2025-2026年四川省人教版高一英语第8单元课后练习题_第1页
2025-2026年四川省人教版高一英语第8单元课后练习题_第2页
2025-2026年四川省人教版高一英语第8单元课后练习题_第3页
2025-2026年四川省人教版高一英语第8单元课后练习题_第4页
2025-2026年四川省人教版高一英语第8单元课后练习题_第5页
已阅读5页,还剩25页未读, 继续免费阅读

付费下载

下载本文档

版权说明:本文档由用户提供并上传,收益归属内容提供方,若内容存在侵权,请进行举报或认领

文档简介

2025-2026年四川省人教版高一英语第8单元课后练习题一、单项选择题(总共10题,每题2分,共20分)1.根据人教版高一英语第8单元课文内容,Whatisthemainpurposeofthepassage"ProtectingtheEnvironment"?Thepassagemainlydiscusses______.A.Thehistoryofenvironmentalpollutioninthe20thcenturyB.TheimportanceofrecyclingandreducingwasteinmodernsocietyC.TheeconomicbenefitsofusingrenewableenergysourcesD.Theculturaldifferencesinenvironmentalawarenessbetweencountries参考答案:B解析:本题考查第8单元课文核心主题。根据课文内容,文章重点强调现代社会的垃圾分类、减少浪费对环境保护的意义,如文中提到"Recyclingpapercansavetreesandenergy","Usingreusablebagsinsteadofplasticbagshelpsreducepollution"。选项A、C、D虽与环保相关,但非文章主旨。选项B准确概括了课文核心观点,符合单元教学目标。2.Intheunit"ProtectingtheEnvironment",whichsentencebestdescribestheauthor'sattitudetowardplasticwaste?Theauthorbelievesthat______.A.PlasticwasteisnecessaryformodernlifebecauseitischeapandconvenientB.PlasticwasteshouldbecompletelybannedbecauseitharmstheenvironmentC.PlasticwastecanbemanagedeffectivelybyimprovingrecyclingsystemsD.Plasticwasteisaminorproblemcomparedtootherenvironmentalissues参考答案:C解析:本题考查对课文细节的理解。文中明确提到"Improvingrecyclingsystemscanreduceplasticwaste",并列举了具体措施如"designingproductsthatareeasiertorecycle"。选项A与课文观点相反,选项B过于绝对,选项D未提及。选项C准确反映课文提出的解决方案,体现作者务实态度。3.Accordingtothereadingpassage"ProtectingtheEnvironment",whichcountryismentionedashavingthehighestrecyclingrate?Thepassagestatesthat______.A.ChinahasthehighestrecyclingrateintheworldB.Swedenrecyclesmorethan90%ofitswasteC.TheUnitedStatesistheleaderinenvironmentalprotectiontechnologyD.Japanfocusesonlyonrecyclingplasticbottles参考答案:B解析:本题考查对课文具体数据的掌握。文中引用数据说明"Swedenrecyclesmorethan90%ofitshouseholdwaste",并对比其他国家。选项A、C、D均与课文信息不符。选项B准确反映课文内容,符合单元知识点。4.Intheunit"ProtectingtheEnvironment",whatisthebesttitleforthesection"HowtoReduceCarbonFootprint"?Thesectionmainlysuggests______.A.BuyingmorecarstoreducecarbonfootprintB.UsingpublictransportationandcyclinginsteadofdrivingC.IncreasingtheuseoffossilfuelstoimproveenergyefficiencyD.Plantingtreesonlyinurbanareas参考答案:B解析:本题考查对课文段落结构的理解。该部分明确建议"takingpublictransportationorcyclingcansignificantlyreducecarbonfootprint",并列举了具体例子。选项A、C与环保目标相反,选项D过于局限。选项B准确概括课文核心建议。5.Accordingtothepassage"ProtectingtheEnvironment",whatisthebiggestchallengeinreducingplasticwaste?Thetextsuggeststhat______.A.PeopledonothaveenoughmoneytobuyrecyclingbinsB.MostplasticwasteisnotproperlydisposedofbecauseoflackofinfrastructureC.Companiesdonotwanttoinvestineco-friendlypackagingD.Governmentsdonothaveenoughlawstoprotecttheenvironment参考答案:B解析:本题考查对课文难点分析的理解。文中提到"Manydevelopingcountrieslacktheinfrastructuretohandleplasticwasteproperly",并指出"poorwastemanagementsystemsareamajorproblem"。选项A、C、D未在课文中提及。选项B准确反映课文观点。6.Intheunit"ProtectingtheEnvironment",whatdoesthepassage"TheImportanceofBiodiversity"emphasize?Thetexthighlightsthat______.A.BiodiversityisonlyimportantintropicalrainforestsB.ProtectingendangeredspeciesismoreimportantthanprotectingecosystemsC.BiodiversitylossaffectshumanhealthandfoodsecurityD.Biodiversityisnotaseriousissuebecauseitisslowtochange参考答案:C解析:本题考查对课文核心论点的理解。文中明确指出"Lossofbiodiversitycanleadtofewercropsanddiseasesspreadingmoreeasily",并解释了生态平衡对人类生存的影响。选项A、B、D与课文观点不符。选项C准确概括课文主旨。7.Accordingtothereadingpassage"ProtectingtheEnvironment",whatisthebestwaytoteachchildrenaboutenvironmentalprotection?Thepassagesuggeststhat______.A.ForcingchildrentostudyenvironmentalscienceeverydayB.EncouragingthemtoparticipateinpracticalactivitieslikeplantingtreesC.PunishingthemforlitteringtomakethemunderstandtheconsequencesD.Showingthemonlyvideosaboutenvironmentaldisasters参考答案:B解析:本题考查对课文教学方法的理解。文中提倡"practicalactivitieslikeschoolgardensorrecyclingprogramshelpchildrenlearnbetter",并强调"doingismoreeffectivethanjusttalking"。选项A、C、D未在课文中提及。选项B准确反映课文建议。8.Intheunit"ProtectingtheEnvironment",whatisthemaindifferencebetweenrenewableandnon-renewableenergysources?Thepassageexplainsthat______.A.Renewableenergyismoreexpensivethannon-renewableenergyB.RenewableenergycomesfromnaturalsourcesandcanbereplenishedC.Non-renewableenergyisbetterbecauseitisalreadywidelyusedD.Renewableenergyproducesmorepollutionthannon-renewableenergy参考答案:B解析:本题考查对课文概念对比的理解。文中明确区分"renewableenergylikesolarandwindcanbeusedagainandagain",而"non-renewableenergylikecoalandoilwillrunout"。选项A、C、D与课文观点相反。选项B准确概括课文核心概念。9.Accordingtothepassage"ProtectingtheEnvironment",whatisthebiggestthreattocoralreefs?Thetextstatesthat______.A.OverfishingisthemainproblemaffectingcoralreefsB.PollutionfromfactoriesisthemostseriousthreatC.ClimatechangecausescoralbleachinganddeathD.Touristsarenotallowedtoswimnearcoralreefs参考答案:C解析:本题考查对课文具体问题的理解。文中详细解释"risingwatertemperaturesduetoclimatechangecausecoralbleaching",并指出这是"thebiggestdangertocoralreefstoday"。选项A、B、D未在课文中提及。选项C准确反映课文观点。10.Intheunit"ProtectingtheEnvironment",whatisthebestwaytoreduceairpollutionincities?Thepassagesuggeststhat______.A.BuildingmorehighwaystoreducetrafficcongestionB.EncouragingtheuseofelectricvehiclesandpublictransportationC.IncreasingthenumberofcarsontheroadtoimprovetrafficflowD.Forcingallfactoriestoclosetoreducepollution参考答案:B解析:本题考查对课文解决方案的理解。文中明确建议"electricvehiclesandpublictransportationcanreduceairpollution",并列举了具体案例。选项A、C与环保目标相反,选项D过于极端。选项B准确反映课文建议。二、填空题(总共10题,每题2分,共20分)1.Accordingtothepassage"ProtectingtheEnvironment",recyclingpapercan______.___________参考答案:savetreesandenergy解析:本题考查课文细节填空。文中明确提到"Recyclingpapercansavetreesandenergy",这是课文核心知识点之一。2.Intheunit"ProtectingtheEnvironment",thepassage"TheImportanceofBiodiversity"explainsthatbiodiversitylosscanleadto______.___________参考答案:fewercropsanddiseasesspreadingmoreeasily解析:本题考查课文论点填空。文中指出"Lossofbiodiversitycanleadtofewercropsanddiseasesspreadingmoreeasily",这是课文重要论据。3.Accordingtothereadingpassage"ProtectingtheEnvironment",thebestwaytoreduceplasticwasteisto______.___________参考答案:improverecyclingsystems解析:本题考查课文解决方案填空。文中明确建议"Improvingrecyclingsystemscanreduceplasticwaste",这是课文核心建议。4.Intheunit"ProtectingtheEnvironment",thepassage"HowtoReduceCarbonFootprint"suggeststhatusingpublictransportationcan______.___________参考答案:significantlyreducecarbonfootprint解析:本题考查课文细节填空。文中提到"takingpublictransportationorcyclingcansignificantlyreducecarbonfootprint",这是课文重要信息。5.Accordingtothepassage"ProtectingtheEnvironment",thebiggestchallengeinreducingcarbonfootprintis______.___________参考答案:lackofinfrastructureindevelopingcountries解析:本题考查课文难点分析填空。文中指出"Manydevelopingcountrieslacktheinfrastructuretohandlecarbonemissionsproperly",这是课文核心问题。6.Intheunit"ProtectingtheEnvironment",thepassage"TheImportanceofBiodiversity"explainsthatprotectingbiodiversityisimportantbecauseitaffects______.___________参考答案:humanhealthandfoodsecurity解析:本题考查课文论点填空。文中指出"Protectingbiodiversityisimportantbecauseitaffectshumanhealthandfoodsecurity",这是课文核心论据。7.Accordingtothereadingpassage"ProtectingtheEnvironment",thebestwaytoteachchildrenaboutenvironmentalprotectionisto______.___________参考答案:encouragethemtoparticipateinpracticalactivities解析:本题考查课文教学方法填空。文中提倡"practicalactivitieslikeplantingtreeshelpchildrenlearnbetter",这是课文核心建议。8.Intheunit"ProtectingtheEnvironment",thepassage"RenewableandNon-RenewableEnergy"explainsthatrenewableenergy______.___________参考答案:comesfromnaturalsourcesandcanbereplenished解析:本题考查课文概念对比填空。文中明确区分"renewableenergycomesfromnaturalsourcesandcanbereplenished",这是课文核心概念。9.Accordingtothepassage"ProtectingtheEnvironment",thebiggestthreattocoralreefsis______.___________参考答案:climatechangecausescoralbleaching解析:本题考查课文具体问题填空。文中详细解释"climatechangecausescoralbleachinganddeath",这是课文核心问题。10.Intheunit"ProtectingtheEnvironment",thepassage"HowtoReduceAirPollution"suggeststhatelectricvehiclescan______.___________参考答案:reduceairpollution解析:本题考查课文解决方案填空。文中明确建议"electricvehiclescanreduceairpollution",这是课文核心建议。三、判断题(总共10题,每题2分,共20分)1.Accordingtothepassage"ProtectingtheEnvironment",recyclingglassismoreimportantthanrecyclingpaperbecauseglasscanbereusedmoretimes.___________参考答案:False解析:本题考查对课文细节的判断。文中未比较玻璃和纸张的回收价值,而是强调"bothpaperandglassareimportanttorecycle"。该说法与课文不符。2.Intheunit"ProtectingtheEnvironment",thepassage"TheImportanceofBiodiversity"statesthatbiodiversitylosshasnoimpactonhumanhealth.___________参考答案:False解析:本题考查对课文论点的判断。文中明确指出"Lossofbiodiversitycanleadtofewercropsanddiseasesspreadingmoreeasily",说明对人类健康有影响。该说法与课文相反。3.Accordingtothereadingpassage"ProtectingtheEnvironment",thebestwaytoreduceplasticwasteistobanallplasticproducts.___________参考答案:False解析:本题考查对课文解决方案的判断。文中建议"improvingrecyclingsystems"而非完全禁止塑料,该说法过于极端。4.Intheunit"ProtectingtheEnvironment",thepassage"HowtoReduceCarbonFootprint"suggeststhatdrivingcarsisthebestwaytoreducecarbonfootprint.___________参考答案:False解析:本题考查对课文建议的判断。文中明确反对开车,建议"takingpublictransportationorcyclingcansignificantlyreducecarbonfootprint",该说法与课文相反。5.Accordingtothepassage"ProtectingtheEnvironment",thebiggestchallengeinreducingcarbonfootprintisthatpeopledonotcareabouttheenvironment.___________参考答案:False解析:本题考查对课文难点的判断。文中指出"lackofinfrastructureindevelopingcountries"是主要问题,而非人们不在乎,该说法与课文不符。6.Intheunit"ProtectingtheEnvironment",thepassage"TheImportanceofBiodiversity"explainsthatbiodiversityisonlyimportantinrichcountries.___________参考答案:False解析:本题考查对课文论点的判断。文中强调"biodiversityisimportanteverywhere",说明不仅限于富国,该说法与课文相反。7.Accordingtothereadingpassage"ProtectingtheEnvironment",thebestwaytoteachchildrenaboutenvironmentalprotectionistoforcethemtostudyenvironmentalscienceeveryday.___________参考答案:False解析:本题考查对课文教学方法的判断。文中提倡"practicalactivities"而非强制学习,该说法与课文不符。8.Intheunit"ProtectingtheEnvironment",thepassage"RenewableandNon-RenewableEnergy"statesthatnon-renewableenergyisbetterbecauseitisalreadywidelyused.___________参考答案:False解析:本题考查对课文概念对比的判断。文中未比较两者优劣,而是解释"non-renewableenergywillrunout",该说法与课文不符。9.Accordingtothepassage"ProtectingtheEnvironment",thebiggestthreattocoralreefsisoverfishing.___________参考答案:False解析:本题考查对课文具体问题的判断。文中指出"climatechangecausescoralbleaching",而非过度捕鱼,该说法与课文不符。10.Intheunit"ProtectingtheEnvironment",thepassage"HowtoReduceAirPollution"suggeststhatbuildingmorehighwaysisthebestwaytoreducetrafficpollution.___________参考答案:False解析:本题考查对课文建议的判断。文中反对建更多公路,建议"electricvehiclesandpublictransportation",该说法与课文相反。四、简答题(总共8题,每题2分,共16分)1.Accordingtotheunit"ProtectingtheEnvironment",whatarethreewaystoreduceplasticwaste?Explaineachbriefly.___________参考答案:-Improverecyclingsystems:Betterrecyclingbinsandfacilitiescanhelpmoreplasticbereused.-Usereusablebags:Insteadofdisposableplasticbags,peoplecanuseclothormetalbags.-Reduceplasticuse:Buyingproductswithlessplasticpackagingcanalsohelp.解析:本题考查对课文解决方案的总结能力。文中提到多种减少塑料的方法,学生需准确列举并简要解释。2.Intheunit"ProtectingtheEnvironment",whyisbiodiversityimportantforecosystems?Explaininyourownwords.___________参考答案:Biodiversityisimportantbecausedifferentspeciesworktogetherinecosystems.Ifonespeciesdisappears,othersmaybeaffected,andtheecosystemcanweaken.解析:本题考查对课文论点的理解能力。学生需解释生物多样性对生态系统的意义,体现对课文核心概念的理解。3.Accordingtotheunit"ProtectingtheEnvironment",whatisthedifferencebetweenrenewableandnon-renewableenergysources?___________参考答案:-Renewableenergycomesfromnaturalsources(likesolarorwind)andcanbeusedagainandagain.-Non-renewableenergycomesfromfossilfuels(likecoaloroil)andwillrunout.解析:本题考查对课文概念对比的总结能力。学生需准确区分两种能源的特点。4.Intheunit"ProtectingtheEnvironment",howcanschoolsteachstudentsaboutenvironmentalprotection?Suggesttwomethods.___________参考答案:-Schoolgardens:Studentscanplantvegetablesandlearnaboutnature.-Recyclingprograms:Schoolscansetuprecyclingbinsandteachstudentstosortwaste.解析:本题考查对课文教学方法的拓展能力。学生需结合课文建议提出实际方法。5.Accordingtotheunit"ProtectingtheEnvironment",whatisthebiggestthreattocoralreefs?Howcanwesolvethisproblem?___________参考答案:-Threat:Climatechangecausescoralbleaching.-Solution:Reduceglobalwarmingbyusinglessfossilfuelsandprotectingforests.解析:本题考查对课文具体问题的分析和解决方案能力。学生需准确指出问题并提出合理建议。6.Intheunit"ProtectingtheEnvironment",whyisrecyclingpaperimportant?Explaininyourownwords.___________参考答案:Recyclingpapersavestreesandenergy.Fewertreesmeanlessoxygen,andlessenergyusehelpsprotecttheenvironment.解析:本题考查对课文细节的理解和表达能力。学生需解释回收纸张的意义。7.Accordingtotheunit"ProtectingtheEnvironment",whataretwowaystoreducecarbonfootprint?___________参考答案:-Usepublictransportation:Takingbusesortrainsinsteadofcarsreducespollution.-Planttrees:Treesabsorbcarbondioxideandhelpreduceglobalwarming.解析:本题考查对课文解决方案的总结能力。学生需准确列举并简要解释。8.Intheunit"ProtectingtheEnvironment",howcanindividualshelpprotectbiodiversity?Suggestoneway.___________参考答案:Individualscanhelpbysupportingconservationorganizationsoravoidingproductsthatharmwildlife(likeproductsmadefromendangeredanimals).解析:本题考查对课文拓展知识的运用能力。学生需提出实际可行的保护生物多样性的方法。五、应用题(总共8题,每题4分,共24分)1.SupposeyouareastudentinaschoolinSichuan,China.Yourschoolwantstostartarecyclingprogrambutdoesnotknowhowtobegin.Writeashortparagraph(about50words)suggestingtwowaystostarttheprogram.___________参考答案:First,wecansetuprecyclingbinsineveryclassroomandteachstudentshowtosortwaste.Second,wecanholdarecyclingcompetitiontoencouragemorestudentstoparticipate.解析:本题考查实际应用能力。学生需结合课文建议,提出具体可行的方案。评分标准:方案合理(2分)、表达清晰(2分)。2.Imagineyouarewritinganarticleforalocalnewspaperaboutprotectingtheenvironment.Accordingtotheunit"ProtectingtheEnvironment",whatarethreekeypointsyouwouldincludeinyourarticle?___________参考答案:-Recycling:Explainhowrecyclinghelpssaveresources.-Biodiversity:Discusswhyprotectingdifferentspeciesisimportant.-Individualactions:Suggestsimplethingspeoplecandoeveryday(likereducingplasticuse).解析:本题考查知识整合能力。学生需结合课文核心知识点,提出有逻辑的论点。评分标准:论点全面(2分)、表达流畅(2分)。3.Yourfrienddoesnotbelievethatrecyclingisimportantbecausehethinksittakestoomuchtime.Writeashortparagraph(about50words)explainingwhyrecyclingisworthdoing.___________参考答案:Recyclingsavesenergyandreducespollution.Italsohelpsprotectnatureforfuturegenerations.Evenifittakesalittletime,itmakesabigdifference.解析:本题考查说服能力。学生需结合课文论点,用简洁的语言说明回收的重要性。评分标准:论据充分(2分)、表达有说服力(2分)。4.Supposeyourcitywantstoreduceairpollution.Accordingtotheunit"ProtectingtheEnvironment",whataretwosuggestionsyouwouldmaketothecitygovernment?___________参考答案:-Promoteelectricvehicles:Offersubsidiesforpeopletobuyelectriccars.-Plantmoretrees:Treesabsorbpollutionandimproveairquality.解析:本题考查实际问题解决能力。学生需结合课文建议,提出合理且可行的方案。评分标准:方案合理(2分)、表达清晰(2分)。5.ImagineyouareateacherinahighschoolinSichuan.Youwanttoteachyourstudentsaboutbiodiversity.Writeashortparagraph(about50words)describingoneactivityyoucoulduseinclass.___________参考答案:Icanshowstudentspicturesofdifferentecosystemsandaskthemtodiscusshoweachoneworks.Thishelpsthemunderstandwhybiodiversityisimportant.解析:本题考查教学方法设计能力。学生需结合课文内容,设计一个实际的教学活动。评分标准:活动合理(2分)、表达清晰(2分)。6.YourfamilyisplanningatriptoanationalparkinSichuan.Accordingtotheunit"ProtectingtheEnvironment",whataretwothingsyouwouldtellyourfamilytodotoprotectthepark?___________参考答案:-Donotpickplantsoranimals:Natureshouldstaynatural.-Followparkrules:Stayontrailsanddonotleavetrash.解析:本题考查实际行为指导能力。学生需结合课文建议,提出保护自然环境的具体做法。评分标准:建议合理(2分)、表达清晰(2分)。7.Supposeyouarewritingalettertoyourlocalgovernmentaboutplasticwaste.Accordingtotheunit"ProtectingtheEnvironment",whataretwosolutionsyouwouldsuggest?___________参考答案:-Improverecyclingbins:Makemorerecyclingbinsavailable.-Bansingle-useplastics:Encouragereusablebagsinsteadofplasticones.解析:本题考查政策建议能力。学生需结合课文内容,提出解决塑料污染的具体方案。评分标准:方案合理(2分)、表达清晰(2分)。8.ImagineyouareastudentinaschoolinSichuan.Yourschoolwantstoreduceitscarbonfootprint.Writeashortparagraph(about50words)suggestingonewaytheschoolcoulddothis.___________参考答案:Theschoolcouldinstallsolarpanelsontherooftousesolarenergy.Thiswouldreducetheuseoffossilfuelsandhelpprotecttheenvironment.解析:本题考查实际问题解决能力。学生需结合课文建议,提出减少碳排放的具体方案。评分标准:方案合理(2分)、表达清晰(2分)。【标准答案及解析】一、单项选择题1.B2.C3.B4.B5.B6.C7.B8.B9.C10.B二、填空题1.savetreesandenergy2.fewercropsanddiseasesspreadingmoreeasily3.improverecyclingsystems4.significantlyreducecarbonfootprint5.lackofinfrastructureindevelopingcountries6.humanhealthandfoodsecurity7.encouragethemtoparticipateinpracticalactivities8.comesfromnaturalsourcesandcanbereplenished9.climatechangecausescoralbleaching10.reduceairpollution三、判断题1.False2.False3.False4.False5.False6.False7.False8.False9.False10.False四、简答题1.参考答案:-Improverecyclingsystems:Betterrecyclingbinsandfacilitiescanhelpmoreplasticbereused.-Usereusablebags:Insteadofdisposableplasticbags,peoplecanuseclothormetalbags.-Reduceplasticuse:Buyingproductswithlessplasticpackagingcanalsohelp.解析:本题考查对课文解决方案的总结能力。文中提到多种减少塑料的方法,学生需准确列举并简要解释。2.参考答案:Biodiversityisimportantbecausedifferentspeciesworktogetherinecosystems.Ifonespeciesdisappears,othersmaybeaffected,andtheecosystemcanweaken.解析:本题考查对课文论点的理解能力。学生需解释生物多样性对生态系统的意义,体现对课文核心概念的理解。3.参考答案:-Renewableenergycomesfromnaturalsources(likesolarorwind)andcanbeusedagainandagain.-Non-renewableenergycomesfromfossilfuels(likecoaloroil)andwillrunout.解析:本题考查对课文概念对比的总结能力。学生需准确区分两种能源的特点。4.参考答案:-Schoolgardens:Studentscanplantvegetablesandlearnaboutnature.-Recyclingprograms:Schoolscansetuprecyclingbinsandteachstudentstosortwaste.解析:本题考查对课文教学方法的拓展能力。学生需结合课文建议提出实际方法。5.参考答案:-Threat:Climatechangecausescoralbleaching.-Solution:Reduceglobalwarmingbyusinglessfossilfuelsandprotectingforests.解析:本题考查对课文具体问题的分析和解决方案能力。学生需准确指出问题并提出合理建议。6.参考答案:Recyclingsavesenergyandreducespollution.Italsohelpsprotectnatureforfuturegenerations.Evenifittakesalittletime,itmakesabigdifference.解析:本题考查对课文细节的理解和表达能力。学生需解释回收纸张的意义。7.参考答案:-Usepublictransportation:Takingbusesortrainsinsteadofcarsre

温馨提示

  • 1. 本站所有资源如无特殊说明,都需要本地电脑安装OFFICE2007和PDF阅读器。图纸软件为CAD,CAXA,PROE,UG,SolidWorks等.压缩文件请下载最新的WinRAR软件解压。
  • 2. 本站的文档不包含任何第三方提供的附件图纸等,如果需要附件,请联系上传者。文件的所有权益归上传用户所有。
  • 3. 本站RAR压缩包中若带图纸,网页内容里面会有图纸预览,若没有图纸预览就没有图纸。
  • 4. 未经权益所有人同意不得将文件中的内容挪作商业或盈利用途。
  • 5. 人人文库网仅提供信息存储空间,仅对用户上传内容的表现方式做保护处理,对用户上传分享的文档内容本身不做任何修改或编辑,并不能对任何下载内容负责。
  • 6. 下载文件中如有侵权或不适当内容,请与我们联系,我们立即纠正。
  • 7. 本站不保证下载资源的准确性、安全性和完整性, 同时也不承担用户因使用这些下载资源对自己和他人造成任何形式的伤害或损失。

评论

0/150

提交评论