专升本英语专项练习（考点速记）

专升本英语专项练习（考点速记）一、单项选择题（每题2分，共20分）1.InthecontextofEnglishgrammar,whatisthecorrectuseofthepassivevoicewhendescribingacompletedactionperformedbyanunknownagent?A.Theexperimentwasconductedbysomeoneyesterday.B.Theexperimenthasbeenconductedbysomeoneyesterday.C.Theexperimentwillbeconductedbysomeoneyesterday.D.Theexperimentwasconductedbyanyoneyesterday.解析：选项A正确使用了一般过去时的被动语态，符合"主语+be动词+过去分词"的结构。选项B时态错误（现在完成时不能与具体过去时间状语连用），选项C时态错误（将来时不符合"考点速记"的现在时态要求），选项D"anyone"与被动语态搭配不当。被动语态常用于强调动作结果而非施动者，如"Errorsweremadeinthecalculation."（计算中出现了错误）。2.Howshouldthearticle"the"beusedwhenreferringtoaspecificscientificphenomenoninacademicwriting?A.Thegravityaffectsallobjectsequally.B.Agravityaffectsallobjectsequally.C.Thegravitiesaffectallobjectsequally.D.Angravityaffectsallobjectsequally.解析：选项A正确，因为"gravity"作为科学术语的专有名词前必须用定冠词"the"。选项B缺少定冠词，选项C错误地使用了复数形式，选项D不定冠词应用错误（"gravity"以/g/音开头）。学术写作中，如"thegreenhouseeffect"（温室效应）等专有名词前均需定冠词。3.Inthesentence"Despitetheheavyrain,theycompletedtheprojectontime,"whatgrammaticalstructureisemployedtoshowcontrast?A.ParticiplephraseB.InfinitivephraseC.AdverbialclauseD.Absolutephrase解析：选项C正确，"Despitetheheavyrain"是让步状语从句，由"despite"引导，表达转折关系。选项A"Despite"不是分词，选项B缺少不定式结构，选项D绝对分句需有逻辑主语。此类结构常用于"Although/Though/Despite"引导的从句，如"Althoughhewastired,hecontinuedworking."4.WhichpunctuationmarkiscorrectlyusedtoindicateadirectquoteinEnglish?A.CommasB.ParenthesesC.DashesD.Quotationmarks解析：选项D正确，直接引语必须用双引号（"..."）或单引号（'...'）标注。选项A逗号用于插入语，选项B括号用于补充说明，选项C破折号表示强调或转折。例如："Theprofessorsaid,'Thistheoryrevolutionizedmodernphysics.'"5.InthecontextofEnglishvocabulary,whatisthemostappropriatesynonymfor"ubiquitous"inapassageabouttechnology?A.RareB.PervasiveC.ComplexD.Expensive解析：选项B正确，"ubiquitous"意为"无处不在的"，与"pervasive"（普遍存在的）语义最接近。选项A与词义相反，选项C描述结构特征，选项D描述成本属性。科技类文章常用如"Artificialintelligenceisnowpervasiveindailylife."6.Howshouldthepastperfecttensebeusedtodescribeanactionthatoccurredbeforeanotherpastevent?A.Shehadwrittenthereportbeforethemeeting.B.Shewrotethereportbeforethemeeting.C.Shewillhavewrittenthereportbeforethemeeting.D.Shewaswritingthereportbeforethemeeting.解析：选项A正确，表示"会议前已经完成写报告"，符合"过去动作先于过去动作"的规则（had+过去分词）。选项B是一般过去时，选项C是将来完成时，选项D是过去进行时。例如："Hehadfinishedtheexperimentbeforethesupervisorarrived."7.Inacademicwriting,whatisthepurposeofusingpassivevoicewhentheagentofanactionisunknownorirrelevant?A.ToemphasizetheagentB.ToreduceclarityC.TofocusontheactionorobjectD.Toincreasesentencecomplexity解析：选项C正确，被动语态隐藏施动者（如"Theexperimentwasconducted"），使读者关注实验本身而非执行者。选项A与被动语态功能相反，选项B会降低可读性，选项D不是主要目的。科研论文常用被动如："Thesamplesweretestedat100°C."8.Howshouldthesecondconditionalbestructuredtodescribeahypotheticalpresentsituation?A.IfIhadstudiedharder,Iwouldpassnow.B.IfIstudyharder,Iwillpassnow.C.IfIstudiedharder,Iwouldpassnow.D.IfIpassnow,Iwouldhavestudiedharder.解析：选项C正确，第二条件句（假设性）现在时态结构为"If+主语+一般现在时，主语+would/could/might+动词原形"。选项A和D时态错误，选项B是一般条件句。例如："IfIweremorediligent,Iwouldachievebettergrades."9.Inthephrase"aseriesofexperiments,"whatarticleshouldbeusedbefore"series"?A.NoarticleB.TheC.AD.BothAandB解析：选项C正确，"series"作为可数名词前必须加不定冠词，除非是固定搭配（如"theUnitedNations"）。例如："Aseriesofbreakthroughsoccurredin2020."学术写作中常见如："Theexperimentyieldedaseriesofunexpectedresults."10.Howshouldthepastperfectcontinuoustensebeusedtodescribeanactionthatwasongoingbeforeanotherpastevent?A.Shehadbeenstudyingforthreehourswhenthephonerang.B.Shewasstudyingforthreehourswhenthephonerang.C.Shewillhavebeenstudyingforthreehourswhenthephonerings.D.Shehasbeenstudyingforthreehourswhenthephonerang.解析：选项A正确，表示"电话响前已经持续学习三小时"，符合"过去持续动作被另一过去动作打断"的规则（hadbeen+现在分词）。选项B是一般过去时，选项C将来时态错误，选项D现在完成时态错误。例如："Theyhadbeenresearchingforsixmonthsbeforesubmittingthepaper."二、填空题（每空2分，共20分）1.Thepassivevoiceisoftenusedinscientificwritingto______theobjectoftheactionratherthantheagent,asthefocusshouldbeonthe______oftheexperiment.______,______,______参考答案：emphasize/results/becausetheidentityoftheresearcherisirrelevant解析：第一空填"emphasize"（强调），第二空填"results"（结果），第三空填"becausetheidentityoftheresearcherisirrelevant"（因为研究者的身份无关紧要）。学术写作中被动语态隐藏施动者，如"Theproteinwaspurifiedthroughchromatography."2.Inthesecondconditional,thepastunrealconditionalisformedbyusing______inthe"if"clauseand______inthemainclause,typicallytodescribeanunlikelypresentsituation.______,______参考答案：pastsimple/would+baseverb解析：第二条件句结构为"If+主语+过去式，主语+would+动词原形"，如"IfIhadmoretime,Iwouldreadmorebooks."表达与现在事实相反的假设。3.Thearticle"the"mustbeusedbefore______nounsthatdenoteuniqueorspecificentities,suchas______or"thesun."______,______参考答案：proper/specific/theMoon解析：专有名词（如"theEarth"）和独一无二的事物（"thesun"）前必须加定冠词。例如："TheGreatWallisinChina."但普通可数名词前通常不用冠词，如"Mountainsaretall."4.Inacademiccitations,thepassivevoiceispreferredwhen______themethodofdatacollection,asit______thefocusontheresearchprocessratherthantheresearcher.______,____________,______参考答案：describing/shifts解析：第一空填"describing"（描述），第二空填"shifts"（转移），第三空填"thefocusontheresearchprocess"（研究过程），第四空填"ratherthantheresearcher"（而不是研究者）。例如："Thedatawascollectedthroughsurveys."5.Thepastperfectcontinuoustenseisformedwith______+subject+______+______,andisusedtodescribeanactionthat______beforeanotherpastevent.______,______,______,______参考答案：hadbeen/been/doing/hadstarted解析：结构为"hadbeen+现在分词"，如"Shehadbeenworkingsincemorningwhenthebossarrived."表达动作持续到过去某个时间点。6.Informalwriting,theactivevoiceisgenerallymoredirectthanthepassivevoice,asit______the______ofthesentenceand______clarity.______,______,______参考答案：reduces/complexity/improves解析：主动语态（如"Scientistsanalyzedthedata"）比被动语态（"Thedatawasanalyzedbyscientists"）更简洁，减少句子复杂性并提高清晰度。7.Thesecondconditionalisusedtodescribe______hypotheticalsituationsinthepresentorfuture,oftenwiththemodalverb______inthemainclause.______,______参考答案：hypothetical/would解析：第二条件句表达假设性情况，如"IfIwereabird,Iwouldfly."使用"would"表示与现在事实相反的假设。8.Inacademicwriting,thearticle"the"shouldnotbeusedbefore______nounswhenreferringtoageneralcategory,suchas______or"astudy."______,______参考答案：uncountable/research解析：不可数名词（如"research"）前通常不用冠词，如"Researchshowsthatclimatechangeisaccelerating."但具体化时需加冠词，如"TheresearchwaspublishedinNature."9.Thepastperfecttenseisformedwith______+subject+______,andisusedtodescribeanactionthat______beforeanotherpastevent.______,______,______参考答案：had+pastparticiple/hadfinished解析：结构为"had+过去分词"，如"TheyhadleftbeforeIarrived."表达过去的过去。10.InformalEnglish,thepassivevoiceshouldbeusedwhenthe______oftheactionisunknownorunimportant,asit______theobjectoftheaction.______,______参考答案：agent/focuses解析：被动语态隐藏施动者，如"Theexperimentwassuccessful."强调实验结果而非执行者。三、判断题（每题2分，共20分）1.Thepresentperfectcontinuoustenseisusedtodescribeactionsthatstartedinthepastandcontinuetothepresent.参考答案：正确解析：结构为"have/hasbeen+doing"，如"Ihavebeenstudyingfortwohours."表示动作从过去持续到现在。但需注意时态匹配，若动作已结束则用现在完成时。2.Thearticle"the"shouldalwaysbeusedbeforeabstractnounsinEnglish.参考答案：错误解析：抽象名词前通常不用冠词，如"Justiceisblind."但具体化时需加冠词，如"Thejusticesystemneedsreform."3.Thesecondconditionalisusedtodescriberealorlikelysituations,nothypotheticalones.参考答案：错误解析：第二条件句（If+过去式，would+动词原形）专门用于表达与现在事实相反的假设，如"IfIwererich,Iwouldtraveltheworld."4.Thepastperfectcontinuoustenseisunnecessarybecausethepastperfecttensealonecanconveythesamemeaning.参考答案：错误解析：两者功能不同。过去完成时（haddone）强调过去的完成，而过去完成进行时（hadbeendoing）强调动作的持续性，如"Theyhadbeenwaitingforanhourwhenhearrived."5.Thepassivevoiceisalwaysmoreformalthantheactivevoiceinacademicwriting.参考答案：正确解析：被动语态常用于强调客观性（如"Theexperimentwasconducted"），符合学术写作的客观要求，比主动语态（"Weconductedtheexperiment"）更正式。6.Thearticle"the"shouldbeusedbeforeanysingularcountablenouninEnglish.参考答案：错误解析：专有名词（如"theUnitedStates"）和独一无二的事物（如"thesun"）前必须加冠词，但普通名词前通常不用，如"Mountainsarebeautiful."7.Thepresentperfecttenseisusedtodescribeactionsthatwillbecompletedinthefuture.参考答案：错误解析：现在完成时（have/hasdone）描述过去发生且与现在有关的行为，如"Ihavefinishedthereport."未来动作用将来时（willdo）。8.Thesecondconditionalisformedwith"if+presentsimple,will+baseverb."参考答案：错误解析：这是第一条件句（真实条件句）的结构，第二条件句为"If+pastsimple,would+baseverb"，如"IfIhadmoretime,Iwouldreadmorebooks."9.Thepassivevoiceshouldalwaysbeavoidedinformalwritingbecauseitisvague.参考答案：错误解析：被动语态在强调客观性时不可替代，如"Errorswerefoundinthedata."但过度使用会显得冗长，应适度使用。10.Thepastperfectcontinuoustenseisusedtodescribeactionsthatwillcontinueintothefuture.参考答案：错误解析：这是将来完成进行时（willhavebeendoing）的功能，过去完成进行时（hadbeendoing）描述过去的持续动作，如"Theyhadbeenworkingfortenyearsbeforetheyretired."四、简答题（每题2分，共16分）1.Explainthedifferencebetweenthepresentperfecttenseandthepresentperfectcontinuoustenseinacademicwriting.参考答案：-Presentperfect(have/hasdone)isusedtodescribeactionsthathappenedinthepastbuthaverelevancetothepresent,oftenwithresults.Example:"Newresearchhasbeenpublished."-Presentperfectcontinuous(have/hasbeendoing)emphasizesthedurationofanactionuptothepresent.Example:"Scientistshavebeenresearchingthistopicforfiveyears."解析：两者均与现在有关，但前者强调结果，后者强调持续性。学术写作中，前者用于总结过去研究，后者用于描述研究时长。2.HowshouldarticlesbeusedbeforeuncountablenounsinformalEnglish?参考答案：-Uncountablenouns(e.g.,research,information)usuallydonottakearticlesingeneralcontexts.Example:"Climatechangeisaseriousissue."-Articlesareneededwhenquantifyingorspecifying.Example:"TheresearchwaspublishedinNature."解析：不可数名词前通常不用冠词，但具体化时需加"the"或"a/an"，如"Datashows..."vs"Thedatashows..."3.Describethestructureandusageofthesecondconditionalinhypotheticalscenarios.参考答案：-Structure:If+pastsimple,would+baseverb.Example:"IfIhadmorefunding,Iwouldexpandthestudy."-Usage:Describesunlikelypresent/futuresituations.Example:"Iftheexperimentwererepeated,differentresultsmightoccur."解析：用于表达与事实相反的假设，常用于学术讨论中的可能性分析。4.Whyisthepassivevoicepreferredinsomescientificpapers?参考答案：-Tofocusontheresearchmethodratherthantheresearcher.Example:"Thesampleswereheatedto100°C."-Toavoidpersonalbias.Example:"Thehypothesiswastested."-Toalignwithdisciplinaryconventions.解析：科学写作强调客观性，被动语态隐藏研究者身份，使读者关注实验本身。5.Howdoesthepastperfectcontinuoustensedifferfromthepastperfecttense?参考答案：-Pastperfect(haddone):Emphasizescompletionbeforeanotherpastevent.Example:"Theexperimenthadbeencompleted."-Pastperfectcontinuous(hadbeendoing):Emphasizesdurationbeforeanotherpastevent.Example:"Theexperimenthadbeenrunningfortwohours."解析：前者强调动作完成，后者强调持续时长，常用于描述准备过程。6.Whatisthepurposeofusingthearticle"the"beforepropernounsinEnglish?参考答案：-Tospecifyuniqueentities.Example:"TheEarthorbitsthesun."-Torefertospecificorganizationsorinstitutions.Example:"TheUniversityofOxfordwasfoundedin1096."解析：专有名词前通常加"the"，除非是固定搭配（如"theUnitedNations"）。7.Howshouldquantifierslike"afew"and"few"beusedinacademicwriting?参考答案：-"Afew"(肯定):Smallbutnonzeroamount.Example:"Afewerrorswerefound."-"Few"(否定):Smallamount,implyingscarcity.Example:"Fewparticipantscompletedthesurvey."解析：学术写作中需精确表达数量，避免模糊表述。8.Whyshouldtheactivevoicebeusedinsomecontextsoverthepassivevoice?参考答案：-Toemphasizetheresearcher'srole.Example:"Weconductedtheexperiment."-Toimproveclarityandconciseness.Example:"Theteamanalyzedthedata."-Toavoidambiguitywhentheagentisknown.解析：主动语态在明确施动者时更直接，如介绍研究方法时。五、应用题（每题4分，共24分）1.Rewritethefollowingsentenceusingthepassivevoicetofocusontheexperimentratherthantheresearchers:"Ourteamconductedtheexperimentat5°C."参考答案："Theexperimentwasconductedat5°C."解析：将主动语态（"Weconducted"）改为被动语态（"Theexperimentwasconducted"），隐藏研究者身份，符合科学写作规范。2.Transformthefollowingsentenceintothesecondconditionaltodescribeahypotheticalpresentsituation:"Ifshehadmoreresources,shewouldexpandthestudy."参考答案："Ifshehadmoreresources,shewouldbeexpandingthestudynow."解析：第二条件句描述与现在事实相反的情况，需将"would"改为"wouldbe+现在分词"，强调持续性。3.Correctthefollowingsentencebyaddingorremovingarticleswherenecessary:"Ireadabooksaboutquantumphysicsyesterday."参考答案："Ireadabookaboutquantumphysicsyesterday."解析：不可数名词"books"前应加不定冠词"a"，且复数形式错误，应为单数名词"book"。4.Rewritethefollowingsentenceusingthepastperfectcontinuoustensetoemphasizethedurationoftheaction:"Theyfinishedtheexperimentbeforethedeadline."参考答案："Theyhadbeenfinishingtheexperimentbeforethedeadline."解析：过去完成进行时强调动作持续到过去某个时间点，但需注意时态逻辑，此处改为过去完成进行时不合语法，正确应为"hadfinished"。修正参考答案："Theexperimenthadbeenfinishedbeforethedeadline."（被动语态）或保持原句"hadfinished"（过去完成时）。5.Rewritethefollowingsentencetomakeitmoreformalbyusingthepassivevoice:"Thesupervisorreviewedtheproposal."参考答案："Theproposalwasreviewedbythesupervisor."解析：将主动语态改为被动语态，强调提案本身而非执行者，符合学术写作的客观性要求。6.Transformthefollowingsentenceintothesecondconditionaltodescribeanunlikelypresentsituation:"Ifthedataweremoreac