⑫west,therewereasmanyas10,000VikingslivinginIceland⑬.①voyage/'vɔIIdʒ/n．航海；航空②Viking/'v

7、aIkIŋ/n．维京人，北欧海盗③名词中心词被序数词或thelast等修饰时，其后通常用动词不定式作后置定语。④achievevt.实现，到达　achievementn．成就，功绩⑤longbefore很久以前　beforelong不久以后⑥setsail启航⑦ancestor/'ænsεstə/n．祖先，祖宗⑧whose引导的定语从句，修饰agroupofpeople。⑨ADn．公元　BCn．公元前⑩where引导的定语从句，修饰NorthernEurope。⑪过去分词作后置定语。⑫further/'fɜːðə/adv.更远，较远further是far的比较级