高中英语Unit5Thepowerofnature单元质量评估新人教版选修Word文件下载.docx

高中英语Unit5Thepowerofnature单元质量评估新人教版选修Word文件下载.docx

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第一节（共15小题；

每小题2分，满分30分）

阅读下列短文，从每题所给的四个选项（A、B、C和D）中，选出最佳选项。

A

Theseaishometobillionsofplantsandanimals.Manyliveonlynearthesunlitsurface.Oceanographersclassifymarinelivingbeingsbyseparatingthemintotwomaingroups:

plantsandanimals.

Therearetwogeneraltypesofplantsfoundintheocean,thosehavingrootsthatareattachedtotheoceanbottomandthosenothavingrootswhichsimplydriftaboutwiththewater.Therootedplantsintheoceanareonlyfoundinshallowwaterbecausethereisnotenoughsunlighttosustainphotosynthesis（光合作用）indeeperwaters.Sincesunlightdoesnotpassmorethanafewhundredfeetintotheocean,mostoftheoceanisnotcapableofsupportingrootedplants.

Themostplentyplantsintheoceanareknownasphytoplankton（浮游生物）．Theseareusuallysingle－celled,minutefloatingplantsthatdriftthroughoutthesurfacewatersoftheocean.Togrow,phytoplanktonneednutrientsfromtheseawaterandlotsofsunlight.

Marineanimalsaredividedintothreegroups:

zooplankton,nekton,andbenthos.Zooplanktonaredriftinganimalsandareusuallysmall,however,theycangrowtofairlylargesize.Forexample,thejellyfishandthePortugueseman－of－warareexamplesoflargertypesofzooplanktonwhichareunabletopropel（推进）themselveseffectively.

Nektonarethefreeswimmersandprobablythelargestportionoffamiliaranimalsfoundintheoceanbelongtothisclass.Commonfishes,theoctopus,whales,eelsandsquidareallexamplesofnekton.

Thethirdtypeofseaanimalspendsitsentirelifeonorintheoceanbottom.Thisgroupofmarineanimalsiscalledthebenthos.Someofthesecreatures,suchaslobstersandsnails,maybeabletomoveaboutonthebottombuttheirlifestyleissoboundupwiththeoceanfloorthattheyareunabletosurviveawayfromthisenvironment.

【语篇解读】　海洋是成千上万种动物和植物的家乡。

海洋植物主要有两种：

有根植物和浮游植物；

海洋动物大体可分为三类：

浮游动物、游泳动物和海底动物。

1．Thetextmainlytellsussomethingabout________．

A．marineplantsandmarineanimals

B．twotypesofseaplants

C．threekindsofseaanimals

D．smallandbiganimalsintheocean

解析：

主旨大意题。

本文主要讲述了海洋生物的分类（海洋植物和海洋动物）以及它们的特点。

答案：

2．Whycan'

twefindtherootedplantsindeepwateroftheocean?

A．Becausetherearetoomanyrocksatthebottomoftheocean.

B．Becausetherootedplantscan'

tstandthecoldnessoftheocean.

C．Becausethereisnotenoughsunlightforthemindeepwater.

D．Becausetherootedplantsneedmoresunlightthanplantswhichhavenoroots.

细节理解题。

根据第二段可知，有根植物不能在很深的海底生存是因为那儿没有充足的阳光来进行光合作用。

C

3．Oneofthecharacteristicsofzooplanktonisthat________．

A．theyaresmallandnevergrowtolargesize

B．someofthezooplanktoncan'

tswimeffectively

C．theycanswimfreelyindeepwateroftheocean

D．theyneedmoresunlightthanotheranimalsintheocean

根据倒数第四段最后一句可知，有些浮游动物事实上不能自己前进，也就是说它们实际上不能游泳。

B

4．Accordingtothelastparagraph,wecanconcludethat_____．

A．benthosliveonthesurfaceoftheoceanwater

B．someofthebenthoscan'

tlivewithouttheoceanfloor

C．benthosspendmostoftheirtimeswimmingintheocean

D．benthoscanmoveaboutinthemiddleoftheseawater

根据短文最后一句可知海底动物离开海底不能生存。

DorisCarvalho，awomanfromTampa，Americahascomeupwithanoriginalwayofcombininghertwogreatestpassions－veterinaryscience（兽医学）andfashion.Sherecyclesdoghairandchangesitintohigh－enddesignerhandbags.

Dorisloveshernewjobsomuchthatshehopestochangeitintoabusiness—she'

scurrentlyrunningaKickstartercampaigntoraise$15，000towardthatpurpose.That'

sjustenoughmoneytomakeherfirstlineof30handbagsandpayformarketing.

“Thesehandbagsprovethathigh－endcanbemadeeco－friendlyfromyourpetforyou，”shepointedout.“Iturndoghairthatwouldberubbishanywhereelseintheworldintothesehandbags.Iuseittomakethethread.It'

sreusedandrecycled.”

IttakesDorisabout50hourstocompleteeachonehandbagwithoutanymachines.Sheneedsabouttwopoundsoffurperhandbagandsheinsiststhatthecompletedhandbagisassoftasanyotherfur.Itispricedat$1，000，butshesaysthatthepricewouldgodowniftheproductsweretoevergointomassproduction.“IhopeinthefutureIcanmakeitcheaperandsellmuchcheaperforeveryone，”shesaid.

Wearen'

tsurehowwellthesehandbagsareselling，butaccordingtoJaimeCalderbank，own

erofOneLuckyDoginStPetersburg，italldependsonhowmuchpeoplearewillingtodisplaytheirlovefortheirdogs.“Ithinkafewofthemthatreallylovetheirdogswouldlikesomethinglikethat，”shesaid.

Dorishasmanagedtoraisejust$350eversinceshestartedthecampaign，butshehas50daystoreachher$15，000goal.“Ihopepeoplewholikethecampaigncanhelp，”shesaid.“Anycontributioniswelcome.”

【语篇解读】　多丽丝用废弃的狗毛做成高端手提包。

5．Whatdoy