2026年江苏省人教版初中英语第9章同步练习题

2026年江苏省人教版初中英语第9章同步练习题一、单项选择题（每题2分，共20分）1.AccordingtothepassageinUnit9,whatisthemainreasonwhymanystudentschoosetostudysciencesubjects?A.Becausesciencesubjectsareeasierthanothersubjects.B.Becausesciencesubjectscanhelpthemunderstandtheworldbetter.C.Becausesciencesubjectsaremoreinterestingthanartsubjects.D.Becausesciencesubjectshavemorejobopportunitiesinthefuture.（解析：根据第9章第一课内容，文章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。选项A、C、D均未在文中提及，属于干扰项。）2.Intheunit9readingpassage,howdoestheauthordescribetheroleofscientistsinsolvingenvironmentalproblems?A.Scientistsareonlyresponsiblefordoingexperimentsinthelab.B.Scientistsworkalonetofindsolutionswithoutteamwork.C.Scientistscollaboratewithengineersandgovernmentstocreatenewtechnologies.D.Scientistsonlyfocusonstudyinganimalsandplants.（解析：文中第二课提到科学家与工程师、政府合作开发环保技术，选项C符合文意。选项A、B、D均与文中描述不符，如文中强调科学家需与团队合作，排除B；文中未限定科学家只研究动植物，排除D。）3.Accordingtotheunit9grammarsection,whichsentencecorrectlyusesthepresentperfecttensetodescribeafinishedactionwithpresentresults?A.IhavevisitedtheGreatWallthreetimeslastyear.B.Shehasfinishedherhomeworkfortwohours.C.Theywenttothemuseumandtheysawmanyinterestingexhibits.D.HehasbeentoLondonsincehewasachild.（解析：选项B正确使用了现在完成时描述“完成作业”这一动作及其结果。选项A时间状语错误，应为“lastyear”而非“havevisited”；选项C未使用现在完成时；选项D使用现在完成进行时，强调持续状态，与题意不符。）4.Intheunit9writingtask,whatshouldstudentsincludeintheirparagraphtoexplainwhyscienceisimportant?A.Onlypersonalopinionswithoutanyfacts.B.Onlyscientifictermswithoutsimpleexplanations.C.Amixofreasonslikeimprovinghealth,protectingtheenvironment,andcreatingjobs.D.Onlyexamplesfromtheirowncountrywithoutglobalperspectives.（解析：根据写作指导，应结合事实和观点，如选项C所述，涵盖多方面理由。选项A缺乏事实支撑，选项B术语过多，选项D范围过窄，均不符合写作要求。）5.Accordingtotheunit9vocabularylist,whichwordbestdescribesascientistwhoisverycuriousandalwaysasksquestions?A.CarefulB.CreativeC.CuriousD.Clever（解析：文中词汇部分明确解释“curious”意为“好奇的”，常用于形容科学家。选项A“careful”意为“仔细的”，选项B“creative”意为“有创造力的”，选项D“clever”意为“聪明的”，均与题意不符。）6.Intheunit9listeningpassage,whydoesthegirlsuggestusingsolarenergyforschoolprojects?A.Becausesolarenergyisthecheapest.B.Becausesolarenergyisthemostpowerful.C.Becausesolarenergyisrenewableandenvironmentallyfriendly.D.Becausesolarenergyiseasytoinstall.（解析：听力原文中女孩强调太阳能是可再生能源且环保，选项C与原文一致。选项A、B、D均未在对话中提及，如文中未比较价格或功率。）7.Accordingtotheunit9speakingactivity,whatshouldstudentsdowhentheydisagreewiththeirpartnerduringadiscussion?A.Ignoretheirpartner’sideasandkeeptalkingabouttheirown.B.Say“Idon’tthinkso”withoutgivinganyreasons.C.Askquestionstounderstandtheirpartner’spointofview.D.Immediatelychangetheiropiniontoagreewiththeirpartner.（解析：口语活动指导中强调应尊重不同观点并提问理解，选项C符合要求。选项A、B、D均违反了有效沟通的原则。）8.Intheunit9readingpassageaboutclimatechange,whatistheauthor’smainpurpose?A.Totellastoryaboutafamousscientist.B.Topersuadereaderstobuymoreelectriccars.C.ToexplainhowclimatechangeaffectstheEarth.D.Toaskquestionsaboutthefutureofscience.（解析：文章首段明确指出“thispassagetellsushowclimatechangeaffectstheEarth”，选项C为正确答案。选项A、B、D均未涵盖全文主旨。）9.Accordingtotheunit9grammarexercise,whichsentencecorrectlyusesthepassivevoicetodescribeanactiondonetosomeoneorsomething?A.Thestudentscleanedtheclassroomyesterday.B.Theclassroomwascleanedbythestudentsyesterday.C.ThestudentswerecleaningtheclassroomwhenIarrived.D.Theclassroomcleanedthestudentsyesterday.（解析：选项B正确使用了被动语态“wascleanedby”，强调动作接受者。选项A为主动语态，选项C为现在进行时被动语态，选项D结构错误。）10.Intheunit9unittest,whatshouldstudentsdoiftheyfinishallthequestionsearly?A.Checktheiranswersagainandagain.B.Readthepassageonemoretime.C.Asktheteacherformorequestions.D.Startanewtesttopracticemore.（解析：考试建议中强调应检查答案，选项A符合要求。选项B、C、D均不属于合理行为，如文中未建议额外练习或提问。）二、填空题（每空2分，共20分）1.Accordingtotheunit9passage,scientistsuseexperimentsto______(3words)thetheoriestheybelievearetrue.（参考答案：testandimprove）（解析：文中实验部分明确提到“scientiststesttheirtheoriesandimprovethemthroughexperiments”，需填入“testandimprove”。）2.Intheunit9grammarsection,thesentence“ShehaslivedinShanghaiforfiveyears”usesthe______(1word)tensetoshowafinishedactionwithpresentresults.（参考答案：presentperfect）（解析：文中语法讲解指出该句使用现在完成时，强调“五年”的完成性影响现在。）3.Theunit9vocabularylistdefines“renewable”assomethingthatcanbe______(1word)againandagain.（参考答案：reused）（解析：词汇表中“renewable”与“reused”同义，如太阳能可重复利用。）4.Intheunit9listeningpassage,theboysuggestsusingwindenergybecauseitis______(2words)andcanhelptheschoolsavemoney.（参考答案：cleanandcheap）（解析：听力中男孩提到风力发电“cleanandcheap”，需填入这两个形容词。）5.Accordingtotheunit9speakingactivity,whenstudentsgiveopinions,theyshouldusephraseslike“Ithink…”or“Inmyopinion…”.（参考答案：opinions）（解析：口语指导中强调表达观点时应使用引导词，如“Ithink…”。）6.Theunit9readingpassageabouttheGreatWallmentionsthatitwasbuiltovermanycenturiesbyhundredsofthousandsofworkers.（参考答案：centuries）（解析：文中明确提到长城“wasbuiltovermanycenturies”，需填入时间单位。）7.Intheunit9grammarexercise,thesentence“ThebookwaswrittenbyGeorgeOrwell”usesthe______(1word)voicetofocusonthebook,notthewriter.（参考答案：passive）（解析：语法讲解指出该句为被动语态，强调动作接受者“thebook”。）8.Theunit9unittestincludesquestionsaboutscienceexperiments,environmentalprotection,andfuturetechnologies.（参考答案：scienceexperiments）（解析：考试范围中明确包含“scienceexperiments”，需填入该主题。）9.Accordingtotheunit9passage,scientistslikeMarieCuriemadeimportantdiscoveriesthathelpedpeopleunderstandtheworldbetter.（参考答案：MarieCurie）（解析：文中介绍玛丽•居里时提到她“madeimportantdiscoveries”，需填入人名。）10.Intheunit9vocabularylist,theword“collaborate”meanstoworktogetherwithotherstoachieveacommongoal.（参考答案：collaborate）（解析：词汇表中定义“collaborate”为“worktogether”，需填入动词原形。）三、判断题（每题2分，共20分）1.Accordingtotheunit9passage,allscientistsworkinbiglaboratorieswithexpensiveequipment.（参考答案：False）（解析：文中提到有些科学家在野外工作，如研究动物或植物，并非所有科学家都在实验室。）2.Thepresentperfecttensecanbeusedtodescribeactionsthathappenedataspecifictimeinthepast.（参考答案：False）（解析：现在完成时强调过去动作对现在的影响，而非具体过去时间，如“lastyear”属于过去时间状语，应使用一般过去时。）3.Intheunit9speakingactivity,itisokaytointerruptyourpartnerwhentheyaretalkingtoshowagreement.（参考答案：False）（解析：口语指导中强调应耐心倾听，打断对方违反沟通礼仪。）4.Theunit9readingpassageaboutclimatechangesuggeststhatindividualactionscannotmakeadifference.（参考答案：False）（解析：文章结尾提到“everyonecanhelpprotecttheenvironment”，强调个人行动的重要性。）5.Theword“renewable”intheunit9passagemeanssomethingthatisexpensivetoproduce.（参考答案：False）（解析：文中解释“renewable”指可重复利用的资源，如太阳能，与价格无关。）6.Intheunit9grammarexercise,thesentence“Theyarebuildinganewschoolnow”usesthepresentperfectcontinuoustense.（参考答案：False）（解析：该句为现在进行时，强调动作正在进行，而非现在完成进行时。）7.Theunit9vocabularylistdefines“curious”as“notinterestedinlearningnewthings”.（参考答案：False）（解析：词汇表中“curious”意为“好奇的”，与“notinterested”相反。）8.Accordingtotheunit9listeningpassage,thegirlthinkssolarenergyisthebestbecauseitproducesthemostelectricity.（参考答案：False）（解析：听力中女孩强调太阳能“cleanandeasytoinstall”，未提发电量。）9.Theunit9unittestincludessubjectivequestionslikeshortanswersandessays.（参考答案：True）（解析：考试说明中提到包含主观题，如“shortanswers”和“essays”。）10.Theunit9passageaboutMarieCuriementionsthatsheonlystudiedinFrance.（参考答案：False）（解析：文中提到她曾在波兰和法国学习，未限定仅法国。）四、简答题（每题2分，共16分）1.Accordingtotheunit9passage,whyisteamworkimportantforscientists?（参考答案：Teamworkallowsscientiststoshareideas,solveproblemsmoreefficiently,andcombinedifferentskillstoachievebetterresults.）（解析：文中实验部分提到“teamworkhelpsscientistsworkbettertogether”，需结合合作优势作答。）2.Intheunit9grammarsection,howdoesthepresentperfecttensedifferfromthesimplepasttense?（参考答案：Thepresentperfecttenseconnectspastactionstothepresent,whilethesimplepasttensedescribesfinishedactionsinthepastwithoutpresentconnection.）（解析：语法讲解对比了两种时态的用法，需区分“连接现在”和“仅描述过去”。）3.Theunit9vocabularylistincludestheword“collaborate”.Giveonesentenceusingthiswordinasciencecontext.（参考答案：Scientistsneedtocollaboratetobuildanewspacestation.）（解析：需用“collaborate”造句，并符合科学主题，如太空站建设。）4.Accordingtotheunit9listeningpassage,whataretworeasonstheboygivesforusingwindenergy?（参考答案：1.Itiscleananddoesnotpollutetheenvironment.2.Itcanhelptheschoolsavemoneyonelectricity.）（解析：听力中男孩明确提到两点理由，需准确复述。）5.Intheunit9speakingactivity,whatshouldstudentsdoiftheydon’tknowtheanswertoaquestion?（参考答案：Theyshouldsay“Idon’tknow”andaskformoretime,ortrytoexplaintheirunderstandingintheirownwords.）（解析：口语指导建议诚实并展示思考过程，如“don’tknow”或“trytoexplain”。）6.Theunit9readingpassagementionstheGreatWall.Whatisonefactaboutit?（参考答案：Itwasbuiltover2,000yearsagobymanydifferentdynasties.）（解析：文中提到长城“wasbuiltover2,000years”，需填入具体事实。）7.Accordingtotheunit9grammarexercise,howdoyouformthepresentperfectpassivevoice?（参考答案：Use“has/havebeen+pastparticiple”,e.g.,“Thebookhasbeenreadbyhim.”）（解析：语法讲解指出被动语态结构，需填入正确形式。）8.Theunit9unittestincludesawritingtask.Whatshouldstudentswriteabout?（参考答案：Theyshouldwriteaboutwhyscienceisimportant,usingreasonslikehealth,environment,andjobs.）（解析：写作任务要求说明科学的重要性，需结合文中提纲作答。）五、应用题（每题4分，共24分）1.Readthefollowingpassageandanswerthequestion:“Lastyear,ourschoolstartedaprojecttousesolarenergy.Thestudentsinstalledsolarpanelsontheroof.Now,theschoolusessunlighttomakeelectricity.Thishelpstheenvironmentbecausesolarenergyisclean.Italsosavesmoneybecausewedon’tneedtobuyasmuchelectricityfromthecompany.ManystudentsthinkthisisagreatideabecauseitteachesusaboutscienceandhelpstheEarth.”Question:Whataretwobenefitsofusingsolarenergyaccordingtothepassage?（参考答案：1.Itiscleanandhelpstheenvironment.2.Itsavesmoneybyreducingelectricitycosts.）（解析：需从文中提取“clean”和“savesmoney”两个明确信息点。）2.Completethefollowingdialoguewithappropriatewordsfromtheunit9vocabularylist:A:Whatdoyouthinkaboutthenewsciencemuseum?B:It’samazing!Therearesomanyexhibitsabout______(1word).A:Yes,andthescientiststhere______(1word)tocreatenewdisplays.B:Ialsolikedthesectionaboutrenewableenergy.（参考答案：1.science2.collaborate）（解析：根据上下文，第一空填“science”，第二空填“collaborate”。）3.Rewritethefollowingsentenceusingthepresentperfectpassivevoice:“Theengineersbuiltthebridgelastmonth.”（参考答案：Thebridgehasbeenbuiltbytheengineerslastmonth.）（解析：需将主动句改为被动句，并使用现在完成时。）4.Writeashortparagraph(4-5sentences)aboutwhyteamworkisimportantinscienceexperiments.（参考答案：Teamworkinscienceexperimentsallowsdifferentpeopletobringtheirownskills,likelabworkorresearch.Whenscientistsworktogether,theycansolveproblemsfasterandmakebetterdiscoveries.Also,ifonepersonmakesamistake,otherscanhelpfixit.Intheend,teamworkleadstobetterresultsthanworkingalone.）（解析：需结合科学实验场景，说明合作优势，如技能互补、效率提升等。）5.TranslatethefollowingsentenceintoEnglishusingthepresentperfecttense:“他们已经完成了作业。”（参考答案：Theyhavefinishedtheirhomework.）（解析：需使用现在完成时“havefinished”，并符合中文句意。）6.Createaquestionforaunit9speakingactivityaboutenvironmentalprotection:（参考答案：Whatcanstudentsdointheirdailylifetohelpprotecttheenvironment?）（解析：需设计开放性问题，符合口语活动主题，如环保行为。）六、案例分析（每题2分，共18分）1.CaseStudy:Astudentwritesthefollowingsentenceintheunit9unittest:“Thesunshinesbecauseitishot.”Isthissentencecorrect?Whyorwhynot?（参考答案：Incorrect.Thesentenceshouldbe:‘Thesunshinesbecauseitgivesofflightandheat.’Theoriginalsentenceistoosimpleanddoesnotexplainthesciencebehindit.）（解析：需结合科学知识，指出原句“hot”过于笼统，应补充“lightandheat”。）2.CaseStudy:Inaunit9speakingactivity,twostudentsdiscussrenewableenergy.StudentAsays:“Ithinksolarenergyisthebestbecauseitworkseverywhere.”StudentBreplies:“No,windenergyisbetterbecauseitischeaper.”Whatshouldtheteacherdo?（参考答案：Theteachershouldencouragethemtolistentoeachother’sideasandexplaintheirreasons.Theycouldask,“Whataretheadvantagesofsolarenergy?”and“Whydoyouthinkwindenergyischeaper?”toimprovetheirdiscussionskills.）（解析：需结合口语活动指导，强调倾听和解释，并给出改进建议。）3.CaseStudy:Aunit9readingpassagementionsascientistwhodiscoveredanewplanet.Thepassagesays:“ThisplanetisveryfarfromEarth,butithaswaterandair.”Astudentasks:“Canwegotherenow?”Whatisthecorrectanswer?（参考答案：No,wecannotgotherenow.Thepassageonlysaysithaswaterandair,notthatitishabitableorreachable.Scientistsstillneedtostudyitmore.）（解析：需根据文章信息，指出学生提问超出原文范围，强调科学严谨性。）4.CaseStudy:Inaunit9grammarexercise,astudentwrites:“Thebookwasreadbymeyesterday.”Isthissentencecorrect?Whyorwhynot?（参考答案：Incorrect.Thesentenceshouldbe:‘Ireadthebookyesterday.’Thepassivevoiceisnotneededherebecausethesubject(I)performedtheaction.）（解析：需指出原句错误，解释主动语态更合适，并说明被动语态使用条件。）5.CaseStudy:Aunit9vocabularylistdefines“collaborate”as“toworktogetherwithothers.”Astudentusesitinasentence:“Icollaboratewithmyfriendstoplaygames.”Isthiscorrect?Whyorwhynot?（参考答案：Incorrect.Theword“collaborate”isusuallyusedforseriouswork,likescienceprojectsorresearch.Playinggamesismorelike“playtogether.”）（解析：需结合词汇适用场景，指出“collaborate”更适用于学术或工作环境，游戏场景应使用其他词。）6.CaseStudy:Inaunit9unittest,astudentanswersaquestionaboutclimatechange:“ClimatechangeisgoodbecauseitmakestheEarthwarmer.”Isthisanswercorrect?Whyorwhynot?（参考答案：Incorrect.Climatechangeisaseriousproblembecauseitcausesextremeweather,risingsealevels,andothernegativeeffects.Beingwarmerisnotalwaysgoodfortheenvironment.）（解析：需结合科学知识，指出学生回答片面且错误，强调气候变化的危害。）7.CaseStudy:Aunit9listeningpassagedescribesasciencefair.Astudentwritesasummary:“Thestudentsshowedexperimentsandtheteachergaveprizes.”Isthissummarycomplete?Whyorwhynot?（参考答案：Incomplete.Thesummaryshouldincludemoredetails,likewhatkindsofexperimentswereshown,whowontheprizes,orwhatthestudentslearned.）（解析：需指出总结过于简略，应补充具体信息，如实验类型、获奖者等。）8.CaseStudy:Inaunit9speakingactivity,astudentisasked:“Whatdoyouthinkaboutscience?”Theyreply:“Idon’tknow.”Whatshouldtheteacherdo?（参考答案：Theteachershouldencouragethemtothinkaboutitandgiveatleastonereason,evenifit’ssimple.Theycouldsay,“That’sokay.Canyouthinkofonethingyoulikeaboutscience?”tohelpthemparticipate.）（解析：需结合口语活动指导，鼓励学生尝试表达，并提供引导性问题。）9.CaseStudy:Aunit9readingpassagementionsascientistwhostudiedanimalsinthewild.Thepassagesays:“Shetookphotosandwrotenoteseveryday.”Astudentasks:“Whatdidsheeatforlunch?”Whatisthecorrectanswer?（参考答案：No,thepassagedoesnotmentionwhatsheate.Itonlysaysshetookphotosandwrotenotes.Askingaboutlunchisnotrelevanttothetopic.）（解析：需指出学生提问超出文章范围，强调提问应与主题相关。）七、论述题（每题2分，共22分）1.Discusstheimportanceofteamworkinscienceexperiments.Provideatleastthreereasonswithexamples.（参考答案：Teamworkinscienceexperimentsiscrucialbecause:2.Differentpeoplehavedifferentskills,likelabworkorresearch.Forexample,onepersoncanhandleequipmentwhileanotherdesignsexperiments.3.Teamworksolvesproblemsfaster.Ifonepersonisstuck,otherscanhelp.Forexample,inachemistryproject,onepersonmightnotknowhowtomixchemicals,butateammatecanassist.4.Teamsmakebetterdiscoveries.Whenpeopleshareideas,theycancombinethemtocreatesomethingnew.Forexample,multiplescientistsworkingonaspacemissioncandesignabetterrocketbycombiningtheirknowledge.）（解析：需分三点论述，每点结合科学场景举例，如实验技能互补、问题解决效率、创新成果等。）5.Explainthedifferencebetweenthepresentperfecttenseandthesimplepasttense.Giveexamplesinasciencecontext.（参考答案：Thepresentperfecttenseconnectspastactionstothepresent,whilethesimplepasttensedescribesfinishedactionsinthepast.Forexample:-Simplepast:“MarieCuriediscoveredradiumin1898.”(Thediscoveryhappenedandendedinthepast.)-Presentperfect:“MarieCuriehasdiscoveredradium,whichstillhelpsscientiststoday.”(Thediscoveryhappenedinthepastbuthaspresentrelevance.)Thepresentperfectisusedforactionswithresultsnow,whilethesimplepastisforactionswithoutpresentconnection.）（解析：需对比两种时态的用法，并使用科学主题举例，如玛丽•居里的发现及其影响。）6.Describethreewaysstudentscanusetheunit9vocabularylisttoimprovetheirEnglish.（参考答案：1.Learnnewwordsdaily.Writeeachwordinasentencetounderstanditsmeaning.Forexample,ifthewordis“collaborate,”write:“Scientistscollaboratetobuildaspacestation.”7.Usethewordsinspeakingandwriting.Practicetheminunit9activitieslikediscussionsoressays.8.Makeflashcardswiththeword,itsmeaning,andanexamplesentence.Reviewthemregularlytorememberbetter.）（解析：需分三点说明学习方法，如日常记忆、实际应用、工具辅助，并举例说明。）9.WhyisitimportantforstudentstoreadsciencearticlesinEnglish?Discussatleasttwobenefits.（参考答案：ReadingsciencearticlesinEnglishhelpsstudents:10.Learnreal-worldsciencevocabulary.Forexample,articlesaboutclimatechangeteachwordslike“renewable”and“emissions,”whichareusefulforbothscienceanddailylife.11.Improvereadingskillsandunderstandingofcomplextopics.Englisharticlesoftenexplainscienceinaclearway,helpingstudentsthinklikescientistsbyunderstandinghowideasarepresented.）（解析：需分两点论述阅读科学文章的益处，如词汇积累、阅读能力提升，并举例说明。）12.Howcanstudentsprepareforaunit9unittest?Giveatleastthreepreparationtips.（参考答案：Studentscanpreparefortheunit9testby:13.Reviewingallvocabularywordsandwritingexamplesentencesforeach.14.Practicinggrammarexercisesfromthetextbooktoimproveaccuracy.15.Doingpastunitteststounderstandtheformatandtypesofquestions.16.Studyingthereadingpassagestoimprovecomprehensionskills.）（解析：需分至少三点给出备考建议，如词汇复习、语法练习、模拟测试等。）17.Discusstheroleofscientistsinsolvingenvironmentalproblems.Provideexamplesfromtheunit9passage.（参考答案：Scientistsplayakeyroleinsolvingenvironmentalproblemsby:18.Researchingissueslikeclimatechange.Forexample,theunit9passagementionsscientistsstudyinghowsolarenergycanhelpreducepollution.19.Developingnewtechnologies.Thepassagetalksaboutengineersandscientistsworkingtogethertocreatecleanenergysolutions.20.Educatingthepublic.Scientistsexplaintheirfindingstohelppeopleunderstandandtakeaction.Forexample,thepassagementionsstudentslearningaboutrenewableenergy.）（解析：需分三点论述科学家作用，并结合单元内容举例，如太阳能研究、技术合作、公众教育。）21.Whyiscuriosityimportantforscientists?Explainwithexamplesfromtheunit9readingpassage.（参考答案：Curiosityisimportantforscientistsbecauseitdrivesthemtoaskquestionsandexploreunknownthings.Forexample,theunit9passagementionsMarieCuriebeingcuriousaboutradioactivity,whichledhertomakediscoveries.Curiousscientistskeeplearningandpushingboundaries,likestudyinganimalsinthewildorexploringspace.）（解析：需解释好奇心对科学家的意义，并使用单元内容举例，如玛丽•居里的研究动机。）22.HowcanstudentsusethepresentperfecttenseintheirdailyEnglishcommunication?Givethreeexamples.（参考答案：StudentscanusethepresentperfecttenseindailyEnglishby:23.Describingrecentexperiences:“Ihavevisitedthesciencemuseumtwicethismonth.”24.Talkingaboutchangesovertime:“Theschoolhasbecomemoreeco-friendlyinthelastyear.”25.Givingreasonsfordecisions:“Ihavedecidedtostudysciencebecauseitisinteresting.”）（解析：需分三点说明日常应用场景，并给出具体例句，如经历、变化、理由。）26.Discussthebenefitsofusingrenewableenergyaccordingtotheunit9passage.（参考答案：Theunit9passagehighlightsthreebenefitsofrenewableenergy:27.Itiscleananddoesnotpollutetheenvironment.Forexample,solarenergydoesnotcauseairpollution.28.Itsavesmoneyinthelongrun.Usingsunlighttomakeelectricityreducescostsforschoolsorhomes.29.Itteachespeopleaboutscience.Projectslikesolarpanelshelpstudentslearnaboutenergyandtechnology.）（解析：需结合单元内容，分三点说明可再生能源优势，如环保、经济、教育价值。）30.WhyisitimportantforstudentstoparticipateindiscussionsinEnglishclass?Discussatleasttworeasons.（参考答案：ParticipatinginEnglishdiscussionshelpsstudents:31.Improvespeakingskillsandfluency.Practicesayingideasclearlyhelpsthemtalkbetterinthefuture.32.Learnfromothers’perspectives.Forexample,inaunit9discussionaboutscience,studentscanheardifferentopinionsandexpandtheirthinking.33.Buildconfidence.SharingideashelpsthemfeelmorecomfortablespeakingEnglish.）（解析：需分至少两点论述讨论的重要性，如口语提升、思维拓展、自信培养。）34.HowcanstudentsimprovetheirreadingcomprehensionforsciencearticlesinEnglish?Givethreestrategies.（参考答案：Studentscanimprovereadingcomprehensionby:35.Previewingthearticlefirst.Lookatheadingsandpicturestounderstandthemainidea.36.Usingcontextcluestoguessmeaningsofunknownwords.Forexample,ifthewordis“renewable,”readthesentencetoseeifitmeanssomethingthatlastsforever.37.Askingquestionswhilereading.Iftheydon’tunderstandsomething,theycanrereadorlookupwordstoclarify.）（解析：需分三点给出阅读策略，如预览文章、语境猜测、提问思考，并举例说明。）【标准答案及解析】一、单项选择题1.B2.C3.B4.C5.C6.C7.C8.C9.B10.A（解析：每题均根据第9章内容设计，选项设置干扰项如易错概念或无关信息，答案解析强调与原文对应点。）二、填空题1.testandimprove2.presentperfect3.reused4.cleanandcheap5.opinions2.centuries7.passive8.scienceexperiments9.MarieCurie10.collaborate（解析：每题填空均来自单元词汇或语法讲解，答案解析说明具体出处和用法。）三、判断题1.F2.F3.F4.F5.F6.F7.T8.F9.T10.F（解析：每题判断基于单元内容，答案解析说明与原文的符合或矛盾点。）四、简答题1.参考答案：Teamworkallowsscientiststoshareideas,solveproblemsmoreefficiently,andcombinedifferentskillstoachievebetterresults.解析：文中实验部分强调合作优势，答案需结合“分工合作”“效率提升”“技能互补”等科学场景。2.参考答案：Thepresentperfecttenseconnectspastactionstothepresent,whilethesimplepasttensedescribesfinishedactionsinthepastwithoutpresentconnection.解析：语法讲解对比两种时态，答案需区分“现在影响”和“仅描述过去”的区别。3.参考答案：Use“has/havebeen+pastparticiple”,e.g.,“Thebookhasbeenreadbyhim.”解析：被动语态结构为“助动词+过去分词”，答案需填入正确形式并举例。4.参考答案：Theyshouldsay“Idon’tknow”andaskformoretime,ortrytoexplaintheirunderstandingintheirownwords.解析：口语指导强调诚实和展示思考，答案需结合沟通礼仪。5.参考答案：Itwasbuiltover2,000yearsagobymanydifferentdynasties.解析：文中提到长城“wasbuiltover2,000years”，答案需填入具体事实。6.参考答案：Theyshouldwriteaboutwhyscienceisimportant,usingreasonslikehealth,environment,andjobs.解析：写作任务要求说明科学的重要性，答案需结合单元提纲。五、应用题1.参考答案：1.Itiscleanandhelpstheenvironment.2.Itsavesmoneybyreducingelectricitycosts.解析：文中明确提到“clean”和“savesmoney”，答案需提取这两个信息点。2.参考答案：1.science2.collaborate解析：根据上下文，第一空填“science”，第二空填“collaborate”。3.参考答案：Thebridgehasbeenbuiltbytheengineerslastmonth.解析：需将主动句改为被动句，并使用现在完成时。4.参考答案：Teamworkinscienceexperimentsallowsdifferentpeopletobringtheirownskills,likelabworkorresearch.Whenscientistsworktogether,theycansolveproblemsfasterandmakebetterdiscoveries.Also,ifonepersonmakesamistake,otherscanhelpfixit.Intheend,teamworkleadstobetterresultsthanworkingalone.解析：需结合科学实验场景，说明合作优势，如技能互补、效率提升等。5.参考答案：Theyhavefinishedtheirhomework.解析：需使用现在完成时“havefinished”，并符合中文句意。6.参考答案：Whatcanstudentsdointheirdailylifetohelpprotecttheenvironment?解析：需设计开放性问题，符合口语活动主题，如环保行为。六、案例分析1.参考答案：Incorrect.Thesentenceshouldbe:‘Thesunshinesbecauseitgivesofflightandheat.’Theoriginalsentenceistoosimpleanddoesnotexplainthesciencebehindit.解析：需结合科学知识，指出原句“hot”过于笼统，应补充“lightandheat”。2.参考答案：Theteachershouldencouragethemtolistentoeachother’sideasandexplaintheirreasons.Theycouldask,“Whataretheadvantagesofsolarenergy?”and“Whydoyouthinkwindenergyischeaper?”toimprovetheirdiscussionskills.解析：需结合口语活动指导，强调倾听和解释，并给出改进建议。3.参考答案：No,thepassageonlysaysithaswaterandair,notthatitishabitableorreachable.Scientistsstillneedtostudyitmore.解析：需根据文章信息，指出学生提问超出原文范围，强调科学严谨性。4.参考答案：Incorrect.Thesentenceshouldbe:‘Ireadthebookyesterday.’Thepassivevoiceisnotneededherebecausethesubject(I)performedtheaction.解析：需指出原句错误，解释主动语态更合适，并说明被动语态使用条件。5.参考答案：Incorrect.Theword“collaborate”isusuallyusedforseriouswork,likescienceprojectsorresearch.Playinggamesismorelike“playtogether.”解析：需结合词汇适用场景，指出“collaborate”更适用于学术或工作环境，游戏场景应使用其他词。6.参考答案：Incorrect.Climatechangeisaseriousproblembecauseitcausesextremeweather,risingsealevels,andothernegativeeffects.Beingwarmerisnotalwaysgoodfortheenvironment.解析：需结合科学知识，指出学生回答片面且错误，强调气候变化的危害。7.参考答案：Incomplete.Thesummaryshouldincludemoredetails,likewhatkindsofexperimentswereshown,whowontheprizes,orwhatthestudentslearned.解析：需指出总结过于简略，应补充具体信息，如实验类型、获奖者等。8.参考答案：Theteachershouldencouragethemtothinkaboutitandgiveatleastonereason,evenifit’ssimple.Theycouldsay,“That’sokay.Canyouthinkofonethingyoulikeaboutscience?”tohelpthemparticipate.解析：需结合口语活动指导，鼓励学生尝试表达，并提供引导性问题。9.参考答案：No,thepassagedoesnotmentionwhatsheate.Itonlysaysshetookphotosandwrotenotes.Askingaboutlunchisnotrelevanttothetopic.解析：需指出学生提问超出文章范围，强调提问应与主题相关。七、论述题1.参考答案：Teamworkinscienceexperimentsiscrucialbecause:2.Differentpeoplehavedifferentskills,likelabworkorresearch.Forexample,onepersoncanhandleequipmentwhileanotherdesignsexperiments.3.Teamworksolvesproblemsfaster.Ifonepersonisstuck,otherscanhelp.Forexample,inachemistryproject,onepersonmightnotknowhowtomixchemicals,butate