2026年天津市苏教版九年级英语第12单元课后练习

2026年天津市苏教版九年级英语第12单元课后练习一、单项选择题（总共10题，每题2分，共20分）1.AccordingtothepassageinUnit12,whatisthemainreasonwhymanystudentschoosetostudysciencesubjects?A.Becausesciencesubjectsareeasierthanothersubjects.B.Becausesciencesubjectscanhelpthemunderstandtheworldbetter.C.Becausesciencesubjectsaremoreinterestingthanartsubjects.D.Becausesciencesubjectshavemorejobopportunitiesinthefuture.（解析：根据第12单元文章内容，作者明确指出科学学科能帮助学生更好地理解世界，选项B与文章主旨一致。其他选项如A（难度并非主要原因）、C（艺术学科兴趣不同）、D（就业机会是结果而非原因）均与文章表述不符。）2.Intheunit'sgrammarsection,whichsentencecorrectlyusesthepassivevoice?A.ThebookwasreadbyTomyesterday.B.Myhomeworkisdonebyme.C.Shewasseenbythepolicelastnight.D.Theywillbehelpedbytheteachertomorrow.（解析：选项A、C、D均正确使用被动语态，但B中"byme"多余，主动语态应为"Ididmyhomework"。若题目要求单选，需进一步明确文章中强调的被动语态应用场景。）3.Whatdoestheunderlinedword"inspire"meaninthesentence"Thescientist'sdiscoveryinspiredmanyyoungstudents"?A.Makesomeonefeelbored.B.Makesomeonefeelangry.C.Motivateorencouragesomeone.D.Makesomeonefeeltired.（解析：根据单元词汇部分，"inspire"意为"激励"，与C选项一致。A、B、D均为负面或无关含义，干扰项设计符合易错点。）4.Accordingtotheunit'sreadingpassage,whydidtheauthordecidetobecomeaenvironmentalscientist?A.Becausehisfamilywantedhimtobeadoctor.B.Becausehewantedtoprotecttheplanet.C.Becausehewaspaidmorethanotherjobs.D.Becausehisteachertoldhimtodoso.（解析：文章中作者提到童年时目睹环境污染，决心保护地球，选项B与原文一致。其他选项均为无关或错误信息。）5.Whichofthefollowingisacorrectwaytodescribeafuturejobintheunit'sdiscussionsection?A.Itmustbeveryeasyandhavenopressure.B.Itshouldonlyinvolveworkinginalab.C.Itneedscreativityandteamwork.D.Itmustpayverywellwithoutanyskills.（解析：文章强调未来职业需结合兴趣与能力，C选项符合单元主题。A（忽略挑战）、B（职业范围局限）、D（忽视技能要求）均与文章观点矛盾。）6.Whatisthebesttitlefortheunit'swritingtaskaboutfuturecareers?A."MyFavoriteMovieStar"B."WhyIWanttoBeaDoctor"C."ChoosingaJobfortheFuture"D."HowtoStudyEnglishWell"（解析：写作任务要求探讨未来职业选择，C选项最符合主题。其他选项涉及电影、医生个人经历、英语学习，均与单元要求无关。）7.Accordingtotheunit'slisteningexercise,whatdidtheguestspeakersayaboutclimatechange?A.Itisnotaseriousproblem.B.Itwillnotaffectourlivesin20years.C.Itneedsglobalcooperationtosolve.D.Itiscausedonlybycaremissions.（解析：听力原文指出气候变化需国际协作，C选项与内容一致。其他选项如A（淡化问题）、B（时间预测）、D（单一原因）均与演讲观点不符。）8.Whichsentenceusesthecorrectcomparativeformof"important"?A.Thisbookismoreimportantthanthatone.B.Hisideaismoreimportantthanheridea.C.Theproblemismoreimportantthanwethink.D.Youropinionismoreimportantthanmine.（解析：所有选项均正确使用比较级，但若题目需考察具体语境，需结合文章中比较重要性的具体场景判断。）9.Whatdoestheunit'svocabularysectionteachabouttheword"challenge"?A.Itmeanssomethingeasytodo.B.Itmeansavoidingdifficulttasks.C.Itmeansfacingdifficultieswithcourage.D.Itmeansgivingupwhenyoufail.（解析：单元词汇解释"challenge"为"挑战"，强调勇敢面对困难，C选项符合定义。其他选项为错误含义。）10.Accordingtotheunit'sspeakingactivity,whatshouldstudentsdowhendiscussingfuturejobs?A.Onlytalkaboutjobstheyalreadyknow.B.Sharetheirpersonalopinionswithoutevidence.C.Listentoothersandaskquestions.D.Talkforalongtimewithoutstopping.（解析：口语活动强调倾听与提问，C选项符合交流原则。其他选项如A（知识局限）、B（缺乏依据）、D（无效表达）均与活动要求不符。）二、填空题（总共10题，每题2分，共20分）1.Thescientist'sdiscovery______manyyoungstudentstostudyscience.（参考答案：inspired）（解析：根据单元语法，此处需动词原形作宾语补足语，"inspiresbtodosth"固定搭配。）2.Ifyouwanttobeadoctor,youneedtoworkhardat______andbiology.（参考答案：physics）（解析：文章提到医生需学习物理、化学、生物等基础学科，此处填物理符合单元内容。）3.Theenvironmentisgettingworsebecausepeopledon't______toprotectit.（参考答案：payattention）（解析：单元阅读中提到环保需关注，"payattentionto"为固定搭配。）4.MydreamjobistobeanastronautbecauseIwantto______themoon.（参考答案：visit）（解析：写作任务中提到太空探索，"visitthemoon"为常见表达。）5.Scientistsneedtobe______becauseexperimentsoftendon'tworkthefirsttime.（参考答案：patient）（解析：文章强调科学家需耐心，"bepatientwith"为单元常用句型。）6.Theunit'sdiscussionasksstudentstothinkabout______jobswillbepopularinthefuture.（参考答案：whatkindof）（解析：语法部分练习宾语从句，"whatkindof"引导名词性从句。）7.Climatechangeisaseriousproblembecauseitcanmakesome______disappear.（参考答案：islands）（解析：听力材料提到海平面上升威胁岛屿，"islands"为具体案例。）8.Ifyouwanttobeascientist,youshouldreadmore______andwatchscienceprograms.（参考答案：books）（解析：单元建议中提到阅读书籍是学习科学的重要方式。）9.Theteacheraskedustowriteashortessayabout______wecandotohelptheenvironment.（参考答案：how）（解析：写作任务要求探讨具体行动，"how"引导方式状语从句。）10.Manystudentsfindscience______thanartbecausetherearemorerules.（参考答案：difficult）（解析：单元对比讨论中提到科学比艺术规则更多，"difficult"为形容词比较级。）三、判断题（总共10题，每题2分，共20分）1.Accordingtotheunit,allscientistsworkinlabsallday.（参考答案：False）（解析：文章提到科学家有多种工作环境，如野外考察、太空研究等，并非仅限实验室。）2.Theunit'slisteningpassagesaysclimatechangewillnothappenfor50years.（参考答案：False）（解析：听力明确指出气候变化已发生且持续加剧，而非未来事件。）3.Ifyouwanttobeadoctor,youdon'tneedtostudymathbecauseit'snotimportant.（参考答案：False）（解析：文章强调医生需学习物理、化学等，数学是基础学科之一。）4.Theunitsuggeststhatstudentsshouldnottalkaboutfuturejobstheydon'tknowmuchabout.（参考答案：False）（解析：口语活动鼓励探索未知职业，"thinkaboutjobsyouknowandjobsyoudon'tknow"为活动要求。）5.Scientistsonlyneedtobesmarttosucceedintheircareers.（参考答案：False）（解析：文章提到耐心、团队合作等品质同样重要，单一强调智力片面。）6.Theunit'sgrammarsectiononlyteachesthepresentsimpletense.（参考答案：False）（解析：单元涵盖现在进行时、一般将来时等时态，非仅一种时态。）7.Accordingtotheunit,allenvironmentalproblemscanbesolvedbytechnology.（参考答案：False）（解析：文章指出技术需结合政策、个人行动，技术并非万能。）8.Theunit'swritingtaskasksstudentstowriteapoemaboutscience.（参考答案：False）（解析：写作要求为议论文或说明文，非诗歌形式。）9.Ifyouarenotgoodatscience,youshouldnotbecomeascientist.（参考答案：False）（解析：文章提到兴趣与能力同样重要，非仅依赖天赋。）10.Theunit'svocabularysectionteaches20newwords.（参考答案：False）（四、简答题（总共8题，每题2分，共16分）1.Whydomanystudentsthinksciencesubjectsaredifficult?（参考答案：科学学科需要记忆大量术语、理解抽象概念、进行复杂实验，且考试要求高，这些因素让部分学生感到困难。）2.Accordingtotheunit,whatarethreequalitiesneededforascientist?（参考答案：1.Curiosity（好奇心）；2.Patience（耐心）；3.Teamworkability（团队合作能力）。）3.Howcanstudentslearnmoreaboutenvironmentalproblems?（参考答案：1.ReadsciencemagazineslikeNationalGeographic；2.Watchdocumentariesaboutclimatechange；3.Participateinschooleco-clubs。）4.Whatisthedifferencebetweenascientistandanengineer?（参考答案：科学家主要研究自然现象、探索未知，工程师应用科学原理解决实际问题。）5.Whyisitimportanttostudyscienceinthe21stcentury?（参考答案：科学帮助理解世界运行规律，推动技术进步，解决全球性问题如气候变化、疾病防治。）6.Howdoestheunithelpstudentsprepareforfuturecareers?（参考答案：通过讨论职业选择、提供职业信息、锻炼相关技能，帮助学生明确兴趣方向。）7.Whatshouldstudentsdoiftheyareinterestedinbecomingascientistbutpooratmath?（参考答案：1.加强数学学习；2.选择自己擅长的科学领域如生物、地理；3.参加课外辅导。）8.Howdoestheunitconnectsciencewithdailylife?（参考答案：通过案例说明科学原理在生活中的应用，如手机技术、医疗进步等。）五、应用题（总共8题，每题4分，共24分）1.Writeashortparagraph(50words)aboutwhyyouwanttostudysciencesubjects.（参考答案：Iwanttostudysciencebecauseithelpsmeunderstandhowthingswork.Scienceisexcitingandcansolvebigproblemslikepollution.Ihopetobecomeascientistinthefutureandhelpmaketheworldbetter.）2.Completethefollowingdialogueaboutfuturejobs:A:Whatdoyouthinkwillbethemostpopularjobsin20years?B:Ithink______willbemoreimportantbecauserobotscandomanyjobs.A:But______willstillneedpeopletocareforthem.B:Yes,______and______jobswillbeindemand.（参考答案：careersrelatedtoAI；elderlycare；environmentalprotection；creativedesign）3.Rewritethesentenceusingthepassivevoice:"Theteacherexplainedtheexperimenttous."（参考答案：Theexperimentwasexplainedtousbytheteacher。）4.Fillintheblankswiththecorrectformoftheverbinbrackets:IfI______(be)ascientist,I______(study)thestars.（参考答案：were；wouldstudy）5.Describeascientistyouadmire(60words).（参考答案：MyfavoritescientistisMarieCurie.ShediscoveredradiumandwasthefirstwomantowinaNobelPrize.Herhardworkandbraveryinspiremetopursuesciencedespitechallenges.）6.Writethreequestionsyouwouldaskaclimatescientist(40words).（参考答案：1.Howcanwereduceplasticpollution?2.Whatcanyoungpeopledotohelp?3.Doyouthinkwecanstopclimatechange?）7.Completethesentencewithasuitablewordfromthebox:discover/invent/research/developScientists______newmedicinestocurediseases.（参考答案：develop）8.Imagineyouareinterviewingastudentabouttheirfuturejob.Writedownthreequestions(30words).（参考答案：1.Whatjobdoyou