unit13wearetryingtosavetheearth知识点总结
人教版 九年级unit13 We are trying to save the earth知识点详解
Unit 13 We are trying to save the earth.知识点详解单元目标总览：1.noise pollution噪音污染（1）noise此处作为名词，意为噪音。
make noises或make a noise意为制造噪音。
◆If you make noises at night,my dog will bark.如果你在晚上发出吵闹声，我的狗会叫。
（2）pollution不可数名词，“污染，污染物”，其动词形式是pollute。
◆The river has been polluted by wastewater from the factory.这条河流已经收到工厂废水的污染。
2. The air has become really polluted around here. 这儿的空气已经被污染了。
辨析：turn, get 与become①become多指身份、职位等的变化，它强调变化的过程已经完成，后面可接名词或形容词。
◆He becomes a teacher. 他成了一名老师。
② get多用于口语，表示一种变化过程，强调的是“渐渐变得”，后常接形容词的比较级形式。
◆In winter the days get shorter. 冬季白天变得较短。
③ turn指在颜色和性质等方面与以前的完全不同，强调变化的结果。
◆Leaves turned brown in the mountains. 山里的树叶已变成了棕色。
3. 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。
最新精编秋人教版英语九年级unit3《wearetryingtosavetheearth》知识点工作总结精品模板
Unit 13 We're trying to save the earth！第1课时(Section A 1a－3b)短语1．play a part in点拨play a part in 意为“在……中起作用；扮演角色；参与……”，其后面如果接动词，要用动名词形式。
链接play with 和……一起玩play against 对抗2．clean up点拨clean up 意为“打扫干净；整理好”，强调对某物进行整理和打扫，使其变得更加干净。
如：I will clean my old books up.我要把我的旧书整理一下。
链接(1)clean-up 是合成词。
如：Today is a Clean-up Day.今天是清洁日。
(2)clean out 意为“扫除；清除；打扫干净”，强调将某物扫除掉，将其扔掉，从而达到干净的效果。
如：I asked the children to clean out their desks.我叫孩子们把他们的课桌清理一下。
3．instead of点拨instead of 意为“代替；而不是”。
辨析instead 与 instead of(1)instead of 是短语介词，后面一般接名词、代词、动名词或介词短语做宾语。
instead of 如果后面跟介词短语，介词不可省略。
如：We will have fish instead of meat this evening.我们今晚吃鱼不吃肉。
They'll have tea in the garden instead of in the house. 他们在花园里，而不在屋子里喝茶。
(此句中的 of 和 in 均不可省略)(2)instead 单独使用时，是做副词，意思是“代替；顶替”。
如：Last summer I went to Qingdao. This summer I'm going toDalian instead.去年夏天我去了青岛。
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。
人教版九年级英语下册Unit 13 We’re trying to save the earth!S
2．It's good for hetrlth and it doesn’t cost anything！它有利于信康，并且它不花费任何东
西！（教材第98页） be good for意为“对……有益”，反义词组be bad for意为“对……有害”。 辨析：be good for，be good at与be good with
【中考链接2】
1. (2014山东威海中考模拟) Why don't you＿＿A ＿your
friends to the party? I want to meet them.
A bring
B. brings
C.leaves
D Mr Li. I A my
Unit 13 We’re trying to save the earth!
Section A 课堂精讲
【语法点精讲】
1．（1）We're trying to save the earth!我们正在 竭力拯救地球！
（2）People are throwing litter into the river.人们 正在把垃圾扔进河里。
(2) 表示现阶段正在进行的动作或存在的状态。 如： They are studying hard this term. 他们这个学期学习一直很努力。 (3)come,go，leave，arrive，start等动词用现在 进行时表示将来。 如：The bus is coming soon. 车不久就会来了。 (4)在由while(当……时候)引导的状语从句中，动
English homework at home.
－Don’t forget it to school tomorrow.
Unit 13 We're trying to save the earth! 重难点知识归纳总结
人教版英语九年级Unit 13 We're trying to save the earth! 重难点知识归纳总结【重点单词】litter ['lɪtə] v. 乱扔n. 垃圾；废弃物bottom [ˈbɒtəm] n. 底部；最下部fisherman [ˈfɪʃəmən] n. 渔民；钓鱼的人coal [kəʊl] n. 煤；煤块ugly [ˈʌɡli] adj. 丑陋的；难看的advantage [ədˈvɑːntɪdʒ] n.优点；有利条件cost [kɒst] v. 花费n. 花费；价钱wooden [ˈwʊd(ə)n] adj. 木制的；木头的plastic ['plæstɪk] adj. 塑料的n. 塑料；塑胶shark ['ʃɑːk] n. 鲨鱼fin [fɪn] n.（鱼）鳍cruel [ˈkruːəl] adj. 残酷的；残忍的harmful [ˈhɑːmfʊl] adj. 有害的chain [tʃeɪn] n. 链子；链条ecosystem ['iːkəʊsɪstəm] n. 生态系统industry [ˈɪndəstri] n. 工业；行业law [lɔː] n. 法律；法规scientific [saɪən'tɪfɪk] adj. 科学上的；科学的afford [ə'fɔːd] v. 承担得起（后果）；买得起reusable [ri:'ju:zəbl] adj. 可重复使用的；可再次使用的transportation [ˌtrænspə'teɪʃən] n. 运输业；交通运输recycle [riː'saɪkl] v. 回收利用；再利用napkin ['næpkɪn] n. 餐巾；餐巾纸gate [geɪt] n. 大门bottle [ˈbɒtl] n. 瓶；瓶子president [ˈprezɪdənt] n. 负责人；主席；总统inspiration [ˌɪnspə'reɪʃən] n. 灵感；鼓舞人心的人（或事物）iron ['aɪən] n. 铁work [wɜːk] n. (音乐、艺术)作品metal ['metl] n. 金属creativity [ˌkriːeɪ'tɪvɪtɪ] n. 创造力；独创性【重点短语】1. at the bottom of the river 在河底2. be full of rubbish 充满垃圾3. throw litter into the river 把垃圾扔入河中4. play a part in cleaning it up 尽一份力把它清理干净5. land pollution 土地污染6. fill the air with black smoke 使空气中充满了黑烟7. cut down air pollution 减少空气污染8. make a difference 产生影响9. take action 采取行动10. turn off 关掉11. pay for 付费12. add up 累加13. use public transportation 使用公共交通14. recycle books and paper 回收书和纸15. use paper napkins 使用纸巾16. turn off the shower 关掉淋浴器17. ride in cars 开车出行18. cut off 割掉；砍掉19. upside down 颠倒；倒转【重点句型】1.Even the bottom of the river was full of rubbish.甚至河底都充满了垃圾。
unit13wearetryingtosavetheearth知识点总结
Unit 13 We are trying to save the earth!一．教材知识详解Section A1.The air has become really polluted around here.(1)现在完成时（复习）(2)become2.Well, cut down air pollution, we should take the bus or subway instead of driving.(1)cut down(2)instead of 与instead3.There are other advantages of bike riding. It’s good for health and it doesn’t cost anything!考点：advantage4.And remember to throw rubbish in the bins and keep public places clean and beautiful for everyone.(1)remember to do remember doing(2)系动词keep(3)everyone与every one5.Many have heard of shark fin soup.hear of 听说hear短语归纳：6.When people catch sharks, they cut off their fins and throw the shark back into the ocean.cut off 连接名词或代词时，名词或代词应放在_________________________cut短语归纳：off短语归纳：7.This method is not only cruel, but also harmful to the environment.(1)cruel(2)not only...but also(3)be harmful to8.So far, no scientific studies have shown that shark fins are good for health, so why eat them?考点：so far9.Many believe that sharks can never be endangered because they are the strongest in their food chain.(1)the strongest(2)Endanger10.afford /spend/take/cost/paySection B1.Do you often throw away things you don’t need anymore?考点：throw away2.Have you ever thought about how these things can actually be put to good use?(1)think about(2)put ...to good use*put 其他短语：3.She lives in a house in the UK that she built herself out of rubbish.(1)built...out of sth(2)定语从句复习4.The windows and doors come from old buildings around her town that were pulled down.考点：pull down*pull其他短语：5.She opened a small shop where she sells her bags, and she has also set up a website to sell them on line.(1)This is the city where I was born.(2)set up*set相关短语：6.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.(1)not only...but also...(2)bring...back to life(3)others二．语法复习1.现在进行时ed to3.被动语态4.现在完成时5.情态动词【基础训练】【能力提升】。
九年级英语全册 Unit 13 We’re trying to save the earth重点难点
Unit 13 We are trying to save the earth.重点、难点、考点及疑点注释1. In 1972, it was discovered that they are endangered.(P119)1972年，人们发现它们已经濒于灭绝。
was discovered是一般过去时的被动语态，discover“发现”，近义词为find和invent。
【友情链接】discover, invent与find◎discover指发现过去所不知道的东西，新奇或意外的东西。
Coal was first discovered and used in China.中国首先发现并使用了煤。
Columbus discovered America on the 12th of October, 1492.1492年10月12日，哥伦布发现了美洲。
◎invent意为“发明”，即创造出以前从未存在过的东西。
Edison invented the electric lamp.爱迪生发明了电灯。
Radio had just been invented then.那时无线电刚刚发明出来。
◎find意为“找到”，侧重于找到过去丢失的人或物，但有时也表示凭经验或偶然发现了一种东西。
Today, corn is found all over the world.今天，全世界都有了玉米。
She found him a very good pupil.她发现他是个非常好的学生。
◎有时find和discover可以互相替代，意思相同。
His notebook was found/discovered in the desk.他的笔记本是在课桌里找到的。
2. Some of the swamps have become polluted. (P119)一些沼泽地受到了污染。
have become polluted 中的become是连系动词，polluted是过去分词。
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。
人教版新目标九年级英语Unit 13讲义及重点总结
新目标九年级英语Unit 13 We’re trying to save the earth! 讲义一、词性转换Section A1. litter → (v.) litter2. wood → (adj.) wooden3. harm → (adj.) harmful4. science → (adj.) scientific5. reuse → (adj) reusable6. transport → (n.)transportationSection B7. inspire → (n.) inspiration8. create → (n.) creativity /(adj.) creative二、短语归纳1. play a part in在……中起作用；参与2. not only…but also…不但……而且……3. no longer 不再4. so far 到目前为止5. take action 采取行动6. cut down 砍倒；减少7. help out 帮……解决困难8. pay for 付费；付出代价9. turn off 关掉10. instead of 代替11. lead to 导致；通向12. be harmful to 对……有害13. at the top of 在……顶部14. clean up打扫干净15. add up 总计；加起来16. begin with 以……开始17. set up 建立18. be made from由……制成（看不出原材料）19. be made of由……制成（看得出原材料）20. take public transportation乘坐公共交通工具21. upside down 上下颠倒；倒转22. be known for 因……闻名23. win a prize 获奖24. be good at擅长于25. ride a bike 骑自行车26. get worse and worse越来越糟糕27. throw away 扔掉；抛弃28. pull down 拆下；拆毁29. put……to good use好好利用某物30. bring back恢复；使想起；归还三、句型集萃1. What are your ideas for… 关于……你有什么看法？2. do A instead of doing B 做A而不做B3. doing sth. can help 做某事有用4. The number(s) of … have fallen by… ……的数量下降了……5. a + adj.最高级+ n. 一个最……的……6. sb. isn’t the only one who ……不是唯一一个……的人四、重点句子1. There are other advantages of bike riding.骑自行车还有其他的优点。
九年级全册Unit13 We're trying to save the earth!知识点归纳
人教版初中英语九年级全册Unit13 We're trying to save theearth!知识点归纳一、重点词组与句子Section A1. throw …into …把……扔进……2. be full of 装满，充满3. close down the factories 关闭工厂4. clean up the river 清理河流5. play a part in 参与6. turn …into …= change …into…把…变成7. cut down air pollution 减少空气污染8. takeaway food 外卖食物9. public places 公共场所10. make a difference 起作用，有影响11. lead to a better future 创造一个美好的未来12. hear of 听说13. cut off 割掉14. throw…. back into …把……扔回到……15. be harmful to …对……有害16. at the top of 在…顶部或顶端17. drop too low 下降太低18. instead of doing sth. 代替做某事19. in the last 20 to 30 years 在过去的20到30年里（用于现在完成时态）20. so far 到目前为止（用于现在完成时态）21. can’t afford to do sth. 担负不起做某事22. pay for 付费；付出代价23. take part in 参加1. People are throwing litter into the river. 人们正在把垃圾扔进河里。
2. Factories are putting waste into the river. 工厂正在把废物倒进河里。
3. Everyone should help to clean up the river.人人都应该帮助清理河流。
洛阳市九年级英语全册Unit13Wearetryingtosavetheearth重点知识归纳
洛阳市九年级英语全册Unit13Wearetryingtosavetheearth重点知识归纳单选题1、—Look! Mary is talking to Mr. Smith over there.—It ________ be her. She is ill and in hospital now.A．mustn’tB．shouldn’tC．needn’tD．can’t答案：D句意：——看！玛丽正在那边和史密斯先生谈话。
——那不可能是她。
她生病了现在在医院。
考查情态动词。
mustn’t禁止；shouldn’t不应该；needn’t不必；can’t不可能。
根据“She is ill and in hospital now.”可知，在那边和史密斯先生谈话的不可能是玛丽，can’t表否定推测。
故选D。
2、So far, red tourism (旅游业) ________ quickly and it’s becoming more and more popular. A．developedB．will developC．has developed答案：C句意：到目前为止，红色旅游发展迅速，越来越受欢迎。
考查时态。
根据“So far”可知句子使用现在完成时have/has done。
故选C。
3、— Is it important to protect wild animals, Susan?— Yes. If we don’t protect them, they ________ die out one day.A．needB．can’tC．may答案：C句意：——保护野生动物很重要吗，苏珊？——是的。
如果我们不保护它们，它们有一天可能会灭绝。
考查情态动词。
need需要；can’t不能；may可能。
根据“If we don’t protect them, they...die out one day.”可知，表示一种可能性，应用may，故选C。
九年级人教版Units13-14知识点
九年级人教版Units13-14知识点Unit13 We’re trying to save the earth!SectionA1. noise “噪音，喧闹声”常指不悦耳，不和谐的嘈杂声sound “声音”泛指自然界的各种声音voice “嗓音”一般指人的声音，如说话声，唱歌声，谈笑声等，除鸟声外很少表动物的声音2.（at）the bottom of 在……的底部3. throw litter into the river 把垃圾扔到河里4. put waste into the river 把废弃物扔到河里5. used to do sth. 过去常常做某事used to be + adj./名词短语表示过去存在的某种状态be used to do sth. 被用来做某事be/ get used to doing sth. 习惯做某事6. play a part / role in 参与，在某方面起作用7. litter 指随手丢弃的垃圾rubbish 指任何成堆的的，破损的，用过的或无用的尤指弃掉的垃圾garbage 指生活中的垃圾，包括厨房里的剩菜剩饭或不能再用的食材waste 指任何被丢弃的东西8. land pollution 土地污染air pollution 空气污染noise pollution 噪音污染water pollution 水污染9. cut down 减少，把……砍到，缩减cut in 插话，超车cut off 切断，隔断，断绝cut sb. sth.= cut sth. for sb. 为某人切某物cut sth. into sth. 把某物切成某物10. instead of + n. /pron. / v-inginstead （副词）放句首，句末，其后用逗号隔开11. be good / bad for 对……有益/害be good at + n. /pron./v-ing 擅长……be good with…善于应付，擅长于……打交道12. go shopping = do some shopping 去购物，去买东西13. take wooden chopsticks 使用木制筷子14. takeaway food 外卖15. throw rubbish in the bins 把垃圾扔到垃圾箱16. make a big / great difference to 对……产生影响17. lead to 通向18. hear of sb./sth. “听说某人/ 某事的情况”（强调从别人那里间接得知）=hear about sb./sth.19. throw back into 把……扔回到20. be harmful to = do harm to 对……有害21. fall by 下降了fall to 下降到22. develop / make laws 制定法律23. the sale of ……的交易24. afford + n. / pron. / to do sth. 承担的起，买得起25. take action 采取行动26. begin with = start with 以……开始end （up）with 以……结束from the beginning 从一开始at the beginning of 在……的开始from the beginning to the end 自始至终27. add up 把……加起来add up to 总计为，总共是Section B28. put sth. to good use 好好利用……充分利用……29. a most unusual woman 是一个很/ 非常不寻常的女性a + most +adj. + n单一个很……的……30. build / make…out of 用……制作……31. pull down 拆除，拆毁32．turn upside down 上下颠倒33. be made of 由……制成（可看出原材料）be made from 由……制成（看不出原材料）be made in + 地点产于某地be made by 由……制成be made into 被制成……be made up of 由……构成34. win + 比赛的项目，奖品，战争等“赢得，获胜”beat + 所战胜的对手（人）“打赢，战胜”35. be an inspiration to sb. 对某人来说是个鼓舞人心的人/事36. use sth. to do sth. 用……做……37. set up 建立，设立，创办，开办38. look like 看起来像39. bring back 使恢复，使想起，归还Unit 14 I remember meeting all of you in Grade 7Section A1. make / do a survey of / about + n./ pron./v-ing 对……做调查2. help sb. with sth. = help sb. （to）do sth. 帮助某人做某事with the help of sb. = with one’s help 在某人的帮助下without one’s help 没有某人的帮助help oneself to sth. 随便吃/喝help sb. out 帮助某人解决难题/摆脱困境can’t/couldn’t help doing sth. 情不自禁地做……3. meet the standard 符合标准4. be strick with sb. = be hard on sb. 对某人要求严格be strick in sth. 对某事要求严格5. in a row 连续几次地6. learn + n. / pron. / to do sth. 学习……learn about 了解，知道learn from sb. 向某人学习learn …by oneself = teach oneself 自学learn + that 从句意识到7. advise sb. （not）to do sth. 建议某人（不）做某事advise sb. on / about 关于……给某人忠告/建议8. take a break = have a rest 休息一会儿take a break from doing sth. 暂停/中断做某事，休息一下9. follow the instructions for 遵循……的说明instruction on （how to do ）sth. 如何做某事的指示instructions to do sth. 做某事的指示on sb’s instructions 遵照某人的指示10. be patient with sb. 对某人有耐心patient adj. 有耐心的n. 病人patiently adv. 耐心地11. work out 解决，算出，产生结果，发展成功work out fine/well 奏效12. guide sb. to do sth. 指导某人做某事guide sb. to +地点指引某人去某地13. encourage sb. to do sth. 鼓励某人做某事encourage sb. in sth. 在……方面鼓励某人/助长某人的某种行为14. put in effort 付出努力put in 投入，付出，花费（时间，精力等）put in 插话，插入，放进15. look back to 回忆，回首，回顾think back to 回忆起16. take pride in = be proud of 对……感到自豪be proud of （doing）sth. 为（做）某事感到自豪be proud to do sth. 做某事很自豪be the pride of 是……的骄傲17. preparation n. 准备，预备prepare for 为……做准备prepare to do sth. 准备做……prepare sth. 准备某物18. make a mess 弄得一团糟be in a mess 乱七八糟19. have fun = have a great / good/wonderful time =enjoy oneself 玩的开心，过得愉快have fun in doing sth. 做某事很开心20. It’s time to do sth.= It’s time for sth. 该做谋事，到做某事的时间了It’s time for sb. to do sth. 到某人做某事的时候了21. graduate from ……从……毕业22. keep/stay one’s cool/calm 沉住气，保持冷静23. get poor / good / better grades in…在……取得糟糕的/好的/更好的成绩24. have problem with sth. 在某方面有困难have problem/trouble/difficulty ( in) doing sth. 在做某事方面有困难do sth. without any problems 做……毫不费力25. go by=pass by （时间）逝去，过去26. look forward to +n./pron./v-ing 期望做……Section B27. get a business degree 获得商科学位28. in the future 在将来in future = from now on 从今以后29. pass the exam 通过考试30. get into senior high school 考入高中31. believe in“信赖，信任，”信赖某人的（人格，力量等）或相信某人，某物的存在believe sb. 相信某人所说的话，与这个人的品质无关32. go for it 为此而努力33. accept the invitation 接受邀请34. Thanks/Thank you for +n./pron./v-ing 因……而感谢35. thanks to 多亏，由于，幸亏36. graduation ceremony 毕业典礼37. congratulate sb. 祝贺某人congratulate sb. on sth. 因某事向某人祝贺38. thirsty for knowledge 对知识的渴望39. mean doing sth. 意味着做……40. never fail to do sth. 千万别忘了做谋事41. be thankful to sb. 对某人心存感激be thankful to sb. for sth. 因某事而对某人心存感激42. the end of ……的结尾the beginning of ……的开始43. ahead of 在……的前面，go ahead 好吧，去吧，干吧44. make mistakes = make a mistake in sth. 在……方面犯错45. along with = together with 与……在一起46. There will be = There is/are going to be 将会有……There be +sb. +doing ….有某人正在做……47. wait for sb. 等待某人wait for sb. to do sth. 等待某人做某事48. have the ability to do sth. 有做……的能力49. make one’s own choice 做某人自己的选择have no choice but to do sth. 除做……之外别无选择50. 人+ be responsible for …对……有责任be responsible to sb. 对某人负责51. go one’s s eparate ways 分路而行，分手separate A from B 把A与B分开（把两个整体分开）divide ….into…. 把一个整体分成若干部分52. set out 出发，启程set out for + 地点出发去某地set out to do sth. 着手开始做某事。
人教新目标九年级英语Unit 13 We are trying to save the earth!知识点汇总
Unit 13 We are trying to save the earth! Section A1.play a part in参与+n./pron./vingeg：I want to play a part in saving the earth.2.cut down减少动副短语cut短语cut in 插嘴cut off 切断cut up 切碎cut out 删除3.advantage优点可数名词have the advantage of有……的有利条件be to... advantage对……有利4.make a difference起作用；有影响make a difference （to...）（对……）产生影响或作用5.not only...but also...不但……而且……连接两个对等的成分，also 可以省略eg: I not only play tennis but (also) practise shootingeg: Not only Mr. Li but （also）his son loves the movie.连接两个主语时，就近原则eg:Not only does Miss Li like music, but (also) she likes sports6.harmful有害的do harm to对……造成伤害eg: Smoking will do harm to your health.be harmful to对…… 有害eg: Don't read in the sun. It is harmful to your eyes7.the number of……的数量eg：The number of girls in our class is 30辨析a number of许多接可数名词复数谓语动词用复数形式the number of……的数量接可数名词复数谓语动词用单三形式8.be against...反对反：be for...支持……eg: I am not against your idea. Instead, I'm for you9.现在进行时与now, at the moment, right now, these days...连用eg：She is watching TV now.现在进行时表将来与come，go，arrive，leave，start等动词连用eg: I’m leaving tomorrow10.现在完成时构成助动词have/has+ 动词的过去分词eg: Have you ever been to Japan ？固定结构have/has been to曾经去过某地，现在已不在某地eg: I have been to the USA twice.have/has gone to去某地了，可能在途中，也可能到了那里，总之人不在说话处eg: —Where's Jim?—He has gone to the library.have/has been in在某地呆了一段时间，经常与“for+ 一段时间”连用eg: We have been in this city for three years.11.被动语态基本结构be+ 动词的过去分词eg: The glass is broken转换主动语态We visited that factory last summer.被动语态That factory was visited by us last summer.感官动词/使役动词变为被动语态时带to主动: I often hear Mary sing in the next room被动：Mary is often heard to sing in the next room Section B1.recycle回收利用eg: We recycle all of our plastic bags.2.throw away扔掉；抛弃eg: You can throw them away if you don't want these clothes.3.pull...down拆下；摧毁put短语pull together齐心协力pull off脱去pull out拔出pull in(车等)停下,进站4.win a prize赢得奖品辨析win赢，获胜后接比赛、活动、奖品beat击败；打败后接人或团队等竞争对手5.set up建立set短语set off/out动身,出发set free释放set down写下,记下6.bring back恢复；归还；带回eg: Please bring back the books to the library.7.creativityn.creator创造者,发明v.create创造adj.creative创造性的Section A1.play a part in参与+n./pron./vingeg：I want to play a part in saving the earth.2.cut down减少动副短语cut短语cut in 插嘴cut off 切断cut up 切碎cut out 删除3.advantage优点可数名词have the advantage of有……的有利条件be to... advantage对……有利4.make a difference起作用；有影响make a difference （to...）（对……）产生影响或作用5.not only...but also...不但……而且……连接两个对等的成分，also 可以省略eg: I not only play tennis but (also) practise shootingeg: Not only Mr. Li but （also）his son loves the movie.连接两个主语时，就近原则eg:Not only does Miss Li like music, but (also) she likes sports 6.harmful有害的do harm to对……造成伤害eg: Smoking will do harm to your health.be harmful to对…… 有害eg: Don't read in the sun. It is harmful to your eyes7.the number of……的数量eg：The number of girls in our class is 30辨析a number of许多接可数名词复数谓语动词用复数形式the number of……的数量接可数名词复数谓语动词用单三形式8.be against...反对反：be for...支持……eg: I am not against your idea. Instead, I'm for you9.现在进行时与now, at the moment, right now, these days...连用eg：She is watching TV now.现在进行时表将来与come，go，arrive，leave，start等动词连用eg: I’m leaving tomorrow10.现在完成时构成助动词have/has+ 动词的过去分词eg: Have you ever been to Japan ？固定结构have/has been to曾经去过某地，现在已不在某地eg: I have been to the USA twice.have/has gone to去某地了，可能在途中，也可能到了那里，总之人不在说话处eg: —Where's Jim?—He has gone to the library.have/has been in在某地呆了一段时间，经常与“for+ 一段时间”连用eg: We have been in this city for three years.11.被动语态基本结构be+ 动词的过去分词eg: The glass is broken转换主动语态We visited that factory last summer.被动语态That factory was visited by us last summer.感官动词/使役动词变为被动语态时带to主动: I often hear Mary sing in the next room被动：Mary is often heard to sing in the next room Section B1.recycle回收利用eg: We recycle all of our plastic bags.2.throw away扔掉；抛弃eg: You can throw them away if you don't want these clothes.3.pull...down拆下；摧毁put短语pull together齐心协力pull off脱去pull out拔出pull in(车等)停下,进站4.win a prize赢得奖品辨析win赢，获胜后接比赛、活动、奖品beat击败；打败后接人或团队等竞争对手5.set up建立set短语set off/out动身,出发set free释放set down写下,记下6.bring back恢复；归还；带回eg: Please bring back the books to the library.7.creativityn.creator创造者,发明v.create创造adj.creative创造性的。
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Unit 13 We are trying to save the earth!
一．教材知识详解
Section A
1.The air has become really polluted around here.
(1)现在完成时（复习）
(2)become
2.Well, cut down air pollution, we should take the bus or subway instead of driving.
(1)cut down
(2)instead of 与instead
3.There are other advantages of bike riding. It’s good for health and it doesn’t cost anything!
考点：advantage
4.And remember to throw rubbish in the bins and keep public places clean and beautiful for everyone.
(1)remember to do remember doing
(2)系动词keep
(3)everyone与every one
5.Many have heard of shark fin soup.
hear of 听说
hear短语归纳：
6.When people catch sharks, they cut off their fins and throw the shark back into the ocean.
cut off 连接名词或代词时，名词或代词应放在_________________________
cut短语归纳：
off短语归纳：
7.This method is not only cruel, but also harmful to the environment.
(1)cruel
(2)not only...but also
(3)be harmful to
8.So far, no scientific studies have shown that shark fins are good for health, so why eat them
考点：so far
9.Many believe that sharks can never be endangered because they are the strongest in their food chain.
(1)the strongest
(2)Endanger
10.afford /spend/take/cost/pay
Section B
1.Do you often throw away things you don’t need anymore
考点：throw away
2.Have you ever thought about how these things can actually be put to good use (1)think about
(2)put ...to good use
*put 其他短语：
3.She lives in a house in the UK that she built herself out of rubbish.
(1)built...out of sth
(2)定语从句复习
4.The windows and doors come from old buildings around her town that were pulled down.
考点：pull down
*pull其他短语：
5.She opened a small shop where she sells her bags, and she has also set up a website to sell them on line.
(1)This is the city where I was born.
(2)set up
*set相关短语：
6.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.
(1)not only...but also...
(2)bring...back to life
(3)others
二．语法复习
1.现在进行时
ed to
3.被动语态
4.现在完成时
5.情态动词【基础训练】【能力提升】。