牛津版中考英語閱讀理解實(shí)戰(zhàn)演練1

第3章實(shí)戰(zhàn)演練

閱讀理解材料浩如煙海，中考英語復(fù)習(xí)，時(shí)間短，任務(wù)重。為了能讓同學(xué)們脫離題海，更加省時(shí)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(qiáng)，無論是在設(shè)計(jì)上，還是在難度上，都與中考英語試題相當(dāng)。"會(huì)當(dāng)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(bào)）

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(shí)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(duì)遷移的現(xiàn)象。它們選擇在每年天氣不好的季節(jié)里進(jìn)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(gè)選項(xiàng)好像都在文中敘述過，但仔細(xì)分析題干中的“mostanimals”這一關(guān)鍵詞語，便

可排除其它選項(xiàng)。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(shí)光。到老了以后又回到它出生之時(shí)的淡水之中。仔細(xì)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(duì)游動(dòng)的時(shí)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(xiàng)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(dòng)情況，但原因不知道。最后一段開頭一句正是對(duì)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(shí)。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(zhǎng)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(shí)。由于樹木的生長(zhǎng)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(zhǎng)地方以前的氣候狀況。年輪不僅對(duì)科

學(xué)家研究地球上的氣候環(huán)境有非常重要的參考價(jià)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(duì)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(yán)重的破壞，

就會(huì)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(hù)土壤。

1.D..綜合考慮第?段的意思，唯有D才是最恰當(dāng)?shù)倪x項(xiàng)。

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