高二上学期第三次月考英语试卷(精彩3篇)

高二上学期第三次月考英语试卷 篇一

The Importance of Learning English

English is one of the most widely spoken languages in the world. It is also the official language of many countries and is used as a medium of communication in international business and politics. Therefore, it is essential for students to learn English in order to thrive in today's globalized world.

Firstly, learning English opens up a world of opportunities. In many professions, being able to speak English fluently is a requirement. Whether it is in the field of tourism, business, or technology, English proficiency is highly valued. By mastering English, students can increase their job prospects and have a competitive edge in the job market.

Secondly, learning English enables students to access a vast amount of information. The majority of scientific research, academic papers, and online resources are written in English. By understanding English, students can stay up-to-date with the latest developments in their fields of interest and broaden their knowledge base. Moreover, English is the language of the internet, and being able to navigate and understand online content allows students to access a wealth of information that would otherwise be unavailable to them.

Furthermore, learning English promotes cultural understanding and global communication. English is not only a language, but it is also a gateway to different cultures and perspectives. By learning English, students can communicate with people from different countries and gain insights into their traditions, customs, and ways of thinking. This fosters tolerance, empathy, and a global mindset, which are crucial in today's interconnected world.

Lastly, learning English enhances cognitive abilities. Studies have shown that bilingual individuals have better memory, problem-solving skills, and cognitive flexibility. Learning a second language, such as English, improves brain function and has a positive impact on cognitive development. Therefore, by learning English, students can sharpen their thinking skills and boost their overall intellectual capacity.

In conclusion, learning English is of utmost importance for students in today's globalized world. It opens up opportunities, provides access to information, promotes cultural understanding, and enhances cognitive abilities. By investing time and effort in learning English, students can equip themselves with a valuable skill that will benefit them throughout their lives and careers.

高二上学期第三次月考英语试卷 篇二

The Role of Technology in Education

In recent years, technology has become an integral part of education. From online learning platforms to interactive teaching tools, technology has revolutionized the way students learn and teachers teach. Its impact on education is undeniable, and it plays a vital role in preparing students for the future.

Firstly, technology enhances access to education. With the help of technology, students can access educational resources and materials anytime, anywhere. Online platforms and digital libraries provide students with a wealth of information, allowing them to learn at their own pace and explore topics of interest. This flexibility in learning ensures that education is accessible to all, regardless of geographical location or socioeconomic background.

Secondly, technology promotes engagement and active learning. Traditional teaching methods often rely on passive learning, where students are expected to listen and take notes. However, technology offers interactive and immersive learning experiences that engage students and foster active participation. From virtual reality simulations to educational games, technology makes learning fun and enjoyable, encouraging students to take an active role in their own education.

Furthermore, technology prepares students for the digital age. In today's society, digital literacy is essential for success. By incorporating technology into classrooms, students become familiar with digital tools and develop the skills needed to thrive in the digital world. From basic computer skills to coding and programming, technology equips students with the necessary skills for future careers in various industries.

Moreover, technology enables personalized learning. Every student has different learning styles, abilities, and interests. Technology allows for personalized learning experiences, where students can tailor their education to meet their individual needs. Adaptive learning platforms and intelligent tutoring systems provide personalized feedback and recommendations, ensuring that students receive the support and guidance they need to succeed.

In conclusion, technology has revolutionized education and plays a crucial role in preparing students for the future. It enhances access to education, promotes engagement and active learning, prepares students for the digital age, and enables personalized learning. By embracing technology in education, we can create a more inclusive, engaging, and effective learning environment that equips students with the skills and knowledge they need to thrive in the 21st century.

高二上学期第三次月考英语试卷 篇三

【#高二# 导语】高二一年,强人将浮出水面,鸟人将沉入海底。高二重点解决三个问题:一,吃透课本;二，找寻适合自己的学习方法；三，总结自己考试技巧，形成习惯。为了帮助你的学习更上一层楼，©高二频道为你准备了《高二上学期第三次月考英语试卷》希望可以帮到你！

　　*部分：英语知识运用（共两节，满分65分）

　　*节：单项填空（共35小题，每题1分，满分35分）

　　1.Itis___reminderthatweneedtocareabout_____worldwelivein,_____onewithnecessityforlifeandlife.

　　A.a;a;/B.a;the;theC./;the;/D.a;the;/

　　2.Themanwith____shouldersstaredatmewith____eyes.

　　A.broad,greatB.wide,largeC.wide,broadD.broad,wide

　　3.Youmaynotagree,but____Ithinksheisaverygoodgirl

　　A.personallyB.trulyC.generallyD.commonly

　　4.Theystayedupverylatelastnight.Nowtheyarestillasleep.Don’t____them.

　　A.breakB.disturbC.knockD.interrupt

　　5.Theswimmingpoolisused_____allthechildrenintheneighborhood.

　　A.incommonB.incommonbyC.incommonwithD.incommonof

　　6.Theprogresshehasmadeinmathsismuchgreaterthan_____inEnglish.

　　A.theoneB.thatC.hehasD.it

　　7.Wehavebeentoldthatundernocircumstances_____thetelephoneintheofficeforpersonalaffairs.

　　A.mayweuseB.wecoulduseC.wemayuseD.didweuse

　　8.Thepolicemansignedforthedriverto_____andthencheckedhisdrivinglicense.

　　A.setasideB.breakdownC.stopoverD.pullover

　　9.Themostexcitingthingforhimwas______hefinallyfoundtwotinnedfruitsin______seemedtohimtobeaservant'sbedroom.

　　A.that;whatB.what;whichC.that;thatD.what;where

　　10.Thelittleboyisn’tgettingonwellinmathsandworsestill,heisevenunwillingtogotoschool.Withherson_____,shefeelsvery______.

　　A.disappointing；worryingB.disappointing；worried

　　C.disappointed；worriedD.disappointed；worrying

　　11.WhenIturnedtotheperson_____nexttome,Irecognizedthathewasmyschoolmate.

　　A.seatingB.seatedC.sitD.sat

　　12.TheShaolinTemple_____1400yearsagohasbecomeatouristattraction.

　　A.datesbacktoB.datingbackC.datesfromD.datingfrom

　　13.Hewasgladtolearn____wasamongthenamesadmittedtotheuniversity.

　　A.itB.thatC.heD.his

　　14.---Wheredidthemurderhappen?

　　---Itwasinthehouse_____mygrandmotherusedtolive.

　　A.thatB.whereC.whichD.inwhich

　　15.Iwas_______inthemiddleofthecall,forIhadnocoinstoputintothebox.

　　A.hungupB.calledoffC.cutoffD.comeoff

　　16.Hesatthere,silentanddepressed,withhiseyes____ontheceiling.

　　A.fixingB.beingfixedC.fixedD.tobefixed

　　17---Musttheyhandintheircompositionstomorrow?

　　---No,they______handtheminthisafternoon.

　　A.aregoingtoB.aretoC.needn’tD.can’t

　　18.Thatdaywasamostexcitingmomentforthefootballfans,____forthefirsttime,theirfootballteamwontheWorldCup.

　　A.whenB.whichC.whileD.ontheday

　　19.–What’sthematterwithyourfinger?

　　–I______inthedoorjustnow.

　　A.gotittocatchB.gotitcaughtC.gotitcatchingD.gottocatchit

　　20.It’sreportedthataplanewithfivepeople______crashedintothemountainseveraldaysago.

　　A.onboardB.ontheboardC.inboardD.intheboard

　　21.Itwas10o’clock____thebigfirebrokeout,______5peoplelosttheirlives.

　　A.that,whichB.when,whichC.that,whereD.when,where

　　22.Theprofessortriedhisbesttomakehislectureeasy________.

　　A.understoodB.tounderstandC.understandingD.tobeunderstood

　　23.Althoughthereweremanypeopleinthesquare,Icould____myoldfriend.

　　A.pickupB.makeupC.pickoutD.leaveout

　　24.---DoesBilldohisnewjobwell?

　　---______hisoldjob.I’mafraidthere’snohopeforhim.

　　A.NotbetterthanB.NotdowellasC.NobetterthanD.Notaswellas

　　25.---Doyoureallywanttogoout?

　　---Itmayrain.____Ishallgoout.Idon’tmindtherain.

　　A.AnywayB.OtherwiseC.NowthatD.Orelse

　　26.---Marylookssad.Didyoutellheraboutthebadnews?

　　---Yes,butI______herlater.

　　A.shouldhavetoldB.shouldn’thavetold

　　C.musthavetoldD.needn’thavetold

　　27.---Whatlies______themountains?

　　---Abeautifulfreshlake.

　　A.overB.acrossC.beyondD.through

　　28.--HasMr.Robee______?

　　--Itwilltakeaperiodoftwoweeksafterhisoperation.

　　A.recoveredB.uncoveredC.discoveredD.restored

　　29.Allthepartsoftheproductsrequiretestingagainbeforetheyare_______.

　　A.forsaleB.onsaleC.soldoutD.tosale

　　30.Onceyouareinanewculture,youneedto_____yourselfforatime,beforeyou______it

　　A.fit;getusedtoB.suit;usedtoC.adjust;getusedtoD.correct;usedto

　　31.--It’simpossiblethatJoneswillpassthedrivingtest.

　　--Butshewishshe______.

　　A.doesB.wouldC.shouldD.will

　　32.----CanIlookatthemenuforamoreminutesbeforeIdecide?

　　---Ofcourse.________Sir.

　　A.MakeyourselfathomeB.Enjoyyourself

　　C.Itdoesn’tmatter.D.Takeyourtime

　　33.He_______upearlysincehischildhood.

　　A.usedtogetB.isusedtoget

　　C.hasbeenusedtogetD.hasbeenusedtogetting

　　34.Seeingthehappy________ofchildrenplayinginthepark,I’mfullofjoyandconfidenceinthefutureofourcountry.

　　A.sightB.sceneC.viewD.sign

　　35.---Whichofthetwoshirtswouldyouliketotake?

　　--__________.There’snotmuchdifferencebetweenthem.

　　A.AnyoneB.EitherC.BothD.None

　　第二节：完形填空（共20小题，每小题1.5分，满分30分）

　　阅读下面短文，掌握其大意，然后从所给的A、B、C、D四个选项中，选出一个*佳选项，并在答题卡上将该项涂黑。

　　Itwasautumn.Athinwhitemoonroseoverthevalley.Peter,11yearsold,didnotseeit.Hedidnotfeelthecoolwind36hisface,forhisthoughts_37__onaredandblack38onthetable,whichwasa39fromhisfathertohisgrandfather.TheysaidthatGrandpawas40.

　　Peterhad41believedFatherwouldsendGrandpaaway.Now,therewasthethingFatherhadbought42verymorning.ThiswasthelasteveningheandGrandpawouldhavewitheachother.Afterwashingthe43dishes,theoldmantookuptheblanket.“Whata44doubleblanket!I’llnotfeelcoldwithit,”saidtheoldman,45itoverhisknees.

　　“Oh,yes!”Petersaidandtriedto46backthetearsinhiseyes.

　　Justthen47cametwopeople,Fatherandthegirlhewasto48.ThegirlwentuptoGrandpaandsaidPrettily,“I’llnotbe49youinthemorning,soIcameovertosaygood-bye.”

　　“It’sniceofyou,”saidGrandpa.“Willyoulookatthis?Isn’titafineblanketmysonhasgivenmetogoawaywith?”

　　“Yes,really,”shesaid,Shefeltitandsaid50,“Adoubleone!Itmusthavecostmuch..Hedoesn’tneedadoubleone.”

　　“Sheis51,Father,”theboysaid,“Here,Father.”Heheldouta52ofscissors（剪刀）.“Cuttheblanketinto53.Asingleoneisenoughforanoldman.We’ll54theotherhalf.

　　“Whatdoyou55bythat?”askedFather.

　　“I’llgiveittoyouwhenyouareoldandI’msendingyouaway.”saidtheboyslowly.

　　36.A.beatingB.blowingC.hittingD.brushing

　　37.A.cameB.wentC.werefixedD.weretaken

　　38.A.blanketB.cupC.dishD.jar

　　39.A.debtB.giftC.letterD.will

　　40.A.dyingB.gladC.goingawayD.married

　　41.A.infactB.notreallyC.notsimplyD.obviously

　　42.A.inB.itC.onD.that

　　43.A.breakfastB.cleanC.lunchD.supper

　　44.A.badB.dirtyC.fineD.old

　　45.A.smoothingB.holdingC.cleaningD.putting

　　46.A.comeB.getC.keepD.take

　　47.A.inB.outC.outofD.outside

　　48.A.loveB.helpC.knowD.marry

　　49.A.seeingB.missingC.forgettingD.thinking

　　50.A.anxiouslyB.coldlyC.quietlyD.warmly

　　51.A.cleverB.lyingC.rightD.wrong

　　52.A.bitB.kindC.pairD.piece

　　53.A.oneB.piecesC.halfD.two

　　54.A.spareB.keepC.sellD.use

　　55.A.meanB.sayC.showD.think

　　第二部分：阅读理解（共20小题；每小题2分，满分40分）

　　阅读下列短文,从每题所给的A、B、C、D四个选项中,选出*佳选项。

　　A

　　PhysicistStephenHawkingmovedtohearthospital

　　World-renownedBritishphysicistStephenHawking,authorofsciencebest-sellerABriefHistoryofTime,hasbeentransferredtoaspecialistheartandlunghospitalduetotheeffectsofpneumonia（肺炎）,thehospitalsaidonTuesday.

　　MrHawking,62,whoiswheelchair-boundduetothemotorneurone（运动神经元病）diseasehehassufferedformorethan40years,wasmovedtoPapworthHospitalinCambridge,easternEngland,fromageneralhospitalalsoinhishome.

　　"He'sstableandwasbroughtinyesterday[Monday]morning,"saidaspokeswomanforPapworth,acentreofexcellenceincardiactreatment.

　　CambridgeUniversity,whereMrHawkingisamathematicsprofessor,wasunabletosaywhyhehadbeenmovedbutsaidhehadinitially（*初）gonetohospital"inrelationtothepneumoniahewasbeingtreatedforinDecemberandJanuary".

　　BritishpolicearecurrentlyinvestigatingclaimsmadebynurseslookingafterMrHawkingwhosaythathehadbeenphysicallyabused（*）byhiswife,Elaine.

　　Lastmonththephysicistissuedastatementsayinghe"firmlyandwholeheartedly"rejectedtherumors,describingmediareportsofsupposedassaults（攻击）byhiswifeas"completelyfalse".BriefHistory,whichsoldmorethan10millioncopies,madeMrHawkingamillionaireandoneofthemostfamousscientistsontheplanet.

　　WhenMrHawkingwasdiagnosedwithmotorneuronediseasewhilestillauniversityundergraduate,hislifeexpectancywasputataroundtwoyears,andheisoneofthelongest-survivingsufferersofthecondition.

　　Despitehisillnessandhisneedtospeakthroughanelectronicvoicebox,MrHawkinghascontinuedtotourtheworld,givingsciencelectures.

　　56.Fromthepassagewecansee___________.

　　A.Hawkinghasmovedtoanewhospitaltotreathispneumonia

　　B.Hawkinghasmovedtoanewhospitaltotreathislong-suffereddisease

　　C.Hawkinghasmovedtoanewhospitaltoavoidassaults.

　　D.Hawkinghasmovedtoanewhospitaltogivelectures.

　　57.Itseemsthat_________________.

　　A.Hawkinghasnotgoodrelationwithhiswife.

　　B.Hawkingwillrecoverhisspeech.

　　C.Hawkingisateacher.

　　D.ThefirsthospitalwillnotbeabletocureHawking’sdisease.

　　58.Thewriterwritesthispassagemainlyto___________.

　　A.telloftheseriousnessofHawking’sdisease.

　　B.tellofthefamilylifeofHawking.

　　C.tellofthepresentconditionofHawking.

　　D.Hawking’swealthcomesfromthebook“Abriefhistoryoftime”.

　　59._____hasmadeHawkingamillionaire.

　　A.thebook“Abriefhistoryoftime”B.hislectures

　　C.HisteachingpositionD.Hiswife

　　B

　　TheFourTreasures

　　Inthe5thor6thcenturyJapanadoptedtheChinesewritingsystem.ItisofnosurprisethenthattheJapanese,beingtheindustriouspeoplethattheyare,adoptedthemethodsandideologyoftheChinesewritingsystemaswell.AsproofoftheJapanesesinglemindednesstheyhavestucktothisrigidstyleofwritingforthepast1500years.

　　TheChinesebeliefthatthatgovernmenthasitsfoundationinwritingdedicatedgreatimportancetotheFourTreasuresofWriting:brush,ink,inkstone,andpaper.UponcopyingtheChinesebureaucratic（官僚政治的）systemofgovernmenttheJapanesealsoadoptedtheChineseideaoftheFourTreasures.OnecantracethisbacktoJapan'searliestrecordsfromthe8thcenturywherethebrush,ink,inkstoneandpaperappearasobjectsofadoration.

　　60.Itwasin________thatJapanbegantofollowChinainwriting.

　　A.1500A.D.B.500-600A.D.C.Before5thA.DD.5thor6thB.C.

　　61.ThefourtreasuresforChinais_______________.

　　A.brush,ink,inkstoneandpaper

　　B.beliefs,socialsystems,writingsystemsandideology

　　C.brush,writingsystems,inkstoneandpaper

　　C.brush,ideology,inkandpaper.

　　62.TheJapaneseadoptedChinesewritingsystembecause_______.

　　A.theyareindustriouspeople.

　　B.theyhavesinglemindedness.

　　C.theyadmiredChinesewritingsystem

　　D.theylivedclosetoChina.

　　63.TheJapaneseadoptedthoseofChinain_____ways.

　　A.fourB.threeC.twoD.five

　　C

　　GettingintotheCity

　　FromJohnF.KennedyInternationalAirport

　　Queens:（718）244-4444

　　Distancetomidtown:15miles

　　Timetomidtown:50-60minutes

　　Hoursofoperation:24

　　Traveler’sAid:（718）656-4870

　　MTA-

　　NewYorkCityTransitAuthority

　　130LivingstonSt.,Brooklyn11201;（718）330-1234,.Operatesbusshuttleeve

ry20—30minutestoNYC’sPennStation,PortAuthority,andGrandCentralTerminal（＄13）andtoManhattanhotelsbetween33rdand57thSts.（＄15）.Readercard#230.Adonp.25.

　　SuperShuttle

　　52—1511thSt.,LongIslandCity,Queens11101;（212）209—7000,（800）258—3826,.Door—to—doortransportation,24hours,365days.Lookforthebluevan.Readercard#123.Adonp.39.

　　64.IfyouwanttoknowmoreabouttheMetroCard,youcan.

　　A.visit.

　　B.telephone（212）209—7000or（800）258—3826

　　C.readtheadonpage43ofthebook

　　D.visit

　　65.WhatdoyouknowaboutNewYorkCitysubwaylinesfromthereading?

　　A.Theysupplydoortodoortransportation.

　　B.Theyaredirectlyconnectedwiththeairport.

　　C.Theyrun24hours,365days,markedwithcolors.

　　D.Theyaremarkedwitheithernumbersorletters.

　　66.SupposeyouwanttogettoaManhattanhotelin23rdStreetfromtheairport,you’dbetter.

　　A.takeabusshuttleB.takeabusbyGreenBusLine

　　C.takeSuperShuttleD.takeasubway

　　D

　　Itisnotalwayseasytounderstandinventionsandnewdevelopmentsinscience.Tounderstandfiberoptics（光纤）,however,youcantryanexperiment.

　　Putadroportwoofmilkintotheglassofwater.Turnoffthelights.Shinethelightfromyourflashlight（手电筒）throughthetopoftheglassatanangle（角度）ofabout45degrees.Putapieceofwhitepaperagainsttheglasswhenthebeam（光束）oflightisshining.Movethepapersoyoucanseewherethebeamiscomingoutoftheglass.Youshouldseeaspotoflight.Someofthelighthaspassedthroughthewaterandthroughtheglass.Youseeitonthepaper.Youalsoseeanotherbeamgoingdownintotheglass.Itisbeingreflecteddownintotheglass.

　　Nextmovetheflashlightsothatthebeamiscomingstraighterdown（30degrees）intothewater.Youwillseethesamephenomenon:someofthelightisreflectedbackintotheglass.Andsomeescapesout.Nowmovethebeamoflightfromtheflashlightslowlyupuntilyoucannotseeanylightescaping.Thispointiscalledthe“pointoftotalinternalreflection.”Thewordinternalmeans“inside.”Allthelightisstayinginsidetheglass.Thereisnobeamshowingabrightspotonthewhitepaper.Allthelightenergyisinsidetheglass.

　　Theglassofmilkywaterislikeastrand（线）ofglass.Afiberoptictubeisabundleoflongthinstrandsofglass,reallymanytubes.However,theprinciple（原理）isthesame:atacertainangle,allthelightenergythatgoesintotheglassfibercomesouttheotherend.

　　Lightisenergy.Soundisenergy.Radiowavesandelectricityarebothenergy.Theycanallbechangedintolight,andaslighttheycanalltravelalongaglassfiber.Lighttravelsattherateof186,000milespersecond.Therefore,amessagecantravelthatfastinaglassfiber.Thisistheprinciple,orlawofnature,thatmakesfiberopticswork.

　　67.Whichfigureshowsthelaststepoftheexperiment?

　　68.Thepurposeoftheexperimentistotellus________.

　　A.howfastlighttravelsB.howfiberopticsworks

　　C.howlighttravelsinaglassofwaterD.howfiberopticshelpsmankind

　　69.Intheexperiment,makesthebiggestdifference.

　　A.theangelatwhichtoshinethelightfromtheflashlight

　　B.theamountofwaterintheglassofmilk

　　C.thenumberofdropsofmilktopourintotheglassofwater

　　D.thesizeoftheholethroughwhichtoshinelightfromtheflashlight

　　70.Thelaststepistoprove.

　　A.nobeamisshownonthewhitepaper

　　B.nolightcanbenoticedinsidetheglass

　　C.noreflectioncanbeseen

　　D.noenergyiswasted

　　71.Whichofthefollowingcanbethebesttitle?

　　A.ExperimentofLightTravelB.PrinciplesofFiberOptics

　　C.CommunicationonFiberOpticsD.TheoryofLightTravel

　　E

　　Theorangutan（猩猩）isoneofthefourremainingkindsofman-likeapes（类人猿）leftintheworldtoday.OrangutansarefoundonlyontheislandsofBomeoandSumatra.Theyaregrowingfewer.Thereisadangerthattheymaydieout.

　　Untilthetimebetweenthewars,feworangutanswerekeptinzoos.

　　Littlewasknownaboutthem.Aspeoplecametoknowtheirgentleandinterestingways,theybecamemorepopular.Everyzoowantedtohavesomeofthem,butthenumberoforangutansintheworldwassmall.

　　Afterthelastwar,thenativesfoundtheywouldmakealotofmoneybycatchingandsellingyoungorangutans.Fully-grownandhalf-grownorangutansweremuchtoostrongtobetaken.Theonlyknownwayofcatchingtheyoungwastoshoottheparentsfirst.Thismeantthatorangutanswerelosttowildlifeforeveryonecaught.Italsomeantthatfewerorangutanswereborn.Oncecaughttheyoungweresobadlylookedafterthatatleasthalfofthemdied.Theywereusuallysoldtosomeonewhoknewlittleaboutlookingafterthem.

　　72.Exceptorangutans,howmanykindsofman-likeapseareleftintheworld?

　　A.One.B.TwoC.ThreeD.Four

　　73.BeforetheSecondWorldWar,________.

　　A.peopleknewlittleaboutorangutans

　　B.peopleknewtheymightdisappear

　　C.manyorangutanswerekeptinzoos

　　D.thenumberofthemweresmall

　　74.Whatmakespeoplesurethatorangutansmaydieout?

　　A.Theyarefoundmorepopularinthezoos.

　　B.TheycanlivenowhereexceptBorneoandSumatra.

　　C.Theycometobelovedbypeople.

　　D.Sellingandcatchingthemarethequickestmeanstobecomerich.

　　75.Theynativesonlycaughttheyoungorangutansbecause______.

　　A.theywerewelllookedafter

　　B.theycouldeasilyfitinwiththenewplaces

　　C.theywerelightandeasilytakenway

　　D.theycouldbelosttowildlifeandtamed

　　76.Thecatchoftheyoungorangutansledto______.

　　A.fewerbornbabiesB.thedeathoftheirparents

　　C.thepoorcareandmoredeathoftheyoungD.alloftheabove

　　F

　　Whenaninventionismade,theinventorhasthreepossiblecoursesofactionopentohim:hecangivetheinventiontotheworldbypublishingit,keeptheideasecret,orpatentit.

　　Agranted（批准的）patentistheresultofabargainstruckbetweenaninventorandthestate,bywhichtheinventorgetsalimitedperiodofmonopoly（垄断）andpublishesfulldetailsofhisinventiontothepublicafterthatperiodends.

　　Onlyinthemostexceptionalcircumstances（情况）isthelifespanofapatentextendedtoalter（改变）thisnormalprocessofevents.ThelongestextensionevergrantedwastoGeorgesValensi;his1939patentforcolorTVreceivercircuitrywasextendeduntil1971becauseformostofthepatent'snormallifetherewasnocolourTVtoreceiveandthusnohopeofrewardfortheinvention.

　　Becauseapatentremainspermanentlypublicafterithasended,theshelvesofthelibraryattachedtothepatentofficecontaindetailsofliterallymillionsofideasthatarefreeforanyonetouseand,ifolderthanhalfacentury,sometimesevenre-patent.Indeed,patentexpertsoftenadviseanyonewishingtoavoidthehighcostofconductingasearchthroughlivepatentsthattheonesurewayofavoidingviolationofanyotherinventor'srightistostealadeadpatent.

　　Likewise,becausepublicationofanideainanyotherformpermanentlyinvalidates（使无效）furtherpatentsonthatidea,itistraditionallysafetotakeideasfromotherareasofprint.Muchmoderntechnologicaladvanceisbasedonthesepresumptions（假定）oflegalsecurity.

　　Anyonecloselyinvolvedinpatentsandinventionssoonlearnsthatmost"new"ideasare,infact,asoldasthehills.Itistheirreductiontocommercialpractice,eitherthroughnecessityordedication,orthroughtheavailabilityofnewtechnology,thatmakesnewsandmoney.Thebasicpatentforthetheoryofmagneticrecordingdatesbackto1886.Manyoftheoriginalideasbehind

　　televisionoriginatefromthelate19thandearly20thcentury.EventheVolkswagenrear（后面）enginecarwasanticipated（预见）bya1904patentforacartwiththehorseattherear.

　　77.Thepassageismainlyabout_________

　　A.anapproachtopatentsB.theapplicationforpatents

　　C.theuseofpatentsD.theaccesstopatents

　　78.WhichofthefollowingisTRUEaccordingtothepassage?

　　A.Whenapatentbecomesoutofeffect,itcanbere-patentedorextendedifnecessary.

　　B.Itisnecessaryforaninventortoapplyforapatentbeforehemakeshisinventionpublic.

　　C.Apatentholdermustpublicizethedetailsofhisinventionwhenitslegalperiodisover.

　　D.Onecangetallthedetailsofapatentedinventionfromalibraryattachedtothepatentoffice.

　　79.GeorgeValensi'spatentlasteduntil1971because_________

　　A.nobodywouldofferanyrewardforhispatentbeforethattime

　　B.hispatentcouldnotbeputtouseforanunusuallylongtime

　　C.therewerenotenoughTVstationstoprovidecolourprogrammes

　　D.thecolourTVreceiverwasnotavailableuntilthattime

　　80.Fromthepassagewelearnthat________

　　A.aninventionwillnotbenefittheinventorunlessitisreducedtocommercialpractice.

　　B.productsareactuallyinventionswhichweremadealongtimeago

　　C.itismuchcheapertobuyanoldpatentthananewone

　　D.patentexpertsoftenrecommendpatentstoothersbyconductingasearchthroughdeadpatents