人教版高中英语选修7Unit3单元检测.docx
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人教版高中英语选修7Unit3单元检测.docx
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人教版高中英语选修7Unit3单元检测
单元检测3
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Ⅰ.阅读理解
A
About97%oftheworld'swaterissaltyandisfoundinouroceansandseas.But,aswecan'tdrinkseawater,howcanitbeimportant?
Everypartofourseasandoceanscontainsanamazingnumberofanimalsandfishthatliveatdifferentoceandepths.Mostofthedifferentspeciesofanimalsandfishdependonsimpleplantsfortheirfood.Thesesimpleplantscalledalgae(海藻)driftnearthesurfaceoftheoceanandusesunlighttoturncarbondioxideandwaterintofoodandoxygen.Infact,algaeproduceoverhalfoftheoxygenpeoplebreathe.Howimportantseawateris!
Eachplantoranimalinourseasandoceansisanimportantlinkinafoodchain.Thealgaeareeateninlargeamountsbymicroscopicanimals,whichareinturnconsumedbylargeranimals.Thesefoodchainsaredelicatelybalanced.
Thebadnewsaboutthefoodchainsintheoceansisthattheyareunderthreatbecauseofman.Peopleoncethoughtthattheoceansweresobigthatitdidn'tmatterifwedumpedrubbishintothemorcaughthugequantitiesoffishandwhalesforfood.Butwenowknowthisisnottrue,andfishstocksintheoceanshavestartedtodrop.
Thankfully,theworldistakingstepstoprotectthefutureofouroceansbyintroducinginternationalagreementstoprotectmarinehabitats.Mostcountrieshaveintroducedfishingrestrictionstoprotectfishstocksintheoceans,andnewtechniquesarebeingpioneeredtocopewithpollution.Finally,theimportanceofprotectingoceansisbeingmadeknowntomorepeople.Thisisjustthebeginningofalongprocesstoprotecttheoceansforourfuture.Wedependontheoceansforfishwhichareanimportantpartofthehumandiet.Howimportantseawateris!
1.Whichofthefollowingistheproperorderofthefoodchain?
A.smallanimals→algae→microscopicanimals→largeanimals→man
B.algae→microscopicanimals→largeanimals→largeranimals→man
C.smallanimals→algae→largeanimals→microscopicanimals→man
D.microscopicanimals→algae→largeanimals→largeranimals→man
2.Fromthepassage,welearnthat________.
A.mostfishandseaanimalsliveatthesurfaceoftheseas
B.itisverydifficulttobreakthebalanceofafoodchain
C.excessivefishinghascausedthedecreaseinfishstock
D.itwon'tbelongbeforetheproblemsconcerningoceanswillbesolved
3.WhichofthefollowingisNOTawaybeingusedtoprotectoceans?
A.Theuseofinternationalagreements.
B.Forbiddingfishingtoprotectfishstocks.
C.Theuseofnewtechniques.
D.Raisingpeople'sawarenessoftheneedtoprotectoceans.
4.Whatwouldbethebesttitleofthepassage?
A.Theimportanceofseawater
B.Lifeintheoceans
C.Howtoprotectfoodchains
D.Howtodealwithseawaterpollution
B
Somescientistssaythatanimalsintheoceansareincreasinglythreatenedbynoisepollutioncausedbyhumanbeings.
Thenoisethataffectsseacreaturescomesfromanumberofhumanactivities.Itiscausedmainlybyindustrialunderwaterexplosions,oceandrillingandshipengines.Suchnoisesareaddedtonaturalsounds.Thesesoundsincludethebreakingoficefields,underwaterearthquakes,andsoundsmadebyanimalsthemselves.
Decibels(分贝)measuredinwateraredifferentfromthosemeasuredonland.Anoiseofonehundredandtwentydecibelsonlandcausespaintohumanears.Inwater,adecibellevelofonehundredandninetyfivewouldhavethesameeffect.
Somescientistshavesuggestedsettinganoiselimitofonehundredandtwentydecibelsintheoceans.Theyhaveobservedthatnoisesatthatlevelcanfrightenandconfusewhales(鲸鱼).
AteamofAmericanandCanadianscientistsdiscoveredthatloudernoisescanseriouslyinjuresomeanimals.
Theresearchteamfoundthatpowerfulunderwaterexplosionswerecausingwhalesintheareatolosetheirhearing.Thisseriouslyaffectedthewhales'abilitytoexchangeinformationandfindtheirway.Someofthewhalesevendied.Theexplosionshadcausedtheirearstobleedandbecomeinfected(被感染的).
Manyresearcherswhoseworkdependsonoceansoundsareagainstalimitofonehundredandtwentydecibels.Theysaysuchalimitwouldmeananendtoimportantindustrialandscientificresearch.
Scientistsdonotknowhowmuchandwhatkindsofnoisesareharmfultooceananimals.However,manyscientistsdon'tthinkthatnoiseisagreaterdangerthantheybelieved.Theywanttopreventnoisesfromharmingcreaturesintheocean.
5.Accordingtothepassage,whichofthefollowingisincreasinglydangeroustoseacreatures?
A.Thesoundofcars. B.Thesoundofvoices.
C.Manmadenoisepollution.D.Thesoundofsteps.
6.Accordingtothepassage,naturalsoundsincludeallofthefollowingEXCEPT________.
A.soundsmadebyanimalsthemselvesB.oceandrilling
C.underwaterearthquakesD.thebreakingoficefields
7.Whichofthefollowingisdiscussedinthethirdparagraph?
A.Thesamenoiselevelproducesadifferenteffectonlandandintheocean.
B.Differentplacesmayhavedifferenttypesofnoises.
C.Thedecibelisnotarightunit(单位)formeasuringunderwaternoise.
D.Differentoceananimalsmayhavedifferentreactionstonoises.
8.Accordingtothepassage,whatwillscientistsmostprobablydointhefuture?
A.Theywillworkhardtoreduceoceannoisepollution.
B.Theywillprotectanimalsfromharmfulnoises.
C.Theywilltrytosetalimitof120decibels.
D.Theywillstudytheeffectofoceannoisepollution.
C
Futurologists(未来学家)predictthatlifewillprobablybeverydifferentin2050.
TVchannelswillhavedisappeared.Instead,peoplewillchooseaprogramfroma“menu”andacomputerwillsendtheprogrammedirectlytothetelevision.Today,wecanusetheWorldWideWebtoreadnewspaperstoriesandseepicturesonacomputerthousandsofkilometersaway.By2050,music,films,programs,newspapers,andbookswillcometousbycomputer.
Carswillrunonnew,cleanfuelsandtheywillgoveryfast.Carswillhavecomputerstocontrolthespeedandtherewon'tbeanyaccidents.Today,manycarshavecomputersthattelldriversexactlywheretheyare.By2050,thecomputerwillcontrolthecaranddriveittoyourdestination.Spaceplaneswilltakepeoplehalfwayaroundtheworldin2hours.Today,theUnitedStatesSpaceShuttlecangointospaceandlandonEarthagain.By2050,spaceplaneswillflyallovertheworldandpeoplewillflyfromLosAngelestoTokyoinjusttwohours.
Robotswillhavereplacedpeopleinfactories.Manyfactoriesalreadyuserobots.Bigcompaniespreferrobots—theydon'taskforpayrisesorgoonstrikes,andtheywork24hoursaday.By2050,wewillseerobotseverywhere—infactories,schools,offices,hospitals,shopsandhomes.
Medicaltechnologywillhaveconqueredmanydiseases.Today,thereareelectronicdevicesthatconnectdirectlytothebraintohelppeoplehear.By2050,wewillbeabletohelpblindanddeafpeopletoseeandhearagain.
Scientistswillhavediscoveredhowtocontrolgenes.Scientistshavealreadyproducedclonesofanimals.By2050,scientistswillbeabletoproduceclonesofpeople,anddecidehowtheylook,howtheybehaveandhowmuchintelligencetheyhave.Scientistswillbeabletodothesethings,butshouldthey?
9.WhichofthefollowingcanNOTberealizedtoday?
A.Readingnewspapersonacompute.
B.Creatingclonedanimals.
C.MakingaspaceshuttlegointospaceandlandonEarthagain.
D.ChoosingTVprogramfreelyfroma“menu”.
10.Accordingtothetext,somebigcompaniespreferrobotstohumanworkersbecausehumanworkers________.
A.canwork24hoursadayB.oftenaskformorepay
C.arenotcleverenoughD.areoftenlateforwork
11.Fromthe5thparagraphwecaninferthat________.
A.therewillbenoblindanddeafpeopleby2050
B.fewdiseasescanattackpeople
C.electronicdeviceswillbeconnecteddirectlytothebraintohelppeoplehear
D.medicaltechnologywillbemoreeffectiveby2050
12.What'stheauthor'sattitudetowardsthecloningtechnology?
A.Theauthordoesnotagreeontheuseofcloningtechnology.
B.Theauthorthinkshumancloningisimpossible.
C.Theauthordoesnotreallysupporttheideaofhumancloning.
D.Theauthorisquiteexcitedabouthumancloning.
D
MydaughterAlisawasbornblindinherrighteyeandwasbullied(欺侮)prettyseverelyinschool.SoIquittedmyjobasababysitterandthenschooledmydaughterheartandsoulathome.
Ayearagoaboyof14befriendedmydaughteronFacebookafterreadingsomethingAlisawroteaboutbullying.TodayhemessagedherandaskedifshewouldlikesixticketstoaColoradoRockiesbaseballgame.Theyhavenevermetinpersonbutshesaid,“Sure!
Thatwouldbegreat.”
ThenIreceivedacallfromhismotherexplainingwhyhersonhadchosenmydaughter.Shesaidhethoughtmydaughterdeservedthembecauseofallthegoodshedoesinthecommunity.Herson,sheexplained,hadexperiencedasimilarsituationandwasalsohomeschooled.
Whatshesaidistrue.NowmydaughterAlisacontinuestoteachgroupsofgirlsintroubleinourcommunityhowtolookwithinthemselvesforthepositiveandhowtobetheirownpersons.
Everythingtakenintoconsideration,wedecidedtomeetthemotherandtheboyatalocalbikeshop.Aftermeeting,theboyapproachedmycarandmydaughtergavehimahugandthankedhimforhisgenerosity.Shetoldhimthatshehadneverbeentoabaseballgameandthatshewasgoingtotakeherentirefamily,includingmyself,herdad,littlesister,hercousinand
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