2026 英语专四真题试卷及答案

2026英语专四真题试卷及答案第1页共1页2026英语专四真题试卷及答案一、单项选择题（共10小题，每题2分）1.Whichofthefollowingtensesistypicallyusedtodescribeanactionthatstartedinthepastandcontinuesuptothepresent?A.SimplePresentB.SimplePastC.PresentPerfectD.FutureContinuous参考答案：C2.Inthesentence"Thecatchasedthemouse,"whatpartofspeechdoes"chased"represent?A.NounB.VerbC.AdjectiveD.Adverb参考答案：B3.Whatisthecorrectwaytospellthewordmeaning"apersonwhostudiesthepast"?A.His토리stB.HistoristC.HistorianD.His토rian参考答案：C4.Ifthesumoftwoconsecutiveevennumbersis26,whatisthesmallernumber?A.10B.12C.14D.16参考答案：B5.Whichofthefollowingisacorrectuseofthegerundforminasentence?A.Readingbooksisboringtohim.B.Sheenjoystoswimeverymorning.C.Eatingisanhabitforme.D.Heisinterestedinpaintingthehouse.参考答案：A6.Inthecontextofacademicwriting,whatistheprimarypurposeofathesisstatement?A.Tointroducetheauthor'spersonalbackground.B.Tosummarizethemainpointsoftheentirepaper.C.Topresentthecentralargumentorclaimoftheessay.D.Toprovidealistofsourcesusedintheresearch.参考答案：C7.Whichgrammaticalstructureisrepresentedinthesentence"Ihavebeenlivinginthiscityforfiveyears"?A.PresentContinuousB.PresentPerfectContinuousC.PastPerfectD.FuturePerfect参考答案：B8.Whatisthepastparticipleformoftheverb"towrite"?A.WroteB.WrittenC.WritesD.Writing参考答案：B9.Ifatraintravelsataspeedof60milesperhour,howfarwillittravelin3hours?A.20milesB.60milesC.180milesD.360miles参考答案：C10.Whichofthefollowingisanexampleofacompoundsentence?A.Shelovestoreadbooks.B.Thesunsetsinthewest.C.Hewenttothestore,andheboughtmilk.D.Theyareplayingsoccer.参考答案：C二、填空题（共10小题，每题2分）1.Therapiddevelopmentoftechnologyhassignificantly______thewaypeoplecommunicate.参考答案：changed2.Inthesentence"Sheisreadingabook,"theunderlinedword"reading"functionsasa______.参考答案：gerund3.Thenoun"environment"canbebothcountableanduncountable,forexample,"many______"and"a______".参考答案：problems,problem4.Tomakeasentencegrammaticallycorrect,youshouldadda______before"to"inaninfinitivephrase.参考答案：to5.Theadverb"very"isusedtomodify______andadjectives.参考答案：verbs6.Inthepasttense,thesimplepastformof"go"is______.参考答案：went7.Thepassivevoiceisoftenusedtoemphasizethe______ratherthantheactor.参考答案：object8.Theword"ambiguity"referstothequalityofbeing______orhavingmorethanonepossiblemeaning.参考答案：ambiguous9.Inthestructureofaparagraph,the______usuallycomesafterthesupportingsentences.参考答案：conclusion10.Theterm"collocation"referstowordsthatfrequentlyappeartogether,suchas"______andbutter."参考答案：salt,pepper三、判断题（共10小题，每题2分）1.Thepastperfecttenseisusedtodescribeanactionthatwascompletedbeforeanotherpastaction.参考答案：√2.Inthesentence"Thecatchasedthemouse,""themouse"isthesubjectcomplement.参考答案：×3.Theword"ambiguity"meansthequalityofbeingclearoreasytounderstand.参考答案：×4.Thepassivevoiceisalwaysmoreformalthantheactivevoice.参考答案：×5.Themainideaofaparagraphisusuallystatedinthefirstsentence.参考答案：×6.Theverb"tolie"meanstoreclineorrestinahorizontalposition.参考答案：×7.Theword"punctuation"referstothespacesbetweenwordsinasentence.参考答案：×8.Inthepoem"TheRoadNotTaken,"RobertFrostsuggeststhatbothpathsareequallyworn.参考答案：×9.Thesubjunctivemoodisusedtoexpresswishesorhypotheticalsituations.参考答案：√10.Thenovel"1984"waswrittenbyGeorgeOrwellandpublishedin1949.参考答案：√四、简答题（共8小题，每题2分）1.DescribethemaincharacteristicsoftheBritishweather.参考答案：TheBritishweatherischaracterizedbyitsunpredictability,frequentrain,andmildtemperatures.Itoftenchangesrapidly,anditiscommontoexperienceallfourseasonswithinasingleday.Theweathercanbeovercastanddamp,butitcanalsobesunnyandwarm,especiallyduringthesummermonths.2.Explainthedifferencebetween"affect"and"effect".参考答案：Theword"affect"isprimarilyaverbthatmeanstoinfluenceormakeadifferencetosomething.Forexample,"Theweatheraffectedourplans."Ontheotherhand,"effect"isusuallyanounthatreferstotheresultoroutcomeofanaction.Forexample,"Theeffectofthenewpolicywasnoticeable."Themaindifferenceliesintheirgrammaticalfunctionandusageinsentences.3.WhatistheroleofthesubjunctivemoodinEnglish?参考答案：Thesubjunctivemoodisusedtoexpresshypothetical,contrary-to-fact,orwished-forsituations.Itisoftenusedinclausesthatstartwith"if,""wish,""asif,"or"asthough."Forexample,"IfIwereyou,Iwouldcallhim."Inthissentence,thesubjunctivemoodisusedtoexpressahypotheticalsituation.Itisalsousedindemands,suggestions,andrequests,suchas"Isuggestthathebepresent."4.Howdoesthepassivevoicefunctioninsentencestructure?参考答案：Thepassivevoiceisusedtofocusonthereceiveroftheactionratherthantheperformer.Itisformedbyusingtheverb"tobe"initsappropriatetensefollowedbythepastparticipleofthemainverb.Forexample,"ThebookwaswrittenbyJohn."Inthissentence,thefocusisonthebook,whichreceivedtheaction,ratherthanJohn,whoperformedtheaction.Thepassivevoiceisusefulinsituationswheretheperformeroftheactionisunknownorunimportant.5.ListthreecommongrammaticalerrorsmadebyChineselearnersofEnglish.参考答案：ThreecommongrammaticalerrorsmadebyChineselearnersofEnglisharesubject-verbagreementerrors,tenseerrors,andprepositionerrors.Subject-verbagreementerrorsoccurwhenthesubjectandverbdonotagreeinnumber.Forexample,"Shewriteeveryday."Tenseerrorshappenwhenthewrongtenseisused.Forexample,"Hewenttothestoreyesterday,buthedidn'tbuyanything."Prepositionerrorsoccurwhenthewrongprepositionisused.Forexample,"Iaminterestedinthebook."6.Describetheprocessofphotosynthesisinplants.参考答案：Photosynthesisistheprocessbywhichplantsconvertlightenergyintochemicalenergy.Itoccursinthechloroplastsofplantcells,whichcontainthepigmentchlorophyll.Theprocessinvolvestwomainstages:thelight-dependentreactionsandthelight-independentreactions(Calvincycle).Duringthelight-dependentreactions,lightenergyiscapturedandusedtoproduceATPandNADPH.TheseenergycarriersarethenusedintheCalvincycletoconvertcarbondioxideintoglucose.7.Whatarethemainfunctionsoftheliverinthehumanbody?参考答案：Theliverhasseveralmainfunctionsinthehumanbody,includingdetoxification,proteinsynthesis,andproductionofbiochemicalsnecessaryfordigestion.Detoxificationinvolvesfilteringharmfulsubstancesfromtheblood.Proteinsynthesisincludestheproductionofalbuminandclottingfactors.Theliveralsoproducesbile,whichaidsinthedigestionandabsorptionoffats.Additionally,ithelpsregulatebloodsugarlevelsandstoresvitaminsandminerals.8.Explaintheconceptofsupplyanddemandineconomics.参考答案：Supplyanddemandisafundamentaleconomicconceptthatdescribeshowpricesaredeterminedinamarketeconomy.Supplyreferstothequantityofagoodorservicethatproducersarewillingtoofferatvariousprices.Demandreferstothequantityofagoodorservicethatconsumersarewillingtobuyatvariousprices.Thepointwheresupplyanddemandintersectiscalledtheequilibriumprice.Ifthepriceisaboveequilibrium,thereisasurplus;ifthepriceisbelowequilibrium,thereisashortage.五、阅读理解题（共8小题，每题3分）Thelocalcommunitycenterrecentlyorganizedaseriesofworkshopsaimedatimprovingresidents'digitalliteracy.Theworkshopscoveredbasiccomputerskills,onlinesafety,andhowtousedigitalservicesforeverydaytasks.Manyresidents,especiallytheelderly,foundthesesessionsincrediblyhelpfulinnavigatingthemodernworld.Thecenterplanstocontinuetheseworkshopsandevenexpandthemtoincludemoreadvancedtopicslikevideoconferencingande-commerceinthefuture.1.Whatisthemainpurposeoftheworkshopsorganizedbythecommunitycenter?A.Toprovideentertainmentforlocalresidents.B.Toimproveresidents'digitalliteracy.C.Tosellcomputersanddigitaldevices.D.Togathercommunitymembersforsocialevents.参考答案：B2.Whichgroupofpeoplebenefitedthemostfromtheworkshops?A.Youngprofessionals.B.Elderlyresidents.C.Teenagers.D.Businessowners.参考答案：B3.Whattopicswerecoveredintheworkshops?A.Cookingclassesandgardeningworkshops.B.Basiccomputerskillsandonlinesafety.C.Fitnesstrainingandhealthseminars.D.Artclassesandmusicperformances.参考答案：B4.Whataretheplansforfutureworkshops?A.Tofocusonlyonadvancedtopics.B.Tocontinueandexpandthecurrentworkshops.C.Toreplacethemwithsocialevents.D.Tomakethemmandatoryforallresidents.参考答案：B5.Howdotheworkshopshelpresidents?A.Theyprovidefreedigitaldevices.B.Theyimprovetheirabilitytousetechnology.C.Theyofferjobtrainingopportunities.D.Theyconnectthemwithlocalbusinesses.参考答案：B6.Whatdoesthephrase"navigatingthemodernworld"likelymean?A.Travelingaroundthecity.B.Understandingandusingtechnology.C.Participatingincommunityevents.D.Learningnewlanguages.参考答案：B7.Whydidtheelderlyresidentsfindtheworkshopshelpful?A.Theylearnedhowtostarttheirownbusinesses.B.Theycouldcommunicatewiththeirgrandchildrenmoreeasily.C.Theyreceivedfreemealsduringthesessions.D.Theylearnedhowtoinvestinstocksandbonds.参考答案：B8.Whatisthetoneofthepassage?A.Informativeandpersuasive.B.Humorousandlight-hearted.C.Descriptiveandobjective.D.Emotionalanddramatic.参考答案：C标准答案与解析一、单项选择题1.参考答案：C解析：Thepresentperfecttenseisusedtodescribeactionsthatbeganinthepastandcontinueuptothepresent.Forexample,"Ihavelivedhereforfiveyears"indicatesthattheactionoflivingherestartedinthepastandisstillongoing.OptionA,thesimplepresenttense,isusedforhabitualactions.OptionB,thesimplepasttense,isusedforactionsthatarecompletedinthepast.OptionD,thefuturecontinuoustense,isusedtodescribeactionsthatwillbeongoinginthefuture.2.参考答案：B解析：Inthesentence"Thecatchasedthemouse,""chased"istheverb,asitdescribestheactionperformedbythesubject"thecat."OptionA,noun,referstoaperson,place,orthing.OptionC,adjective,describesanoun.OptionD,adverb,modifiesaverb,adjective,oranotheradverb.3.参考答案：C解析：Thecorrectspellingofthewordmeaning"apersonwhostudiesthepast"is"historian."OptionAandDhaveincorrectspellings.OptionB,"historist,"isnotastandardEnglishword.4.参考答案：B解析：Letthesmallerevennumberbex.Thenthelargerevennumberisx+2.Accordingtotheproblem,x+(x+2)=26.Solvingforx:2x+2=26,2x=24,x=12.Therefore,thesmallernumberis12.5.参考答案：A解析：Thesentence"Readingbooksisboringtohim"correctlyusesthegerundform"reading"asthesubjectofthesentence.OptionBincorrectlyuses"toswim"insteadof"swimming."OptionChasagrammaticalerrorwith"anhabit."OptionDincorrectlyuses"painting"asagerund.6.参考答案：C解析：Theprimarypurposeofathesisstatementinacademicwritingistopresentthecentralargumentorclaimoftheessay.Itguidesthereaderandsetsthedirectionforthepaper.OptionAisincorrectasitdiscussestheauthor'sbackground.OptionBisincorrectasitdescribessummarizingthepaper.OptionDisincorrectasitreferstosourcelisting.7.参考答案：B解析：Thesentence"Ihavebeenlivinginthiscityforfiveyears"usesthepresentperfectcontinuoustense,whichisformedwith"have/hasbeen+verb-ing."Thistenseisusedtodescribeanactionthatstartedinthepastandcontinuesuptothepresent.OptionA,presentcontinuous,isusedforactionshappeningnow.OptionC,pastperfect,isusedforactionscompletedbeforeanotherpastaction.OptionD,futureperfect,isusedforactionsthatwillbecompletedinthefuture.8.参考答案：B解析：Thepastparticipleformoftheverb"towrite"is"written."OptionA,"wrote,"isthesimplepastform.OptionC,"writes,"isthesimplepresentform.OptionD,"writing,"isthepresentparticipleform.9.参考答案：C解析：Thedistancetraveledbythetraincanbecalculatedusingtheformula:distance=speed×time.Distance=60milesperhour×3hours=180miles.OptionA,20miles,isincorrect.OptionB,60miles,isincorrect.OptionD,360miles,isincorrect.10.参考答案：C解析：Acompoundsentenceconsistsoftwoindependentclausesjoinedbyaconjunctionorasemicolon.Thesentence"Hewenttothestore,andheboughtmilk"isacompoundsentencebecauseitcontainstwoindependentclauses"Hewenttothestore"and"heboughtmilk"joinedbytheconjunction"and."OptionA,"Shelovestoreadbooks,"isasimplesentence.OptionB,"Thesunsetsinthewest,"isasimplesentence.OptionD,"Theyareplayingsoccer,"isasimplesentence.二、填空题1.参考答案：changed解析：Thesentencediscusseshowtechnologyhasalteredcommunicationmethods.Theword"changed"fitsperfectlytoindicateatransformationinthewaypeoplecommunicateduetotechnologicaladvancements.Otheroptionslike"affected"or"influenced"mightseemplausible,but"changed"isthemostdirectandaccuratetermtodescribethesignificantalterationmentioned.2.参考答案：gerund解析：Inthesentence"Sheisreadingabook,""reading"isagerund,whichisaverbformthatfunctionsasanoun.Gerundscanbethesubject,object,orcomplementofasentence.Otheroptionslike"verb,""adjective,"or"noun"donotcorrectlydescribethegrammaticalfunctionof"reading"inthiscontext.3.参考答案：problems,problem解析：Thenoun"environment"canbeusedinbothcountableanduncountableforms.Forexample,"manyproblems"referstomultipleissueswithintheenvironment,while"aproblem"referstoasingleissue.Thisdemonstratestheflexibilityofthenoun"environment"inEnglishgrammar.4.参考答案：to解析：Inthesentence"Shewantstoreadabook,"theword"to"isnecessarytoformtheinfinitivephrase"toread."Theinfinitive"toread"functionsasthedirectobjectoftheverb"wants."Without"to,"thesentencewouldbegrammaticallyincorrect.5.参考答案：verbs解析：Theadverb"very"isusedtomodifyverbsandadjectivestointensifytheirmeaning.Forexample,inthesentence"Sheisveryhappy,""very"modifiestheadjective"happy."Inthesentence"Heveryquicklyfinishedhiswork,""very"modifiestheverb"finished."Otheroptionslike"nouns"or"adverbs"donotcorrectlydescribethewordsthat"very"canmodify.6.参考答案：went解析：Thesimplepastformoftheverb"go"is"went."Thisisaregularverb,anditspasttenseformisformedbyadding"-ed"tothebaseform.Otheroptionslike"going"or"gone"areincorrectformsoftheverb"go."7.参考答案：object解析：Inthepassivevoice,thefocusisontheobjectorthereceiveroftheactionratherthantheactor.Forexample,inthesentence"Thebookwasreadbyher,"thebook(object)isthefocus,nother(actor).Thisstructureisoftenusedtoemphasizetheresultortheobjectoftheaction.8.参考答案：ambiguous解析：Theword"ambiguity"referstothequalityofbeingambiguous,whichmeanshavingmorethanonepossiblemeaningorinterpretation.Forexample,"Thesentenceisambiguous"meansthesentencecanbeunderstoodinmultipleways.Otheroptionslike"clear"or"simple"donotconveythecorrectmeaningof"ambiguity."9.参考答案：conclusion解析：Inthestructureofaparagraph,theconclusionusuallycomesafterthesupportingsentences.Theconclusionsummarizesthemainpointsandprovidesafinalthoughtorstatement.Otheroptionslike"introduction"or"body"donotcorrectlydescribethepositionoftheconclusioninaparagraph.10.参考答案：salt,pepper解析：Theterm"collocation"referstowordsthatfrequentlyappeartogetherinnaturallanguage.Forexample,"saltandpepper"isacommoncollocation,meaningacombinationofsaltandpepperusedincooking.Otheroptionslike"kitchen"or"spices"donotformatypicalcollocationwith"butter."三、判断题1.参考答案：√解析：Thepastperfecttense(e.g.,hadfinished)isindeedusedtodescribeanactionthatwascompletedbeforeanotherpastaction(e.g.,hehadfinishedhishomeworkbeforethemoviestarted).Thistensehelpsestablishasequenceofeventsinthepast.2.参考答案：×解析：Inthesentence"Thecatchasedthemouse,""themouse"istheobjectofthepreposition"chased,"notthesubjectcomplement.Thesubjectcomplementwouldfollowalinkingverbanddescribethesubject(e.g.,Themouseissmall).3.参考答案：×解析：Theword"ambiguity"meansthequalityofbeingunclearoropentomorethanoneinterpretation,notclearoreasytounderstand.Forexample,theambiguityinthesentence"Thebankwasbusy"couldrefertoafinancialinstitutionorariverbank.4.参考答案：×解析：Thepassivevoiceisnotalwaysmoreformalthantheactivevoice.Whileitisoftenusedinformalwritingtoemphasizethereceiveroftheactionratherthantheactor(e.g.,Theexperimentwasconductedbytheteam),theactivevoicecanalsobeformal(e.g.,Theteamconductedtheexperiment).Formalitydependsoncontext,notvoice.5.参考答案：×解析：Themainideaofaparagraphisnotalwaysstatedinthefirstsentence.Itcanappearanywhereintheparagraph,oftenintheconcludingsentence,oritmaybeimpliedthroughout.Forexample,aparagraphmightbeginwithbackgroundinformationbeforestatingthemainidea.6.参考答案：×解析：Theverb"tolie"hasmultiplemeanings.Whileitdoesmeantoreclineorrestinahorizontalposition(e.g.,Heliesonthecouch),italsomeanstotellanuntruth(e.g.,Sheliesaboutherage).Thecontextdeterminesthemeaning.7.参考答案：×解析：Theword"punctuation"referstotheuseofsymbols(e.g.,commas,periods,questionmarks)toclarifymeaningandstructureinwriting,notthespacesbetweenwords.Spacesareusedforseparationbutarenotconsideredpunctuation.8.参考答案：×解析：Inthepoem"TheRoadNotTaken,"RobertFrostsuggeststhatthespeakerbelievesthechosenpathislesstraveled,notthatbothpathsareequallyworn.Thepoememphasizestheindividual'schoiceanditsperceivedsignificance.9.参考答案：√解析：Thesubjunctivemoodisusedtoexpresswishes,hypotheticalsituations,ordemands(e.g.,IfIwereyou,Iwouldaccepttheoffer;Isuggestthathebepromoted).Itofteninvolvesspecificverbforms(e.g.,"were"insteadof"was").10.参考答案：√解析：Thenovel"1984"wasindeedwrittenbyGeorgeOrwellandpublishedin1949.Itisadystopiannovelthatexploresthemesoftotalitarianism,surveillance,andindividuality.四、简答题1.参考答案：TheBritishweatherischaracterizedbyitsunpredictability,frequentrain,andmildtemperatures.Itoftenchangesrapidly,anditiscommontoexperienceallfourseasonswithinasingleday.Theweathercanbeovercastanddamp,butitcanalsobesunnyandwarm,especiallyduringthesummermonths.解析：本题考查英国天气的主要特征。英国天气以其不可预测性、频繁的降雨和温和的温度为特点。这种天气变化迅速，一天内可能经历四季。常见的天气状况是阴天和潮湿，但在夏季，天气也可能晴朗温暖。这些特点是由于英国所处的地理位置和气候类型造成的。理解这些特征有助于更好地了解英国的自然环境和文化。2.参考答案：Theword"affect"isprimarilyaverbthatmeanstoinfluenceormakeadifferencetosomething.Forexample,"Theweatheraffectedourplans."Ontheotherhand,"effect"isusuallyanounthatreferstotheresultoroutcomeofanaction.Forexample,"Theeffectofthenewpolicywasnoticeable."Themaindifferenceliesintheirgrammaticalfunctionandusageinsentences.解析：本题考查动词"affect"和名词"effect"的区别。动词"affect"主要表示影响或对某事产生差异，例如"Theweatheraffectedourplans."而名词"effect"通常指行动的结果或后果，例如"Theeffectofthenewpolicywasnoticeable."它们的区别主要在于语法功能和句子中的使用方式。掌握这一区别有助于更准确地使用这两个词。3.参考答案：Thesubjunctivemoodisusedtoexpresshypothetical,contrary-to-fact,orwished-forsituations.Itisoftenusedinclausesthatstartwith"if,""wish,""asif,"or"asthough."Forexample,"IfIwereyou,Iwouldcallhim."Inthissentence,thesubjunctivemoodisusedtoexpressahypotheticalsituation.Itisalsousedindemands,suggestions,andrequests,suchas"Isuggestthathebepresent."解析：本题考查虚拟语气的作用。虚拟语气用于表达假设的、与事实相反的或愿望的情况。它通常用于以"if,""wish,""asif,"或"asthough"开头的从句中。例如"IfIwereyou,Iwouldcallhim."在这个句子中，虚拟语气用于表达一个假设的情况。它还用于需求、建议和要求中，例如"Isuggestthathebepresent."4.参考答案：Thepassivevoiceisusedtofocusonthereceiveroftheactionratherthantheperformer.Itisformedbyusingtheverb"tobe"initsappropriatetensefollowedbythepastparticipleofthemainverb.Forexample,"ThebookwaswrittenbyJohn."Inthissentence,thefocusisonthebook,whichreceivedtheaction,ratherthanJohn,whoperformedtheaction.Thepassivevoiceisusefulinsituationswheretheperformeroftheactionisunknownorunimportant.解析：本题考查被动语态在句子结构中的作用。被动语态用于强调动作的承受者而不是执行者。它由适当的时态的"tobe"动词加上主要动词的过去分词构成。例如"ThebookwaswrittenbyJohn."在这个句子中，重点是书，它接受了动作，而不是John，他执行了动作。被动语态在执行者未知或不重要的情况下非常有用。5.参考答案：ThreecommongrammaticalerrorsmadebyChineselearnersofEnglisharesubject-verbagreementerrors,tenseerrors,andprepositionerrors.Subject-verbagreementerrorsoccurwhenthesubjectandverbdonotagreeinnumber.Forexample,"Shewriteeveryday."Tenseerrorshappenwhenthewrongtenseisused.Forexample,"Hewenttothestoreyesterday,buthedidn'tbuyanything."Prepositionerrorsoccurwhenthewrongprepositionisused.Forexample,"Iaminterestedinthebook."解析：本题要求列举中国英语学习者常见的三个语法错误。常见的错误包括主谓一致错误、时态错误和介词错误。主谓一致错误发生在主语和谓语在数量上不一致时，例如"Shewriteeveryday."时态错误发生在使用了错误的时态时，例如"Hewenttothestoreyesterday,buthedidn'tbuyanything."介词错误发生在使用了错误的介词时，例如"Iaminterestedinthebook."6.参考答案：Photosynthesisistheprocessbywhichplantsconvertlightenergyintochemicalenergy.Itoccursinthechloroplastsofplantcells,whichcontainthepigmentchlorophyll.Theprocessinvolvestwomainstages:thelight-dependentreactionsandthelight-independentreactions(Calvincycle).Duringthelight-dependentreactions,lightenergyiscapturedandusedtoproduceATPandNADPH.TheseenergycarriersarethenusedintheCalvincycletoconvertcarbondioxideintoglucose.解析：本题考查植物光合作用的过程。光合作用是植物将光能转化为化学能的过程，发生在植物细胞的叶绿体中，叶绿体含有色素叶绿素。这个过程包括两个主要阶段：光依赖反应和光独立反应（卡尔文循环）。在光依赖反应中，光能被捕获并用于产生ATP和NADPH。这些能量载体随后在卡尔文循环中用于将二氧化碳转化为葡萄糖。7.参考答案：Theliverhasseveralmainfunctionsinthehumanbody,includingdetoxification,proteinsynthesis,andproductionofbiochemicalsnecessaryfordigestion.Detoxificationinvolvesfilteringharmfulsubstancesfromtheblood.Proteinsynthesisincludestheproductionofalbuminandclottingfactors.Theliveralsoproducesbile,whichaidsinthedigestion