【新教材】2026年秋人教版九年级下册英语Unit 4 Reduce,Reuse,Recycle单元写作提升指导+练习题汇编（含答案+范文）

第第页【新教材】2026年秋人教版九年级下册英语Unit4Reduce,Reuse,Recycle单元写作提升指导+练习题汇编一、命题与考点说明常考文体：倡议书、议论文。写作要素：环境问题与现状、减少浪费的方法、资源循环利用的意义。写作语法：情态动词的被动语态、条件状语从句。二、范文与考点题目：HowtoReduceWasteWastehasbecomeoneofthemostseriousenvironmentalproblemstoday.Everyday,largeamountsofplasticandfoodwastearethrownawaywithoutpropertreatment.Ifwedonottakeaction,ourplanetwillbecomemorepolluted.Therearemanysimplethingswecandotoreducewaste.Firstly,plasticwasteshouldbereducedtoprotectourenvironment.Weshouldusereusablewaterbottlesinsteadofbuyingbottledwater.Secondly,wecanbringourownshoppingbagswhenwegotothesupermarket.Thirdly,wastepaperandplasticshouldbeseparatedandrecycledinsteadofbeingthrownintothesamebin.Ibelievethateverysmalleffortcanmakeadifference.Ifeveryonestartstakingtheseactions,wecancreateahealthierplanetforourselvesandforfuturegenerations.Reducingwasteisnotdifficult—itjustrequiresustochangeourhabits.原文考点...largeamountsofplasticandfoodwastearethrownaway...一般现在时被动语态Ifwedonottakeaction,ourplanetwillbecome...if条件状语从句，主将从现Plasticwasteshouldbereducedtoprotectourenvironment.情态动词被动语态（shouldbedone）...wastepaperandplasticshouldbeseparatedandrecycled...情态动词被动语态（shouldbedone）Wecanstartbyusingreusablebags...by+动名词表方式Ifeveryonestartstakingtheseactions,wecancreate...if条件状语从句行文思路写"环保"类倡议书，要有明确的号召力。开头指出问题的严重性，让读者意识到紧迫感。主体部分提出具体可行的措施，按逻辑顺序排列（由易到难或由主到次），每个措施都要简洁明了。结尾发出呼吁，强调"人人有责"和"小事不小"的理念。语气要有感召力，但不能空洞。易错提示本单元涉及情态动词被动语态和条件状语从句，易错点在以下方面：情态动词被动语态的结构。情态动词+be+过去分词。【典型错误】Plasticwasteshouldreduced.→应改为Plasticwasteshouldbereduced.（缺be动词）条件状语从句的主将从现。if从句用一般现在时，主句用一般将来时或情态动词+动词原形。【典型错误】Ifwewillnottakeaction,ourplanetwillbecomepolluted.→应改为Ifwedonottakeaction,ourplanetwillbecomepolluted.by+动名词的用法。by在这里表示"通过……方式"，后接动名词。【典型错误】Wecanstartbyusereusablebags.→应改为Wecanstartbyusingreusablebags.三、同话题变式范文变式1倡议书（减少塑料使用）Dearfellowstudents,Ourschoolisproducingalargeamountofwasteeveryday.Plasticbottlesandbagscanbeseeneverywhereoncampus.Theseitemswillnotbreakdownnaturallyforhundredsofyears.Wemusttakeactiontoreducewaste.Firstly,weshouldusereusablewaterbottlesinsteadofbuyingbottledwater.Secondly,wecanbringourownshoppingbagswhenwebuythings.Thirdly,wastepaperandplasticshouldbeseparatedandrecycled.Ifeveryonemakesasmalleffort,wecanmakeourschoolcleanerandgreener.Let'sstarttoday!变式2议论文段（论减少浪费的意义）Wasteisoneofthebiggestproblemswefacetoday.Everyday,hugeamountsoffoodarethrownaway,andtonsofplasticendupintheoceans.Theseproblemscanbesolvedifwechangeourhabits.Wecanstartbybuyingonlywhatweneedandusingthingsmorecarefully.Oldclothesandtoyscanbedonatedinsteadofthrownaway.Ibelievethateverysmallactioncounts.Ifweallworktogether,wecanmakearealdifference.四、词句积累（一）基础→进阶throwaway→disposeof,discardprotect→preserve,conserve,safeguarduse→utilize（强调有效利用资源，如utilizesolarenergy），makeuseof（强调充分利用，如makeuseofeveryopportunity）harmful→damaging,destructivewaste→rubbish,garbage,litterreduce→cutdown,minimize（二）单元实用句式...shouldbereducedto...（情态动词被动语态提出建议）Ifeveryone...,wecan...（条件状语从句）...canberecycledinto...（被动语态描述循环利用）Wecanstartby...（by+动名词）Everysmallactioncounts.（总结强调）（三）句式变化示例原始：Wemustreducewaste.→升级：Itishightimethatwetookactiontoreducethewasteweproduceeveryday.（Itishightimethat+过去时虚拟语气）原始：Recyclinghelpstheenvironment.→升级：Onlybyrecyclingcanwereducetheamountofwastethatendsupinouroceans.（only+状语置于句首，部分倒装）五、分层练习练习1用所给词的适当形式填空Ourplanet____________(face)seriousenvironmentalproblems.Plasticwasteshould____________(reduce)toprotectmarinelife.Ifeveryone____________(recycle)theirwaste,wecansavealotofresources.Usedpapercan____________(recycle)intonewpaperproducts.Wecanstartby____________(use)reusablebagsinsteadofplasticones.Itiseveryone'sresponsibility____________(take)careofourenvironment.练习2将下列主动语态改为被动语态（含情态动词）Weshouldreduceplasticwaste.Peoplecanrecycleusedpaper.Wemustseparatewastepaperandplastic.Peopleshouldnotthrowawayoldclothes.练习3单句翻译塑料垃圾应该被减少以保护海洋生物。如果我们每个人都回收利用废物，我们就可以节省很多资源。我们可以从使用可重复使用的袋子开始。每一个小小的行动都很重要。练习4写作训练题目：HowtoReduceWaste写作要点：①我们面临什么浪费问题；②我们可以采取什么措施；③为什么这些措施重要参考答案练习11.isfacing2.bereduced3.recycles4.berecycled5.using6.totake练习2Plasticwasteshouldbereduced.Usedpapercanberecycled.Wastepaperandplasticmustbeseparated.Oldclothesshouldnotbethrownaway.练习3Plasticwasteshouldbereducedtoprotectmarinelife.Ifeveryonerecyclestheirwaste,wecansavealotofresources.Wecanstartbyusingreusablebags.Everysmallactioncounts.练习4参考范文Wastehasbecomeoneofthemostseriousenvironmentalproblemstoday.Everyday,largeamountsofplasticandfoodwastearethrownawaywithoutpropertreatment.Ifwedonottakeaction,ourplanetwillbecomemorepolluted.Therearemanysimplethingswecandotoreducewaste.Forexample,weshouldusereusablewaterbottlesinsteadofbuyingbottledwater.Wecanalsobringourownshoppingbagswhenwegotothesupermarket.Inaddition,wastepaperandplasticshouldbeseparatedandrecycledi