九年级英语 Unit13We’retryingtosavetheearth(词汇篇)试题人教新目标版
新人教版九年级英语下册Unit 13 We’re trying to save the earth!要点详解
Unit 13 We’re trying to save the earth!要点详解1. We’re trying to save the earth!我们正尽力拯救地球！(1) 本句时态为现在进行时，表示现阶段正在做的事情。
现在进行时所表示的动作并不一定在说话人的说话时刻进行，而是在包括说话时刻在内的一段时间当中进行。
例如：George is translating a book now. 乔治现在在翻译一本书。
（说这句话时，乔治不一定正在翻译；但在包括“说话时刻”在内的一段时间当中，乔治是在从事翻译工作。
）(2) try to do 表示“设法或尽力去做某事”，实际上做与不做，视情况而定，而try doing表示“试着做”，即动作真的进行了或正在进行，成败则视结果而定。
例如：He tried to read, but he was too tired to read much.他想设法看书，但太疲倦了，没看多少。
He tried reading, but that could not make him forget his trouble.他试着看书，但这并没使他忘记烦恼。
2. I am like this animal because I am strong and intelligent.我像这种动物，因为我强壮而聪明。
(1) like在本句中做介词，意为“像”，例如：He looks like winning the race.他看来要在比赛中获胜。
She is like her mother.她像她的妈妈。
(2) like做介词时可用very，very much，rather，quite等副词修饰。
例如：You look very much like your father.你与你父亲很相像。
3. Some of the swamps have become polluted。
一些沼泽已被污染了。
Unit-13-We're-trying-to-save-the-earth!重难点全解
word格式-可编辑-感谢下载支持Unit 13 We’re trying to save the earth!1. Environment protection 环境保护2. air pollution 空气污染3. noise pollution 噪音污染4. water pollution 水污染5. Public places 公共场所；公共地方6. Mobile phone 手机；可移动电话7. Art pieces 艺术品8. The food chain 食物链9. Scientific studies 科学研究10. The number of ... ...... 的数目11. Take part in 参加12. Take action 采取行动；采取措施13. Turn off关闭 = shut off14. Play a part in 在......中起作用15. Make a difference 起作用；有影响16. Pay for 付费；付出代价17. Put sth to good use 好好利用= make good use of18. Pull down 撤出；摧毁19. Cut down 砍到；削减20. Cut off 把......砍断开；截断21. Add up 把......加起来；加起来22. Clean up 把......打扫干净23. Throw away 把......扔掉；丢掉24. Bring back 拿回；归还；恢复25. Lead to 通向；导致26. Can’t afford to do sth. 不能承担做某事27. Build sth . out of 用......来建造某物28. Be made of 被用......制造成29. Be made from 被用......制造成30. Be famous for ........ 因......而出名31. Be full of 充满......；装满......= be filled with32. Be good for 对......有好处33. Be harmful to 对......有害34. (be) in danger 处于危险状态之中35. In the last twenty to thirty years.在过去的20至30年中36. At the top of sth 在......的顶部37. Instead of 代替；取代38. Upside down 上下颠倒；倒转1. We’re trying to save the earth! 我们正在竭尽全力拯救地球!try to do =try one’s best to do 努力去做某事。
人教版英语九年级全册Unit13We'retryingtosavetheearth!优秀教学案例
4.对小组合作进行评价，关注学生的参与度、贡献度和团队合作效果。
（四）反思与评价
1.引导学生进行自我反思，思考自己在学习过程中的优点和不足，培养自我评价和自我改进的能力。
2.组织学生进行同伴评价，鼓励他们互相提供反馈和建议，培养评价能力和批判性思维。
3.创设问题情境，让学生面临真实的环保问题，如水资源浪费、垃圾分类等，引导学生主动思考和寻找解决方案。
4.利用多媒体技术，如视频、音频、动画等，营造生动有趣的学习氛围，激发学生的学习兴趣和积极性。
（二）问题导向
1.设计有挑战性的问题，引导学生深入思考环保问题的本质和影响。
2.通过提问和讨论，引导学生自主探究和解决问题，培养他们的批判性思维和问题境的影响。
3.总结本节课的主要内容和知识点，确保学生对环保知识有一个全面而准确的理解。
（五）作业小结
1.布置相关的作业，如研究报告、行动计划等，让学生将所学知识运用到实际生活中去。
2.要求学生在作业中提出自己的观点和解决方案，培养他们的创新思维和批判性思维能力。
3.引导学生关注环保问题的多样性和复杂性，培养他们的分析和综合能力。
4.鼓励学生提出自己的问题，激发他们的好奇心和探索精神。
（三）小组合作
1.组织学生进行小组讨论和合作，鼓励他们分享自己的观点和想法，培养合作能力和团队精神。
2.设计小组活动，如共同完成一篇关于环保的文章、策划一次环保活动等，让学生实际行动起来，提高实践能力。
3.鼓励学生在作业中积极表达自己的想法，注重培养他们的写作能力和表达能力。
4.对学生的作业进行认真批改和评价，提供及时的反馈和建议，帮助学生巩固所学知识，提高他们的学习效果。
UNIT13Weretryingtosavetheearth原文与翻译
UNIT13We'retryingtosavetheearth原文与翻译《牛津初中英语》充分体现了《新课标》的诸多精神。
该教材具有两大特点。
下面是小偏整理的UNIT13We'retryingtosavetheearth 原文与翻译，感谢您的每一次阅读。
UNIT13We'retryingtosavetheearth原文与翻译SectionA1bListenandcompletethesentences.Tony:Hey,Mark,maybewecouldgoswimmingintheriverlaterthi safternoon.Mark:Idon’tthinkIwanttogo,Tony.Tony:Whynot?Mark:Iwastherelastweekendandtheriverwasreallydirty.Eventh ebottomoftheriverwasfullofrubbish,andtherewerenomorefishforf ishermentocatch.Tony:Noway!Itusedtobesoclean.Infact,ithasalwaysbeentheni cestriverinthistown.Mark:Notanymore.Ithinkpeoplearethrowinglitterintotheriver. Factoriesarealsoputtingwasteintotheriver.Tony:That’sterrible!Weshouldwritetothegovernment.Theys houldclosedownthefactories.Mark:Goodidea!ButIthinkeveryoneinthistownshouldhelptocl eanuptheriver,too.Everyoneshouldplayapart,notjustthegovernm entSectionA2aListentotheinterview.thekindsofpollutionthatJasonandSusan talkabout.Interviewer:T odaywe’retalkingtoJason andSusanaboutenvir onmentalproblems.JasonandSusan,canyoutellusaboutsomeofth eproblemsyou’veseen?Jason:Ithinkoneproblemisthattheairisbadlypolluted.Ihardlye verseeblueskiesanymore.Susan:Yes,andIusedtoseethestarsclearly.Interviewer:Whatdoyouthinkhascausedthisproblem?Susan:Well,therearemorecarsontheroadthesedays.Jason:Andfactoriesthatburncoalalsopollutetheairwithalotofb lacksmoke.Interviewer:Whatotherproblemsdoyousee?Susan:Iguessthere’stoomuchrubbishandwasteinthestreets.Jason:Yes!Everydaypeoplearethrowingawaythingslikewoode nchopsticks,plasticbowlsandplasticbags.Susan:They’realsolitteringinpublicplaces,forexample,durin gpicnicsinparks.Thisisturningbeautifulplacesintouglyones.Interviewer:You’reright.Theseareseriousproble msforourenv ironment.Next,let’stalkaboutthethingswecandotohelp.SectionA2bListenagainandcompletethesentences.Interviewer:T odaywe’retalkingtoJasonandSusanaboutenvir onmentalproblems.JasonandSusan,canyoutellusaboutsomeofth eproblemsyou’veseen?Jason:Ithinkoneproblemisthattheairisbadlypolluted.Ihardlye verseeblueskiesanymore.Susan:Yes,andIusedtoseethestarsclearly.Interviewer:Whatdoyouthinkhascausedthisproblem?Susan:Well,therearemorecarsontheroadthesedays.Jason:Andfactoriesthatburncoalalsopollutetheairwithalotofb lacksmoke.Interviewer:Whatotherproblemsdoyousee?Susan:Iguessthere’stoomuchrubbishandwasteinthestreets.Jason:Yes!Everydaypeoplearethrowingawaythingslikewoodenchopsticks,plasticbowlsandplasticbags.Susan:They’realsolitteringinpublicplaces,forexample,d urin gpicnicsinparks.Thisisturningbeautifulplacesintouglyones.Interviewer:You’reright.Theseareseriousproblemsforourenv ironment.Next,let’stalkaboutthethingswecandotohelp.SectionA2dRoleplaytheconversation.JasonandSusan,whatareyourideasforsolvingtheseproblems?Well,tocutdownairpollution,weshouldtakethebusorsubwayin steadofdriving.Yeah,orrideabike.Thereareotheradvantagesofbikeriding.It'sg oodforhealthitdoesn'tanythingGreatideas!Whataboutwastepollution?Mmm,Ithinksimplethingslikebringingabagtogoshoppingcan help.Istarteddoingthatayearago.Me,tooAlso,Inevertakewoodenchopsticksorplasticforkswhen Ibuytakeawayfood.Iusetheonesathome.Andremembertothrowrubbishinthebinsandkeeppublicplace scleanandbeautifulforeveryone.Sotogether,ouractionscanmakeadifferenceandleadtoabetter future!SectionA3aReadthepassageaboutsharksandcompletethefactsheetbelow.SavetheSharks!Manyhaveheardofsharkfinsoup.Thisfamousandexpensivedis hisespeciallypopularinsouthernChina.Butdoyourealizethaty ou’r ekillingawholesharkeachtimeyouenjoyabowlofsharkfinsoup?Whenpeoplecatchsharks,theycutofftheirfinsandthrowthesha rkbackintotheocean.Thisisnotonlycruel,butalsoharmfultotheenvir onment.Withoutafin,asharkcannolongerswimandslowlydies.Sharksar eatthetopofthefo odchainintheocean’secosystem.Iftheirnumber sdroptoolow,itwillbringdangertoalloceanlife.Manybelievethatsharkscanneverbeendangeredbecausethey arethestrongestintheirfoodchain.Butinfact,around70millionshark sarecaughtandtradedinthisindustryeveryyear.Thenumbersofsomekindsofsharkshavefallenbyover90percen tinthelast20to30years.Environmentalprotectiongroupsaroundthe world,suchasWildAidandtheWWF,areteachingthepublicabout“fi nning”.Theyhaveevenaskedgovernmentstodeveloplawstostopthesal eofsharkfins.Sofar,noscientificstudieshaveshownthatsharkfinsare goodforhealth,sowhyeatthem?Helpsavethesharks!SectionB1cListenandcheck(√)thethingsthatJuliaandJacktalkabout.Jack:Turnoffthelights,Julia.Itsaveselectricity.Julia:Oh,Iusuallydothat.Iwasjustinahurry.Jack:Isee.I’vejustreadabookwh ichgivesideasabouthowweca nsavetheenvironment.Forexample,youshouldturnofftheshowerw henyou’rewashingyourhair.Julia:Oh,Iwouldneverdothat.Ihaveveryshorthair.Itonlytakesaf ewminutestowash.Whatelsedoesitsay?Jack:Youshouldtakeyourownbagswhenyougoshopping.Julia:Oh,that’seasy.I’lldothatfromnowon.Whatelse?Jack:Peopleshouldstopridingincarsandstartridingbikes.Julia:Noway!Itwouldtakeme45minutestogettoschoolbybike!Jack:Butit’sgoodfortheenvironment!Besides,Ilikeridingmybi ke.Julia:Yes,andyoualsoliveclosetoschool!SectionB1dListenagain.Check(√)thethingsthatJuliaisdoingnow,thethings shewilldointhefutureandthethingsshewouldneverdo.Jack:Turnoffthelights,Julia.Itsaveselectricity.Julia:Oh,Iusuallydothat.Iwasjustinahurry.Jack:Isee.I’vejustreadabookwhichgiveside asabouthowweca nsavetheenvironment.Forexample,youshouldturnofftheshowerw henyou’rewashingyourhair.Julia:Oh,Iwouldneverdothat.Ihaveveryshorthair.Itonlytakesaf ewminutestowash.Whatelsedoesitsay?Jack:Youshouldtakeyourownbagswhenyougoshopping.Julia:Oh,that’seasy.I’lldothatfromnowon.Whatelse?Jack:Peopleshouldstopridingincarsandstartridingbikes.Julia:Noway!Itwouldtakeme45minutestogettoschoolbybike!Jack:Butit’sgoodfortheenvironment!Besides,Ilikeridingmybi ke.Julia:Yes,andyoualsoliveclosetoschool!SectionB2bReadthepassageandcompletethechartbelow.Rethink,Reuse,Recycle!Doyouoftenthrowawaythingsyoudon’tneedanymore?Have youeverthoughtabouthowthesethingscanactuallybeputtogoodu se?Nothingisawasteifyouhaveacreativemind.Youhaveprobablyn everheardofAmyHayes,butsheisamostunusualwoman.Shelivesin ahouseintheUKthatshebuiltherselfoutofrubbish.Thewindowsanddoorscomefromoldbuildingsaroundhertow nthatwerepulleddown.Thetopofthehouseisanoldboatturnedupsi dedown.Andthegateinfrontofherhouseismadeofrocksandoldglas sbottles.AmyrecentlywonaprizefromtheHelpSaveOurPlanetSociety.Thepresidentsaid,“Amyisaninspirationtousall.”Amyisn’ttheonlyonewhoisgoodatrecycling.JessicaWongfro mHongKongusesoldclothesthatpeop ledon’twearanymoretoma kebags.Shehasbeendoingthisforafewyearsnow.Sheopenedasmallshopwhereshesellsherbags,andshehasalso setupawebsitetosellthemonline.Sheespeciallylikestouseoldjeanst omakehandbags.Herbagsarecuteanduseful.“Iplantowriteabookaboutnewwaystouseoldclothes,”shesai d.“Ihopepeoplecanreadmybookandenjoyit!”WangTaosetupasmallbusinessinShanghaifouryearsago.Heisk nownforusingironandothermaterialsfromoldcarstomakebeautifu lartpieces.Somearelargepiecesthatlooklikeanimalsorhumans,and somearesmallerpiecesyoucanputathome.Themorepopularworks canevenbeseeninartshopsaroundthecity.WangTaohopestosetupa“metalart”themeparktoshowpeop letheimportanceofenvironmentalprotection.Notonlycantheartbri nghappinesstoothers,butitalsoshowsthatevencold,hardironcanb ebroughtbacktolifewithalittlecreativity.翻译：SectionA2d采访者：贾森和苏珊，对于解决这些问题，你们有什么想法?贾森：为了减少空气污染，我们应该乘坐公共汽车或者地铁，而不是开车。
人教版九年级全一册英语Unit-13-We’re-trying-to-save-the-earth-教案
Unit 13 We’re trying to save the earth!教案(SA)Unit 13 We’re trying to save the earth!一、教学目标：1. 语言知识目标基本词汇：litter, advantage, bottom, fisherman, coal, ugly, cost, wooden, plastic, takeaway, bin, shark, fin, method, cruel. Harmful, chain, ecosystem,industry, law, scientific, afford, reusable, transportation, recycle,napkin, upside, gate, bottle, president, inspiration, iron, work, metal,creativity,基本词组：be harmful to, at the top(of sth.), take part in, turn off, take action, throw away, put sth. to good use, pull… down, bring back基本句型：We’re trying to save the earth!The river used to be so clean.The air is badly polluted.No scientific studies have showed that shark fins are good for health.We should help save the sharks.2. 技能目标: 能正确运用现在进行时，现在完成时，被动语态，情态动词和usedto 句型。
3. 情感目标:有环境危机意识，学会关注环境保护环境。
二、教学重难点：1. 教学重点：（1）能正确运用现在进行时，现在完成时，被动语态，情态动词和used to 句型。
人教版英语九年级全册Unit13We’retryingtosavetheearth!大单元教学设计
3.通过讨论，教师引入本单元的主题：“We’re trying to save the earth!”（我们正在尝试拯救地球），并简要介绍本节课的学习目标。
6.拓展延伸：鼓励学生在课后进行环保主题的研究，如调查身边的环保行为、采访环保人士等，将学习延伸到课堂之外。
四、教学内容与过程
（一）导入新课
在这一阶段，教师将采用多媒体资源和生活实例来导入新课，激发学生的学习兴趣和参与热情。
1.教师展示一系列关于地球环境问题的图片和视频，如森林砍伐、海洋污染、空气污染等，引导学生关注这些问题的严重性。
教学设想：通过词汇卡片、小组竞赛、情景剧等形式，让学生在实际语境中反复练习，加深记忆。
2.语法运用：现在进行时在描述正在进行的环保活动中的应用，以及一般现在时在陈述环保事实和习惯中的应用。
教学设想：设计语法练习，如填空、改错、句型转换等，帮助学生掌握语法规则，并通过真实的语境任务进行巩固。
3.阅读理解：提取文章主旨，理解作者观点，分析环保问题的原因和解决方案。
4.写作任务：请学生撰写一篇关于“我如何为地球环境保护做贡献”的短文，要求他们运用课堂所学的写作技巧，表达自己的观点和建议。
5.环保实践：鼓励学生在家中或学校进行一项环保实践活动，如回收废旧物品、节约用水用电等，并记录下来，在下一节课与同学分享。
6.家庭作业：布置一份综合性的家庭作业，结合本单元所学内容，要求学生观察并记录身边的环保行为，采访家人或朋友对环保的看法，整理成一篇小报告。
在教学过程中，教师应充分了解学生的学情，结合他们的需求和兴趣，设计有针对性的教学活动，激发学生的学习兴趣，提高他们的英语素养和环保意识。
部编版初中英语九年级Unit13We'retryingtosavetheearth!必背
九年级Unit13We'retryingtosavetheearth!必背【重点短语】1. at the bottom of the river在河床底部at the top of在... 顶端2. be full of rubbish 充满了垃圾3. throw litter into the river/put waste into the river 把垃圾扔入河中4.close down关闭/查封5. play a part in cleaning it up 尽一份力把它清理干净6. land pollution 土地污染/air pollution空气污染noise pollution /water pollution/waste pollution7. pollute the air with black smoke 用黑烟污染空气8.be badly polluted 受到严重污染9. cut down air pollution 减少空气污染10.public places公众场所11.turn...into把...转变为.../turn on打开/turn off关闭/ turn up调高/turn down调低,拒绝/ turn out证明是,结果是,关掉(熄灭)(电灯煤气等),制造/turn over翻阅,把…翻过来,反复考虑/turn to转向,求助于12. make a difference to sth对... 产生影响/做出改变13.lead to导致/通向14.hear of/about听说15.shark fin soup鱼翅汤16.in the southern China在中国南方17.cut off割掉/切除cut down削减/砍倒/减少cut out切断/删去/关掉18.throw... back into把...扔回进19.food chain食物链20.in the ocean's ecosystem在海洋生态系统中21.be endangered濒临灭绝22.in this industry在这个行业23.the number of...,... 的数量a number of...,大量的...24.fall/drop by 下降了fall/drop to下降到25.in the last 20 to 30 years在过去的二三十年里26.environmental protection groups环保组织27.teach the public about finning教导公众有关割鳍28.develop laws完善法律29.scientific studies科学研究30. improve the environment改善环境31.take action to do sth.采取行动去做……32.can't afford to wait等不起33.begin with从...开始34.save electricity省电35.turn off the lights关灯36.reusable bags可重复使用的袋子/环保袋37. pay for 付费38. add up累加/合计39.do...instead of doing...做...而不是做...40.stop riding in cars不要开车出行41. use public transportation 使用公共交通42. recycle books and paper 回收书和废纸43. use paper napkins 使用纸巾44. turn off the shower 关掉淋浴/喷头45. rethink, reuse, recycle反思,回收,再利用46.think about考虑47.put...to good use把…很好地利用/充分利用...48.have a creative mind有创造性的思维49.build herself out of rubbish用垃圾建造自己的房子50.pull down拆毁51.turn...upside down把…上下颠倒/倒置52.win a prize获奖53.help save our planet society帮助拯救我们地球社会54.be an inspiration to us all鼓舞了我们所有人55.set up a website建立网站56.art pieces艺术品57. bring back to life使复生/复活58.with a little creativity用一点点创造力【重点句型】1. Even the bottom of the river was full of rubbish. 甚至河底都充满垃圾。
人教版英语PEP英语九年级下册 Unit 13 We’re trying to save the e
problem be
to ___c_lo_s_e_d_o_w_n___ the factories. Everyone should
solved?
help to ___c_l_e_an__u_p____the river.
Listen again and answer the questions.
water pollution
land pollution
Do you know what caused the pollution? What should we do to save the earth?
Presentation
1a Here are some words related to different kinds of pollution Write them in the box below. Then add more words.
What caused the People are throwing ____l_it_te_r_______ into the river.
problem?
Factories are putting ____w__a_st_e______ into the river.
How should the We should write to the __g_o_v_e_r_n_m__en_t__ and ask them
健康的饮食在帮助人们长寿方面起着非常大的作用。
Homework
1. Preview the conversation in 2d. 2. Do the exercises in students’ book.
Thank you!
Unit 13 We’re trying to save the earth!
人教版英语九年级全册unit13We’retryingtosavetheearth
设计意图：通过图片展示，让学生直观地感受到环境问题的严重性，为新课的学习做好情感铺垫。
2.教学活动：教师引导学生讨论以下问题：What do you see in these pictures? How do you feel about it? Do you think it's important to protect the environment?
2.培养学生的团队合作精神，使他们学会在合作中共同解决问题。
3.增强学生的社会责任感，让他们明白学习英语的目的之一是为了更好地参与国际交流，为全球环保事业做出贡献。
4.激发学生对英语学习的兴趣，帮助他们树立自信心，勇于面对挑战。
二、学情分析
针对人教版英语九年级全册Unit 13 “We’re trying to save the earth”的教学内容，学情分析如下：
人教版英语九年级全册unit13We’retryingtosavet
在本章节中，我们将围绕人教版英语九年级全册Unit 13 “We’re trying to save the earth”的主题，帮助学生掌握以下知识与技能：
1.掌握本单元的核心词汇和短语，如“pollution”, “waste”, “recycle”, “renewable energy”等，并能运用到日常交流中。
设计意图：激发学生的创作兴趣，提高他们的审美和动手能力。
设计意图：锻炼学生的书面表达能力，使他们能够运用所学知识阐述自己的观点。
2.口语作业：学生以小组为单位，录制一段关于环保的对话或访谈，讨论如何在学校或家庭中实施环保措施。要求每个成员都有发言机会，对话中需包含本节课所学的词汇和时态。
人教版英语九年级全册 Unit 13 We're trying to save the earth!
3第一课时 Section A (1a—2d)Ⅰ. 根据首字母及句意补全单词。
1.Y ou mustn’t throw pafter you use them.2.S tudents from the middle school used 300trees to build a w house.3.A nswers can be found at the b ofPage 8.4.T he girl was afraid to speak in publicbecause she thought she was u .5.W e should keep our classroom clean, sodon’t l everywhere.Ⅱ. 根据汉语意思完成译句。
1. 警察在湖底发现了一具尸体。
T he police found a body the lake.2. 在大城市生活的花费非常高。
T he of in is very high.3. 老师告诉我们不要到处乱扔垃圾。
T eachers tell us to everywhere.4. 他在一个木制的大箱子里养了一只兔子。
H e in a big box.5. 顾客们已充分了解了这些好处吗？H ave been ofthe ?Ⅲ. 补全对话（有一项多余）。
A:E xcuse me. Could you tell me where thenearest museum is?B:W ell, it’s a bit far. You can go along thestreet, and then take the first turning on theright. Walk on and you’ll find one there. 1 A: Oh, thanks. 2 B:I t should be open now. It opens at 8:00 am.A: Good. 3 B:W hich bus? I don’t know. You may ask thepoliceman over there. 4 A:O K, by the way, where’s the nearestMcDonald’s, do you know?B: 5 See that sign?A: Oh, thanks a lot.B: You’re welcome.A. You can’t miss it.B. He must know that.C. Right behind you, sir.D. You don’t need to rush.E. Do you know what time it opens?F. And can you tell me which bus I should take?1. 2. 3. 4. 5.Ⅳ. 阅读理解。
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Unit 13 词汇篇__________________________________________________________________________________ __________________________________________________________________________________短语归纳1.make a difference 起作用；有影响2.take part in 参加3. turn off 关掉4. pay for 付费；付出代价5. cut down 减少6. lead to 导致7. hear of 听说8. cut off 切除9.throw away 扔掉10. put sth. to good use 好好利用11. put … down 拆下12.upside down 上下颠倒13.bring back 恢复重点句子1.We’re trying to save the earth. 我们在努力拯救地球。
2. The rive used to be so clean. 这河流过去是如此的清澈。
3. The air is badly polluted. 空气被严重污染。
4. The method is not only cruel, but also harmful to the environment. 这种方法不仅残酷，而且对环境也有害。
1. And the gate in front of her house is made of rocks and old glass bottles. 她房子的前门是由岩石和旧玻璃瓶子制成的。
2. Not only can the art bring happiness to others, but it also shows that even cold, hard iron can be brought back to life with a little creativity. 不仅艺术品能给人们带来快乐，而且冰冷坚硬的钢铁在艺术创作下也恢复了生命。
重要句型详解：1.To cut down air pollution, we should take the bus or subway instead of driving. 为了减少空气污染，我们应该乘坐公共汽车或者地铁，而不是开车。
cut down 意为“减少”；是“动词+副词”结构的短语，所带的宾语为名词时，宾语可位于down的前面或后面；为代词时，只能位于down前面。
You’d better cut the article down to about 2,000 words. 你最好能把这篇文章压到两千字左右。
【拓展】cut down 还可表示“砍倒”的意思。
They cut down the big tree. 他们砍倒了这棵大树。
辨析：spend, cost, take, pay2.Have you ever taken part in an environmental project? 你曾经参加过环境保护活动吗？辨析：join, join in 和take part inWill you join us in the discussion? 你参加我们的讨论吗？She joined the Young Pioneers. 她加入了少先队。
Why didn't you join in the talk last night? 昨晚你为什么没参加座谈？Did you take part in the sports meet? 你参加运动会了吗？3. We can’t afford to wait any longer to take action! 我们不能再等了，要采取行动了。
⑴ afford是动词，意为“买得起,担负得起”，通常与can, could, be able to连用,多用于否定句中。
They couldn’t afford $50 for a ticket. 他们拿不出50美元买一张票。
⑵ afford后面常跟带to的动词不定式。
We can’t afford to go abroad this summer. 今年夏天我们没有足够的钱出国。
4.And the gate in front of her house is made of rocks and old glass bottles. 她房子的前门是由岩石和旧玻璃瓶子制成的。
【辨析】be made + 介词4. Not only can the art bring happiness to others, but it also shows that even cold, hard iron can be brought back to life with a little creativity. 不仅艺术品能给人们带来快乐，而且冰冷坚硬的钢铁在艺术创作下也恢复了生命。
“not only … but also …”是一个并列连词词组，其意思基本等于“both … and …”。
使用not only … but also … 时须注意的几点：⑴ not only与but also后面所连接的词的词性必须对等：They completed the project not only punctually but also perfectly. 他们不仅准时完成工程，而且完成得很出色。
⑵ not only只能连用，而but also既可连用，也可分开用：Television is not only boring, but it also wastes a lot of time. 电视不仅乏味，而且还浪费许多时间。
⑶谓语动词的数应与but also后主语的数保持一致：Not only you but also Mr. Zhang teaches in this college. 不仅你，张老师也在此学院教书。
⑷ not only放在句首，后接句子时要用倒装结构：Not only had the poor man been fined, but also he had been sent to prison. 这个可怜的人不仅被罚款，而且还被送进了监狱。
6.Which parts need to be improved? 哪些部分需要被改善？辨析：need to be done; need doing与need to do⑴need doing=need to be done 需要被…现在分词doing表被动“需要被做”，相当于need to be done。
My watch needs repairing. =My watch needs to be repaired.我的表需要修了。
⑵ need后加不定式，证明need为实义动词，而非情态动词，这时need有人称和数的变化。
He needs to get up early. 他需要早起。
7.What or who is causing these problems? 什么或谁将会导致这些问题？cause用作动词，当“引起，造成，使得”讲。
一般指引起或造成不好的结果。
cause sb. sth.= cause sth. to sb.(后接间接宾语+直接宾语)为固定用法。
He caused his parents much trouble.= He caused much trouble to his parents. 他给父母带来很多烦恼。
1.—Did you tell it to Jack?—Yes, but we were ____ in the middle of our telephone conversation.A. cut downB. cut offC. cut upD. cut into2.—Do you take exercise every day?—Yes. I always ___thirty minutes after supper.A. spendB. costC. takeD. pay3.—Have you _____ a club?—Yes, I’m in a swimming club and I often _____ the swimming training.A. joined; take part inB. joined; joinC. taken part in; joinD. taken part in; join in4.Miss Taylor never wastes money on anything too expensive, even though she can _____to. She has donated much of the money she saved to charities.A. affordB. allowC. remindD. pay5.Something is wrong with my car. It needs _____.A. repairB. to repairC. repairingD. to be repair解析：1.A. cut down 切断 cut off切掉 cut up 切开2.A考查有关花费的词语辨析，详解见知识梳理3.A.考查join, take part in, join in 辨析。
详解见知识梳理4.A考查afford to do,支付的起5.C.考查need doing sth需要被......基础演练I. 根据句意及所给汉语提示，写出句中所缺单词。
1.Don’t play a joke on him about his weight —it’s ________(残忍的).2.You are supposed to know the ________(法律) of your own co untry.3.Can these toys be ________(回收利用)?4.These materials are widely used in ________(工业).5. They walked because they couldn’t ________(负担得起) a taxi.6. To solve this problem, we need to learn more ________(科学的) knowledge.II. 根据句意，从方框中选择恰当的单词填空，有的需要变换形式。