牛津版中考英語閱讀理解實戰(zhàn)演練1

第3章實戰(zhàn)演練

閱讀理解材料浩如煙海，中考英語復(fù)習，時間短，任務(wù)重。為了能讓同學(xué)們脫離題海，更加省時省力

地提高自己的閱讀理解能力，我們特意選編了一些題材新穎、質(zhì)量上乘的閱讀材料。這些材料內(nèi)容豐富，

趣味性強，無論是在設(shè)計上，還是在難度上，都與中考英語試題相當。"會當凌絕頂，一覽眾山小，完成

這些短文及題目之后，再做中考閱讀理解題，就一定能駕輕就熟，游刃有余。

SectionI繽紛自然篇

Passage1

Weknowthatmanyanimalsdonotstayinoneplace.Birds,fishandotheranimalsmovefromone

placetoanotheratacertaintime.Theymovefordifferentreasons:mostofthemmovetofindfoodmore

easily,butothersmovetogetawayfromplacesthataretoocrowded.

Whencoldweathercomes,manybirdsmovetowarmerplacestofindfood.Somefishesgivebirthin

warmwaterandmovetocoldwatertofeed.Themostfamousmigration（遷移）isprobablythemigration

offish,whichiscalled“salmon”.Thisfishisborninfreshwaterbutittravelsmanymilestosaltwater.

Thereitspendsitslife.Whenitisold,itreturnstoitsbirthplaceinfreshwater.Thenitgivesbirthanddies.

InnorthernEurope,thereisakindofmouse.Theyleavetheirmountainhomeswhentheybecometoo

crowded.Theymovedowntothelowland.Sometimestheymoveallthewaytotheseaside,andmany

ofthemarekilledwhentheyfallintothesea.

Recently（近來），scientistshavestudiedthemigrationofakindoflobster（龍蝦）.Everyyear,

whentheseasonofthebadweatherarrives,thelobstersgetintoalonglineandstarttowalk

acrosstheflooroftheocean.Nobodyknowswhytheydothis,andnobodyknowswheretheygo.

So,sometimesweknowwhyhumansandanimalsmovefromoneplacetoanother,butatother

timeswedon't.Maybelivingthingsjustliketotravel.

I.Mostanimalsmovefromoneplacetoanotheratacertaintimeto.

A.givebirthB.enjoywarmerweather

C.findfoodmoreeasilyD.findbeautifulplaces

2.Thefishcalled“salmon”spendsalongtimein.

A.saltwaterB.riversC.freshwaterD.itsbirthplace

3.ThemiceinnorthernEuropemovewhen.

A.theygivebirthB.theplacegetstoocrowded

C.theweatherisbadD.theyhaven'tenoughfood

4.Thelobstersmove.

A.tothefreshwaterB.atacertaintimeC.totheunderseaD.tofindmorefood

5.Whatisthemainideaofthepassage?

A.Animalsmovetofindfoodmoreeasily.

B.Themigrationofthefishcalled“salmon"isthemostfamousmigration.

C.Livingthingsmovefromoneplacetoanotherbecausetheyliketotravel.

D.Sometimesweknowwhyandhowlivingthingsmovefromoneplacetoanother,butsometimes

wedon't.

Passage2

Ifyoulookattheskyonenightandseesomethingmovingandshiningthatyouhaveneverseen

before,itmightbeacomet（彗星）.

Acometsometimeslookslikeastar.Likeaplanet,acomethasnolightofitsown.Itshinesfromthe

sunlightitreflects（反射）.Liketheearth,acometgoesroundthesun,butonamuchlongerpath（軌道）

thantheearthtravels.

Ifacometisn'tastar,whatisitthen?

Somescientiststhinkthatalargepartofacometiswaterfrozenintopiecesoficeandmixedwith

ironandrockdustandperhapsafewbigpiecesofrock.Whensunshinemelts（融化）theiceinthecomet,

greatcloudsofgasgotrailingafterit.Theseclouds,togetherwiththedust,formalongtail.

Manypeopleperhapshaveseenacomet.Howevernooneknowshowmanycometsthereare.

Theremaybemillionsofcomets,butonlyafewcomecloseenoughforustosee.

AnEnglishmannamedEdmundHalley,wholivedfrom1656to1742,foundoutalotaboutthepaths

thatcometstakethroughthesky.Somecometsmoveoutofoursightandnevercomeback.Otherskeep

comingbackatregulartimes.AbigcometthatkeepscomingbackwasnamedafterHalleybecausehe

wastheonewhoworkedoutwhenitwouldcomebackagain.MaybeyouhaveeverseenHalle/s

Cometsbecausethelasttimeitcameclosetothesunandtheearthwasintheyear1986.Thenpeople

allovertheworldwereoutsideatnighttolookatit.YouwillprobablybeabletoseeHalley'sComets

whenitcomesneartheearthagain.

1.Acometislike.

A.sunB.moonC.sunlightD.theearth

2.Alargepartofacometis.

A.waterandrockB.waterfrozenintopiecesoficeandmixedwithiron

C.ice,ironandrockdustD.onlyafewbigpiecesofrock

3.Maybemanypeople.

A.haven'tseenanycometsB.haveseenallcomets

C.haveseenacometatdaytimeD.haveseenacomet

4.Somecometskeepcomingback.

A.atanytimeB.atnoonC.atregulartimesD.atdaytime

5.Halley'sCometscameback.

A.in1990B.in1980C.in1986D.in1989

Passage3

Doyouknowsomethingabouttreerings（q三輪）？Doyouknowtheycantelluswhattheweatherwas

like,sometimesevenhundredsofyearsago?

Atreewillgrowwellinaclimate（氣［英）withlotsofsunshineandrainfall.Andlittlesunshineorrainfall

willlimit（限制）thegrowthofclimatebystudyingthetreerings.Forexample,tofindouttheweatheroften

yearsago,counttheringsofatreefromtheoutsidetotheinside.Ifthetenthringisfarfromtheeleventh

ring,thenweYesurethatitwassunnyandrainymostofthatyear.Ifitisneartotheeleventhring,then

theclimatethatyearwasbad.

Treeringsareimportantnotonlyforstudyingthehistoryofweatherbutalsoforstudyingthehistory

ofman.ManycenturiesagotherelivedalotofpeopleataplaceinNewMexico.Butnowyoucanfind

onlysandthere—notreesandnopeople.Whathappened?

Ascientiststudiedtheringsofdeadtreesthere.Hefoundthatthepeoplehadtoleavebecausethey

hadcutdownallthetreestomakefiresandbuildings.Asallthetreeshadgone,thepeopletherehadto

move.

1.ingoodclimate.

A.TreeringsgrowfarfromeachotherB.Treeringsbecomethinner

C.Treesdon'tneedsunshineorrainfallD.Peoplecancutdownmostofthetrees

2.Thescientistsareinterestedinstudyingtreeringsbecausetreeringscantell.

A.whetheratreewasstrongornotB.whetherpeopletookgoodcareofthetreesornot

C.whethertheclimatewasgoodornotD.howoldthetreeswere

3.Ifyouwanttofindouttheweatheroftwentyyearsago,youshouldstudy.

A.thetwentiethringB.thetenthring

C.thenineteenthringD.thetwenty-firstring

4.Whydidpeopleusuallyliveinplaceswithlotsoftrees?

A.Treescouldtellthechangeoftheweather

B.Treesbroughtlotsofsunshineandrain

C.Treescouldmakeweathernottoohotortoocold

D.Treescouldbeusedforburningandforbuildinghouse

5.ThepeoplehadtoleavetheplaceinNewMexicobecause.

A.hadweatherstoppedthegrowthoftrees

B.theynolongerhadwaterandthelandbecamesand

C.theydidn'thaveenoughtreesforburning

D.therewastoomuchrainthere

Passage4

Allourfoodcomesfromthesoil（土壤）.Someofuseatmeat,butanimalsliveonplants.Ifthese

werenoplants,weshouldhavenoanimalsandmeat.Sothesoilisnecessaryforlife.

Thetopofgroundisusuallycoveredwithgrassorotherplants.Plantsgrowinsoil,whichhasadark

color.Thisdarksoilishumus,deadleaves,deadplantsandanimalwastemakeit,butthistakesalong

time.Whenthehumushasbeenmade,plantscangrowwellinit.

Allsoilneedsfood.Ifwedon'tgiveitany,theplantswillbeweak.Animalswasteisthebestfoodfor

thesoil,butchemicalfertilizers（化肥）arealsoveryuseful.Thesamecropshouldnotbegrowninthe

sameplaceeveryyear;itisbettertohaveadifferentcrop.Achangeofcropandtheuseofagood

fertilizerwillkeepthelandingoodcondition.

Whenthesoilisdry,thewindblowsitaway.Sometimesheavyraincarriesthehumusdowntoa

river.Peopleshouldgrowmoreandmoretreesandgrasstostopwindfromcarryingthehumusaway.It

takeshundredsofyearstomakehumus,andsowemustsaveeverybitofit.Withoutsoil,wherecanwe

growfood?

I.Fromthetext,weknowpeopleliveon.

A.animalB.plantC.meatD.soil

2.Theword“humus”meansinChinese.

A.微生物B.土壤C.腐殖土D.粘土

3.Weshouldtokeepthesoil.

A.givemorefertilizersB.killmoreanimals

C.makemorehumusD.growmoretreesandgrass

4.Weshouldsaveeverybitofhumus,because.

A.ittakesalongtimetomakehumus

B.themorehumusinthesoil,thebetterplantsgrow

C.thechemicalfertilizersareexpensive

D.AandB

5.Thebesttitleofthistextshouldbe

A.Soilisnecessarytopeople

B.Thesamecropcan*tbegrowninthesameplaceeveryyear

C.Soil'sfoodischemicalfertilizers

D.Humusishardtomake

Passage5

Intheseatherearemanyislands.Initswarmwaterstherearesomelittleones.Wecallthem“coral

Islands**.

Acoralislandisverynicetolookat.Itlookslikearingofland（一圈陸地）withtrees,grass,and

flowersonit.Onepartoftheringisopentothewater.Thereisalittleroundlakeinsidetheisland.

Ifyoulookintothislake,youwillseebeautifulcoral.Yousaythinktheyareflowers.Ifyoulookata

pieceofcoral,youwillseemanylittleholesinit.Ineachoftheseholesaverysmallseaanimalhaslived.

Theseseaanimalsmakethecoral.

Theybegantobuildunderthewater.Yearafteryear,thecoralgrewhigherandhigher.Atlastitgrew

outofthewater.

Thentheseabroughtitsmalltreesandsomethingelse.Aftersomeyears,thesethingschangedinto

earth.Sometimesthewindbroughtseeds（和?子）tothisearth.Sometimesbirdsflewoveritandbrought

seedstotheisland.

Thelittleseedsgrew.Inafewyearstherewereplantsallovertheisland.Inafewmoreyearsthere

weretreesgrowingthere.

Soyousee,theseislandswerebuiltlittlebylittle.Theworkerswereverysmall.Dotheynotteachus

alesson?Canyouthinkwhatthelessonis?

1.Inthesea.

A.therearecoralislandsinallplacesB.therearesomecoralislands

C.thewaterisalwayswarmD.wecanseemanyflowers

2.Acoralislandlookslike.

A.aroundcakeB.trees,grassandflowers

C.aringoflandD.aroundlake

3.Thereareintheholesincorals.

A.flowersB.littlecoralsC.grassD.seaanimals

4.Howdidseedsoftrees,grassandflowerscometothecoralislands?

A.Thewindandbirdsbroughtthemtothecoralislands

B.Onlythewindbroughtthemthere

C.Peoplebroughtthemthere

D.Fishesbroughtthemthere

5.Fromthestorywelearnthat.

A.smallworkerscan'tdobigthings

B.onlybigworkerscandobigthings

C.smallworkerscandobigthingsiftheyworkhardworkandworkalongtime

D.allsmallthingscandobigthings

Passage6

Whensomeplatesoftheearthmovesuddenly,anearthquakehappens.Manyearthquakesbegin

underthesea.Earthquakesmayhappenanywhereontheearth.Theyoftenhappennearthemountains.

Duringanearthquake,theshakingsmakerocksrisesuddenlyandevencrack（斷裂）open.Houses

fall,peoplearekilledorhurt,andsometimesthewholevillagesorcitiesaredestroyed.

Canwedosomethingtokeepourselvessafefromearthquakes?Scientistshavestudied

earthquakesandmakemapsthatshowthe"earthquakebelts".Inareas（地區(qū)）inthesebelts,itspossible

forearthquakestohappen.Intheseareasweshouldbuildstronghousestofightagainstearthquakes.

Inthefuture,scientistsw川beabletotellwhenandwhereanearthquakewillbebeforetheyhappen.

Theycanalsotellpeoplewhattodoandhowtodoit.

1.Alargenumberofearthquakesoftenhappens.

A.intheareaB.onlandC.atnightD.nexttomountains

2.Thereasonforanearthquakeis.

A.theresultofrockplatesuddenmovement

B.thattherearesomanyplatesontheearth

C.thattheseaistoodeep

D.rocks'crackingopen

3.Amapshowingtheearthquakebeltswilltellpeople.

A.whatkindofhousestobuild

B.whatkindofhousescanstayupinanearthquake

C.whereearthquakemayhappen

D.howtokeepthemselvessafeduringanearthquake

4.Inthefuturewellbenolongersoafraidofearthquakes.

A.withthehelpofscientists1exactprediction（預(yù)報）

B.becauseofamapshowingthe"earthquakebelts”

C.becausewecanguessthedateandplaceofearthquakes

D.asscientistsknowwhattodoandhowtodoit

5.Choosethebesttitlefrothepassage.

A.AnEarthquakeB.AScientistandanEarthquake

C.HowtoFightAgainstEarthquakeD.EarthquakesTodayandTomorrow

Passage7

Itseemstousthattheearthstandsquitestill（靜i上的）.Butitisreallymovingallthetime.Itturns

aroundamake-believelinethroughitscenter.Wecallthismake-believelinetheearth'saxis（地軸）.The

twoendsoftheearth'saxisarecalleditspoles（極）.Theearthtravelstwenty-fourhoursarounditsaxis

once.

Welookatthesunandsayit“travels“acrossthesky,butthesundoesn'treallydoso.Theturningof

theearthmakesusfeelasifthesunweremovingacrossthesky.Wecan'tseethattheearthismoving

becauseeverythingelseontheearthisturningwithus.Astheearthturnsaroundeverytwenty-four

hours,firstonehalffacesthesunandthentheotherhalf.Whenourhalfoftheearthisfacingthesun,we

sayitis“day”.Whenourhalfisawayfromthesun,wesayitis“night”.Itistheturningoftheearththat

tellsuswhentogotobedandwhentogetup.

I.Themeaningof“amake-believeline"isHalinethatn.

A.iscalledpoleB.wecan'tsee

C.anyonecanseeD.wecanmakeandbelieve

2.Ittakestheearthtoturnarounditsaxisonce.

A.aweekB.amonthC.12hoursD.24hours

3.Usuallywesay,uThesunrisesintheeastandsetsinthewest."Infact,thesun.

A.doesnotmoveB.ismovingallthetime

C.movessometimesD.istooheavytomove

4.Wecan'tseetheearthmovingbecause.

A.theearthstandsstillB.everythingontheearthismovingwithus

C.theearthissmallerthanthesunD.theearthgoesonlyatnight

5.Whenourpartoftheearthturnsawayfromthesunwehave""，andwhenourpartfaces

thesunwehave"

A.day;nightB.day;dayC.night;dayD.night;night

Passage8

Weknowthemosquitoverywell.Mosquitoesflyeverywhere.Theycanbefoundalmostalloverthe

world,andtherearemorethan2,500kindsofthem.

Noonelikesthemosquito.Butthemosquitomaydecidethatshelovesyou.She?Yes,she.It'strue

thatmalemosquitodoesn'tbite（咬）andonlythefemalemosquitobitesbecausesheneedsbloodtolay

eggs.Sheisalwayslookingforthingsorpeopleshewantstobite.Ifshelikeswhatshefinds,shebites.

Butifshedoesn'tlikeyourblood,shewillturntosomeoneelseformoredeliciousblood.Nexttimea

mosquitobitesyou,justrememberyouarechosen.You'redifferentfromtheothers!

Ifthemosquitolikesyou,shelandsonyourbodywithoutlettingyouknow.Shebitesyousoquickly

andquietlythatyoumaynotfeelanythingdifferent.Aftershebites,youwillhaveanitch（癢）onyour

bodybecausesheputssomethingfromhermouthtogetherwithyourblood.Bythetimetheitching

begins,andshehasflownaway.

Andthenwhathappens?Well,afterherdeliciousdinner,themosquitofeelstired.Shejustwantsto

findaplacetohaveagoodrest.There,onaleaforawall,shebeginstolayeggs,hundredsofeggs.

1.“Mosquito”meansinChinese.

A.蒼蠅B.蜻蜓C.跳蚤D.蚊子

2.Weknowmosquitoesverywellbecause.

A.theycanbefoundeasilyB.theyflyhereandthere

C.therearemanykindsofthemD.theycanfly

3.Ifthemosquitodoesn'tbiteyou,itwill.

A.getangrywithyouB.beafraidofyou

C.makealotofnoiseD.chooseanotherone

4.Themosquitobitesyou.

A.whenyou'reasleepB.becauseyouhavechooseit

C.tooquicklytoletyouknowD.butdoesn'tlikeyou

5.Whichofthefollowingsentencesiswrong?

A.Theitchingbeginsafterthemosquitobitesyou.B.Youfeelterriblewhenthemosquitobitesyou.

C.Mosquitoesusebloodtolayeggs.D.Allthemosquitoesdon'tliketobitepeopleforblood.

Passage9

We'vetalkedaboutsnails（蝸牛）andtheirslowmove.Butmuchofthetimesnailsdon'tmoveatall.

Theyareintheirshells（殼）一sleeping.

Hotsunwilldryoutasnaifsbody.Soattheleastsignofhotsun,asnaildrawsitsbodyintohisshell.

Asnailwilldieinaheavyrain.Sowhenitrains,asnaildoesthesamething,too.Asnailcansleepforas

longasitneedsto.Itspendsallthewintermonthsinitsshell,asleep.

Inthespringthesnailwakesup.Itsbody,aboutthreeincheslong,comesoutfromtheshell.When

hungry,thesnaillooksforfood.Itseyes,attheendofthetopfeelers（觸角），areveryweak.Butitssense

（）就覺）ofsmellisverystrong.Ithelpsthesnailtofindfoodandthenewgreens.

Asnaifsmouthisnobiggerthanthepointofapin(大頭針).Yetithas256,000teeth!Theteethare

verysmall,andyoucan'tseethem.Ifyouputasnailinahardpaperbox,itw川eatitswayout!Andifa

snailwearsoutitsteeth,itwillgrownewones.

1.Asnail.

A.movesmoreslowlyatnightB.hasthousandsoffeet

C.doesn'tmoveatallD.sleepsmuchofthetime

2.Inthesentence“Asnaildrawsitsbodyintoitsshell”,theword"draw"means.

A.tomakewithapencilB.topushC.topullD.tomoveaway

3.Fromthestory,weknow.

A.asnaiPsshellisverythinB.asnailcan'tseewell

C.asnaifsnoseisquiteshortD.asnaifsbodychangesindifferentseasons

4.Asnailgoestosleepwhen.

A.itfeelshungryB.itisputintoapaperbox

C.springiscomingD.itrainsheavily

5.Whichofthefollowingiswrong?

A.Inwinterthesnaildoesn'teatormove.B.Asnaildoesnllikelivingunderthesun.

C.Thesnail'steethcan'tbewornout.D.ThesnaiPsnosehelpstofindfood.

Passage10

Jupiter'sMoonsandHowTheyTravel

ThemanymoonsofJupitertravelaroundtheplanetindifferentdirections(方,向).

Jupiteristhelargestplanetinoursolarsystem.Overtheyears,scientistshavefoundthatJupiter

hasitsownsmallsolarsystem.Earthhasonemoon.Jupiterhasatleastsixteenandprobablymore.

Sincetherearesomanymoons,scientistsbegantonumberthem.Thenumerals(numbers)tellthe

sequence,ororder,inwhichthemoonswerefound.Theywereslowertonamethemoons.Allof

Jupiter'smoonsnowhaveanameaswellasanumber.

Thefirstfivemoonstobediscoveredareknownasthe"innermoons”.Buttheyarenottheclosestto

theplanet.Theclosestisonly127,600kilometersawayfromJupiter.Alltheinnermoonscircletheplanet

incounter-clockwisedirection,thatis,oppositeofthehandsofaclock.

Jupiter*smiddlegroupofmoonsareatleast11,100,000kilometersfromtheplanet.Theyalsomove

inacounter-clockwisemotion(moving).Thefourfarthestmoonsareatleast20,700,000kilometersaway.

Thesearecalled"outermoons".Theycircleinaclockwisemotion.

Howmanymoremoonsdoyouthinkwillbediscovered?

1.Whatdoes“solarsystem"inthisarticlemean?

A.銀河系B.宇宙空間C.流星雨D.太陽系

2.Thingsthattravelinthesamedirectionasthehandsofaclockaresaidtobetravelingina.

A.clockwisedirectionB.counter-clockwisedirection

C.samedirectionD.differentdirection

3.Jupiter'sgroupofmoonstravelinaclockwisedirection.

A.planetsB.innerC.middleD.outer

4.ThenumbersgiventoJupiter'smoonstell.

A.theorderinwhichtheywerediscoveredB.theorderinwhichtheytravel

C.theorderoftheirdistancefromJupiterD.theorderofnames

5.Accordingtothepassage,whichofthefollowingstatementsistrue?

A.NoneofJupiter'smoonshavenames.B.MostofJupiter'smoonscircleclockwise.

C.Jupiter'sinnermoonswerediscoveredfirst.D.Jupiteristhenearestplanettotheearth.

6.HowfarawayarethemiddlegroupofmoonsfromJupiter?

A.It*snotmentioned.B.11,100,000kilometersaway.

C.127,600kilometersaway.D.20,700,000kilometersaway.

Passage11

WHYISTHESUNIMPORTANT?

Thesunisahuge,hot,brightstar.ItisimportantbecausewithoutittherewouldbenolifeonEarth.

Thesungivesuslightandheat.

Alllivingthingsneedlightandheatfromthesuntolive.Plantsneedlightandheattogrow.Theyuse

thelightfromthesuntomakefood.Wecannotmakeourownfood,butplantscan.Allthefoodweeat

comesfromplantsinafoodchain（鏈）whichstartswiththesun.Forexample,

Animalsneedsunlight,too.Justlikeus,theirfoodcomesfromafoodchainwhichbeginswiththe

sunandtheplants.

sun—>leaf->caterpillar（毛蟲）-bird

sun一seaweed（海藻）—smallfish->whale（鯨）

Sunlightmeanswecanseeduringtheday.Iftherewasnosun,itwouldbedarkallthetime.Even

whentheskyiscloudy,thesunlightisverystronganditshinesthroughtheclouds.

1.Whichwordstelluswhatthesunislike?

A.Huge.B.Hot.C.Bright.D.Allabove.

2.Whatarethetwomainthingsthesungivesus?

A.Lightandheat.B.Heatandeggs.C.Cornandlight.D.Wheatandbread.

3.Whycanwestillseeduringthedaywhentheskyiscloudy?

A.Becausewecanseealldayandallnight.

B.Becausethesuncan'tgiveuslightalldaylong.

C.Becausethesunlightcanshinethroughtheclouds.

D.Becausewecan'tseeatnight.

4.AIIthefoodweeatcomesfrom.Anditstartswiththe.

A.plants;earthB.afoodchain;sun

C.food;sunD.plants;star

5.lnwhatwaydoyouthinkthesuncannotbeharmful（有害的）？

A.Thesuncandoharmtoyoureyesandskin.

B.Itcanmakeriverstoodry.

C.WithoutittherewouldbenolifeonEarth.

D.Hotsunondrylandcancausefires.

Passage12

Mostanimalsonlyhaveanimalsofadifferentkindforfood.Butsometimestwokindsofanimals

cometogetherinapartnership（伙伴關(guān)系）whichisgoodforthem.Youmayhavenoticedsomebirdson

thebacksofsheep.Thisisnotbecausetheywantaride,butbecausetheyfindeasyfoodintheparasites

（寄生蟲）onsheep.Thesheepletthebirdsdosobecausetheycanstoptheparasitesfromtroubling

them.Sothoughtheycandowithitbythemselves,theycandobettertogetherwitheachother.

Sometimesananimalhasaplantpartner.Therelationshipdevelopsuntilthetwopartnerscannotdo

withouteachother.Thisissoincoralsofthesea.Insidetheirbodiestheyhaveverysmallplants,which

actas“cleaners",takingtheuselessthingsfromthecoralandgivingoxygeninreturn.Thatiswhatthe

animalneedstolive.Iftheplantsarekilled,orareevenkeptfromreceivinglightsothattheycannotlive

asusual,thecoralswilldie.

1.Somebirdsliketositonasheepbecause.

A.theycaneatitsparasitesB.theyenjoytravelingwiththesheep

C.theycanrtlivewithoutitsparasitesD.theywanttofindthewarmplace

2.Theunderlinedword“they"inthefirstparagraphmeans.

A.birdsandparasitesB.birdsandsheep

C.parasitesandsheepD.birds,parasitesandsheep

3.Welearnfromthepassagethatcoralsneedplantsfor.

A.friendsB.lightC.foodD.oxygen

4.TheChinesefortheword“oxygen"is.

A.氧氣B.空氣C.廢氣D.二氧化碳

5.Whatisthesecondparagraphmainlyabout?

A.Someanimalsandplantscannotlivewithouteachother.

B.Someanimalsandplantscannotdeveloptheirfriendshipeasily.

C.Someplantseateachother.

D.Someanimalslivebettertogether.

實戰(zhàn)演練答案詳解繽紛自然篇

Passage1

【答案與解析】這篇短文講述了某些生物的遷移這一自然現(xiàn)象，并分析了遷移的原因?？茖W(xué)家們最近

又研究了龍蝦海底成群結(jié)隊遷移的現(xiàn)象。它們選擇在每年天氣不好的季節(jié)里進行遷移，其中的原因及遷移

的目的，科學(xué)家尚未弄清楚。

1.C.起初一看，四個選項好像都在文中敘述過，但仔細分析題干中的“mostanimals”這一關(guān)鍵詞語，便

可排除其它選項。在第一段最后一句中可找到答案的出處。

2.A.有關(guān)“salmon”的情況在第二自然段中作了敘述。這種魚出生在淡水中，后不到咸水地區(qū)居住，在

那里度過一生中絕大部分時光。到老了以后又回到它出生之時的淡水之中。仔細分析題干中的“spendalong

life”和短文中的關(guān)鍵句“Thereitspendsitslife.”便可斷定答案為A,

3.B?"theyleavetheirmountainhomeswhentheybecometoocrowded."一句是答案的出處。

4.B。該題答案的出處是文章的第三自然段。文中說，龍蝦是在海底成群結(jié)隊游動的時間是每年天氣不

好的季節(jié)，目的及它們到哪里去誰也不知道，余項與文章敘述不符。

5.D,文中第二自然段敘述了“salmon”和北歐的?種老鼠遷移方向和原因；第三自然段敘述了龍蝦的游

動情況，但原因不知道。最后一段開頭一句正是對本文主題的概括。

Passage2

【答案與解析】本文向我們介紹了有關(guān)彗星方面的知識。與地球一樣，彗星也是繞太陽旋轉(zhuǎn)的，它本

身不發(fā)光，靠反射太陽的光而發(fā)亮。短文中還介紹了彗星的成因，它拖著的長尾巴是如何形成的以及著名

的哈雷彗星名字的由來。

1,D?"Liketheearth,acometgoesroundthesun,but..."是判斷本題的根據(jù)。

2.Co根據(jù)“...iswaterfrozenintopiecesoficeandmixedwithironandrockdustandperhapsafew

bigpiecesofrock.”這句話即能得出答案。

3.D..由第五段的首句"Manypeopleperhapshaveseenacomet.”可知。

4.Co*'Somecometsmoveoutofoursightandnevercomeback.Otherskeepcomingbackatregular

times.”一句是答案的出處。

5.Co哈雷彗星每七十六年才能看到一次。再結(jié)合“...thelasttimeitcameclosetothesunandtheearth

wasintheyear1986.”這句話的意思，即可得到答案。

Passage3

【答案與解析】這篇短文介紹的是有關(guān)植物年輪方面的小知識。由于樹木的生長要受到陽光、降水等

方面的影響，從一,棵樹上的年輪分布情況匕可以推斷出樹木所生長地方以前的氣候狀況。年輪不僅對科

學(xué)家研究地球上的氣候環(huán)境有非常重要的參考價值，而且更為有趣的是，它還能幫助科學(xué)家們研究人類的

歷史呢。

1.Ao*'lfthetenthringisfarfromtheeleventhring,thenwe'resurethatitwassunnyandrainymostof

thatyear.”一句即是答案所在。

2.Co文章第?段"DoyouknowtheycantelluswhattheweatherwasIke…”和第三段的首句“Tree

ringsareimportantnotonlyforstudyingthehistoryofweather…”都有所暗示。

3.Ao答案就在“…tofindouttheweatheroftenyearsago,counttheringsofatreefromtheoutside

totheinside.Ifthetenthringisfarfromtheeleventhring…”一句中。

4,Do短文最后?段說，人們建房做飯都離不開樹木。人所居住的周圍環(huán)境中如果沒有了樹木，那么人

也就遷移了。所以答案為D。

5.B0根據(jù)最后兩段所敘述的內(nèi)容，再聯(lián)系植物對人類的重要作用，則不難得出答案。

Passage4

【答案與解析】土壤是人類賴以生存的自然條件之-o沒有了土壤或者是土壤受到了較為嚴重的破壞，

就會直接危及到人類的生存。本文在闡述土壤的成因、特性和重要性之后，呼吁大家都要保護土壤。

1.D..綜合考慮第?段的意思，唯有D才是最恰當?shù)倪x項。

2.Co根據(jù)"Thisdarksoilishumus,deadleaves,deadplantsandanimalwa