2026新教材仁爱科普版九年级上册英语Unit 3 A Green Earth,a Better Home暑假预习讲义

第第页2026新教材仁爱科普版九年级上册英语Unit3AGreenEarth,aBetterHome暑假预习讲义BigQuestion:Howcanyoubeagreenperson?📚重点词汇（含词族拓展）PreparingfortheTopicpollution/pollute/polluted/pəˈluːʃn///pəˈluːt/n./v./adj.pollutionn.污染；pollutev.污染；pollutedadj.受污染的词族拓展（超重点！）：pollute(v.污染)→pollution(n.污染，不可数)→polluted(adj.受污染的)

短语：air/water/noise/soilpollution空气/水/噪音/土壤污染causepollution造成污染preventpollution防止污染

例句对比：Factoriespollutetheriver.（工厂污染河流。）[动词]/Thepollutionisserious.（污染很严重。）[名词]/Thepollutedwaterisharmful.（受污染的水有害。）[形容词]Thepollutionhereisveryserious.（这里的污染很严重。）

Don'tpollutetheenvironment.（不要污染环境。）environmental/ɪnˌvaɪrənˈmentl/adj.自然环境的；与环境有关的词族拓展（重点！）：environ(v.环绕)→environment(n.环境)→environmental(adj.环境的)→environmentalist(n.环保主义者)

-al形容词后缀：nation→national；nature→natural；culture→cultural

短语：protecttheenvironment保护环境/environmentalprotection环境保护Weshouldprotectourenvironment.（我们应该保护环境。）

Environmentalprotectioniseveryone'sduty.（环保是每个人的责任。）recycle/ˌriːˈsaɪkl/v.回收利用，再利用词族拓展：re-(前缀，再)+cycle(循环)→recycle(v.回收利用)→recycling(n.回收利用)→recyclable(adj.可回收利用的)同根词：reuse（再利用）；reduce（减少）；recover（恢复）Weshouldrecyclewastepaperandplasticbottles.（我们应该回收废纸和塑料瓶。）donate/dəʊˈneɪt/v.捐赠，赠送donate(v.捐赠)→donation(n.捐赠物；捐款)→donor(n.捐赠者)

搭配：donatesth.to...把某物捐赠给……Hedonatedhisoldbookstothecharity.（他把旧书捐赠给了慈善机构。）ExploringtheTopicsuffer/ˈsʌfə(r)/v.（因疾病、痛苦等）受苦，受折磨；遭受suffer(v.遭受)→suffering(n.痛苦；苦难)

短语：sufferfrom...患（病）；受……之苦sufferaloss遭受损失sufferhunger挨饿Hesuffersfromhighbloodpressure.（他患有高血压。）

Theareasufferedaseriousfloodlastyear.（这个地区去年遭受了严重洪灾。）cooperate/kəʊˈɒpəreɪt/v.合作；协作cooperate(v.合作)→cooperation(n.合作)→cooperative(adj.合作的)

短语：cooperatewithsb.与某人合作incooperationwith与……合作Weshouldcooperatewitheachothertoprotecttheearth.（我们应该相互合作来保护地球。）

Thetwocountriesworkedinclosecooperation.（两国紧密合作。）WrappingUpcarbon/ˈkɑːbən/n.碳carbondioxide(CO₂)low-carbonlifecarbonfootprintWeshouldlivealow-carbonlifetoprotecttheearth.（我们应该过低碳生活来保护地球。）✏词汇配套练习📝练习一：用pollute的词族填空1The____(pollute)inthiscityisgettingworse.2Factories____(pollution)therivereveryday.3Manyfishdiedinthe____(pollute)water.4Weshouldtakeactiontostopair____(pollute).5The____(pollute)fromcarsisabigproblem.【参考答案】1.pollution（名词，污染）2.pollute（动词，污染）3.polluted（形容词，受污染的）4.pollution（名词）5.pollution（名词）📝练习二：用括号内词的适当形式填空1Weshouldtake____(act)toprotecttheenvironment.2His____(suffer)fromthediseaselastedforyears.3Thetwocompaniesdecidedto____(cooperative).4Hemadea____(donate)tothecharity.5Weneedtolivea____(low)carbonlife.【参考答案】1.action（takeaction采取行动）2.suffering3.cooperate4.donation5.low（固定搭配low-carbonlife）📝练习三：用environment/environmental/environmentalist填空1Weshouldprotectour____(环境).2Airpollutionisaserious____(环境的)problem.3Heisan____(环保主义者)andhasplantedthousandsoftrees.4Many____(环保主义者)areworkinghardtosavetheplanet.5Thefactorycaused____(环境的)damagetotheriver.【参考答案】1.environment（名词）2.environmental（形容词）3.environmentalist（单数名词）4.environmentalists（复数名词）5.environmental（形容词作定语）📝练习四：recycle词族与3R辨析1Weshould____(回收)wastepaperandplasticbottles.2Paper,glassandmetalare____(可回收的).4Waste____(回收利用)isimportantforenvironmentalprotection.5Don'tthrowawaythebottle.Youcan____(reuse)itasaflowerpot.6Weshould____(reduce)theuseofplasticbags.【参考答案】1.recycle（动词原形）2.recyclable（形容词）4.recycling（名词）5.reuse（动词原形）6.reduce（动词原形）📝练习五：sufferfrom/donateto/cooperatewith搭配1He________(患)highbloodpressureforyears.2She____________(捐赠了)allheroldclothes____thechildreninpoorareas.3Weshould________(与……合作)eachothertoprotecttheenvironment.4Thevillage________(遭受了)aseriousfloodlastyear.5Theoldman____________(捐钱给)theHopeProjecteveryyear.【参考答案】1.suffersfrom（一般现在时，主语he）2.donated...to（把衣服捐给……）3.cooperatewith（与……合作）4.sufferedfrom（一般过去时）5.donatesmoneyto（donatesth.to...）🔗重点短语（含详解）beharmfulto对……有危害用法讲解：to是介词，后接名词或动名词。

同义表达：doharmto...；bebadfor...

反义表达：begoodfor...；bebeneficialto...

•Smokingisharmfultoyourhealth.（吸烟有害健康。）takeaction采取行动用法讲解：action是名词，作可数或不可数。

搭配：takeactiontodosth.采取行动做某事

•Weshouldtakeactiontoprotecttheenvironment.（我们应该采取行动保护环境。）

同义：takemeasurestodosth.；takestepstodosth.put...atrisk将……置于危险之中用法讲解：atrisk=indanger，处于危险中。

•Pollutionputsourhealthatrisk.（污染使我们的健康处于危险中。）

搭配：atrisk处于危险中；runtheriskof冒……的风险protect...from...保护……免受……伤害用法讲解：from后接伤害的源头（名词或v-ing）。

同义：protect...against...

•Weshouldprotecttheearthfrombeingpolluted.（我们应该保护地球免受污染。）

•Sunglassesprotectoureyesfromthesun.（太阳镜保护我们的眼睛免受阳光伤害。）makeeffortstodosth.尽力去做某事用法讲解：effort是可数或不可数名词。

搭配：sparenoefforttodosth.不遗余力做某事；makeaneffort努力

•Weshouldmakeeffortstoreducepollution.（我们应该努力减少污染。）throwaway扔掉；wastesorting垃圾分类throwaway：及物动词短语，后接宾语。如果宾语是代词，必须放在中间：throwitaway（✓）；throwawayit（✗）。

wastesorting：sort作动词表示"分类；整理"。sortthewaste=进行垃圾分类。asaresult结果是；因此用法讲解：asaresult是副词短语，连接两个句子，表示"因此，结果是"。

辨析：asaresult（因此，连接词）；resultin（导致，动词短语）；resultfrom（由……引起）

•Heworkedhard.Asaresult,hepassedtheexam.（他学习努力，因此通过了考试。）✏短语配套练习📝练习一：根据中文提示完成短语1Smokingis____________（对……有害）yourhealth.2Weshould________toprotecttheenvironment.3Wemust____theearth________（保护……免受）pollution.4____________（总之）,weshouldlivealow-carbonlife.5Don't________（扔掉）theoldbooks.Youcandonatethem.6Pollution____ourhealth________（使……处于危险中）.7Weshould________________（努力做某事）reducewaste.8Heworkedhardeveryday.____________（因此）,hepassedtheexam.【参考答案】1.harmfulto/badfor2.takeaction3.protect;from4.Inaword/Inconclusion5.throwaway6.puts;atrisk7.makeeffortsto8.Asaresult📝练习二：完成下列句子，注意动词形式1Smokingis____（harm）toyourhealth.2Weshouldtakeactionto____（protect）theearthfrom____（pollute）.3Don'tthrow____（it）away.Youcanreuseit.（用代词填空）4Allofusshouldmake____（effort）tosavewater.5Thefactoryputthefish'slife____（risk）bydumpingwasteintotheriver.6Weshouldlearntosortthe____（waste）beforethrowingitaway.【参考答案】1.harmful（形容词）2.protect;beingpolluted（protect...from+动名词被动式）3.it（throwaway是及物动词短语，代词必须放中间）4.efforts（makeeffortstodo是复数搭配）5.atrisk（固定搭配）6.waste（不可数名词，无复数）📝练习三：英汉互译1垃圾分类对保护环境非常重要。2工厂把我们的健康置于危险之中。3我们应该努力减少污染。4Hewasabsentyesterday.Asaresult,hemissedtheimportantmeeting.5Inaword,weshouldprotecttheearthfrombeingpolluted.【参考答案】1.Wastesortingisveryimportantforprotectingtheenvironment.2.Thefactoriesputourhealthatrisk.3.Weshouldmakeeffortstoreducepollution.4.他昨天缺席了，因此错过了重要的会议。5.总之，我们应该保护地球免受污染。📐语法精讲+配套练习一、前缀re-（表示"再、重新"）加在动词前，表示"再次、重新"做某事。注意：re-前缀后的单词重音通常落在第二个音节：reCYCLE；reBUILD；reWRITE。二、现在完成时（二）—for&since的区别核心区别：for+时间段（aperiodoftime）；since+时间点（apointintime）易错点（超重要！）：

①since从句用一般过去时，主句用现在完成时：

✓IhavetaughtheresinceIgraduated.（毕业是过去，教学持续到现在）

②for+since不能混用：

✗Ihavelivedherefor2014.

✓Ihavelivedheresince2014./for10years.

③howlong提问时长：

—Howlonghaveyoubeenhere?—For2weeks./Sincelastmonth.Wehaven'tseenanywasteintheriverforseveralmonths.Ihavebeeninanenvironmentalgroupsincethenewtermbegan.Shehaskeptsortingthewastefor3years./since3yearsago.三、Itis/hasbeen+一段时间+since...句型构成：Itis/hasbeen+时间段+since+一般过去时从句转换技巧：这个句型可以和for/since句型互相转换：

•Ihavelivedherefor10years.

=Ihavelivedheresince2014.

=Ithasbeen10yearssinceImovedhere.

=Itis10yearssinceImovedhere.

中考题型：同义句转换常考for↔since↔Ithasbeen...since的互换。IthasbeentwoyearssinceIleftschool.（我毕业已经两年了。）Itisthreemonthssincehejoinedtheclub.（他加入俱乐部已经三个月了。）✏语法配套练习📝练习一：用for或since填空1Ihavelivedinthiscity____2018.2Shehasworkedhere____fiveyears.3Wehaveknowneachother____wewereinprimaryschool.4Hehasbeenill____aweek.5Theparkhasbeenopen____twomonths____.6WehavestudiedEnglish____weweretenyearsold.7Hehasbeenateacher____2015.8Thefilmhasbeenon____halfanhour.【参考答案】1.since（2018是时间点）2.for（fiveyears是时间段）3.since（后面是从句，用since）4.for（aweek是时间段）5.for;ago（"一段时间+ago"作时间点；或填sincetwomonthsago）6.since（后接过去时从句）7.since（2015是时间点）8.for（时间段）📝练习二：用re-前缀完成单词1Don'tthrowawaythebottle.Wecan____(重新使用)it.2Aftertheearthquake,they____(重建)theirhomes.3Ifyoufailtheexam,youcan____(重考)itnextmonth.4Theessaywasnotgood,soIhadto____(重写)it.5Weshould____(重新考虑)ourwayofliving.6Iwantto____(重读)thisbookagain.7Please____(再做)theexperimentmorecarefully.8Thelibrarywill____(更新)allitsbooksnextyear.9We____(再访)theschoolthreeyearslater.10Don'tforgetto____(回收)thewastepaper.【参考答案】1.reuse2.rebuilt3.retake4.rewrite5.rethink6.reread7.redo8.renew9.revisited10.recycle📝练习三：Ithasbeen/is+since句型与for/since互换1Ihavelivedherefor5years.→It________5yearssinceImovedhere.2Hehasbeenawayfromhomesince2020.→It____6yearssincehelefthome.3WehavelearnedEnglishfor3years.→同义句转换：____________3years____westartedlearningEnglish.4Ithasbeentwomonthssinceshejoinedtheclub.→同义句转换：She________intheclub____twomonths.5选择正确的since从句时态：Ithasbeen10yearssincehe____(come/came/hascome)tothiscity.【参考答案】1.hasbeen（Ithasbeen+时间段+since+过去时从句）2.is/hasbeen（两种形式均可）3.Ithasbeen;since（for→Ithasbeen+时间段+since）4.hasbeen;for（Ithasbeen+时间段+since→hasbeen+for+时间段）5.came（since后从句用一般过去时）📝练习三：用Howlong提问，根据提示回答1IhavelivedinBeijingfor10years.→____________you____inBeijing?2Hehasworkedheresince2015.→____________he____here?3ShehasstudiedEnglishfor3years.→____________she____English?4Wehavebeenfriendssinceprimaryschool.→____________you____friends?5Myfatherhasbeenadoctorfor20years.→____________yourfather____adoctor?【参考答案】1.Howlonghave;lived2.Howlonghas;worked3.Howlonghas;studied4.Howlonghave;been5.Howlonghas;been📝练习四：3R环保原则辨析（reduce/reuse/recycle）1Weshouldtryto____(减少)theamountofwasteweproduce.2Beforeyouthrowawaytheplasticbag,youcan____(再利用)it.3Wecan____(回收利用)oldnewspaperstomakenewpaper.4To____(减少)meanstryingtoproducelesstrash.5Whenwe____(回收),weturnusedmaterialsintonewproducts.6____(再利用)meansmakinguseofsomethingagain.【参考答案】1.reduce2.reuse3.recycle4.reduce5.recycle6.Reusing✏重点句式①现在完成时+for/sinceYouhavevolunteeredinanenvironmentalorganizationsincelastyear.Ihavekeptsortingthewasteforfivedays.②Howlonghas/have...?—询问持续时间—Howlonghasyourcitysortedthewaste?—Since2020.③...have/hasdonesth.—描述已采取的环保行动Peoplehaveplantedtreeseverywhere.Peoplehavestoppedcuttingdowntrees.④reduce/reuse/recycle—环保三R原则Toreducemeanstryingtoproducelesstrash.（减少=尽量少产生垃圾）Reusingmeansmakinguseofsomethingagain.（再利用=再次使用）Whenwerecycle,weturnusedmaterialsintonewproducts.（回收=变废为宝）✏句式配套练习📝练习一：Howlong提问回答1—________you____inthisschool?—Forthreeyears.（be）2—________yourfather____ateacher?—Since2010.3—________you____thegreenlife?—Forabouttwoyears.（live）4—________yourcity____waste?—Since2018.（sort）5—________he____anenvironmentalist?—Forfiveyears.（be）【参考答案】1.Howlonghave;been2.Howlonghas;been3.Howlonghave;lived4.Howlonghas;sorted5.Howlonghas;been📝练习二：用3R原则填空（reduce/reuse/recycle）1To____meanstryingtoproducelesstrash.2____meansmakinguseofsomethingagain.3Whenwe____,weturnusedmaterialsintonewproducts.4ThethreeR'sofenvironmentalprotectionarereduce,____andrecycle.5Weshould____theamountofplasticweuseeveryday.【参考答案】1.reduce2.Reusing（动名词作主语）3.recycle4.reuse（reduce,reuse,recycle）5.reduce📝练习三：英汉互译（运用本单元重点句式）1我已经在这所学校学习三年了。2—你们城市垃圾分类多久了？—自从2020年起。3Howlonghaveyoulivedalow-carbonlife?4Peoplehaveplantedmillionsoftreessince2000.5Reusingmeansmakinguseofsomethingagain.【参考答案】1.Ihavestudiedinthisschoolforthreeyears.2.—Howlonghasyourcitysortedthewaste?—Since2020.3.你过低碳生活多久了？4.自2000年起，人们已经种下了数百万棵树。5.再利用就是再次使用某物。📋Unit3综合训练综合卷一：词汇与短语综合运用（10题）1Airandwater____(pollute)areserious____(environment)problems.2Theriveris____