2026年广东省人教版九年级英语第7单元课时作业

2026年广东省人教版九年级英语第7单元课时作业一、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符合课文主旨。选项A、C、D虽然可能是部分学生的动机，但并非文章强调的核心原因。）2.ThepassagementionsafamousscientistnamedMarieCurie.Whatachievementisshemostfamousfor?A.Sheinventedthefirstcomputer.B.Shediscoveredthefirsttwoelements,poloniumandradium.C.Shewrotethefirstsciencebook.D.ShewasthefirstwomantowinaNobelPrize.（解析：根据课文内容，玛丽•居里最著名的成就是发现了钋和镭两种元素，选项B正确。其他选项与课文无关或存在事实错误。）3.Whatdoesthepassagesuggestaboutthefutureofscience?A.Sciencewillbecomelessimportantinthefuture.B.Sciencewillonlybeusefulforscientists.C.Sciencewillplayamoreimportantroleinsolvingglobalproblems.D.Sciencewillreplaceallothersubjectsinschools.（解析：根据课文内容，文章强调科学在未来将更重要的解决全球性问题，选项C符合文章观点。其他选项与文章主旨相反或过于绝对。）4.Accordingtothepassage,whydosomestudentsfindsciencesubjectsdifficult?A.Becausetheteachersarenotgood.B.Becausetheydonothaveenoughtimetostudy.C.Becausetheythinksciencesubjectsareboring.D.Becausetheydonothaveastronginterestinscience.（解析：根据课文内容，部分学生认为科学学科难的原因是觉得枯燥，选项C正确。其他选项虽然可能是部分学生的原因，但并非文章强调的重点。）5.WhatisthemainideaofthepassageinUnit7?A.Sciencesubjectsarethemostimportantsubjectsinschool.B.Manystudentsareinterestedinsciencesubjects.C.Sciencecanhelpussolvemanyproblemsinlife.D.Scientistsarethemostfamouspeopleintheworld.（解析：根据课文内容，文章主旨强调科学能够帮助解决生活中的问题，选项C正确。其他选项过于片面或与文章无关。）6.Thepassagementionsasciencecompetition.Whatisthepurposeofthiscompetition?A.Tohelpstudentsunderstandsciencebetter.B.Tomakesciencesubjectsmoreinteresting.C.Tofindthebestscientistsintheworld.D.Toencouragestudentstostudyscience.（解析：根据课文内容，科学竞赛的目的是鼓励学生学习科学，选项D正确。其他选项虽然可能是竞赛的间接效果，但并非主要目的。）7.Accordingtothepassage,whatisthefirststeptobecomeascientist?A.Toreadmanysciencebooks.B.Towatchsciencevideos.C.Toaskquestionsabouttheworld.D.Tojoinascienceclub.（解析：根据课文内容，成为科学家的第一步是提出关于世界的问题，选项C正确。其他选项虽然有助于学习科学，但并非文章强调的第一步。）8.Thepassagementionsascienceexperiment.Whatisthemostimportantthinginascienceexperiment?A.Tofollowtheinstructionscarefully.B.Togettherightresult.C.Tohavefun.D.Tocopyotherscientists.（解析：根据课文内容，科学实验最重要的是认真遵循指示，选项A正确。其他选项虽然重要，但并非实验的核心要求。）9.Accordingtothepassage,whydosomestudentsthinksciencesubjectsareboring?A.Becausetheydonotliketheteachers.B.Becausetheydonotunderstandthelessons.C.Becausetheythinksciencesubjectsaretoodifficult.D.Becausetheydonotseetheconnectionbetweenscienceandlife.（解析：根据课文内容，部分学生认为科学学科枯燥的原因是看不到科学与生活的联系，选项D正确。其他选项虽然可能是部分学生的原因，但并非文章强调的重点。）10.Thepassagementionsasciencefair.Whatisthebestwaytoprepareforasciencefair?A.Tostudyhardeveryday.B.Toaskmanyquestions.C.Todoascienceproject.D.Toreadmanysciencearticles.（解析：根据课文内容，准备科学展览的最佳方式是做一个科学项目，选项C正确。其他选项虽然有助于学习科学，但并非文章强调的最佳方式。）二、填空题（每空2分，共20分）1.AccordingtothepassageinUnit7,manystudentsareinterestedinsciencebecauseitcanhelpthem______theworldbetter.2.MarieCuriewasthefirstwomantowintheNobelPrizein______and______.3.Thepassagesuggeststhatsciencewillplayamoreimportantroleinsolving______problemsinthefuture.4.Somestudentsfindsciencesubjectsdifficultbecausetheythinksciencesubjectsare______.5.Accordingtothepassage,thefirststeptobecomeascientististo______abouttheworld.6.Thepassagementionsasciencecompetitionthataimsto______studentstostudyscience.7.Inascienceexperiment,themostimportantthingisto______theinstructionscarefully.8.Somestudentsthinksciencesubjectsareboringbecausetheydonotseethe______betweenscienceandlife.9.Thebestwaytoprepareforasciencefairisto______ascienceproject.10.Accordingtothepassage,sciencecanhelpussolvemany______inlife.（参考答案：1.understand2.Physics,Chemistry3.global4.boring5.askquestions6.encourage7.follow8.connection9.do10.problems）三、判断题（每题2分，共20分）1.AccordingtothepassageinUnit7,allstudentsfindsciencesubjectseasy.(×)（解析：根据课文内容，并非所有学生都认为科学学科容易，部分学生认为科学学科难，因此该说法错误。）2.MarieCuriediscoveredthefirsttwoelements,poloniumandradium.(√)（解析：根据课文内容，玛丽•居里确实发现了钋和镭两种元素，因此该说法正确。）3.Thepassagesuggeststhatsciencewillbecomelessimportantinthefuture.(×)（解析：根据课文内容，文章强调科学在未来将更重要的解决全球性问题，因此该说法错误。）4.Somestudentsfindsciencesubjectsdifficultbecausetheydonothaveenoughtimetostudy.(×)（解析：根据课文内容，部分学生认为科学学科难的原因是觉得枯燥，并非没有足够时间，因此该说法错误。）5.ThemainideaofthepassageinUnit7isthatsciencesubjectsarethemostimportantsubjectsinschool.(×)（解析：根据课文内容，文章主旨强调科学能够帮助解决生活中的问题，并非强调科学学科是最重要的学科，因此该说法错误。）6.Thepurposeofthesciencecompetitionistofindthebestscientistsintheworld.(×)（解析：根据课文内容，科学竞赛的目的是鼓励学生学习科学，并非寻找世界上最优秀的科学家，因此该说法错误。）7.Thefirststeptobecomeascientististoreadmanysciencebooks.(×)（解析：根据课文内容，成为科学家的第一步是提出关于世界的问题，并非阅读科学书籍，因此该说法错误。）8.Inascienceexperiment,themostimportantthingistogettherightresult.(×)（解析：根据课文内容，科学实验最重要的是认真遵循指示，并非得到正确结果，因此该说法错误。）9.Somestudentsthinksciencesubjectsareboringbecausetheydonotseetheconnectionbetweenscienceandlife.(×)（解析：根据课文内容，部分学生认为科学学科枯燥的原因是看不到科学与生活的联系，因此该说法正确。）10.Thebestwaytoprepareforasciencefairistostudyhardeveryday.(×)（解析：根据课文内容，准备科学展览的最佳方式是做一个科学项目，并非每天努力学习，因此该说法错误。）四、简答题（每题2分，共16分）1.AccordingtothepassageinUnit7,whyaremanystudentsinterestedinsciencesubjects?（参考答案：Manystudentsareinterestedinsciencesubjectsbecausesciencecanhelpthemunderstandtheworldbetter.Sciencecanalsohelpsolvemanyproblemsinlife,suchasenvironmentalissuesandhealthproblems.Additionally,sciencesubjectscanleadtomanyjobopportunitiesinthefuture.）（解析：根据课文内容，学生感兴趣科学学科的原因包括帮助理解世界、解决生活问题以及未来就业机会，答案需涵盖这些要点。）2.WhatisthemainachievementofMarieCuriementionedinthepassage?（参考答案：ThemainachievementofMarieCuriementionedinthepassageisthatshediscoveredthefirsttwoelements,poloniumandradium.ThisdiscoverywasveryimportantforthedevelopmentofscienceandhelpedherwintheNobelPrizeinPhysicsandChemistry.）（解析：根据课文内容，玛丽•居里最著名的成就是发现钋和镭，答案需包括发现内容及其重要性。）3.Accordingtothepassage,whatisthefutureofscience?（参考答案：Accordingtothepassage,thefutureofscienceisveryimportant.Sciencewillplayamoreimportantroleinsolvingglobalproblems,suchasclimatechangeandpollution.Scientistswillneedtoworktogethertofindsolutionstotheseproblems.）（解析：根据课文内容，科学未来的重要性体现在解决全球性问题，答案需涵盖这些要点。）4.Whydosomestudentsfindsciencesubjectsdifficult?（参考答案：Somestudentsfindsciencesubjectsdifficultbecausetheythinksciencesubjectsareboring.Theydonotseetheconnectionbetweenscienceandlife,whichmakesithardforthemtounderstandandenjoysciencesubjects.Additionally,somestudentsmayfindthelessonstoodifficulttounderstand.）（解析：根据课文内容，学生认为科学学科难的原因包括觉得枯燥、看不到科学与生活的联系以及理解困难，答案需涵盖这些要点。）5.Whatisthefirststeptobecomeascientistaccordingtothepassage?（参考答案：Accordingtothepassage,thefirststeptobecomeascientististoaskquestionsabouttheworld.Scientistsarealwayscuriousandaskmanyquestionstounderstandhowthingswork.Thiscuriosityhelpsthemmakenewdiscoveries.）（解析：根据课文内容，成为科学家的第一步是提出关于世界的问题，答案需涵盖好奇心和提问的重要性。）6.Whatisthepurposeofthesciencecompetitionmentionedinthepassage?（参考答案：Thepurposeofthesciencecompetitionistoencouragestudentstostudyscience.Thecompetitionprovidesaplatformforstudentstoshowtheirinterestinscienceandtolearnmoreaboutscientifictopics.Italsohelpsstudentsdeveloptheirskillsandknowledgeinscience.）（解析：根据课文内容，科学竞赛的目的是鼓励学生学习科学，答案需涵盖竞赛的平台作用和技能培养。）7.Whatisthemostimportantthinginascienceexperimentaccordingtothepassage?（参考答案：Accordingtothepassage,themostimportantthinginascienceexperimentistofollowtheinstructionscarefully.Scientistsmustfollowthestepsintheirexperimentstogetaccurateresults.Iftheydonotfollowtheinstructions,theirresultsmaybewrong.）（解析：根据课文内容，科学实验最重要的是认真遵循指示，答案需涵盖实验步骤和结果准确性。）8.Whydosomestudentsthinksciencesubjectsareboring?（参考答案：Somestudentsthinksciencesubjectsareboringbecausetheydonotseetheconnectionbetweenscienceandlife.Theydonotunderstandhowsciencecanhelpthemintheirdailylives,whichmakesthemloseinterestinsciencesubjects.）（解析：根据课文内容，学生认为科学学科枯燥的原因是看不到科学与生活的联系，答案需涵盖这些要点。）五、应用题（每题4分，共24分）1.Supposeyouareastudentinascienceclass.AccordingtothepassageinUnit7,whatcanyoudotoimproveyourunderstandingofsciencesubjects?（参考答案：Toimprovemyunderstandingofsciencesubjects,Icandothefollowing:First,Iwillaskmanyquestionsabouttheworldandtrytofindanswersthroughexperimentsandresearch.Second,Iwillparticipateinsciencecompetitionsandfairstolearnmoreaboutscienceandtoshowmyinterestinscience.Third,Iwillworkwithmyclassmatestodoscienceprojectsandsharemyknowledgewiththem.Finally,Iwillreadsciencebooksandwatchsciencevideostolearnmoreaboutscientifictopics.）（解析：根据课文内容，学生可以通过提问、参加竞赛、做项目以及阅读学习来提高科学学科的理解，答案需涵盖这些要点。）2.Imagineyouareorganizingasciencefairatyourschool.AccordingtothepassageinUnit7,whatarethemostimportantthingstoconsiderwhenpreparingforthesciencefair?（参考答案：Whenpreparingforasciencefair,themostimportantthingstoconsiderare:First,IwillchooseascienceprojectthatIaminterestedinandthatIcanunderstandwell.Second,Iwilldoresearchandexperimentstogatherdataandinformationaboutmyproject.Third,Iwillprepareadisplayboardthatshowsmyprojectandexplainshowitworks.Finally,Iwillpracticepresentingmyprojecttothejudgesandtootherstudents.）（解析：根据课文内容，准备科学展览的重要事项包括选择项目、做研究、准备展示板以及练习展示，答案需涵盖这些要点。）3.AccordingtothepassageinUnit7,whyisscienceimportantforsolvingglobalproblems?（参考答案：Scienceisimportantforsolvingglobalproblemsbecauseitcanprovidesolutionstomanyoftheworld'smostchallengingissues.Forexample,sciencecanhelpusfindwaystoreducepollutionandtoprotecttheenvironment.Sciencecanalsohelpusdevelopnewtechnologiesthatcanimproveourlives.Additionally,sciencecanhelpusunderstandandpredictnaturaldisasters,whichcansavemanylives.）（解析：根据课文内容，科学解决全球问题的重要性体现在提供解决方案、改善生活和预测自然灾害，答案需涵盖这些要点。）4.Supposeyouareateacher.AccordingtothepassageinUnit7,whatcanyoudotomakesciencesubjectsmoreinterestingforyourstudents?（参考答案：Tomakesciencesubjectsmoreinterestingformystudents,Icandothefollowing:First,Iwillusereal-lifeexamplesandexperimentstoshowstudentshowscienceworksintheworldaroundthem.Second,Iwillencouragestudentstoaskquestionsandtoexploresciencetopicsontheirown.Third,Iwillorganizesciencecompetitionsandfairstomakelearningsciencemorefunandengaging.Finally,Iwillinvitescientiststovisitmyclassandtosharetheirexperienceswithmystudents.）（解析：根据课文内容，教师可以通过实例、鼓励提问、组织竞赛以及邀请科学家来提高科学学科的兴趣，答案需涵盖这些要点。）5.AccordingtothepassageinUnit7,whatarethebenefitsofstudyingsciencesubjects?（参考答案：Thebenefitsofstudyingsciencesubjectsare:First,sciencecanhelpstudentsunderstandtheworldbetter.Second,sciencecanhelpstudentssolvemanyproblemsinlife.Third,sciencecanleadtomanyjobopportunitiesinthefuture.Additionally,sciencecanhelpstudentsdeveloptheircriticalthinkingskillsandtheirabilitytosolveproblems.）（解析：根据课文内容，学习科学学科的好处包括理解世界、解决生活问题、未来就业机会以及培养思维能力，答案需涵盖这些要点。）6.Supposeyouareastudentwhofindssciencesubjectsdifficult.AccordingtothepassageinUnit7,whatcanyoudotoimproveyourperformanceinscience?（参考答案：Toimprovemyperformanceinscience,Icandothefollowing:First,Iwillaskmyteacherforhelpandtrytounderstandthelessonsbetter.Second,Iwillstudywithmyclassmatesandsharemyknowledgewiththem.Third,Iwilldomorescienceexperimentsandprojectstopracticemyskills.Finally,Iwillreadsciencebooksandwatchsciencevideostolearnmoreaboutscientifictopics.）（解析：根据课文内容，学生可以通过寻求帮助、合作学习、做实验以及阅读学习来提高科学学科的成绩，答案需涵盖这些要点。）【标准答案及解析】一、单项选择题1.B2.B3.C4.C5.C6.D7.C8.A9.D10.C（解析：每题均根据课文内容进行分析，选项B、C、D为正确答案，其他选项为干扰项。）二、填空题1.understand2.Physics,Chemistry3.global4.boring5.askquestions6.encourage7.follow8.connection9.do10.problems（解析：每空均根据课文内容填写，答案准确无误。）三、判断题1.×2.√3.×4.×5.×6.×7.×8.×9.√10.×（解析：每题均根据课文内容进行判断，正确答案为√，错误答案为×。）四、简答题1.Manystudentsareinterestedinsciencesubjectsbecausesciencecanhelpthemunderstandtheworldbetter.Sciencecanalsohelpsolvemanyproblemsinlife,suchasenvironmentalissuesandhealthproblems.Additionally,sciencesubjectscanleadtomanyjobopportunitiesinthefuture.2.ThemainachievementofMarieCuriementionedinthepassageisthatshediscoveredthefirsttwoelements,poloniumandradium.ThisdiscoverywasveryimportantforthedevelopmentofscienceandhelpedherwintheNobelPrizeinPhysicsandChemistry.3.Accordingtothepassage,thefutureofscienceisveryimportant.Sciencewillplayamoreimportantroleinsolvingglobalproblems,suchasclimatechangeandpollution.Scientistswillneedtoworktogethertofindsolutionstotheseproblems.4.Somestudentsfindsciencesubjectsdifficultbecausetheythinksciencesubjectsareboring.Theydonotseetheconnectionbetweenscienceandlife,whichmakesithardforthemtounderstandandenjoysciencesubjects.Additionally,somestudentsmayfindthelessonstoodifficulttounderstand.5.Accordingtothepassage,thefirststeptobecomeascientististoaskquestionsabouttheworld.Scientistsarealwayscuriousandaskmanyquestionstounderstandhowthingswork.Thiscuriosityhelpsthemmakenewdiscoveries.6.Thepurposeofthesciencecompetitionistoencouragestudentstostudyscience.Thecompetitionprovidesaplatformforstudentstoshowtheirinterestinscienceandtolearnmoreaboutscientifictopics.Italsohelpsstudentsdeveloptheirskillsandknowledgeinscience.7.Accordingtothepassage,themostimportantthinginascienceexperimentistofollowtheinstructionscarefully.Scientistsmustfollowthestepsintheirexperimentstogetaccurateresults.Iftheydonotfollowtheinstructions,theirresultsmaybewrong.8.Somestudentsthinksciencesubjectsareboringbecausetheydonotseetheconnectionbetweenscienceandlife.Theydonotunderstandhowsciencecanhelpthemintheirdailylives,whichmakesthemloseinterestinsciencesubjects.（解析：每题均根据课文内容进行回答，答案准确且完整。）五、应用题1.Toimprovemyunderstandingofsciencesubjects,Icandothefollowing:First,Iwillaskmanyquestionsabouttheworldandtrytofindanswersthroughexperimentsandresearch.Second,Iwillparticipateinsciencecompetitionsandfairstolearnmoreaboutscienceandtoshowmyinterestinscience.Third,Iwillworkwithmyclassmatestodoscienceprojectsandsharemyknowledgewiththem.Finally,Iwillreadsciencebooksandwatchsciencevideostolearnmoreaboutscientifictopics.2.Whenpreparingforasciencefair,themostimportantthingstoconsiderare:First,IwillchooseascienceprojectthatIaminterestedinandthatIcanunderstandwell.Second,Iwilldoresearchandexperimentstogatherdataandinformationaboutmyproject.Third,Iwillprepareadisplayboardt