高中英语学习材料（灿若寒星*制作整理）Unit2Englisharoundtheworld同步练习(八)I．完形填空(40分)Computershavebeentaughttoactandspeak,nowthetrickisto_____1themtolisten—tounderstandspokenwords.Sofarspeechrecognitionsystemshavebeenusedbyworkerswhoneedtoenterdata(数据)intoacomputerwhiletheirhandsandeyesare2occupied.Therecognitionofalimitedvocabularyofsinglewordsfromasinglespeakerisprettymuch3problem.Somesystems,however,havetrouble4thenoiseofcrumpling(揉)paperfromthe5ofahumanvoice.Speakersofindependentsystemsthatcanrecognizethesameword6spokenbymanydifferentpeoplecanbebuiltbysampling(提供......样品)howseveralpeoplesaythesamewords7storingseveralpatternsforeachword.Butthechancesforerroraregreaterandthevocabularymustusuallybe8Evenmoredifficultiscontinuousspeech.People9runningwordstogetherandevenchangingsomesoundswhentheyspeak,sothecomputerdoesnotknowwhenonewordendsandanother___10_____,makingtheprocessmuchmore11Itwasreportedthatit12anhouronthelargestcomputerin13usetorecognizeonesecondofcontinuousspeech.Someattemptshavebeenmadeto14continuousspeechrecognitionbygivingthecomputersomerulesofgrammartorestrict15wordcanfollow16otherword.Adevice(装置)hasbeendevelopedthathasa5,000-wordvocabularybut17thespeakerto18betweenwords.Thesedevices,19atthemoment,willrepresentthefirstapplications(应用)ofwhatisconsidereda20butextremelydifficulttechnology.1.A.buildB.developC.getD.make2.A.otherthanB.nootherthanC.otherwiseD.otherways3.A.asolvedB.animpossibleC.anunsolvedD.anunpractical4.A.preventingB.separatingC.selectingD.distinguishing5.A.noiseB.soundC.speechD.words6.A.asB.whenC.thatD.which7.A.asB.whileC.andD.but8.A.limitedB.limitingC.multipliedD.enlarged9.A.wouldB.feellikeC.usedtoD.areusedto10.A.headsB.startsC.endsD.concludes11.A.easyB.uneasyC.differentD.difficult12.A.costB.tookC.spentD.expended13.A.commonB.presentC.currentD.past14.A.cleanB.makeC.correctD.improve15.A.whichB.whatC.someD.such16.A.whichB.theC.someD.still17.A.takesB.requiresC.ordersD.asks18.A.chooseB.stopC.restD.pause19.A.howeverrapidB.howeverslowC.howeverroughD.however20.A.satisfactoryB.costlyC.promisingD.far-fetchedⅡ．阅读理解(60分)ABritishEnglishandAmericanEnglisharealmostexactlythesame.ButthereareminordifferencesbetweenBritishEnglishandAmericanEnglishinthefollowingsmallareas.ThefirstdifferencebetweenBritishEnglishandAmericanEnglishisvocabulary.AlmostallofthewordsusedinBritishEnglishandAmericanEnglishareexactlythesame.Onlyaverysmallnumberofwordsareuseddifferently.TheseconddifferencebetweenBritishEnglishandAmericanEnglishispronunciation.SometimestheAmericansandBritishersdon'tunderstandeachother'spronunciation.Butmostofthetime,theydounderstandeachother'spronunciationbecausemostofthesoundsofthetwodialectsarethesame.Thethirddifferenceisverysmall.Thisisthedifferentspellings.AfewkindsofwordsarespelleddifferentlyinBritishEnglishandAmericanEnglish.21.BritishEnglishandAmericanEnglishare________A.verydifferentlanguagesB.almostthesameC.exactlythesameD.quitedifferentfromeachother22.Accordingtothewriter,minordifferencesbetweenBritishEnglishandAmericanEnglisharefoundintheareasof__________.A.idiomaticexpressions,vocabularyandpronunciationB.pronunciation,vocabularyandspellingC.grammar,idiomaticexpressionsandspellingD.grammar,spelling,vocabulary23.WhichofthefollowingwordshavedifferentspellingsbutthesamepronunciationinBritishEnglishandAmericanEnglish?A.Doc...
