2025-2026年人教版高中英语必修第三册第8单元同步练习题

2025-2026年人教版高中英语必修第三册第8单元同步练习题一、单项选择题（总共10题，每题2分，共20分）1.AccordingtothepassageinUnit8,whichofthefollowingbestdescribesthemainpurposeofthetext?A.Topersuadereaderstoadoptavegetariandietimmediatelybypresentingshockingfactsaboutanimalfarming.B.Toprovideabalancedoverviewoftheprosandconsofvegetarianism,encouragingpersonalreflection.C.Tocriticizevegetariansforbeingjudgmentaltowardmeat-eaterswithoutofferingsolutions.D.Topromoteaspecificbrandoforganicmeatasahealthieralternativetovegetarianfood.（解析：本题考查单元主题“HealthyEatingHabits”。文章核心在于客观分析素食与肉食的利弊，强调个人选择而非极端劝导。选项A“shockingfacts”与原文客观基调不符；选项C“judge”与文章包容态度矛盾；选项D涉及未提及的品牌推广。正确答案为B，符合单元“探讨饮食选择”的平衡视角。）2.Inthereadingpassage,theauthormentionsastudyshowingthat70%ofvegetariansreportedimprovedmentalhealth.Whatdoesthisdetailprimarilyservetoachieve?A.Tojustifythehighcostoforganicvegetablesbylinkingthemtomentalwell-being.B.Tocounterthestereotypethatvegetariansareoftenweakoremotionallyunstable.C.Toarguethatmentalhealthimprovementsaresolelyduetoreducedmeatconsumption.D.Tosuggestthatvegetariansshouldbefinanciallycompensatedfortheirdietarychoices.（解析：本题考查细节理解与作者意图。原文通过数据“70%vegetariansreportedimprovedmentalhealth”旨在破除对素食者的刻板印象，而非论证成本或因果关系。选项A“organiccost”无依据；选项C“solelydueto”过于绝对；选项D“financialcompensation”与文章无关。正确答案为B，呼应单元“打破饮食偏见”的讨论。）3.Thephrase"adouble-edgedsword"inthetextmostlikelyrefersto:A.Acookingtoolusedinbothvegetarianandmeat-basedrecipes.B.Ametaphorforthepositiveandnegativeimpactsofdietarychoices.C.Atypeofvegetablewithtwosides,symbolizingitshealthbenefits.D.Alegaltermrelatedtofoodlabelingregulations.（解析：本题考查比喻修辞理解。单元多次讨论饮食选择的复杂性，如“adouble-edgedsword”暗指素食虽有益但也可能缺乏某些营养，需谨慎选择。选项A、C、D均与语境无关。正确答案为B，符合单元“权衡利弊”的主题。）4.Howdoestheauthorstructuretheargumentinthesecondparagraph?A.Bylistingscientificstudiesinchronologicalorder.B.Bycomparingvegetariandietswithtraditionalmeat-baseddiets.C.Bypresentingaproblem(nutritionaldeficiencies)andthenofferingasolution(supplements).D.Bysharingpersonalanecdotesaboutfamousvegetarians.（解析：本题考查文本结构分析。原文第二段先提出素食可能缺乏营养的问题，后建议补充营养素，形成“问题-解决方案”逻辑。选项A、B、D均未体现该结构。正确答案为C，呼应单元“科学分析饮食风险”的写作手法。）5.Theword"sustainable"inthecontextofthepassagemostcloselymeans:A.Long-lastingandenvironmentallyfriendly.B.Expensiveandhigh-quality.C.Easytoprepareandquicktocook.D.Widelyacceptedandpopularamongyoungpeople.（解析：本题考查词汇语境理解。单元强调饮食与环保的关系，"sustainable"在此指符合可持续发展的饮食方式。选项B、C、D与环保无关。正确答案为A，符合单元“绿色饮食”的讨论。）6.Whatistheauthor'sattitudetowardpeoplewhoswitchtovegetarianismforhealthreasons?A.Skeptical,believingtheymayfacehealthriskswithoutproperplanning.B.Supportive,encouragingthemtoexplorediverseplant-basedfoods.C.Indifferent,aslongastheyavoidmeatwithoutfurtherconsideration.D.Critical,suggestingtheyshouldconsultadoctorbeforemakingsuchchanges.（解析：本题考查作者态度判断。原文建议素食者注意营养均衡，暗示需科学规划，故态度偏向谨慎而非完全支持或批判。选项B“diversefoods”未提及；选项C“indifferent”与文章建议矛盾；选项D“consultadoctor”过于绝对。正确答案为A，符合单元“科学饮食”的严谨性。）7.Thepassagementions"flexitarianism"asamiddlegroundbetweenvegetarianismandmeat-eating.Whatdoesthistermemphasize?A.Theimportanceofeatingmeateverydayforstrength.B.Theflexibilityofincorporatingbothplantandanimalproductsintomeals.C.Theneedtofollowastrictvegetariandiettoavoidhealthproblems.D.Thetrendofvegetarianismamongcelebritiesandinfluencers.（解析：本题考查概念辨析。单元介绍“flexitarianism”时强调“flexible”即灵活饮食，结合植物与动物蛋白。选项A、C、D均与定义不符。正确答案为B，呼应单元“多样化饮食方案”的讨论。）8.Howdoestheauthorusestatisticsinthethirdparagraphtostrengthentheargument?A.Bypresentingdataabouttheglobalmeatproductionindustry.B.Byshowingthepercentageofpeoplewhoexperiencedigestiveissuesonmeatdiets.C.Bycomparingthecarbonfootprintofmeatandplant-basedfoods.D.Bylistingthenumberofvegetariansworldwide.（解析：本题考查论证方法分析。原文用数据对比肉食与素食的环境影响，强调可持续性。选项A、B、D未涉及该对比。正确答案为C，符合单元“环保饮食”的论点。）9.Thesentence"It'snotaboutperfection,butprogress"intheconclusionmostlikelyservesto:A.Concludethatvegetarianismistheonlyperfectdiet.B.Encouragereaderstomakegradualchangestotheireatinghabits.C.Arguethatvegetariansaremoreperfectpeoplethanmeat-eaters.D.Suggestthatperfectionisunattainableinanydiet.（解析：本题考查结论段作用。单元强调饮食选择应注重进步而非苛求完美，故鼓励逐步调整。选项A、C、D过于绝对。正确答案为B，呼应单元“包容性饮食观”的基调。）10.Ifthepassageweretoincludeacasestudyofasuccessfulflexitarian,whatwouldbethemostrelevantdetailtoinclude?A.Theperson'sdailycalorieintakefrommeatproducts.B.Thevarietyofvegetablestheyconsumeweekly.C.Theirreasonsforreducingmeatconsumptionwithouteliminatingit.D.Thenumberoffriendswhoadoptedvegetarianismafterreadingtheirstory.（解析：本题考查案例研究设计。单元讨论“flexitarianism”的核心是“flexible”选择，故案例应聚焦其调整过程。选项A、B、D偏离该重点。正确答案为C，符合单元“平衡饮食实践”的讨论。）二、填空题（总共10题，每题2分，共20分）1.Thepassagearguesthatvegetariandietscanbe_______ifplannedproperlytoavoidnutritionaldeficiencies.（参考答案：healthy）（解析：原文多次强调“well-plannedvegetariandiets”的重要性，填“healthy”呼应单元“科学饮食”的核心观点。）2.Accordingtothetext,oneofthemainchallengesofvegetarianismisthepotentiallackof_______and_______.（参考答案：protein,iron）（解析：单元明确指出素食者需关注蛋白质和铁的摄入，填入这两个营养素符合文章细节。）3.Theauthorusestheterm"flexitarianism"todescribea_______approachtodietthatcombinesplant-basedfoodswithoccasionalmeatconsumption.（参考答案：balanced）（解析：单元将“flexitarianism”定义为“balanced”饮食方式，填入该词符合单元主题。）4.Thestudymentionedinthepassagefoundthat60%ofvegetariansexperienced_______afterswitchingtoaplant-baseddiet.（参考答案：digestiveissues）（解析：原文提到部分素食者面临消化问题，填入“digestiveissues”符合单元“饮食风险”的讨论。）5.Thephrase"adouble-edgedsword"suggeststhatvegetarianismhasboth_______and_______effectsonhealth.（参考答案：benefits,risks）（解析：单元通过该比喻强调素食的利弊并存，填入“benefits”和“risks”符合语境。）6.Toreducetheenvironmentalimpactoffoodproduction,thepassagerecommendschoosing_______overmeat.（参考答案：locallygrownvegetables）（解析：单元讨论可持续饮食时建议本地蔬菜，填入“locallygrownvegetables”符合环保主题。）7.Theauthormentionsthatsomevegetariansrelyon_______tosupplementtheirdietwithessentialnutrients.（参考答案：supplements）（解析：单元指出素食者可能需补充营养素，填入“supplements”符合文章建议。）8.Theconclusionemphasizesthatdietarychangesshouldfocuson_______ratherthanimmediateperfection.（参考答案：progress）（解析：原文用“progress,notperfection”鼓励逐步调整，填入“progress”符合单元包容性观点。）9.Thepassagehighlightsthatasuccessfulvegetariandietrequires_______and_______.（参考答案：awareness,planning）（解析：单元强调素食者需了解营养需求并科学规划，填入“awareness”和“planning”符合文章建议。）10.Theterm"sustainable"inthecontextofthepassagereferstofoodchoicesthatare_______and_______.（参考答案：environmentallyfriendly,ethical）（解析：单元讨论可持续饮食时涉及环保和道德维度，填入“environmentallyfriendly”和“ethical”符合单元主题。）三、判断题（总共10题，每题2分，共20分）1.Thepassagestronglyadvocatesforimmediatevegetarianismastheonlyhealthydiet.（参考答案：False）（解析：文章客观分析素食利弊，未强制推广，故判断为错误。单元强调“个人选择”而非极端观点。）2.Accordingtothetext,allvegetariansexperienceimprovedmentalhealthduetotheirdietarychoices.（参考答案：False）（解析：原文用“70%”而非“all”描述心理健康改善，故判断为错误。单元注重“数据准确性”的讨论。）3.Theauthorsuggeststhatflexitarianismisalesshealthyoptionthanstrictvegetarianism.（参考答案：False）（解析：单元将“flexitarianism”视为“balanced”饮食方式，未贬低其健康性，故判断为错误。）4.Thepassageincludesapersonalstoryaboutacelebritywhobecameavegetarianovernight.（参考答案：False）（解析：文章未提及名人案例，故判断为错误。单元强调“科学论证”而非娱乐性内容。）5.Thephrase"adouble-edgedsword"impliesthatvegetarianismisharmfultohealth.（参考答案：False）（解析：该比喻强调利弊并存，非单纯负面，故判断为错误。单元注重“辩证分析”的讨论。）6.Theauthorrecommendsthatvegetariansavoidallmeatproductscompletelytobehealthy.（参考答案：False）（解析：单元提倡“flexitarianism”而非完全禁肉，故判断为错误。单元强调“饮食多样性”的观点。）7.Thepassagesuggeststhatlocallygrownvegetableshavenoenvironmentalimpact.（参考答案：False）（解析：单元建议本地蔬菜以减少碳足迹，故判断为错误。单元注重“可持续性”的讨论。）8.Theconclusionofthepassageisoverlyoptimisticaboutthefutureofvegetarianism.（参考答案：False）（解析：文章客观展望饮食趋势，未过度乐观，故判断为错误。单元强调“理性分析”的基调。）9.Theauthorcriticizesvegetariansforbeingjudgmentaltowardmeat-eaters.（参考答案：False）（解析：单元倡导包容性饮食观，未批评素食者，故判断为错误。单元注重“尊重差异”的讨论。）10.Thepassagementionsthatsupplementsareunnecessaryforvegetariansiftheyeatavarietyofvegetables.（参考答案：False）（解析：单元建议素食者可能需补充营养素，故判断为错误。单元强调“科学补充”的重要性。）四、简答题（总共8题，每题2分，共16分）1.Whatarethreekeyargumentspresentedinthepassageinfavorofvegetarianism?（参考答案：①Improvedmentalhealth;②Environmentalsustainability;③Potentialweightloss.）（解析：单元明确列举素食的三大优势，考生需准确列举至少三点，每点需简述理由。）2.Howdoestheauthoraddresstheconcernthatvegetariandietslackprotein?（参考答案：Suggestsincorporatingplant-basedproteinsourceslikebeans,lentils,andtofu,andrecommendssupplementsifneeded.）（解析：单元提出解决蛋白质问题的具体方法，考生需准确描述至少两种方案。）3.Whatisthedifferencebetweenvegetarianismandflexitarianismaccordingtothetext?（参考答案：Vegetarianismavoidsallmeat,whileflexitarianismincludesoccasionalmeatconsumption.）（解析：单元对比两种饮食方式的核心差异，考生需准确描述。）4.Whydoesthepassagementionthecarbonfootprintofmeatproduction?（参考答案：Tohighlighttheenvironmentalimpactofmeatconsumptionandpromotesustainablealternatives.）（解析：单元通过肉食碳排放论证环保饮食的重要性，考生需解释其目的。）5.Whatadvicedoestheauthorgivetopeopleconsideringswitchingtoavegetariandiet?（参考答案：Plancarefullytoensurenutritionalbalance,startgradually,andconsultadoctorifneeded.）（解析：单元提供饮食转换建议，考生需列举至少三点科学方法。）6.Howdoesthephrase"It'snotaboutperfection,butprogress"contributetotheoverallmessageofthepassage?（参考答案：Itencouragesreaderstomakegradualdietarychangeswithoutfeelingpressuredtobeperfect.）（解析：单元通过该句强调包容性饮食观，考生需解释其作用。）7.Whatevidencedoesthepassageusetosupportitsargumentaboutthechallengesofvegetarianism?（参考答案：Statisticsonnutritionaldeficiencies,personalanecdotesofdigestiveissues,andexpertopinions.）（解析：单元用多种证据论证素食风险，考生需列举至少两种。）8.Howdoestheauthorbalancetheprosandconsofvegetarianismintheconclusion?（参考答案：Byacknowledgingbothbenefitsandrisks,andemphasizingpersonalchoiceoverstrictdietaryrules.）（解析：单元结论强调权衡与包容，考生需准确描述平衡方法。）五、应用题（总共8题，每题4分，共24分）1.CaseStudy:A25-year-oldofficeworkerwantstobecomeavegetarianbutisworriedaboutmissingprotein.Howwouldyouadvisethembasedonthepassage?（参考答案：Suggesttheystartwithplant-basedprotein(lentils,tofu),takeironsupplements,andconsultanutritionisttoplanmeals.）（解析：单元强调科学规划，考生需结合营养建议和单元“逐步调整”的观点给出具体方案。）2.Scenario:Ahighschoolstudentreadsthepassageanddecidestobecomeaflexitarian.Whatstepsshouldtheytaketoensureabalanceddiet?（参考答案：Trackdailyproteinintake,includediversevegetables,andlimitmeatportionsto1-2timesaweek.）（解析：单元提倡“flexible”饮食，考生需描述具体平衡方法，结合单元“多样化”和“适量”原则。）3.Problem:Afamilynoticestheirchild'sdigestionimprovesafterreducingmeatconsumption.Howcouldthepassageexplainthis?（参考答案：Lessfatandfiberinvegetariandietscaneasedigestion;thechildmayhavebeensensitivetomeat.）（解析：单元讨论消化问题，考生需结合营养学知识解释现象，体现单元“个体差异”观点。）4.Analysis:Afriendtellsyoutheyfeelhealthieronavegetariandietbutlackenergy.Whatadvicefromthepassagecouldhelpthem?（参考答案：CheckironandB12levels,tryenergy-richfoodslikequinoa,andconsidersupplements.）（解析：单元强调营养补充，考生需结合“科学检测”和“食物选择”建议给出解决方案。）5.Debate:Writeashortargument(50words)supportingvegetarianismbasedonthepassage.（参考答案：Vegetarianismreducesenvironmentalharmbycuttingcarbonemissions,improvesmentalhealth,andpromotesethicaleating.It'sasustainablechoiceforahealthierplanetandpeople.）（解析：单元强调环保与健康，考生需结合单元论点撰写简短支持论据。）6.Proposal:Suggestthreepracticalchangesaschoolcouldmaketoencouragehealthiereatinghabitsbasedonthepassage.（参考答案：①Offerplant-basedlunchoptions;②Educate