中考閱讀理解訓(xùn)練題

中考閱讀理解訓(xùn)練題

Passage1

Weknowthatmanyanimalsdonotstayinoneplace.Birds,fishand

otheranimalsmovefromoneplacetoanotheratacertaintime.They

movefordifferentreasons:mostofthemmovetofindfoodmoreeasily,

butothersmovetogetawayfromplacesthataretoocrowded.

Whencoldweathercomes,manybirdsmovetowarmerplacestofind

food.Somefishesgivebirthinwarmwaterandmovetocoldwaterto

feed.Themostfamousmigration（遷移）isprobablythemigrationoffish,

whichiscalled“salmon”.Thisfishisborninfreshwaterbutittravels

manymilestosaltwater.Thereitspendsitslife.Whenitisold,itreturns

toitsbirthplaceinfreshwater.Thenitgivesbirthanddies.Innorthern

Europe,thereisakindofmouse.Theyleavetheirmountainhomeswhen

theybecometoocrowded.Theymovedowntothelowland.Sometimes

theymoveallthewaytotheseaside,andmanyofthemarekilledwhen

theyfallintothesea.

Recently（近來(lái)），scientistshavestudiedthemigrationofakindof

lobster（龍蝦）.Everyyear,whentheseasonofthebadweatherarrives,

thelobstersgetintoalonglineandstarttowalkacrossthefloorofthe

ocean.Nobodyknowswhytheydothis,andnobodyknowswherethey

go.So,sometimesweknowwhyhumansandanimalsmovefromone

placetoanother,butatothertimeswedon't.Maybelivingthingsjustlike

totravel.

l.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.tofind

morefood

5.Whatisthemainideaofthepassage?

A.Animalsmovetofindfoodmoreeasily.

B.Themigrationofthefishcalled“salmon”isthemostfamous

migration.

C.Livingthingsmovefromoneplacetoanotherbecausetheyliketo

travel.

D.Sometimesweknowwhyandhowlivingthingsmovefromoneplace

toanother,butsometimeswedon't.

Passage2

Ifyoulookattheskyonenightandseesomethingmovingandshining

thatyouhaveneverseenbefore,itmightbeacomet（彗星）.

Acometsometimeslookslikeastar.Likeaplanet,acomethasnolight

ofitsown.Itshinesfromthesunlightitreflects（反射）.Liketheearth,a

cometgoesroundthesun,butonamuchlongerpath（軌道）thanthe

earthtravels.

Ifacometisn'tastar,whatisitthen?

Somescientiststhinkthatalargepartofacometiswaterfrozeninto

piecesoficeandmixedwithironandrockdustandperhapsafewbig

piecesofrock.Whensunshinemelts（融化）theiceinthecomet,great

cloudsofgasgotrailingafterit.Theseclouds,togetherwiththedust,

formalongtail.

Manypeopleperhapshaveseenacomet.Howevernooneknowshow

manycometsthereare.Theremaybemillionsofcomets,butonlyafew

comecloseenoughforustosee.

AnEnglishmannamedEdmundHalley,wholivedfrom1656to1742,

foundoutalotaboutthepathsthatcometstakethroughthesky.Some

cometsmoveoutofoursightandnevercomeback.Otherskeepcoming

backatregulartimes.Abigcometthatkeepscomingbackwasnamed

afterHalleybecausehewastheonewhoworkedoutwhenitwouldcome

backagain.MaybeyouhaveeverseenHalley'sCometsbecausethelast

timeitcameclosetothesunandtheearthwasintheyear1986.Then

peopleallovertheworldwereoutsideatnighttolookatit.Youwill

probablybeabletoseeHalley'sCometswhenitcomesneartheearth

again.

l.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（年輪）？Doyouknowthey

cantelluswhattheweatherwaslike,sometimesevenhundredsofyears

ago?

Atreewillgrowwellinaclimate（氣候）withlotsofsunshineand

rainfall.Andlittlesunshineorrainfallwilllimit（限制）thegrowthof

climatebystudyingthetreerings.Forexample,tofindouttheweatherof

tenyearsago,counttheringsofatreefromtheoutsidetotheinside.If

thetenthringisfarfromtheeleventhring,thenwe'resurethatitwas

sunnyandrainymostofthatyear.Ifitisneartotheeleventhring,then

theclimatethatyearwasbad.

Treeringsareimportantnotonlyforstudyingthehistoryofweather

butalsoforstudyingthehistoryofman.Manycenturiesagothereliveda

lotofpeopleataplaceinNewMexico.Butnowyoucanfindonlysand

there—notreesandnopeople.Whathappened?

Ascientiststudiedtheringsofdeadtreesthere.Hefoundthatthe

peoplehadtoleavebecausetheyhadcutdownallthetreestomakefires

andbuildings.Asallthetreeshadgone,thepeopletherehadtomove.

1.ingoodclimate.

A.Treeringsgrowfarfromeachother

B.Treeringsbecomethinner

C.Treesdon'tneedsunshineorrainfall

D.Peoplecancutdownmostofthetrees

2.Thescientistsareinterestedinstudyingtreeringsbecausetreeringscan

tell.

A.whetheratreewasstrongornot

B.whetherpeopletookgoodcareofthetreesornot

C.whethertheclimatewasgoodornot

D.howoldthetreeswere

3.Ifyouwanttofindouttheweatheroftwentyyearsago,youshould

study.

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,but

animalsliveonplants.Ifthesewerenoplants,weshouldhavenoanimals

andmeat.Sothesoilisnecessaryforlife.

Thetopofgroundisusuallycoveredwithgrassorotherplants.Plants

growinsoil,whichhasadarkcolor.Thisdarksoilishumus,deadleaves,

deadplantsandanimalwastemakeit,butthistakesalongtime.When

thehumushasbeenmade,plantscangrowwellinit.

Allsoilneedsfood.Ifwedon'tgiveitany,theplantswillbeweak.

Animalswasteisthebestfoodforthesoil,butchemicalfertilizers（化月巴）

arealsoveryuseful.Thesamecropshouldnotbegrowninthesame

placeeveryyear;itisbettertohaveadifferentcrop.Achangeofcropand

theuseofagoodfertilizerwillkeepthelandingoodcondition.

Whenthesoilisdry,thewindblowsitaway.Sometimesheavyrain

carriesthehumusdowntoariver.Peopleshouldgrowmoreandmore

treesandgrasstostopwindfromcarryingthehumusaway.Ittakes

hundredsofyearstomakehumus,andsowemustsaveeverybitofit.

Withoutsoil,wherecanwegrowfood?

1.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.Initswarmwaterstherearesome

littleones.Wecallthem“coralIslands".

Acoralislandisverynicetolookat.Itlookslikearingofland（一圈

陸地）withtrees,grass,andflowersonit.Onepartoftheringisopento

thewater.Thereisalittleroundlakeinsidetheisland.

Ifyoulookintothislake,youwillseebeautifulcoral.Yousaythink

theyareflowers.Ifyoulookatapieceofcoral,youwillseemanylittle

holesinit.Ineachoftheseholesaverysmallseaanimalhaslived.These

seaanimalsmakethecoral.

Theybegantobuildunderthewater.Yearafteryear,thecoralgrew

higherandhigher.Atlastitgrewoutofthewater.

Thentheseabroughtitsmalltreesandsomethingelse.Aftersome

years,thesethingschangedintoearth.Sometimesthewindbroughtseeds

（種子）tothisearth.Sometimesbirdsflewoveritandbroughtseedstothe

island.

Thelittleseedsgrew.Inafewyearstherewereplantsalloverthe

island.Inafewmoreyearsthereweretreesgrowingthere.

Soyousee,theseislandswerebuiltlittlebylittle.Theworkerswere

verysmall.Dotheynotteachusalesson?Canyouthinkwhatthelesson

is?

l.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.smallworkerscandobigthingsiftheyworkhardworkandworka

longtime

D.allsmallthingscandobigthings

Passage6

Whensomeplatesoftheearthmovesuddenly,anearthquakehappens.

Manyearthquakesbeginunderthesea.Earthquakesmayhappen

anywhereontheearth.Theyoftenhappennearthemountains.

Duringanearthquake,theshakingsmakerocksrisesuddenlyandeven

crack（斷裂）open.Housesfall,peoplearekilledorhurt,andsometimes

thewholevillagesorcitiesaredestroyed.

Canwedosomethingtokeepourselvessafefromearthquakes?

Scientistshavestudiedearthquakesandmakemapsthatshowthe

uearthquakebeltsn.Inareas（地區(qū)）inthesebelts,it，spossiblefor

earthquakestohappen.Intheseareasweshouldbuildstronghousesto

fightagainstearthquakes.

Inthefuture,scientistswillbeabletotellwhenandwherean

earthquakewillbebeforetheyhappen.Theycanalsotellpeoplewhatto

doandhowtodoit.

l.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

4.1nthefuturewe'llbenolongersoafraidofearthquakes

A.withthehelpofscientists7exactprediction（預(yù)報(bào)）

B.becauseofamapshowingthe''earthquakebelts^^

C.becausewecanguessthedateandplaceofearthquakes

D.asscientistsknowwhattodoandhowtodoit

5.Choosethebesttitlefrothepassage.

A.AnEarthquake

B.AScientistandanEarthquake

C.HowtoFightAgainstEarthquake

D.EarthquakesTodayandTomorrow

Passage7

Itseemstousthattheearthstandsquitestill（靜止的）.Butitisreally

movingallthetime.Itturnsaroundamake-believelinethroughitscenter.

Wecallthismake-believelinetheearth'saxis（地軸）.Thetwoendsof

theearth'saxisarecalleditspoles（極）.Theearthtravelstwenty-four

hoursarounditsaxisonce.

Welookatthesunandsayit“travels“acrossthesky,butthesun

doesn'treallydoso.Theturningoftheearthmakesusfeelasifthesun

weremovingacrossthesky.Wecan'tseethattheearthismoving

becauseeverythingelseontheearthisturningwithus.Astheearthturns

aroundeverytwenty-fourhours,firstonehalffacesthesunandthenthe

otherhalf.Whenourhalfoftheearthisfacingthesun,wesayitis“day”.

Whenourhalfisawayfromthesun,wesayitis“night”.Itistheturning

oftheearththattellsuswhentogotobedandwhentogetup.

l.Themeaningof“amake-believeline"is“alinethat

A.iscalledpoleB.wecan'tsee

C.anyonecanseeD.wecanmakeandbelieve

2.1ttakestheearthtoturnarounditsaxisonce.

A.aweekB.amonthC.12hoursD.24hours

3.Usuallywesay,“Thesunrisesintheeastandsetsinthewest."Infact,

thesun.

A.doesnotmoveB.ismovingallthetime

C.movessometimesD.istooheavytomove

4.Wecan'tseetheearthmovingbecause.

A.theearthstandsstill

B.everythingontheearthismovingwithus

C.theearthissmallerthanthesun

D.theearthgoesonlyatnight

5.Whenourpartoftheearthturnsawayfromthesunwehave“”,

andwhenourpartfacesthesunwehave

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

Passage8

Weknowthemosquitoverywell.Mosquitoesflyeverywhere.They

canbefoundalmostallovertheworld,andtherearemorethan2,500

kindsofthem.

Noonelikesthemosquito.Butthemosquitomaydecidethatsheloves

you.She?Yes,she.It'struethatmalemosquitodoesn'tbite（咬）andonly

thefemalemosquitobitesbecausesheneedsbloodtolayeggs.Sheis

alwayslookingforthingsorpeopleshewantstobite.Ifshelikeswhat

shefinds,shebites.Butifshedoesn;tlikeyourblood,shewillturnto

someoneelseformoredeliciousblood.Nexttimeamosquitobitesyou,

justrememberyouarechosen.You'redifferentfromtheothers!

Ifthemosquitolikesyou,shelandsonyourbodywithoutlettingyou

know.Shebitesyousoquicklyandquietlythatyoumaynotfeelanything

different.Aftershebites,youwillhaveanitch（癢）onyourbodybecause

sheputssomethingfromhermouthtogetherwithyourblood.Bythetime

theitchingbegins,andshehasflownaway.

Andthenwhathappens?Well,afterherdeliciousdinner,themosquito

feelstired.Shejustwantstofindaplacetohaveagoodrest.There,ona

leaforawall,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.AHthemosquitoesdon?tliketobitepeopleforblood.

Passage9

We'vetalkedaboutsnails（蝸牛）andtheirslowmove.Butmuchofthe

timesnailsdon'tmoveatall.Theyareintheirshells（殼）一sleeping.

Hotsunwilldryoutasnail'sbody.Soattheleastsignofhotsun,asnail

drawsitsbodyintohisshell.Asnailwilldieinaheavyrain.Sowhenit

rains,asnaildoesthesamething,too.Asnailcansleepforaslongasit

needsto.Itspendsallthewintermonthsinitsshell,asleep.

Inthespringthesnailwakesup.Itsbody,aboutthreeincheslong,

comesoutfromtheshell.Whenhungry,thesnaillooksforfood.Itseyes,

attheendofthetopfeelers（觸角），areveryweak.Butitssense（感覺(jué)）of

smellisverystrong.Ithelpsthesnailtofindfoodandthenewgreens.

Asnail'smouthisnobiggerthanthepointofapin（大頭針）.Yetithas

256,000teeth!Theteethareverysmall,andyoucan'tseethem.Ifyou

putasnailinahardpaperbox,itwilleatitswayout!Andifasnailwears

outitsteeth,itwillgrownewones.

l.Asnail.

A.movesmoreslowlyatnightB.hasthousandsoffeet

C.doesn'tmoveatallD.sleepsmuchofthetime

2.1nthesentence“Asnaildrawsitsbodyintoitsshell”,theword"draw"

means.

A.tomakewithapencilB.topushC.topullD.tomoveaway

3.Fromthestory,weknow.

A.asnail'sshellisverythinB.asnailcan'tseewell

C.asnail'snoseisquiteshortD.asnail'sbodychangesindifferent

seasons

4.Asnailgoestosleepwhen.

A.itfeelshungryB.itisputintoapaperbox

C.springiscomingD.itrainsheavily

5.Whichofthefollowingiswrong?

A.Inwinterthesnaildoesn'teatormove.

B.Asnaildoesn'tlikelivingunderthesun.

C.Thesnail'steethcan'tbewornout.

D.Thesnail'snosehelpstofindfood.

Passage10

Jupiter'sMoonsandHowTheyTravel

ThemanymoonsofJupitertravelaroundtheplanetindifferent

directions(方向).

Jupiteristhelargestplanetinoursolarsystem.Overtheyears,

scientistshavefoundthatJupiterhasitsownsmallsolarsystem.Earth

hasonemoon.Jupiterhasatleastsixteenandprobablymore.

Sincetherearesomanymoons,scientistsbegantonumberthem.The

numerals(numbers)tellthesequence,ororder,inwhichthemoonswere

found.Theywereslowertonamethemoons.AllofJupiter'smoonsnow

haveanameaswellasanumber.

Thefirstfivemoonstobediscoveredareknownasthe“innermoons^^.

Buttheyarenottheclosesttotheplanet.Theclosestisonly127,600

kilometersawayfromJupiter.Alltheinnermoonscircletheplanetin

counter-clockwisedirection,thatis,oppositeofthehandsofaclock.

Jupiter'smiddlegroupofmoonsareatleast11,100,000kilometers

fromtheplanet.Theyalsomoveinacounter-clockwisemotion(moving).

Thefourfarthestmoonsareatleast20,700,000kilometersaway.These

arecalled“outermoons”.Theycircleinaclockwisemotion.

Howmanymoremoonsdoyouthinkwillbediscovered?

l.Whatdoes“solarsystem“inthisarticlemean?

A.銀河系B.宇宙空間C.流星雨D.太陽(yáng)系

2.Thingsthattravelinthesamedirectionasthehandsofaclockaresaid

tobetravelingina.

A.clockwisedirectionB.counter-clockwisedirection

C.samedirectionD.differentdirection

3.Jupiter'sgroupofmoonstravelinaclockwisedirection.

A.planetsB.innerC.middleD.outer

4.ThenumbersgiventoJupiter'smoonstell.

A.theorderinwhichtheywerediscovered

B.theorderinwhichtheytravel

C.theorderoftheirdistancefromJupiter

D.theorderofnames

5.Accordingtothepassage,whichofthefollowingstatementsistrue?

A.NoneofJupiterJsmoonshavenames.

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.Itisimportantbecausewithoutit

therewouldbenolifeonEarth.Thesungivesuslightandheat.

Alllivingthingsneedlightandheatfromthesuntolive.Plantsneed

lightandheattogrow.Theyusethelightfromthesuntomakefood.We

cannotmakeourownfood,butplantscan.Allthefoodweeatcomes

fromplantsinafoodchain（鏈）whichstartswiththesun.Forexample,

Animalsneedsunlight,too.Justlikeus,theirfoodcomesfromafood

chainwhichbeginswiththesunandtheplants.

sunfleaffcaterpillar（毛蟲(chóng)）fbird

sunfseaweed（海藻）fsmallfishfwhale（鯨）

Sunlightmeanswecanseeduringtheday.Iftherewasnosun,itwould

bedarkallthetime.Evenwhentheskyiscloudy,thesunlightisvery

stronganditshinesthroughtheclouds.

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.A11thefoodweeatcomesfrom.Anditstartswiththe.

A.plants;earthB.afoodchain;sun

C.food;sunD.plants;star

5.Inwhatwaydoyouthinkthesuncannotbeharmful（有害的）？

A.Thesuncandoharmtoyoureyesandskin.

B.Itcanmakeriverstoodry.

C.WithoutittherewouldbenolifeonEarth.

D.Hotsunondrylandcancausefires.

Passage12

Mostanimalsonlyhaveanimalsofadifferentkindforfood.But

sometimestwokindsofanimalscometogetherinapartnership（伙伴關(guān)

系）whichisgoodforthem.Youmayhavenoticedsomebirdsonthe

backsofsheep.Thisisnotbecausetheywantaride,butbecausethey

findeasyfoodintheparasites（寄生蟲(chóng)）onsheep.Thesheepletthebirds

dosobecausetheycanstoptheparasitesfromtroublingthem.Sothough

theycandowithitbythemselves,theycandobettertogetherwitheach

other.

Sometimesananimalhasaplantpartner.Therelationshipdevelops

untilthetwopartnerscannotdowithouteachother.Thisissoincoralsof

thesea.Insidetheirbodiestheyhaveverysmallplants,whichactas

“cleaners"，takingtheuselessthingsfromthecoralandgivingoxygenin

return.Thatiswhattheanimalneedstolive.Iftheplantsarekilled,orare

evenkeptfromreceivinglightsothattheycannotliveasusual,thecorals

willdie.

l.Somebirdsliketositonasheepbecause.

A.theycaneatitsparasites

B.theyenjoytravelingwiththesheep

C.theycan'tlivewithoutitsparasites

D.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.Email:EduHot@Gmail.Com

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。

LC.起初一看，四個(gè)選項(xiàng)好像都在文中敘述過(guò)，但仔細(xì)分析題干中的

“mostanimals"這一關(guān)鍵詞語(yǔ)，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.Ao有關(guān)“salmon”的情況在第二自然段中作了敘述。這種魚(yú)出生

在淡水中，后不到咸水地區(qū)居住，在那里度過(guò)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“spend

alonglife”和短文中的關(guān)鍵句"Thereitspendsitslife.”便可斷定答

案為Ao

3.Bo“theyleavetheirmountainhomeswhentheybecometoocrowded.v

一句是答案的出處。

4.Bo該題答案的出處是文章的第三自然段。文中說(shuō)，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(shuí)

也不知道，余項(xiàng)與文章敘述不符。

5.Do文中第二自然段敘述了“salmon”和北歐的一種老鼠遷移方向

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(kāi)頭一句正是對(duì)本文主題的概括。Email:EduHot@Gmail.Com

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(yáng)旋轉(zhuǎn)的，它本身不發(fā)光，靠反射太陽(yáng)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(lái)。

l.DouLiketheearth,acometgoesroundthesun,but,,<v是判斷本題的

根據(jù)。

2.Co根據(jù)“,?,iswaterfrozenintopiecesoficeandmixedwithironand

rockdustandperhapsafewbigpiecesofrock.”這句話即能得出答案。

3.Do由第五段的首句"Manypeopleperhapshaveseenacomet.v可知。

4.Co“Somecometsmoveoutofoursightandnevercomeback.Others

ke叩comingbackatregulartimes.v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“…thelasttimeit

cameclosetothesunandtheearthwasintheyear1986.”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(shù)木的生長(zhǎng)要受到陽(yáng)光、降水等方面的影響，從一棵樹(shù)上的年輪分布

情況上，可以推斷出樹(shù)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。

l.Ao“Ifthetenthringisfarfromtheeleventhring,thenwe'resurethat

itwassunnyandrainymostofthatyear.”——句即是答案所在。

2.Co文章第一段"Doyouknowtheycantelluswhattheweatherwas

like…”和第三段的首句"Treeringsareimportantnotonlyforstudying

thehistoryofweather,”都有所暗示。

3.Ao答案就在a??,tofindouttheweatheroftenyearsago,countthe

ringsofatreefromtheoutsidetotheinside.Ifthetenthringisfarfrom

theeleventhring*',v一句中。

4.Do短文最后一段說(shuō)，人們建房做飯都離不開(kāi)樹(shù)木。人所居住的周

圍環(huán)境中如果沒(méi)有了樹(shù)木，那么人也就遷移了。所以答案為D。

5.Bo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一。沒(méi)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。

l.Do綜合考慮第一段的意思，唯有D才是最恰當(dāng)?shù)倪x項(xiàng)。

2.Co根據(jù)“Thisdarksoilishumus,deadleaves,deadplantsandanimal

wastemakeit,butthistakesalongtime.”一句所述，可推知這是一種

由落葉、枯萎的植物以及動(dòng)物的糞便在長(zhǎng)時(shí)間的腐爛后所產(chǎn)生的一種

東西。由此不難得出答案為C。

3.Do答案就在uPeopleshouldgrowmoreandmoretreesandgrassto

stopwindfromcarryingthehumusaway.”這一句話之中。

4.Do由“Whenthehumushasbeenmade,plantscangrowwellinit.”

和“Ittakeshundredsofyearstomakehumus,"這兩句話所表達(dá)的意思，

可知答案只能是D。

5.AO本文就是說(shuō)明土壤對(duì)人類的重要性的。事實(shí)上，文章結(jié)尾的那

句話已經(jīng)點(diǎn)明主旨。

Passage5

【答案與解析】在大海的溫水區(qū)域，我們常?？梢园l(fā)現(xiàn)一些珊瑚島。

本文向我們描述了珊瑚島形成的自然過(guò)程。文章最后，作者有感而發(fā)，

以問(wèn)句結(jié)束全文，發(fā)人深思，耐人尋味。

l.Bo文章第一段就是講的“在海中較暖和的水域，常有一些珊瑚島”

這一事實(shí)。A顯然是不對(duì)的。

2.Co根據(jù)“Acoralislandisverynicetolookat.Itlookslikearingof

landwithtrees,grass,andflowersonit.”這句話不難得出答案。

3.Do答案即在“Ineachoftheseholesaverysmallseaanimalhaslived.

Theseseaanimalsmakethecoral.”一句中。

4.Ao倒數(shù)第三段中的"Sometimesbirdsflewoveritandbroughtseedsto

theisland."這句話對(duì)此有明確的說(shuō)明。

5.Co由這一小小的自然現(xiàn)象，作者聯(lián)想到工作在平凡崗位上的工人

們，寓意非常深刻。作者的思想感情由最后一段作者的議論可以體會(huì)

到。

Passage6

【答案與解析】地震是地球上對(duì)人類生存構(gòu)成威脅的最嚴(yán)重的自然災(zāi)

害之一?？茖W(xué)家們經(jīng)過(guò)研究，發(fā)現(xiàn)了地震活動(dòng)最頻繁的地方。生活在

地震帶地方的人們可以采取適當(dāng)?shù)拇胧p少其危害。也許，將來(lái)科學(xué)

家們能在地震之前預(yù)測(cè)出發(fā)生的地點(diǎn)和時(shí)間。

l.Do第一節(jié)最后的一句話是本題答案的出處。答案題時(shí)，尤其要注

意該句中的often一詞。

2.Bo短文的"Whensomeplatesoftheearthmovesuddenly,an

earthquakeh叩pens"這一句明確告訴我們：地球板塊突然移動(dòng)時(shí)、就

導(dǎo)致地震的發(fā)生。選項(xiàng)A不是地震的成因，而是地震產(chǎn)生的結(jié)果。

這從“…theshakingsmakerocksrisesuddenlyandevencrackopen”一

句中可以看出。

3.Co地震帶(earthquakebelts)是可能發(fā)生地震的地方。這由第三段的

中間兒句所描述的內(nèi)容可知。

4.Ao將來(lái)科學(xué)家能預(yù)測(cè)出地震發(fā)生的時(shí)間和地點(diǎn)。有了這種精確的

預(yù)報(bào)，人們當(dāng)然不會(huì)再對(duì)地震那