2019版一轮英语（人教版）（话题部分）练习： 必修一 Unit 3 Travel journal

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

2、attackedeightyounghumpbackwhales.Duringthesevenattacks，theorcakilledthehumpbackwhalecalf(幼兽)onthreeoccasions.Butthestorydoesn'tendthere.Humpbackwhalesthemselvesarepopularlythoughttobelargebutgenerally，passivecreatures.Pitman'sstudyfindingsmayletpeoplethinkotherwise.Whenchasedbyorc

3、as，humpbackwhalesareknowntotrytooutswimorcas.Theyarethoughttodothisathighspeedsothattheorcascan'tkeepup.Onsomeoccasions，thehumpbackwhalessoughtoutprotection.Theyswamtoshallowwater，nearbyreefs，orevenundertheresearchers'boats.Thesewaysoftenreducedtheattack.Butatothertimes，thehumpbac

4、kwhalesdecidedtostayandfight.Astheorcasapproached，themotherhumpbackwouldsometimesmovehercalftoherside，orliftitoutofthewaterusingherheadorflippers.Shealsoblewhugebreathsofairtodisturbtheorcas，andlungedorchargedatthem，slashing(劈)andslappinghertailandflippers.Perhapsmostsurprisingly，

5、humpbackwhalesalsohaveadult“escorts(护卫队)”thattrytoprotectcalvesthatarenottheirown，joiningthemotherindefendingthesmallerwhale.Theseescortwhaleseitherchargedattheorcas，orplacedthemselvesbetweentheattackersandcalves，slashingtheirtailsandflippers.Despitetheeffortsofthemotherwhalesande

6、scorts，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驼背鲸的。1．What'sthepurposeofthescientists'furtherresearch?A．Tokeeparecordofwhales'livinghabits.B．To

7、observeorcas'huntinghumpbackwhales.C．Toseewhatlifeordeathbattleswhalesmayface.D．Tofindoutthetechniquesorcasusewhenhunting.解析：细节理解题。根据文章第一段中的“Toresearchfurther...tousesatellitestomonitorhermovements.Theyfollowedherforsixdays.Duringthattime，theorcaattackedeightyounghumpbackwhales...

8、”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