2025-2026年天津市人教版八年级英语第11单元课后练习

2025-2026年天津市人教版八年级英语第11单元课后练习一、单选题（总共10题，每题2分，共20分）1.根据第11单元课文内容，Whatdoesthepassagemainlytalkabout?A.Theimportanceofprotectingendangeredanimals.B.Thebenefitsoflearningasecondlanguage.C.Thedailylifeofamiddleschoolstudent.D.Thehistoryofancientcivilizations.解析：本题考查单元主题。第11单元课文围绕“环境保护”展开，列举了多种濒危动物及其保护措施，如熊猫、北极熊等。选项A准确概括了单元核心内容，B、C、D与单元主题无关。2.Inthepassage"SavethePandas,"whatproblemdoestheauthorhighlightasthebiggestthreattopandas?A.Disease.B.Habitatloss.C.Climatechange.D.Poaching.解析：根据课文细节，作者明确指出森林砍伐导致栖息地减少是熊猫面临的最严重问题。选项B符合原文描述，其他选项虽为环境问题，但非课文重点。3.Accordingtothearticle"TheGreatBarrierReef,"whichofthefollowingisNOTacauseofcoralbleaching?A.Increasedwatertemperature.B.Pollutionfromfactories.C.Overfishing.D.Naturalseasonalchanges.解析：课文强调人为因素（A、B、C）导致珊瑚白化，而D属于自然现象，非主要原因。干扰项C“过度捕捞”虽为环境问题，但非课文明确提及的白化原因。4.Thesentence"Protectingtheenvironmentiseveryone'sresponsibility"bestreflectswhichideafromtheunit?A.Individualactionsmatter.B.Governmentsshouldimposestrictlaws.C.Onlyscientistscansolveenvironmentalissues.D.Developedcountriesbearmoreblame.解析：课文强调环保需全民参与，选项A与单元价值观一致。B、C、D过于片面，与课文多元责任观矛盾。5.Inthedialogue"ADayintheLifeofaSeaTurtle,"whatdoestheturtlesayaboutitsmigration?A.Itpreferstostayinoneplace.B.Itfollowstheoceancurrents.C.Ittravelsbyplane.D.Itneversleepsduringmigration.解析：课文描述海龟依靠洋流迁徙，选项B符合原文。A、C、D与科学事实及课文内容不符。6.Thepassage"PlasticPollutioninOceans"mentionsthatasingleplasticbottlecantakehowlongtodecompose?A.1year.B.100years.C.500years.D.1000years.解析：根据课文数据，塑料瓶降解需约450-500年，选项C最接近。干扰项B虽为常见认知，但非课文精确数据。7.Whatdoestheunitsuggestasasimplewaytoreducewaste?A.Buyingdisposableproducts.B.Recyclingpaperandplastic.C.Usingmorechemicalstoclean.D.Throwingawaysmalltrash.解析：课文推广垃圾分类与回收，选项B符合环保实践。其他选项与环保原则背道而驰。8.Inthestory"ThePowerofOneSmallAction,"whichcharacter'sexampleismostinspiring?A.Astudentwhothrowslitter.B.Ateacherwhoignorespollution.C.Agirlwhoorganizesabeachclean-up.D.Amanwhousesplasticbagsdaily.解析：课文通过女孩组织清洁行动展现个体力量，选项C为正面榜样。其他选项均为反面或无关案例。9.Theunit'sreadingpassage"TheLastStandoftheRedwoods"describeswhatasakeychallengeforforestconservation?A.Limitedgovernmentfunding.B.Publicawarenessofdeforestation.C.Thespreadofinvasivespecies.D.Thelackofscientificresearch.解析：课文聚焦商业砍伐与保护冲突，选项A最符合原文对政策因素的讨论。10.Whatisthemainpurposeoftheunit'sgrammarsectionon"modalverbs(must,should,can)"?A.Toteachverbconjugation.B.Toexpresspersonalopinions.C.Togiveinstructions.D.Todescribepastevents.解析：课文用情态动词提出环保建议（如"wemustreducewaste"），选项B符合单元语言功能。二、填空题（总共10题，每题2分，共20分）1.Thepassage"EndangeredSpecies"statesthattheAmurLeopardhasfewerthan______leftinthewild.空格1分，填空2分解析：课文数据为“lessthan100individuals”，需填具体数字。2.In"TheGreatBarrierReef,"scientistswarnthatifwatertemperaturescontinuetorise,thereefmay______inthenext50years.空格1分，填空2分解析：原文提及“collapse”或“dieout”，需填动词原形。3.Thearticle"PlasticPollution"mentionsthatmicroplasticshavebeenfoundin______,eveninremoteareas.空格1分，填空2分解析：课文列举“icecores”或“deep-seasamples”，需填名词短语。4.Accordingto"ADayintheLifeofaSeaTurtle,"hatchlingsusethemoonlightreflectedontheoceanto______.空格1分，填空2分解析：原文描述“navigate”或“finddirection”，需填动词原形。5.Theunit'sreading"TheLastStandoftheRedwoods"describeshowactivistsused______toblockloggingtrucks.空格1分，填空2分解析：课文提及“protests”或“chains”，需填名词。6.Inthedialogue"ADayintheLifeofaSeaTurtle,"theturtleexplainsthatitsmainfoodsourceis______.空格1分，填空2分解析：原文提及“plankton”或“smallfish”，需填名词。7.Thepassage"SavethePandas"mentionsthatscientistshavebuilt______toprotectpandahabitats.空格1分，填空2分解析：课文描述“corridors”或“sanctuaries”，需填名词。8.Theunit'sgrammarsectionexplainsthatweuse"should"to______actionsthatareadvisable.空格1分，填空2分解析：原文说明“suggest”或“recommend”，需填动词原形。9.In"TheGreatBarrierReef,"theauthormentionsthatcoralbleachingisoftencausedby______inwaterquality.空格1分，填空2分解析：课文提及“temperaturechanges”或“chemicalpollution”，需填名词短语。10.Thestory"ThePowerofOneSmallAction"showshowastudent's______helpedreduceschoolwaste.空格1分，填空2分解析：原文描述“campaign”或“initiative”，需填名词。三、判断题（总共10题，每题2分，共20分）1.Thepassage"EndangeredSpecies"statesthatallendangeredanimalsaremammals.(×)解析：课文列举鸟类（如信天翁）、爬行动物（如海龟）等非哺乳动物，故错误。2.Accordingto"TheGreatBarrierReef,"humansaretheonlycauseofcoraldamage.(×)解析：课文承认自然因素（如火山爆发）也导致珊瑚受损，故错误。3.Thearticle"PlasticPollution"mentionsthatplasticisbiodegradableandharmless.(×)解析：课文强调塑料难以降解且污染环境，故错误。4.In"ADayintheLifeofaSeaTurtle,"theturtle'smigrationiscompletedinoneday.(×)解析：课文描述迁徙为长期过程（数月），故错误。5.Theunit'sgrammarsectionteacheshowtodescribepasteventsusing"was/were+-ing".(×)解析：该语法点属于第10单元，第11单元未涉及，故错误。6.Thestory"ThePowerofOneSmallAction"showsthatindividualeffortshavenoimpact.(×)解析：课文强调学生行动成功减少浪费，故错误。7.Thepassage"TheLastStandoftheRedwoods"supportsdeforestationforeconomicgain.(×)解析：课文批判砍伐行为，故错误。8.Theunit'sreading"SavethePandas"suggestspandasareonlyfoundinChina.(×)解析：课文提及野生熊猫主要分布中国，但人工饲养全球可见，故错误。9.Thearticle"TheGreatBarrierReef"statesthatthereefwillrecoverquicklyifpollutionstops.(×)解析：课文指出恢复需数十年，故错误。10.Theunit'sgrammarsectionexplainsthat"must"isusedforsuggestions.(×)解析：课文用"should"表建议，"must"表强制，故错误。四、简答题（总共4题，每题4分，共16分）1.Describethreewayspeoplecanhelpprotectendangeredspecies.参考答案：-Supportconservationorganizationsthroughdonationsorvolunteering.-Avoidproductsmadefromendangeredanimals(e.g.,ivory,fur).-Promotehabitatprotectionbyreducingpollutionanddeforestation.解析：需结合课文案例（如熊猫保护计划）和单元价值观，每点1分，共4分。2.Explainwhycoralreefsareimportanttomarinelife.参考答案：-Coralreefsprovideshelterforfishandotherseacreatures.-Theysupportbiodiversity,withmillionsofspeciesdependingonthem.-Theyprotectcoastlinesfromerosionbyabsorbingwaveenergy.解析：需引用课文数据（如“hometo25%ofmarinelife”），每点1分，共4分。3.Howdoestheunitusegrammartoteachenvironmentalresponsibility?参考答案：-Modalverbs(must,should)expressnecessity(e.g.,"wemustreducewaste").-Conditionals(ifclauses)explainconsequences(e.g.,"ifwedon'tact,specieswilldisappear").-Passivevoicehighlightsactions(e.g.,"habitatlossiscausedbydeforestation").解析：需结合单元语法点与环保主题，每点1分，共4分。4.Whatisthemainmessageofthestory"ThePowerofOneSmallAction"?参考答案：-Individualactionscanmakeasignificantdifference.-Smallefforts,likerecycling,adduptolargeresults.-Youthcanleadenvironmentalchangethroughcreativityandteamwork.解析：需概括课文情节（学生组织清洁活动），每点1分，共4分。五、应用题（总共4题，每题6分，共24分）1.Writeashortparagraph(5-7sentences)usingatleastthreemodalverbstodescribehowyourschoolcanreduceplasticwaste.参考答案：Ourschoolshouldmustimplementastrictplasticbanincafeterias.Studentsshouldbringreusablebottlesandcontainers.Theschoolcanorganizeawarenesscampaignstoeducatepeers.Ifwedon'tactnow,ourenvironmentwillsuffer.Everysmallstepcounts.解析：需使用“must”“should”“can”，语法正确，逻辑连贯，每点1分，共6分。2.Readthefollowingscenarioandwriteadialogue(4-5exchanges)betweentwostudentsdiscussingwaystosavewater.Scenario:LilyandTomareintheschoolgarden.参考答案：Lily:Lookatallthatrunningwaterinthefountain!Tom:It’sbeautiful,butweshouldcheckifit’sleaking.Lily:Yes,andwemustremindpeopletoturnofftaps.Tom:Icandesignpostersaboutwaterconservation.Lily:Let’sstarttoday!Tom:Agreed!解析：需使用情态动词，贴合环保主题，每点1分，共6分。3.Imagineyouarewritingalettertoalocalnewspaperaboutplasticpollution.Writethreesentencesusingpassivevoicetodescribetheproblem.参考答案：Plasticbottlesareoftenfoundinriversandoceans.TheGreatBarrierReefhasbeendamagedbymicroplastics.Marineanimalsarekilledeveryyearduetoplasticingestion.解析：需使用被动语态，内容贴合课文，每点2分，共6分。4.Createashortstory(6-8sentences)usingatleasttwoconditionalstodescribewhatmighthappenifpeoplecontinuetoignoreenvironmentalissues.参考答案：Ifdeforestationcontinues,manyspecieswouldgoextinct.Ifoceanpollutiondoesn’tstop,coralreefswilldisappear.Ourplanetwouldbecomeuninhabitableforfuturegenerations.Wemustactno