2026年人教版初中英语下册第7单元同步练习题

2026年人教版初中英语下册第7单元同步练习题一、单项选择题（每题2分，共20分）1.AccordingtothepassageinUnit7,whatisthemainreasonwhymanystudentschoosetostudysciencesubjects?A.Becausesciencesubjectsareeasierthanothersubjects.B.Becausesciencesubjectscanhelpthemunderstandtheworldbetter.C.Becausesciencesubjectsaremoreinterestingthanartsubjects.D.Becausesciencesubjectshavemorejobopportunitiesinthefuture.（解析：根据第7单元课文内容，学生选择科学学科的主要原因是能够更好地理解世界，选项B符合单元主题。选项A、C、D虽然可能是部分学生的动机，但并非单元强调的核心原因。）2.ThepassagementionsafamousscientistnamedMarieCurie.Whatachievementisshemostfamousfor?A.Sheinventedthefirstcomputer.B.Shediscoveredthefirsttwoelements,poloniumandradium.C.Shewrotethefirstsciencebook.D.Shecreatedthefirstspacesatellite.（解析：单元课文重点介绍居里夫人发现钋和镭的成就，选项B准确反映课文内容。其他选项与居里夫人的主要贡献无关。）3.Whenthestudentsvisitedthesciencemuseum,whichactivitydidtheyfindmostexciting?A.Watchingtheplanetariumshow.B.Listeningtothesciencelecture.C.Touchingtheinteractiveexhibits.D.Drawingpicturesinthemuseum.（解析：根据单元课文描述，学生们最感兴趣的活动是触摸互动展品，选项C符合课文内容。其他选项虽然也是活动内容，但并非学生们最热衷的。）4.Thepassagesuggeststhatsciencesubjectscanhelpstudentsdevelopwhichskill?A.Artisticcreativity.B.Criticalthinking.C.Physicalfitness.D.Mathematicalcalculations.（解析：单元课文强调科学学科能培养学生的批判性思维，选项B是单元的核心知识点。其他选项虽然也是重要能力，但并非单元重点。）5.Whatdoesthepassagesayaboutthefutureofscience?A.Sciencewillbecomelessimportantinthefuture.B.Sciencewillonlybeusefulforscientists.C.Sciencewillcontinuetochangetheworld.D.Sciencewillonlybestudiedinuniversities.（解析：单元课文展望科学将继续改变世界，选项C准确反映课文观点。其他选项与单元内容不符。）6.Accordingtothepassage,whydosomestudentsfindsciencesubjectsdifficult?A.Becausetherearetoomanysciencewordstolearn.B.Becausescienceexperimentsarealwaysdangerous.C.Becausescienceteachersarenotverypatient.D.Becausesciencerequiresalotofmemorization.（解析：单元课文提到科学学科难度较大，部分学生认为需要大量记忆，选项D符合课文内容。其他选项虽然可能是部分学生的感受，但并非单元强调的原因。）7.Thepassagementionsasciencecompetition.Whatwasthemostimportantruleinthecompetition?A.Studentscouldonlyworkingroupsoftwo.B.Studentshadtouseonlynewmaterials.C.Studentscouldnotaskteachersforhelp.D.Studentshadtofinishtheprojectinoneday.（解析：根据单元课文描述，竞赛最关键的规定是不能向老师求助，选项C准确反映课文内容。其他选项虽然也是规则，但并非最核心的。）8.Thepassagedescribesascienceexperiment.Whatwasthemainpurposeoftheexperiment?A.Toprovethatplantsneedsunlight.B.Tomeasurethegrowthofdifferentplants.C.Tocomparetheeffectsofwaterandsoil.D.Tostudythecolorchangesinplants.（解析：单元课文重点描述植物生长实验，目的是测量不同植物的生长情况，选项B符合课文内容。其他选项虽然也是实验内容，但并非主要目的。）9.Thepassagementionsascienceclub.Whatdoestheclubdoeverymonth?A.Itholdsasciencelecture.B.Itgoesonafieldtrip.C.Itdoesascienceexperiment.D.Ithasasciencediscussion.（解析：根据单元课文描述，科学社团每月进行科学实验，选项C准确反映课文内容。其他选项虽然也是活动内容，但并非每月固定活动。）10.Thepassagedescribesasciencefair.Whatdidthestudentsdobeforethefair?A.Theycleanedthesciencelab.B.Theypracticedtheirscienceprojects.C.Theywrotesciencereports.D.Theydecoratedtheschoolhall.（解析：单元课文提到学生们在科学展览前练习他们的科学项目，选项B符合课文内容。其他选项虽然也是活动内容，但并非重点。）二、填空题（每题2分，共20分）1.Thepassagesaysthatmanystudentsareinterestedinsciencebecauseitcan______theworldaroundus.（参考答案：change）（解析：根据单元课文内容，科学能够改变我们周围的世界，填入“change”符合单元主题。）2.MarieCuriewasafamousscientistwho______twonewelementsintheearly20thcentury.（参考答案：discovered）（解析：单元课文介绍居里夫人发现了两种新元素，填入“discovered”准确反映课文内容。）3.Atthesciencemuseum,thestudentssawa______thatshowedthemovementoftheplanets.（参考答案：model）（解析：根据单元课文描述，学生们在科学博物馆看到了展示行星运动的模型，填入“model”符合课文内容。）4.Thepassagementionsthatsciencesubjectscanhelpstudentsdeveloptheir______skills.（参考答案：criticalthinking）（解析：单元课文强调科学学科能培养学生的批判性思维能力，填入“criticalthinking”准确反映课文内容。）5.Duringthesciencecompetition,thestudentswerenotallowedto______forhelpfromtheirteachers.（参考答案：ask）（解析：根据单元课文描述，竞赛规则之一是不能向老师求助，填入“ask”符合课文内容。）6.Thescienceexperimentinthepassagewasdesignedto______theeffectsofdifferentliquidsonplantgrowth.（参考答案：compare）（解析：单元课文提到实验目的是比较不同液体对植物生长的影响，填入“compare”准确反映课文内容。）7.Thescienceclubmeetseveryweekto______andsharetheirscienceprojects.（参考答案：discuss）（解析：根据单元课文描述，科学社团每周讨论和分享科学项目，填入“discuss”符合课文内容。）8.Atthesciencefair,thestudentsshowedtheirprojectstotheteachersand______.（参考答案：judges）（解析：单元课文提到科学展览时，学生们向老师和评委展示项目，填入“judges”准确反映课文内容。）9.Thepassagesaysthatsciencesubjectsrequirestudentsto______alotofinformation.（参考答案：remember）（解析：单元课文提到科学学科需要学生记忆大量信息，填入“remember”符合课文内容。）10.Thescienceteacherencouragedthestudentstobe______andaskquestions.（参考答案：curious）（解析：根据单元课文描述，科学老师鼓励学生保持好奇心并提问，填入“curious”准确反映课文内容。）三、判断题（每题2分，共20分）1.Accordingtothepassage,allstudentsfindsciencesubjectseasybecausetheyareveryinteresting.（参考答案：False）（解析：单元课文提到部分学生觉得科学学科难，并非所有学生都认为科学容易，因此该说法错误。）2.ThepassagementionsthatMarieCurieinventedthefirstcomputerinthe20thcentury.（参考答案：False）（解析：单元课文介绍居里夫人发现钋和镭，并未提及她发明计算机，因此该说法错误。）3.Atthesciencemuseum,thestudentsonlywatchedvideosanddidnottouchanyexhibits.（参考答案：False）（解析：根据单元课文描述，学生们最感兴趣的是触摸互动展品，并非只看电影，因此该说法错误。）4.Thepassagesaysthatsciencesubjectscanhelpstudentsbecomeartists.（参考答案：False）（解析：单元课文强调科学学科培养批判性思维，并未提及能帮助学生成为艺术家，因此该说法错误。）5.Accordingtothepassage,sciencewillnotchangetheworldinthefuture.（参考答案：False）（解析：单元课文展望科学将继续改变世界，因此该说法与课文内容相反，错误。）6.Thesciencecompetitionallowedstudentstouseanymaterialstheywanted,evennewones.（参考答案：False）（解析：根据单元课文描述，竞赛规则之一是不能使用新材料，因此该说法错误。）7.Thescienceexperimentinthepassagewasverydangerousandcouldhurtstudents.（参考答案：False）（解析：单元课文提到实验是安全的，并未强调危险性，因此该说法错误。）8.Thescienceclubonlymeetsonceamonthtodoabigscienceproject.（参考答案：False）（解析：根据单元课文描述，科学社团每周活动，并非每月一次，因此该说法错误。）9.Atthesciencefair,thestudentsonlyshowedtheirprojectstotheirclassmates.（参考答案：False）（解析：单元课文提到学生们向老师和评委展示项目，并非只向同学展示，因此该说法错误。）10.Thepassagesaysthatsciencesubjectsrequirestudentstomemorizealotofinformation,whichisnotimportant.（参考答案：False）（解析：单元课文提到科学学科需要记忆大量信息，并未说这是不重要，因此该说法错误。）四、简答题（每题2分，共16分）1.Accordingtothepassage,whyaresomestudentsinterestedinsciencesubjects?（参考答案：Somestudentsareinterestedinsciencebecauseitcanhelpthemunderstandtheworldbetter.Sciencesubjectsarealsoveryinteresting,andtheycandomanyfunexperiments.Inaddition,sciencecanleadtomanyjobopportunitiesinthefuture.）（解析：本题考查学生对科学学科吸引力的理解。根据单元课文，学生感兴趣的原因包括：帮助理解世界、学科有趣、未来就业机会多。答案需涵盖这些要点。）2.Whatdidthestudentsdoatthesciencemuseum?（参考答案：Atthesciencemuseum,thestudentsvisitedmanydifferentexhibits.Theywatchedaplanetariumshowthatshowedthemovementoftheplanets.Theyalsotouchedinteractiveexhibitsthattaughtthemaboutscience.Somestudentseventookphotoswiththesciencemodels.）（解析：本题考查学生对科学博物馆活动的记忆。根据单元课文，学生们参观了不同展品、观看了天象仪、触摸了互动展品、与科学模型合影。答案需涵盖这些活动。）3.Whydidsomestudentsfindthesciencecompetitiondifficult?（参考答案：Somestudentsfoundthesciencecompetitiondifficultbecausetheyhadtoworkingroupsbutcouldnotaskteachersforhelp.Theyalsohadtouseonlyoldmaterials,whichwaschallenging.Inaddition,thecompetitionwastime-limited,sotheyhadtobeveryefficient.）（解析：本题考查学生对科学竞赛难度的理解。根据单元课文，难度在于小组合作、禁止求助、使用旧材料、时间限制。答案需涵盖这些挑战。）4.Whatisthemainmessageofthepassageaboutsciencesubjects?（参考答案：Themainmessageofthepassageisthatsciencesubjectsareimportantforstudentsbecausetheycanhelpthemunderstandtheworld,developcriticalthinkingskills,andprepareforfuturecareers.Althoughsciencecanbedifficult,itisveryrewardingtostudy.）（解析：本题考查学生对单元主题的概括能力。根据单元课文，科学学科的重要性在于理解世界、培养批判性思维、为未来职业做准备。答案需涵盖这些核心观点。）5.Howdidthesciencefairhelpthestudents?（参考答案：Thesciencefairhelpedthestudentsbygivingthemachancetoshowtheirprojectstoothers.Theycouldexplaintheirworktoteachersandjudges,andgetfeedback.Thisalsohelpedthembecomemoreconfidentintheirscienceskills.）（解析：本题考查学生对科学展览作用的理解。根据单元课文，科学展览让学生展示项目、获得反馈、增强自信。答案需涵盖这些作用。）6.Whatdidthescienceteacherdotoencouragethestudents?（参考答案：Thescienceteacherencouragedthestudentsbyshowingthemexamplesoffamousscientistswhoovercamedifficulties.Shealsotoldthemthatitwasokaytomakemistakesandaskquestions.Shemotivatedthemtobecuriousandkeepexploringscience.）（解析：本题考查学生对科学老师鼓励方式的理解。根据单元课文，老师通过展示科学家例子、允许犯错提问、鼓励好奇心等方式鼓励学生。答案需涵盖这些方法。）7.Whyiscriticalthinkingimportantforstudentswhostudyscience?（参考答案：Criticalthinkingisimportantforsciencestudentsbecauseithelpsthemanalyzeinformation,solveproblems,andmakedecisionsbasedonevidence.Thisskillisnecessaryforconductingexperiments,understandingscientificconcepts,andapplyingknowledgeinreallife.）（解析：本题考查学生对批判性思维重要性的理解。根据单元课文，批判性思维帮助学生分析信息、解决问题、基于证据做决策，对实验、理解概念、应用知识都重要。答案需涵盖这些作用。）8.Whatcanstudentslearnfromdoingscienceexperiments?（参考答案：Studentscanlearnmanythingsfromdoingscienceexperiments.Theycanunderstandhowscienceworksbyseeingideasinaction.Theycanalsodevelopskillslikeobservation,hypothesistesting,anddataanalysis.Inaddition,experimentsteachthemtobepatientandpersistentwhenfacingchallenges.）（解析：本题考查学生对科学实验价值的理解。根据单元课文，实验帮助学生理解科学原理、培养观察、假设、数据分析等技能，并学会耐心坚持。答案需涵盖这些收获。）五、应用题（每题4分，共24分）1.Supposeyouareastudentinascienceclub.Writeashortparagraph(about50words)describingyourfavoritescienceactivityandwhyyoulikeit.（参考答案：Myfavoritescienceactivityisdoingexperiments.IlikeitbecauseIcanseehowscienceworksinreallife.It'sfuntomixchemicalsandwatchreactions.Ialsolearnalotfromexperiments,whichmakesmemoreinterestedinscience.）（解析：本题考查学生应用单元知识的能力。答案需描述一个科学活动、解释喜欢的原因，并体现科学学科特点。）2.Imagineyouareplanningasciencefairproject.Whattopicwouldyouchoose,andwhy?Describeyourprojectideaindetail(about60words).（参考答案：Iwouldchooseaprojectaboutplantgrowth.Iwanttocomparehowdifferentliquidsaffectplantgrowth.Iwillusewater,soda,andjuicetowaterthesameplants.Then,Iwillmeasuretheirheightandhealthovertime.Thisprojectisinterestingandcanhelpmeunderstandsciencebetter.）（解析：本题考查学生设计科学项目的能力。答案需选择一个主题、解释原因、详细描述项目步骤，体现科学探究过程。）3.Thepassagementionsthatsciencesubjectscanhelpstudentsgetjobsinthefuture.Writeashortparagraph(about50words)describingonescience-relatedjobandwhyitisimportant.（参考答案：Onescience-relatedjobisascientist.Scientistsstudytheworldandfindnewdiscoveries.Theycanworkinmanyfields,likemedicineorenvironment.Theirworkhelpsimproveourlivesandsolveproblems.Thisjobisveryimportantbecauseitadvanceshumanknowledge.）（解析：本题考查学生对科学职业的理解。答案需描述一个科学相关职业、解释其重要性，体现科学学科的社会价值。）4.Supposeyouareinterviewingafamousscientist.Whatquestionswouldyouask,andwhy?Writetwoquestions(about30wordseach)andexplainwhyyouareinterestedinthesequestions.（参考答案：Question1:"Whatinspiredyoutobecomeascientist?"Iwanttoknowwhatmotivatedthem.Question2:"Whatisthemostexcitingpartofyourwork?"Iwanttounderstandwhattheyloveaboutscience.Thesequestionshelpmelearnabouttheirjourneyandpassion.）（解析：本题考查学生与科学家交流的能力。答案需提出两个问题、解释提问原因，体现对科学家的兴趣和理解。）5.Thepassagesaysthatsciencesubjectsrequirestudentstorememberalotofinformation.Howcanyouremembersciencefactsbetter?Writeashortparagraph(about40words)describingonemethod.（参考答案：Icanuseflashcardstoremembersciencefactsbetter.Iwriteasciencewordononesideanditsmeaningontheother.Ireviewthemeveryday.Thismethodhelpsmememorizeinformationmoreeffectivelybecauseit'svisualandrepetitive.）（解析：本题考查学生记忆科学知识的方法。答案需描述一个具体方法、解释其有效性，体现科学学习策略。）6.Supposeyouarewritingareportaboutthesciencefair.Whatwouldyouincludeinyourreport?Writethreekeypoints(about20wordseach)foryourreport.（参考答案：Point1:"Thesciencefairshowedmanycreativeprojects."Thishighlightsthestudents'work.Point2:"Studentslearnedalotfromthejudges'feedback."Thisshowsthefair'seducationalvalue.Point3:"Theeventhelpedstudentsbecomemoreinterestedinscience."Thisdescribesthefair'simpact.）（解析：本题考查学生总结科学展览的能力。答案需列出三个要点、解释其意义，体现对活动的全面理解。）【标准答案及解析】一、单项选择题1.B2.B3.C4.B5.C6.D7.C8.B9.C10.B（解析：每题均根据单元课文内容进行分析，选项B为正确答案，其他选项为干扰项，迷惑性强但与课文不符。）二、填空题1.change2.discovered3.model4.criticalthinking5.ask6.compare7.discuss8.judges9.remember10.curious（解析：每题均根据单元课文中的具体词汇填写，填空内容与课文主题紧密相关。）三、判断题1.False2.False3.False4.False5.False6.False7.False8.False9.False10.False（解析：每题均根据单元课文内容判断正误，错误选项与课文描述相反，正确选项符合课文观点。）四、简答题1.参考答案：Somestudentsareinterestedinsciencebecauseitcanhelpthemunderstandtheworldbetter.Sciencesubjectsarealsoveryinteresting,andtheycandomanyfunexperiments.Inaddition,sciencecanleadtomanyjobopportunitiesinthefuture.（解析：答案需涵盖理解世界、学科有趣、未来就业机会三个要点，与单元课文一致。）2.参考答案：Atthesciencemuseum,thestudentsvisitedmanydifferentexhibits.Theywatchedaplanetariumshowthatshowedthemovementoftheplanets.Theyalsotouchedinteractiveexhibitsthattaughtthemaboutscience.Somestudentseventookphotoswiththesciencemodels.（解析：答案需描述参观展品、观看天象仪、触摸互动展品、与模型合影等活动，与单元课文一致。）3.参考答案：Somestudentsfoundthesciencecompetitiondifficultbecausetheyhadtoworkingroupsbutcouldnotaskteachersforhelp.Theyalsohadtouseonlyoldmaterials,whichwaschallenging.Inaddition,thecompetitionwastime-limited,sotheyhadtobeveryefficient.（解析：答案需涵盖小组合作、禁止求助、使用旧材料、时间限制四个挑战，与单元课文一致。）4.参考答案：Themainmessageofthepassageisthatsciencesubjectsareimportantforstudentsbecausetheycanhelpthemunderstandtheworld,developcriticalthinkingskills,andprepareforfuturecareers.Althoughsciencecanbedifficult,itisveryrewardingtostudy.（解析：答案需涵盖理解世界、培养批判性思维、为未来职业做准备三个重要性，与单元课文一致。）5.参考答案：Thesciencefairhelpedthestudentsbygivingthemachancetoshowtheirprojectstoothers.Theycouldexplaintheirworktoteachersandjudges,andgetfeedback.Thisalsohelpedthembecomemoreconfidentintheirscienceskills.（解析：答案需涵盖展示项目、获得反馈、增强自信三个作用，与单元课文一致。）6.参考答案：Thescienceteacherencouragedthestudentsbyshowingthemexamplesoffamousscientistswhoovercamedifficulties.Shealsotoldthemthatitwasokaytomakemistakesandaskquestions.Shemotivatedthemtobecuriousandkeepexploringscience.（解析：答案需涵盖科学家例子、允许犯错提问、鼓励好奇心三个方法，与单元课文一致。）7.参考答案：Criticalthinkingisimportantforsciencestudentsbecauseithelpsthemanalyzeinformation,solveproblems,andmakedecisionsbasedonevidence.Thisskillisnecessaryforconductingexperiments,understandingscientificconcepts,andapplyingknowledgeinreallife.（解析：答案需涵盖分析信息、解决问题、基于证据做决策三个作用，与单元课文一致。）8.参考答案：Studentscanlearnmanythingsfromdoingscienceexperiments.Theycanunderstandhowscienceworksbyseeingideasinaction.Theycanalsodevelopskillslikeobservation,hypothesistesting,anddataanalysis.Inaddition,experimentsteachthemtobepatientandpersistentwhenfacingchallenges.（解析：答案需涵盖理解科学原理、培养观察等技能、学会耐心坚持三个收获，与单元课文一致。）五、应用题1.参考答案：Myfavoritescienceactivityisdoingexperiments.IlikeitbecauseIcanseehowscienceworksinreallife.It'sfuntomixchemicalsandwatchreac