2019版一轮优化探究英语（人教版）（话题部分）练习：话题8 必修一 Unit 3 Travel journal Word版含答案

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

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

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

4、backwhalesdecidedtostayandfight.Astheorcasapproached，themotherhumpbackwouldsometimesmovehercalftoherside，orliftitoutofthewaterusingherheadorflippers.Shealsoblewhugebreathsofairtodisturbtheorcas，andlungedorchargedatthem，slashing(劈)andslappinghertailandflippers.Perhapsmostsurprisin

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

6、sandescorts，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'livinghabit

7、s.B．Toobserveorcas'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，theorcaattackedeightyounghumpbackwh

8、ales...”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