2026年贵州省人教版初中英语八年级下册第3单元同步练习题

2026年贵州省人教版初中英语八年级下册第3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.AccordingtothepassageinUnit3,whatisthemainreasonwhymanystudentschoosetostudysciencesubjects?A.Becausesciencesubjectsareeasierthanothersubjects.B.Becausesciencesubjectscanhelpthemunderstandtheworldbetter.C.Becausesciencesubjectsaremoreinterestingthanartsubjects.D.Becausesciencesubjectshavemorejobopportunitiesinthefuture.解析：本题考查学生对单元主题“Whydopeoplechoosecertainsubjects?”的理解。正确答案为B，因为单元文章强调科学学科能帮助学生更好地理解世界，这与单元核心内容一致。选项A、C、D虽然可能是部分学生的真实想法，但并非文章主旨。解析需结合单元课文具体段落，如“Sciencehelpsusdiscoverhowthingsworkandwhytheyhappen,”等表述。2.Whatdoestheunderlinedword"passion"meaninthesentence"Shehasapassionforlearningnewthings"?A.HateB.InterestC.FearD.Surprise解析：本题考查单元词汇“passion”的词义辨析。正确答案为B，单元词汇表中明确解释“passion”意为“强烈的兴趣或热爱”。选项A、C、D与词义无关，需结合单元词汇学习笔记进行判断。解析需引用单元词汇表中的英文释义和中文翻译。3.Accordingtotheadviceinthepassage,whichofthefollowingisNOTagoodwaytoimproveyourstudyskills?A.Makeastudyscheduleandfollowiteveryday.B.Listentomusicwhiledoinghomework.C.Reviewyournotesregularly.D.Askteachersorclassmatesforhelpwhenyouhavequestions.解析：本题考查单元阅读文章“TipsforEffectiveStudy”中的实用建议。正确答案为B，单元文章明确指出“Listeningtomusiccandistractyoufromstudying,”而其他选项均为有效学习方法。解析需结合文章具体建议段落，如“Makeastudyplanandsticktoit”等。4.Whatisthebesttitleforthepassage"TheFutureofScience"?A.FamousScientistsinHistoryB.WhyScienceisImportantTodayC.HowtoChooseaScienceCareerD.TheHistoryofSpaceExploration解析：本题考查单元写作任务“Writeashortpassageaboutasubjectyoulike”的主题把握。正确答案为B，单元写作指导强调“Discusswhysciencesubjectsarevaluableinmodernsociety.”选项A、C、D偏离单元写作主题，需结合单元写作要求进行判断。解析需引用单元写作任务书的具体说明。5.Accordingtothepassage,whatisthebiggestchallengeforstudentswhowanttostudysciencesubjects?A.Theyneedtomemorizealotofformulas.B.Theydonothaveenoughtimetodoexperiments.C.Theyfindsciencesubjectstoodifficult.D.Theydonothaveaccesstoscienceequipment.解析：本题考查单元阅读文章“ChallengesinScienceEducation”中的细节信息。正确答案为C，单元文章提到“Manystudentsthinkscienceishardandgiveupeasily.”选项A、B、D虽然可能是部分挑战，但并非文章强调的重点。解析需结合文章具体段落，如“Sciencerequiresdeepthinkingandproblem-solvingskills”等表述。6.Whatdoesthephrase"setgoals"meaninthecontextofthepassage"HowtoStudyEffectively"?A.Togiveupstudying.B.Tomakeplansforyourstudy.C.Toaskteachersforhelp.D.Tolistentomusicwhilestudying.解析：本题考查单元词汇短语“setgoals”的语境理解。正确答案为B，单元文章解释“Setgoalstoimproveyourgradesandskills.”意为“设定目标以提升成绩和技能”。选项A、C、D与语境无关，需结合单元阅读文章进行判断。解析需引用文章中关于“goal-setting”的具体建议段落。7.Accordingtothepassage,whydosomestudentschoosetostudyartsubjects?A.Becauseartsubjectsareeasierthansciencesubjects.B.Becauseartsubjectscanhelpthemexpressthemselves.C.Becauseartsubjectsaremoreexpensivetostudy.D.Becauseartsubjectshavefewerjobopportunities.解析：本题考查单元对比阅读“Sciencevs.Art”中的观点呈现。正确答案为B，单元文章提到“Arthelpsstudentsexpresstheircreativityandemotions.”选项A、C、D与文章观点相反，需结合单元阅读文章进行判断。解析需引用文章中关于“artisticexpression”的具体段落。8.Whatisthemainideaofthepassage"TheImportanceofScienceinDailyLife"?A.Sciencesubjectsarethemostdifficulttostudy.B.Sciencehelpsussolveeverydayproblems.C.Sciencesubjectsaremoreinterestingthanartsubjects.D.Scienceisonlyimportantforscientists.解析：本题考查单元阅读文章“ScienceinDailyLife”的主旨概括。正确答案为B，单元文章强调“Sciencehelpsusunderstandandimproveourlives,suchasmedicine,technology,andenvironment.”选项A、C、D偏离文章主旨，需结合单元阅读文章进行判断。解析需引用文章开头和结尾段落的总结性表述。9.Accordingtothepassage,whatisthebestwaytoremembernewvocabulary?A.Writethewordsinanotebook.B.Usethewordsinsentences.C.Listentomusicwiththewords.D.Memorizethewordswithoutunderstandingtheirmeaning.解析：本题考查单元语法“UsingNewWords”中的学习方法建议。正确答案为B，单元文章提到“Practiceusingnewwordsinsentencestorememberthembetter.”选项A、C、D虽然可能是部分方法，但并非文章强调的最佳方式。解析需结合单元语法讲解中的具体建议段落。10.Whatisthepurposeofthepassage"WhyDoPeopleChooseCertainSubjects"?A.Totellstudentswhichsubjectstochoose.B.Toexplainwhysomesubjectsaremorepopular.C.Toaskstudentstostudyharder.D.Tocomparescienceandartsubjects.解析：本题考查单元阅读文章“SubjectChoice”的写作目的。正确答案为B，单元文章分析“Peoplechoosesubjectsbasedontheirinterests,futurecareers,andpersonalstrengths.”选项A、C、D偏离文章目的，需结合单元阅读文章进行判断。解析需引用文章引言部分的具体表述。二、填空题（总共10题，每题2分，共20分）1.Thepassagesaysthatmanystudentschoosesciencesubjectsbecausetheywantto______theworldaroundthem.解析：正确答案为“understand”，单元文章提到“Sciencehelpsusunderstandhowthingswork.”需结合单元阅读文章进行填空。2.Accordingtothepassage,agoodstudyhabitisto______yournoteseveryday.解析：正确答案为“review”，单元文章建议“Reviewyournotesregularlytoremembermore.”需结合单元阅读文章进行填空。3.Theunderlinedword"passion"inthesentence"Shehasapassionforlearning"means______.解析：正确答案为“stronginterest”，单元词汇表中解释“passion”意为“强烈的兴趣”。需结合单元词汇学习笔记进行填空。4.Thepassagesuggeststhatstudentsshould______toteachersorclassmateswhentheyhaveproblems.解析：正确答案为“askforhelp”，单元文章提到“Donotbeafraidtoaskforhelp.”需结合单元阅读文章进行填空。5.Thephrase"setgoals"meansto______inyourstudy.解析：正确答案为“makeplans”，单元文章解释“Setgoalstoimproveyourgradesandskills.”意为“设定目标以提升成绩和技能”。需结合单元阅读文章进行填空。6.Accordingtothepassage,somestudentschooseartsubjectsbecausetheywantto______.解析：正确答案为“expressthemselves”，单元文章提到“Arthelpsstudentsexpresstheircreativityandemotions.”需结合单元阅读文章进行填空。7.Thepassagesaysthatsciencesubjectscanhelpussolve______problemsindailylife.解析：正确答案为“everyday”，单元文章提到“Sciencehelpsussolveeverydayproblems,suchasmedicine,technology,andenvironment.”需结合单元阅读文章进行填空。8.Theunderlinedword"distract"inthesentence"Listeningtomusiccandistractyoufromstudying"means______.解析：正确答案为“takeawayattention”，单元词汇表中解释“distract”意为“分散注意力”。需结合单元词汇学习笔记进行填空。9.Thepassagesuggeststhatstudentsshould______newwordsinsentencestorememberthembetter.解析：正确答案为“use”，单元文章提到“Practiceusingnewwordsinsentencestorememberthembetter.”需结合单元阅读文章进行填空。10.Thepurposeofthepassage"WhyDoPeopleChooseCertainSubjects?"isto______.解析：正确答案为“explainreasons”，单元文章分析“Peoplechoosesubjectsbasedontheirinterests,futurecareers,andpersonalstrengths.”需结合单元阅读文章进行填空。三、判断题（总共10题，每题2分，共20分）1.Accordingtothepassage,allstudentsfindsciencesubjectseasytostudy.解析：错误。单元文章提到“Manystudentsthinkscienceishardandgiveupeasily.”故该说法与文章内容不符。2.Theunderlinedword"passion"inthesentence"Shehasapassionforlearning"means"hate."解析：错误。单元词汇表中解释“passion”意为“强烈的兴趣或热爱”，而非“hate”。3.Thepassagesuggeststhatlisteningtomusiccanhelpstudentsstudybetter.解析：错误。单元文章明确指出“Listeningtomusiccandistractyoufromstudying.”故该说法与文章内容相反。4.Themainideaofthepassage"TheFutureofScience"istodiscussfamousscientistsinhistory.解析：错误。单元文章强调“Sciencesubjectsareimportantforfuturedevelopment.”而非“famousscientists.”5.Accordingtothepassage,thebiggestchallengeforstudentswhowanttostudysciencesubjectsisnothavingenoughtimetodoexperiments.解析：错误。单元文章提到“Manystudentsthinkscienceishardandgiveupeasily.”而非“lackoftimeforexperiments.”6.Thephrase"setgoals"meanstogiveupstudying.解析：错误。单元文章解释“Setgoalstoimproveyourgradesandskills.”意为“设定目标以提升成绩和技能”，而非“giveupstudying.”7.Thepassagesaysthatartsubjectsaremoreexpensivetostudythansciencesubjects.解析：错误。单元文章未提及“artsubjectsaremoreexpensive.”该说法无依据。8.Thepurposeofthepassage"WhyDoPeopleChooseCertainSubjects?"istotellstudentswhichsubjectstochoose.解析：错误。单元文章分析“Peoplechoosesubjectsbasedontheirinterests,futurecareers,andpersonalstrengths.”而非“tellstudentstochoosesubjects.”9.Theunderlinedword"distract"inthesentence"Listeningtomusiccandistractyoufromstudying"means"takeawayattention."解析：正确。单元词汇表中解释“distract”意为“分散注意力”。10.Thepassagesuggeststhatstudentsshouldmemorizenewwordswithoutunderstandingtheirmeaning.解析：错误。单元文章提到“Practiceusingnewwordsinsentencestorememberthembetter.”而非“memorizewithoutunderstanding.”四、简答题（总共8题，每题2分，共16分）1.Accordingtothepassage,whydosomestudentschoosetostudysciencesubjects?参考答案：Somestudentschoosesciencesubjectsbecausetheywanttounderstandtheworldbetter,helpsolveproblems,orhavefuturecareeropportunitiesinsciencefields.解析：本题考查单元主题“Whydopeoplechoosecertainsubjects?”的核心观点。参考答案需结合单元阅读文章和写作任务的具体内容，如“Sciencehelpsusdiscoverhowthingswork,”“Sciencesubjectscanleadtojobsinmedicine,engineering,etc.”等表述。解析需分点阐述，每点对应文章中的具体段落或句子。2.Whatisthemainideaofthepassage"TheImportanceofScienceinDailyLife"?参考答案：Themainideaisthatsciencehelpsusimproveourdailylivesinmanyways,suchasmedicine,technology,andenvironmentalprotection.解析：本题考查单元阅读文章“ScienceinDailyLife”的主旨概括。参考答案需结合文章开头和结尾段落的总结性表述，如“Sciencemakesourlivesbetterandsafer,”“Sciencehelpsussolveproblemsindailylife.”等。解析需分点阐述，每点对应文章中的具体段落或句子。3.Accordingtothepassage,whatisthebestwaytoremembernewvocabulary?参考答案：Thebestwayistousethewordsinsentencesbecauseithelpsyourememberthembetter.解析：本题考查单元语法“UsingNewWords”中的学习方法建议。参考答案需结合单元文章的具体建议，如“Practiceusingnewwordsinsentencestorememberthembetter.”解析需分点阐述，每点对应文章中的具体段落或句子。4.Whatdoesthephrase"setgoals"meaninthecontextofthepassage"HowtoStudyEffectively"?参考答案：Setgoalsmeanstomakeplansforyourstudytoimproveyourgradesandskills.解析：本题考查单元词汇短语“setgoals”的语境理解。参考答案需结合单元文章的具体解释，如“Setgoalstoimproveyourgradesandskills.”解析需分点阐述，每点对应文章中的具体段落或句子。5.Accordingtothepassage,whydosomestudentschooseartsubjects?参考答案：Somestudentschooseartsubjectsbecausetheywanttoexpresstheircreativityandemotions.解析：本题考查单元对比阅读“Sciencevs.Art”中的观点呈现。参考答案需结合单元文章的具体建议，如“Arthelpsstudentsexpresstheircreativityandemotions.”解析需分点阐述，每点对应文章中的具体段落或句子。6.Whatisthepurposeofthepassage"WhyDoPeopleChooseCertainSubjects?"参考答案：Thepurposeistoexplainwhysomesubjectsaremorepopular,suchastheirinterests,futurecareers,andpersonalstrengths.解析：本题考查单元阅读文章“SubjectChoice”的写作目的。参考答案需结合文章引言部分的具体表述，如“Peoplechoosesubjectsbasedontheirinterests,futurecareers,andpersonalstrengths.”解析需分点阐述，每点对应文章中的具体段落或句子。7.Accordingtothepassage,whatisthebiggestchallengeforstudentswhowanttostudysciencesubjects?参考答案：Thebiggestchallengeisthatmanystudentsthinkscienceishardandgiveupeasily.解析：本题考查单元阅读文章“ChallengesinScienceEducation”中的细节信息。参考答案需结合文章具体段落，如“Manystudentsthinkscienceishardandgiveupeasily.”解析需分点阐述，每点对应文章中的具体段落或句子。8.Whatisthemainadvicegiveninthepassage"HowtoStudyEffectively"?参考答案：Themainadviceistomakeastudyschedule,reviewnotesregularly,andaskteachersorclassmatesforhelpwhenneeded.解析：本题考查单元阅读文章“TipsforEffectiveStudy”中的实用建议。参考答案需结合文章的具体建议，如“Makeastudyscheduleandfollowit,”“Reviewyournotesregularly,”“Askteachersorclassmatesforhelp.”解析需分点阐述，每点对应文章中的具体段落或句子。五、应用题（总共8题，每题4分，共24分）1.Readthefollowingpassageandanswerthequestion:"Manystudentsfindsciencesubjectsdifficultbecausetheyrequirealotofthinkingandproblem-solving.However,sciencecanbeveryinterestingifyoutrytounderstandit.Forexample,physicshelpsusunderstandhowthingsmove,andbiologyhelpsusunderstandlivingthings.Ifyouhaveapassionforscience,youwillenjoylearningmore."Question:Whatisthemainideaofthepassage?参考答案：Themainideaisthatsciencesubjectsmaybedifficult,buttheycanbeinterestingifstudentstrytounderstandthem.解析：本题考查单元阅读文章“WhyScienceisImportantToday”的主旨概括。参考答案需结合文章开头和结尾段落的总结性表述，如“Sciencecanbeveryinterestingifyoutrytounderstandit,”“Ifyouhaveapassionforscience,youwillenjoylearningmore.”解析需分点阐述，每点对应文章中的具体段落或句子。2.Writeashortpassage(50words)aboutwhyyouchoosetostudyEnglish.参考答案：IchoosetostudyEnglishbecauseithelpsmecommunicatewithpeoplefromdifferentcountries.Englishisimportantformyfuturecareerbecauseitistheworld'smostwidelyspokenlanguage.IalsoenjoyreadingEnglishbooksandwatchingEnglishmovies.StudyingEnglishmakesmemoreconfidentandopensupnewopportunities.解析：本题考查单元写作任务“Writeashortpassageaboutasubjectyoulike”的实践应用。参考答案需结合个人兴趣和未来规划，如“Englishhelpsmecommunicatewithpeoplefromdifferentcountries,”“Englishisimportantformyfuturecareer.”解析需分点阐述，每点对应写作任务的具体要求。3.Readthefollowingdialogueandanswerthequestion:StudentA:Ithinksciencesubjectsaretoohard.Ialwaysgetlowgradesinphysics.StudentB:Maybeyoushouldaskyourteacherforhelp.Also,makeastudyscheduleandreviewyournoteseveryday.StudentA:That'sagoodidea.Iwilltryit.Question:WhatadvicedoesStudentBgivetoStudentA?参考答案：StudentBsuggestsaskingtheteacherforhelpandmakingastudyscheduletoreviewnoteseveryday.解析：本题考查单元阅读文章“TipsforEffectiveStudy”中的实用建议。参考答案需结合对话中的具体建议，如“askyourteacherforhelp,”“makeastudyschedule,”“reviewyournoteseveryday.”解析需分点阐述，每点对应对话中的具体表述。4.Readthefollowingpassageandanswerthequestion:"Artsubjectsareimportantbecausetheyhelpstudentsexpressthemselvescreatively.Drawing,music,anddramaareexamplesofartsubjects.Manystudentsfindartsubjectsrelaxingandfun.Artcanalsohelpstudentsdeveloptheirimaginationandcreativity,whichareusefulskillsinmanyareasoflife."Question:Whatisthemainideaofthepassage?参考答案：Themainideaisthatartsubjectshelpstudentsexpressthemselvescreativelyanddevelopusefulskills.解析：本题考查单元对比阅读“Sciencevs.Art”中的观点呈现。参考答案需结合文章开头和结尾段落的总结性表述，如“Artsubjectsareimportantbecausetheyhelpstudentsexpressthemselvescreatively,”“Artcanalsohelpstudentsdeveloptheirimaginationandcreativity.”解析需分点阐述，每点对应文章中的具体段落或句子。5.Writeashortpassage(50words)abouthowyouusenewvocabularyinyourstudy.参考答案：Iusenewvocabularyinsentencestorememberthembetter.Forexample,Iwritesentenceswithnewwordsfrommynotebookandreviewthemregularly.Ialsotrytousenewwordsinconversationswithmyclassmates.Thishelpsmerememberthewordsmoreeffectively.解析：本题考查单元语法“UsingNewWords”中的学习方法建议。参考答案需结合个人学习经验，如“writesentenceswithnewwords,”“reviewthemregularly,”“usenewwordsinconversations.”解析需分点阐述，每点对应写作任务的具体要求。6.Readthefollowingpassageandanswerthequestion:"Thefutureofscienceisveryexciting.Manynewdiscoveriesarebeingmadeeveryday.Forexample,scientistsareworkingonnewmedicinestocurediseases.Theyarealsodevelopingnewtechnologiestomakeourliveseasier.Sciencewillplayanimportantroleinsolvingfutureproblems,suchasclimatechangeandspaceexploration."Question:Whatisthebiggestchallengeforscientistsinthefuture?参考答案：Thebiggestchallengeissolvingfutureproblems,suchasclimatechangeandspaceexploration.解析：本题考查单元阅读文章“TheFutureofScience”中的细节信息。参考答案需结合文章具体段落，如“Sciencewillplayanimportantroleinsolvingfutureproblems,suchasclimatechangeandspaceexploration.”解析需分点阐述，每点对应文章中的具体段落或句子。7.Writeashortpassage(50words)aboutwhyyouthinksciencesubjectsareimportanttoday.参考答案：Sciencesubjectsareimportanttodaybecausetheyhelpusunderstandtheworldandsolveproblems.Forexample,sciencehelpsusdevelopnewmedicines,technologies,andenvironmentalsolutions.Studyingsciencealsopreparesusforfuturecareersinimportantfields.解析：本题考查单元主题“Whydopeoplechoosecertainsubjects?”的核心观点。参考答案需结合个人兴趣和未来规划，如“Sciencehelpsusunderstandtheworld,”“Sciencesubjectscanleadtojobsinmedicine,engineering,etc.”解析需分点阐述，每点对应写作任务的具体要求。8.Readthefollowingpassageandanswerthequestion:"Manystudentschoosetostudyartsubjectsbecausetheywanttoexpresstheircreativity.Arthelpsstudentsrelaxandenjoytheirstudies.Forexample,drawingcanhelpyoufocusonyourwork,andmusiccanhelpyoufeelcalm.Artisnotjustaboutbeingcreative;itisalsoaboutlearningnewskillsandimprovingyourmind."Question:Whatisthemainideaofthepassage?参考答案：Themainideaisthatartsubjectshelpstudentsexpresstheircreativityandimprovetheirminds.解析：本题考查单元对比阅读“Sciencevs.Art”中的观点呈现。参考答案需结合文章开头和结尾段落的总结性表述，如“Manystudentschoosetostudyartsubjectsbecausetheywanttoexpresstheircreativity,”“Artisnotjustaboutbeingcreative;itisalsoaboutlearningnewskillsandimprovingyourmind.”解析需分点阐述，每点对应文章中的具体段落或句子。【标准答案及解析】一、单项选择题1.B2.B3.B4.B5.C6.B7.B8.B9.B10.B二、填空题1.understand2.review3.stronginterest4.askforhelp5.makeplans6.expressthemselves7.everyday8.takeawayattention9.use10.explainreasons三、判断题1.×2.×3.×4.×5.×6.×7.×8.×9.√10.×四、简答题1.Somestudentschoosesciencesubjectsbecausetheywanttounderstandtheworldbetter,helpsolveproblems,orhavefuturecareeropportunitiesinsciencefields.解析：参考单元阅读文章“WhyScienceisImportantToday”和写作任务“Writeashortpassageaboutasubjectyoulike”的具体内容。2.Themainideaisthatsciencehelpsusimproveourdailylivesinmanyways,suchasmedicine,technology,andenvironmentalprotection.解析：参考单元阅读文章“ScienceinDailyLife”的主旨概括。3.Thebestwayistousethewordsinsentencesbecauseithelpsyourememberthembetter.解析：参考单元语法“UsingNewWords”中的学习方法建议。4.Setgoalsmeanstomakeplansforyourstudytoimproveyourgradesandskills.解析：参考单元文章“HowtoStudyEffectively”的具体解释。5.Somestudentschooseartsubjectsbecausetheywanttoexpresstheircreativityandemotions.解析：参考单元对比阅读“Sciencevs.Art”中的观点呈现。6.Thepurposeistoexplainwhysomesubjectsaremorepopular,suchastheirinterests,futurecareers,andpersonalstrengths.解析：参考单元阅读文章“SubjectChoice”的写作目的。7.Thebiggestchallengeisthatmanystudentsthinkscienceishardandgive