1995年托福考试阅读理解全真试题上文档格式.docx
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1995年托福考试阅读理解全真试题上文档格式.docx
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thistime,thevessellogged600,000kilometersandtook
almost20,000coresamplesofseabedsedimentsandrocksat
624drillingsitesaroundtheworld.theglomarchallengers
coresampleshaveallowedgeologiststoreconstructwhatthe
planetlookedlikehundredsofmillionsofyearsagoandto
calculatewhatitwillprobablylooklikemillionsofyearsinthe
future.today,largelyonthestrengthofevidencegathered
duringtheglomarchallengersvoyages,nearlyallearthscientists
agreeonthetheoriesofplatetectonicsandcontinental
driftthatexplainmanyofthegeologicalprocessesthatshape
theearth.
thecoresofsedimentdrilledbytheglomarchallenger
havealsoyieldedinformationcriticaltounderstandingthe
worldspastclimates.deepoceansedimentsprovidea
climaticrecordstretchingbackhundredsofmillionsofyears,
becausetheyarelargelyisolatedfromthemechanicalerosionand
theintensechemicalandbiologicalactivitythatrapidlydestroy
muchlandbasedevidenceofpastclimates.thisrecordhas
alreadyprovidedinsightsintothepatternsandcausesofpast
climaticchangeinformationthatmaybeusedtopredict
futureclimates.
1.theauthorreferstotheoceanbottomasa"
frontier"
inline2becauseit
(a)isnotapopularareaforscientificresearch
(b)containsawidevarietyoflifeforms
(c)attractscourageousexplorers
(d)isanunknownterritory
2.theword"
inaccessible"
inline4isclosestinmeaningto
(a)unrecognizable
(b)unreachable
(c)unusable
(d)unsafe
3.theauthormentionsouterspaceinline9because
(a)theearthsclimatemillionsofyearsagowassimilartoconditionsinouterspace
(b)itissimilartotheoceanfloorinbeingalientothehumanenvironment
(c)rockformationsinouterspacearesimilartothosefoundontheoceanfloor
(d)techniquesusedbyscientiststoexploreouterspaceweresimilartothoseusedinoceanexploration
4.whichofthefollowingistrueoftheglomarchallenger?
(a)itisatypeofsubmarine.
(b)itisanongoingproject.
(c)ithasgoneonover100voyages.
(d)itmadeitsfirstdsdpvoyagein1968.
5.theword"
extracting"
inline18isclosestinmeaningto
(a)breaking
(b)locating
(c)removing
(d)analyzing
6.thedeepseadrillingprojectwassignificantbecauseitwas
(a)anattempttofindnewsourcesofoilandgas
(b)thefirstextensiveexplorationoftheoceanbottom
(c)composedofgeologistsfromallovertheworld
(d)fundedentirelybythegasandoilindustry
7.theword"
strength"
inline21isclosestinmeaningto
(a)basis
(b)purpose
(c)discovery
(d)endurance
8.theword"
they"
inline36refersto
(a)years
(b)climates
(c)sediments
(d)cores
9.whichofthefollowingisnotmentionedinthepassageasbeingaresultofthedeepseadrillingproject?
(a)geologistswereabletodeterminetheearthsappearancehundredsofmillionsofyearsago.
(b)twogeologicaltheoriesbecamemorewidelyacceptedbyscientists.
(c)informationwasrevealedabouttheearthspastclimaticchanges.
(d)geologistsobservedformsofmarinelifeneverbeforeseen.
questions10-21
basictoanyunderstandingofcanadain20years
afterthesecondworldwaristhecountrysimpressive
populationgrowth.foreverythreecanadiansin1945,therewere
overfivein1996.inseptember1966canadaspopulation
passedthe20millionmark.mostofthissurginggrowthcame
fromnaturalincrease.thedepressionofthe1930sandthe
warhadheldbackmarriagesandthecatchingupprocess
beganafter1945.thebabyboomcontinuedthroughthedecade
ofthe1950s,producingapopulationincreaseofnearly
fifteenpercentinthefiveyearsfrom1951to1956.thisrate
ofincreasehadbeenexceededonlyoncebeforeincanadas
history,inthedecadebefore1911,whentheprairieswere
beingsettled.undoubtedly,thegoodeconomicconditionsofthe
1950ssupportedagrowthinthepopulation,buttheexpansion
alsoderivedfromatrendtowardearliermarriagesandan
increaseintheaveragesizeoffamilies.in1957thecanadian
birthratestoodat28perthousand,oneofthehighestinthe
world.
afterthepeakyearof1957,thebirthrateincanada
begantodecline.
itcontinuedfallinguntilin1966itstoodatthe
lowestlevelin25years.partlythisdeclinereflectedthelow
levelofbirthsduringthedepressionandthewar,butitwas
alsocausedbychangesincanadiansociety.youngpeople
werestayingatschoollonger,morewomenwereworking,
youngmarriedcoupleswerebuyingautomobilesorhouses
beforestartingfamilies,risinglivingstandardswerecutting
downthesizeoffamilies.itappearedthatcanadawasonce
morefallinginstepwiththetrendtowardsmallerfamiliesthat
hadoccurredallthroughthewesternworldsincethetimeof
theindustrialrevolution.
althoughthegrowthincanadaspopulationhasslowed
downby1966(theincreaseinthefirsthalfofthe1960swas
onlyninepercent).anotherlargepopulationwavewascoming
overthehorizon.itwouldbecomposedofthechildrenofthe
childrenwhowerebornduringtheperiodofthehighbirth
ratepriorto1957.
10.whatdoesthepassagemainlydiscuss?
(a)educationalchangesincanadiansociety.
(b)canadaduringthesecondworldwar
(c)populationtrendsinpostwarcanada
(d)standardsoflivingincanada
11.accordingtothepassage,whendidcanadasbabyboombegin?
(a)inthedecadeafter1911
(b)after1945
(c)duringthedepressionofthe1930s
(d)in1966
12.theword"
five"
inline4refersto
(a)canadians
(b)years
(c)decades
(d)marriages
13.theword"
surging"
inline5isclosestinmeaningto
(a)new
(b)extra
(c)accelerating
(d)surprising
14.theauthorsuggeststhatincanadaduringthe1950s
(a)theurbanpopulationdecreasedrapidly
(b)fewerpeoplemarried
(c)economicconditionswerepoor
(d)thebirthratewasveryhigh
15.theword"
trend"
inline15isclosestinmeaningto
(a)tendency
(b)aim
(c)growth
(d)directive
16.theword"
peak"
inline19isclosestinmeaningto
(a)pointed
(b)dismal
(c)mountain
(d)maximum
17.whenwasthebirthrateincanadaatitslowestpostwarlevel?
(a)1966
(b)1957
(c)1956
(d)1951
18.theauthormentionsallofthefollowingascausesofdeclinesinpopulationgrowthafter1957except
(a)peoplebeingbettereducated
(b)peoplegettingmarriedearlier
(c)betterstandardsofliving
(d)couplesbuyinghouses
19.itcanbeinferredfromthepassagethatbeforetheindustrialrevolution
(a)familieswerelarger
(b)populationstatisticwereunreliable
(c)thepopulationgrewsteadily
(d)economicconditionswerebad
20.theword"
it"
inline34refersto
(a)horizon
(b)populationwave
(c)ninepercent
(d)firsthalf
21.thephrase"
priorto"
inline36isclosestinmeaningto
(a)behind
(b)since
(c)during
(d)preceding
questions22-30
areorganicallygrownfoodsthebestfoodchoices?
the
advantagesclaimedforsuchfoodsoverconventionallygrown
andmarketedfoodproductsarenowbeingdebated.advocates
oforganicfoodsatermwhosemeaningvariesgreatly
frequentlyproclaimthatsuchproductsaresaferandmore
nutritiousthanothers.
thegrowinginterestofconsumersinthesafetyandmore
nutritionalqualityofthetypicalnorthamericandietisa
welcomedevelopment.however,muchofthisinteresthasbeen
sparkedbysweepingclaimsthatthefoodsupplyisunsafeor
inadequateinmeetingnutritionalneeds.althoughmostof
theseclaimsarenotsupportedbyscientificevidence,the
preponderanceofwrittenmaterialadvancingsuchclaimsmakesit
difficultforthegeneralpublictoseparatefactfromfiction.as
aresult,claimsthateatingadietconsistingentirelyoforganically
grownfoodspreventsorcuresdiseaseorprovidesother
benefitstohealthhavebecomewidelypublicizedandformthe
basisforfolklore.
almostdailythepublicisbesiegedbyclaimsfor"
no-aging"
diets,newvitamins,andotherwonderfoods.thereare
numerousunsubstantiatedreportsthatnaturalvitaminsare
superiortosyntheticones,thatfertilizedeggsarenutritionally
superiortounfertilizedeggs,thatuntreatedgrainsarebetter
thanfumigatedgrainsandthelike.
onethingthatmostorganic
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