全国卷届高考英语一轮复习 Unit 2 Healthy eating课时作业 新人教版必修3Word文件下载.docx

全国卷届高考英语一轮复习 Unit 2 Healthy eating课时作业 新人教版必修3Word文件下载.docx

《全国卷届高考英语一轮复习 Unit 2 Healthy eating课时作业 新人教版必修3Word文件下载.docx》由会员分享，可在线阅读，更多相关《全国卷届高考英语一轮复习 Unit 2 Healthy eating课时作业 新人教版必修3Word文件下载.docx（11页珍藏版）》请在冰豆网上搜索。

tendthere.Humpbackwhalesthemselvesarepopularlythoughttobelarge

butgenerally，passivecreatures.Pitman'

sstudyfindingsmayletpeoplethinkotherwise.

Whenchasedbyorcas，humpback

whalesareknowntotrytooutswimorcas.Theyarethoughttodothisathighspeedsothattheorcascan'

tkeepup.Onsomeoccasions，thehumpbackwhalessoughtoutprotection.Theyswamtoshallowwater，nearbyreefs，orevenundertheresearchers'

boats.Thesewaysoftenreducedtheattack.Butatothertimes，thehumpbackwhalesdecidedtostayandfight.

Astheorcasapproached，themotherhumpbackwouldsometimesmovehercalftoherside，orliftitoutofthewaterusingherheadorflippers.Shealsoblewhugebreathsofairtodisturbtheorcas，andlungedorchargedatthem，slashing（劈）andslappinghertailandflippers.Perhapsmostsurprisingly，humpbackwhalesalsohaveadult“escorts（护卫队）”thattrytoprotectcalvesthatarenottheirown，joiningthemotherindefendingthesmallerwhale.Theseescortwhaleseitherchargedattheorcas，orplacedthemselvesbetweentheattackersandcalves，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...tousesatellitestomonitorhermovements.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。

故选B。

答案：

B

2．Whydidthehumpbackwhalesswimtoshallowwater?

A．Toavoidbeingattacked.

B．Tohuntforfood.

C

．Toprotecttheiryoung.

D．Totrickthechasers.

根据文章第三段中的“Onsomeoccasions，thehumpbackwhalessoughtoutprotection.Theyswamtoshallowwater，nearbyreefs，orevenundertheresearchers'

boats.”可知，驼背鲸游至浅水区是出于自身的安全考虑，为了避免被攻击。

故选A。

3．WhatismainlytalkedaboutinParagraph4?

A．Whyhumpbackwhalesfallvictimtoorcas.

B．Howhumpbackwhalesprotecttheircalves.

C．Thegreatmotherloveofhumpbackwhales.

D．Smallerhumpbackwhales'

waysofsurviving.

段落大意题。

根据第四段的内容可知，本段主要讲的是在面对杀人鲸的攻击时，驼背鲸是如何进行反击来保护自己的幼崽的。

故B项最能概括本段的主旨要义。

4．WhatdoesPitman'

sstudyfind?

A．Orcasaresuccessfulintheirattacks.

B．It'

snoteasyfororcastoobtainfood.

C．Humpbackwhalesswimfasterthanorcas.

D．Humpbackwhalescouldbeactiveanimals.

推理判断题。

第二段提到“Humpbackwhalesthemselvesarepopularlythoughttobelargebutgenerally，passivecreatures.Pitman'

sstudyfindingsmayletpeoplethinkotherwise.”，驼背鲸一般被认为是大型的但是通常被动的生物，Pitman的研究发现可能会让人不这么认为。

下文接着讲了面对杀人鲸的攻击时，驼背鲸所采取的一些应对方式，其中包含积极迎击。

故选D。

D

Operaisanartformthatcelebratesthehumanvoice.Nootherartformcreatesexcitementandmovestheheartinthewaythatoperadoes，especiallywhenperformedbyagreatsinger.OperaisanimportantpartoftheWesternclassicalmusictradition.Itusesmusic，words，andactionstobringadramaticstorytolife.OperastartedinItalyattheendofthe16thcenturyandlaterbecamepopularthroughoutEurope.Overtheyears，ithasrespondedtovariousmusicals.Inrecentdecades，muchwideraudienceshavebeenintroducedtooperathroughmodernrecordingtechnology.Somesingershavebecomecelebritiesthankstoperformingonradio，onTV，andintheci

nema.

Howev

er，inrecentyears，operahasbeenfacingseriouschallenge

s.Onecurrentchallengetooperaiseconomics.Theshortageofmoneyraisesthebroaderquestionofhowmuchshouldbepaidtosupportoperasingersandotherartists.Societyseemstoacceptthelargesalariespaidtobusinessmanagersandthemultimilliondollarcontractsgi

ventosportsathletes.Butwhataboutoperasingers?

Somehow，peoplehavetheideathatartistscanbecreativeonlyiftheysufferinpoverty，butthisisunrealistic.Ifartists，includingoperasingers，lackthesupporttheyneed，valuabletalentiswasted.

Notonlytheshortageofmoney，butalsothewaymoneyismanagedintheoperaworldhasledtohardships.Principalsingersaregenerallypaidperformancefeesonceth