托福八套练习题Word文件下载.docx
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Maybetheweddingcouldbepostponed."
C."
Thatseemslikeagoodreasontodelaytheproject."
D."
Ican'
tbelievethattheweddingissosoon."
5.Whatdoestheprofessormean?
A.I'
mnotreallydoingyouabigfavor,butI'
mtellingyouitis.
B.I'
msureyoudon'
tbelievethisbecauseyouneverbelievewhatIsay.
C.Itcertainlyseemslikeabigfavor,butit'
snot.
D.You'
renotgoinglikethisnow,butyou'
llappreciateitlater.
2
Section2:
6.Whatistheprofessordiscussing?
A.Thevariouscausesofaparticulargeographicalformation
B.Theroleofmeteorsinformingcraters.
C.Howcratershaveanimpactontheirsurroundings.
D.Thedifferencesbetweenvarioustypesofvolcaniccraters.
7.WhichdidtheprofessorNOTmentionasapossiblecauseofcraters?
A.Volcaniccollapse
B.Earthquakeactivity
C.Volcanicexplosion
D.CollisionofameteorwithEarth
8.Whydoestheprofessoraskthis:
A.Topointoutthatthestudentsdonotknowtheanswer
B.Tofindoutifthestudentshavereadthechapter
C.Toencouragethestudentstothinkaboutsomethingthroughoutthelecture.
D.Toreinforceanearlierpointthathemade.
9.WhatisMountMazama?
A.AmountainnowtoweringoverOregon.
B.Thenameofamountainthatusedtoexist.
C.Avolcanicmountainthatregularlyerupts.
D.Amountaindestroyedbytheimpactofameteor.
10.Theprofessorindicateshoweachofthesecraterswasformed.Indicatewhichcrater
eachofthesedescriptionsoftheformationmatches.
CRATERLAKEMT.ST.METEOR
HELENSCRATER
Formedwhenavolcanic
mountainexploded
mountaincollapsed
Notformedaspartofa
volcanicmountain
11.Whatdoestheprofessorimplyaboutthenumberofvolcaniccraters?
A.Itisnotaslargeasthenumberofimpactcraters.
B.Itisapproximatelythesameasthenumberofimpactcraters.
C.Itismostlikelyaroundeighty.
D.Itisfargreaterthanthenumberofimpactcraters.
3
ListeningScript:
ConsultationDelayedPaper
（student）
（professor）
Hi,ProfessorHarley.CouldItalkwithyouforamoment?
Ihavea
questionforyou.
Sure,Tom.What'
syourquestion?
Well,I'
minyourclass,theEasternCulturesclassat9:
00.
Yes,Iknow.
Andwehavethatbigresearchprojectduenextmonth.
Yes,youdo.
AndIwaswondering...wonderingifuh
（professor）What'
syourquestion,Tom?
Aren'
tyousurewhatyou'
resupposedtobe
doingfortheresearchproject?
（student）No,it'
snotthat.
（professor）Well,what'
Iwaswonderingifitwouldbepossibletoumturninthe
projectlate.
（professor）Youwanttoturntheprojectinlate?
Butyou'
vegotmorethanamonthto
finishit.Youhaveplentyoftimetogetitdonebeforetheduedate
（student）Well,yousee,I'
mgoingtobemissingafewdaysofschoolnextmonth
（professor）Youare?
Why'
sthat?
Ihaveareallygoodreasonformissingschoolanddelayingtheproject.
Yousee,mybrothermyolderbrotherwellhe'
sgettingmarriedthen.
It'
sgoingtobeareallybigweddingandI'
mgoingtopartoftheweddingso.I'
llhaveto,tomissafewdaysofschoolnextmonthforthewedding.
（professor）Well,yourbrother'
sweddingsoundslikeagoodreasontomissacoupleof
daysofschool.Butwellwhat'
sthatgottodowiththeresearchpaper?
Yousee,theresearchpaper'
sdueononeofthedaysI'
mgoingtobe
goneformybrother'
swedding.
（professor）Uh-huh
SoI'
dreallyappreciateitifIdidn'
thavetofinishtheresearchprojectuntil
afterthewedding...maybeaweekortwoweeksorsoafterthe
wedding.
（professor）Butthewedding'
snotforanothermonthfromnow.Youhaveplentyof
timetogettheprojectdonebeforeyouleaveforthewedding.
IwashopingIcouldputitoffuntilaftertheweddingsoIwouldn'
thaveto
worryaboutituntilthen.
（professor）Listen,I'
mgoingtodoyouabigfavor,thoughyoumightnotbelieveright
nowthatitactuallyisabigfavor.Iwantyoutogettheprojectdonenow,
getitdoneearlybeforethewedding.Thatway,youwon'
thaveithanging
overyouheadduringthewedding.
（student）Thatdoesn'
treallysoundlikemuchofafavor.
（professor）Youmightnotappreciateitnow,butI'
msureyou'
4
GeographyCraterFormation
Todaywe'
regoingtobetalkingaboutthegeologicalformation
calledacrater.Doyouknowwhatacrateris?
It'
sabowl-orelliptical-shapeddepressioninthesurfaceoftheearth,orinthesurfaceof
anyothercelestialbodyforthatmatter.We'
regoingtobelookingat
twotremendouslydifferenttypesofcraters.Onetypeofcrater'
s
formedbyinternalforces,duringvolcanicactivitythatcausesa
mountaintoeithercollapseorexplode.Theothertypeofcrateris
formedbyanexternalforce,fromtheimpactofameteorwiththe
surfaceoftheearth.Doyouknowwhichkindofcraterismorecommonon
Earth,volcaniccratersorimpactcraters?
I'
mnotgoingtotellyounow,
butkeepthequestioninyourmindaswe'
regoingovertheinformationin
thelecture,andwe'
llcomebacktoitlater.
Thefirsttypeofcraterwe'
regoingtolookathasbeenformedasaresultof
volcanicactivity.Volcaniccratersareactuallyformedintwodifferentways,
eitherfromcollapseorfromexplosion.
（professor）Let'
slookfirstatacollapsecrater.Doanyofyourecognizeit?
...Thecrater
inthisphotoisCraterLake,intheCascadeMountainsinsouthernOregon.
GeologistsbelievethatCraterLakewasoncepartofatoweringvolcanic
mountain.They'
renamedthismountainofyesteryearMountMazama.
Sometimearound7,000yearsago,atremendousmassoflavaflowedout
ofthemountain,andtheunsupportedpeakofthehugemountain
collapsed,leavingacratersixmileswide.Whatwehavelefttodayfrom
thishugemountainfromthousandsofyearsagoisthissix-mile-wide
crater.
（professor）Nowwe'
lllookattheothertypeofvolcaniccrater,anexplosivecrater.Let
mebeclearaboutthis,thattherearetwodifferentkindsofvolcanic
craters,butthey'
rebothformedfromvolcanoes.Thisisthesecondtypeof
volcaniccrater,inadditiontothecollapsevolcaniccraterwealready
discussed.Thistypeofcraterisformednotbecauseofaninwardcollapse,
asCraterLakewasformed,butbecauseofasuddenandforcefulexplosion.
Canyourecognizethemountaininthisphotograph?
Ofcourse,youcan!
Thisis,I'
msureyouknow,MountSt.Helens,oractuallythecraterthat
remainatopMountSt.Helens.Itwasduringaviolentvolcaniceruption
onMay18,1980,thattonsofashanddebriswereblownintotheatmosphereandamile-widecraterwasformed.
Well,that'
sallwe'
regoingtodiscussaboutvolcaniccratersbutthetwo
differenttypesofvolcaniccratersshouldbeclear.Onekind,likeCrater
Lake,isformedwhenamountaincollapses,andtheother,likeMountSt.
Helens,isformedwhenamountainexplodes.
llmoveontotheotherradicallydifferenttypeofcrater,thekind
that'
scausedbytheimpactofanexternalforcesuchasameteorrather
thanaspartofavolcanicmountain.Thecraterinthisphotographwas
causedwhenameteorcollidedwithEarth.Thiscrater,whichislocatedin
north-centralArizona,hastheratherappropriatenameofMeteorCrater.
5
Thishugecraterismorethanthree-quartersofamileacross.Becauseit
wasn'
tformedduringvolcanicactivity,thewallsofthecraterare
composedofsedimentaryratherthanvolcanicrock.Themeteorthat
causedthecraterwasalmosttotallydestroyedonimpact,althougha
numberoftinyfragmentsofthemeteorhavebeenfoundinthevicinityof
thecrater.
sreturnnowtothequestionIposedatthebeginningofthelecture.
Whichtypeofcrater,fromvolcanoesorfromimpact,isthemostcommononEarth?
Ifyou
thoughttheanswerwasvolcaniccraters,you'
reright.Atleast80impactcratersareknown
toexistonEarth.
However,thisnumber'
snothinglikethenumberofvolcaniccratersthatexiston
ourgeologicallyactiveplanet.Well,that'
sallfortoday.Seeyounextweek.
6
MiniTest2
1.Whatisthestudent'
sproblem?
A.Sheneedshelpusingthecomputerizedresearchstation.
B.Shecannotcheckoutthreebooksthathavealreadybeencheckedout.
C.Shedoesnotknowwherethereferencesectionis.
D.Sheishavingdifficultyinfindingbooksinthelibrary.
2.WhatstephasthestudentNOTtakenbytheendoftheconversation?
A.Shehasaskedthelibrarianforhelp.
B.Shehassearchedforthebooksatthecomputerizedresearchstation.
C.Sheh
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