延吉中学科技英语训练资料.docx
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延吉中学科技英语训练资料.docx
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延吉中学科技英语训练资料
延吉中学科技英语训练资料
(一)
延吉中学外语组编2002,8,1
Passage1
Cantreestalk?
Yes----butnotinwords.Scientistshavereasonthattreesdocommunicatewitheachother.Notlongago,researcherslearnedsomesurprisingthings.First,awillowtreeattackedinthewoodsbycaterpillars(毛毛虫)changedthechemistryofitsleavesandmadethemtastesoawfulthatthecaterpillarsgetdisgustedandstoppedeatingthem.Then,evenmoreastonishing,thetreesentoutspecialvapors----analarmsignaltellingitsneighborstochangethechemistryoftheirownleavesandmakethemlesstasty.
Communication,ofcourse,doesn’tneedtobeinwords.Wecantalktoeachotherbyasmile,afrown,ashrugofourshoulders,andagesturewithourhands.Weknowthatbirdsandanimalsuseawholevocabularyofsongs,sounds,andmovements.Beesdancetheirsignals,flyingincertainpatternsthattellotherbeeswheretofindnectarforhoney.Sowhyshouldn’ttreeshavewaysofsendingmessages?
1.Itcanheinferredfromthepassagethatcaterpillarsdonotfeedonleavesthat________.
A.havenogoodtasteB.arelyingontheground
C.haveanunfamiliarshapeD.arelocatednearbeehives
2.Thewillowtreedescribedinthepassageprotecteditselfby________.
A.growingmorebranchesB.changingitsleafchemistry
C.communicatingwithbirdsandbeesD.providingshelterforcaterpillars
3.Thewillowtreewasabletocommunicatewithothertreesby_________.
A.wavingitsbranchesB.droppingitsleaves
C.givingoffaspecialvaporD.changingthecolorofitstrunk
4.Theauthorbelievesthattheincidentdescribedinthepassage_______.
A.cannotbetakenseriouslyB.seemsperfectlyreasonable
C.shouldnolongerbepermittedD.mustbeinvestigatedmorethoroughly
5.Whichofthefollowingstatementsbestdescribestheorganizationofthepassage?
A.Ascientifictermisinventedanditsdefinitionisprovided
B.Aphenomenonisdescribedandsomepossiblecausedaresuggested.
C.Theviewoftworesearchersaredescribedandcontrasted
D.Aspecialcaseidgiventoillustrateageneralprinciple.
Cantreestalk?
Yes----butnotinwords.Scientistshavereasonthattreesdocommunicatewitheachother.Notlongago,researcherslearnedsomesurprisingthings.First,awillowtreeattackedinthewoodsbycaterpillars(毛毛虫)changedthechemistryofitsleavesandmadethemtastesoawfulthatthecaterpillarsgetdisgustedandstoppedeatingthem.Then,evenmoreastonishing,thetreesentoutspecialvapors----analarmsignaltellingitsneighborstochangethechemistryoftheirownleavesandmakethemlesstasty.
Communication,ofcourse,doesn’tneedtobeinwords.Wecantalktoeachotherbyasmile,afrown,ashrugofourshoulders,andagesturewithourhands.Weknowthatbirdsandanimalsuseawholevocabularyofsongs,sounds,andmovements.Beesdancetheirsignals,flyingincertainpatternsthattellotherbeeswheretofindnectarforhoney.Sowhyshouldn’ttreeshavewaysofsendingmessages?
(A)1.Itcanheinferredfromthepassagethatcaterpillarsdonotfeedonleavesthat________.
A.havenogoodtasteB.arelyingontheground
C.haveanunfamiliarshapeD.arelocatednearbeehives
(B)2.Thewillowtreedescribedinthepassageprotecteditselfby________.
A.growingmorebranchesB.changingitsleafchemistry
C.communicatingwithbirdsandbeesD.providingshelterforcaterpillars
(C)3.Thewillowtreewasabletocommunicatewithothertreesby_________.
A.wavingitsbranchesB.droppingitsleaves
C.givingoffaspecialvaporD.changingthecolorofitstrunk
(B)4.Theauthorbelievesthattheincidentdescribedinthepassage_______.
A.cannotbetakenseriouslyB.seemsperfectlyreasonable
C.shouldnolongerbepermittedD.mustbeinvestigatedmorethoroughly
(D)5.Whichofthefollowingstatementsbestdescribestheorganizationofthepassage?
A.Ascientifictermisinventedanditsdefinitionisprovided
B.Aphenomenonisdescribedandsomepossiblecausedaresuggested.
C.Theviewoftworesearchersaredescribedandcontrasted
D.Aspecialcaseidgiventoillustrateageneralprinciple.
Passage2
Eveytimehereturnstohishometown,PaulSmith,23,can`thelpbutberemindedofhishighschoolscienceproject.Theoutcomeofthatproject—agiantwindturbine—stands49metreshighabovethetown.
FiveyearsagoSmithwassearchingforanideaforaphysicsprojectwhenhisteacher,RomKvale,suggestedwindenergy.SmithlearnedallabouttheprojectandconcludedthattheForestCityschooldistrictcouldgenerateitsownelectricitybyinstallingawindturbine.Aturbineisadevicewithafanthatisturnedbywind,water,stream,orsomeotherforce.Theforceturnsthefan,whichisconnectedtoaverticalshaft(轴)thatdrivesanelectricgenerator.
Smithpresentedhidideatotheschooldistrict,whichencouragedhimtoexploretheideafurther.Evenaftergraduatingfromschool,Smithkeptattheidea,estimatingthata5750,000burbinewouldpayforitselfinenergysavingsasfterabouttenyearsofoperation.Theturbine,Smithconcluded,wouldlast20yearsbeyondthat,generatinganextra$1.6millioninrevenuefortheschooldistrict.Smitheventuallypersuadedtheschooldistricttogetaloanfromthefederalgovernmentfortheturbine,whichwaserectedin1998andwentintooperationinthefollowingyear.
SmithnowworksasacomputerforaninsurancecompanyinMinnesota.“Itwasjustaclassproject.”hesaid.“Ifoundsomethingthatcouldbringpowertotheschoolandnotharmtheenvironment.Ididn`tdoittomakemoneyorgetanyrecognition.I`mjustgladit`stheretoshowstudentsiftheybelieveinsomething,theycanmakeithappen.”
1.PaulSmithpresentedtheideaofawindturbinewhenhewas________.
A.ahighschoolstudentB.inchargeofawindproject
C.doinghisgraduatepaperD.acomputerprogrammer
2.Theprojectissupposedtoproduceelectricityworthyof________ayear.
A.nomorethan$75,000B.between$75.000and$80,000
C.muchthan$80,000`D.$1.6million
3.Theword“revenue”(Line4,para.3)mostprobablymeans________.
A.benefitsB.incomeC.profitsD.wealth
4.Thecapitalinvestmentforthewindturbinewas________.
A.raisedamongtheschoolfacultyandstudents
B.contributedbytheschooldistrictresidents
C.providedbytheschoolauthoritiesD.borrowedfromthefederalgovernment
5.Smithvaluestheprojectmainlybecauseit________.
A.hashimselfafortuneB.hasearnedhimselfaprize
C.protectstheenvironmentD.helpstobuildconfidenceamongstudents
Passage2
Eveytimehereturnstohishometown,PaulSmith,23,can`thelpbutberemindedofhishighschoolscienceproject.Theoutcomeofthatproject—agiantwindturbine—stands49metreshighabovethetown.
FiveyearsagoSmithwassearchingforanideaforaphysicsprojectwhenhisteacher,RomKvale,suggestedwindenergy.SmithlearnedallabouttheprojectandconcludedthattheForestCityschooldistrictcouldgenerateitsownelectricitybyinstallingawindturbine.Aturbineisadevicewithafanthatisturnedbywind,water,stream,orsomeotherforce.Theforceturnsthefan,whichisconnectedtoaverticalshaft(轴)thatdrivesanelectricgenerator.
Smithpresentedhidideatotheschooldistrict,whichencouragedhimtoexploretheideafurther.Evenaftergraduatingfromschool,Smithkeptattheidea,estimatingthata5750,000burbinewouldpayforitselfinenergysavingsasfterabouttenyearsofoperation.Theturbine,Smithconcluded,wouldlast20yearsbeyondthat,generatinganextra$1.6millioninrevenuefortheschooldistrict.Smitheventuallypersuadedtheschooldistricttogetaloanfromthefederalgovernmentfortheturbine,whichwaserectedin1998andwentintooperationinthefollowingyear.
SmithnowworksasacomputerforaninsurancecompanyinMinnesota.“Itwasjustaclassproject.”hesaid.“Ifoundsomethingthatcouldbringpowertotheschoolandnotharmtheenvironment.Ididn`tdoittomakemoneyorgetanyrecognition.I`mjustgladit`stheretoshowstudentsiftheybelieveinsomething,theycanmakeithappen.”
(A)1.PaulSmithpresentedtheideaofawindturbinewhenhewas________.
A.ahighschoolstudentB.inchargeofawindproject
C.doinghisgraduatepaperD.acomputerprogrammer
(B)2.Theprojectissupposedtoproduceelectricityworthyof________ayear.
A.nomorethan$75,000B.between$75.000and$80,000
C.muchthan$80,000`D.$1.6million
(C)3.Theword“revenue”(Line4,para.3)mostprobablymeans________.
A.benefitsB.incomeC.profitsD.wealth
(D)4.Thecapitalinvestmentforthewindturbinewas________.
A.raisedamongtheschoolfacultyandstudents
B.contributedbytheschooldistrictresidents
C.providedbytheschoolauthoritiesD.borrowedfromthefederalgovernment
(D)5.Smithvaluestheprojectmainlybecauseit________.
A.hashimselfafortuneB.hasearnedhimselfaprize
C.protectstheenvironmentD.helpstobuildconfidenceamongstudents
Passage2
Forty-fouryearsafterAlbertEinstein`sdeath,hisextraordinarybrainisstillcontributingtoscience.Canadianresearchers(studyingthegreatphysicist`spreservedbrain)havediscoveredthatitwasunusualinshape.ThatshapecouldhelpexplainwhatmadeEinsteinagenius.
TheCanadianteam,ledbySandraWitelson,beganexaminingEinstein`sbrainthreeyearsago.Theycomparedittothepreservedbrainsof35menand56women.Inparticular,theycoparedittothebrainsofseveralmensimilarinagetoEisteinwhenhedied.Theyfoundthat
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