【人教版】2020版一轮优化探究英语 话题专练8 必修一 Unit 3 Travel journal 含答案.doc

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1、Ⅰ.阅读理解ABiologistRobertPitmanandhiscolleaguestrackedorcas，orkillerwhales，andhumpbackwhalesoffthecoastofWesternAustralia.Toresearchfurther，thescientistsattachedatrackertoafemaleorca，whichallowedthemtousesatellitestomonitorhermovements.Theyfollowedherforsixdays.During

2、thattime，theorcaattackedeightyounghumpbackwhales.Duringthesevenattacks，theorcakilledthehumpbackwhalecalf(幼兽)onthreeoccasions.Butthestorydoesn'tendthere.Humpbackwhalesthemselvesarepopularlythoughttobelargebutgenerally，passivecreatures.Pitman'sstudyfindingsmayletpeop

3、lethinkotherwise.Whenchasedbyorcas，humpbackwhalesareknowntotrytooutswimorcas.Theyarethoughttodothisathighspeedsothattheorcascan'tkeepup.Onsomeoccasions，thehumpbackwhalessoughtoutprotection.Theyswamtoshallowwater，nearbyreefs，orevenundertheresearchers'boats.Theseways

4、oftenreducedtheattack.Butatothertimes，thehumpbackwhalesdecidedtostayandfight.Astheorcasapproached，themotherhumpbackwouldsometimesmovehercalftoherside，orliftitoutofthewaterusingherheadorflippers.Shealsoblewhugebreathsofairtodisturbtheorcas，andlungedorchargedatthem，s

5、lashing(劈)andslappinghertailandflippers.Perhapsmostsurprisingly，humpbackwhalesalsohaveadult“escorts(护卫队)”thattrytoprotectcalvesthatarenottheirown，joiningthemotherindefendingthesmallerwhale.Theseescortwhaleseitherchargedattheorcas，orplacedthemselvesbetweentheattacke

6、rsandcalves，slashingtheirtailsandflippers.Despitetheeffortsofthemotherwhalesandescorts，theorcasweremoreoftenthannotsuccessfulintheirattacks.Butthepresenceoftheescortsdidreducehowmanytimesawhalecalfwaskilled.[语篇解读]　本文是一篇说明文，主要讲的是科学家使用科学仪器来观察杀人鲸是如何追杀驼背鲸及后者是如何反击和保护幼小的

7、驼背鲸的.1．What'sthepurposeofthescientists'furtherresearch?A．Tokeeparecordofwhales'livinghabits.B．Toobserveorcas'huntinghumpbackwhales.C．Toseewhatlifeordeathbattleswhalesmayface.D．Tofindoutthetechniquesorcasusewhenhunting.解析：细节理解题.根据文章第一段中的“Toresearchfurther...tousesat

8、ellitestomonitorhermovements.Theyfollowedherforsixdays.Duringthattime，theorcaattackedeightyounghumpbackwhales...”可知，科学家进行进一步研究的目的是观察杀人鲸追杀驼背鲸的活动.故