Unit 13 We’re trying to save the earth!教学设计（21页）

人教版新目标 九 年级英语教学设计
Teaching content Unit 13 We’re trying to save the earth! Section A (1a-2d) 课时安排 共 6课时 主备教师
第 1 课时 授课人
Knowledge aims 1.学习并掌握单词litter, adv ( http: / / www.21cnjy.com )antage, bottom, fisherman, coal, ugly, cost, wooden, plastic, take away短语be harmful to, at the top(of sth.) , take part in。2.能正确运用现在完成时，情态动词和used to 句型。
Ability aims 能正确运用现在完成时，情态动词和used to 句型
Emotionalaims 让学生有环境危机意识，学会关注环境保护环境
Key points 1.能正确运用现在完成时，情态动词和used to 句型2.保护环境的措施方法。
Difficult points 1．能正确运用现在完成时，情态动词和used to 句型
Teaching methods 1.情景教学法 2.讲授法
Teaching tools ppts and tapes 2.Exercises books
Teaching procedures 个人意见修订
Teaching steps:Step I: Review1.检查生词的预习情况。Step II :New lesson1.Presentation： 1.Lead inShow the picture of t ( http: / / www.21cnjy.com )he earth and tell students the earth is polluted now. For example:(1) The factories that burn coal pollute the air with a lot of black smoke.(2) Factories put waste into the river.(3) People should throw away litter in the bin.(4)There are more cars on the road.2. Learning1.1a Here are some wo ( http: / / www.21cnjy.com )rds related to different kinds of pollution. Write them in the box below. Then add more words.loud music cars rubbish planes littering ships factories smoking building houses mobile phonesnoise pollution air pollution water pollution ____________ ___________ _________________________ ___________ _________________________ ___________ _________________________ ___________ _____________Keys : noise ( http: / / www.21cnjy.com )pollution loud music planes mobile phones building housesair pollution factories smoking cars building houseswater pollution ships rubbish littering factories2.Listen and do(1b, 2a, 2b)(1)教师先帮助学生明确要求， 并且给出—定的指导。(2)让学生朗读其中的句子、问题。(带着问题听录音能提高学生听的质量和信心)播放录音， 核对答案。Keys: 1b really di ( http: / / www.21cnjy.com )rty rubbish fish litter waste government close down clean up 2a B A 2b more cars pollute are throwing away public places3.Pairwork（1c and 2c）4.To learn 2d①. Read 2d and complete the chart.ProblemsSolving problemsair pollutionwaste pollutionwooden (木头的) chopsticks or plastic forksrubbish②. Role-play the conversation.③.language points1. This is turning beautiful places into ugly ones. turn… into… 把……变成……2. It’s good for health and it doesn’t cost anything! cost v. 花费；使付出 ( http: / / www.21cnjy.com )指花费金钱，主语通常是物。cost的过去式和过去分词均为cost。 take，spend，pay和cost都可以表示“花费”，但它们的用法各有不同。1) take多表示花费时间，常用于It takes sb. some time to do sth.这一句型中，其中it作形式主语。2)spend多表示花费时间和金钱 ( http: / / www.21cnjy.com )，主语通常是人，常用于sb. spend(s) some time / money on sth.和sb. spend(s) some time / money (in) doing sth.两种句型。3) pay多表示花费金钱，主语通常是人，常用于sb. pay(s) some money for sth.句型。 e.g. Tommy paid 20 yuan for his breakfast yesterday.cost多表示花费金钱，主语通常是物，常用于sth. cost(s) (sb.) some money. 句型。根据句意用take, spend, pay或cost的适当形式填空。1) That new car ________ them lots of money.2) Mona __________ 50 yuan on the books just now.3) It usually _______ me an hour to do my homework.4) You should __________ some time practising your pronunciation.5) My brother _______ 6, 000 yuan for the new computer yesterday.Keys cost spent takes spend paid3. So together, our ac ( http: / / www.21cnjy.com )tions can make a difference and lead to a better future! make a difference (to…) 表示(对……)产生影响或作用e.g. The new ( http: / / www.21cnjy.com ) teacher always encourages little Tom. This has made a big difference to him.新来的老师总是鼓励小汤姆，这对他影响很大。Step III:Practice:用动词的适当形式填空。1) We’re trying _______ (save) the earth.2) There used to_____ (be) clean and beautiful.3) There are too many ______ for ________to catch (fish).4) It’s bad for environment to use _________ (wood) chopsticks.Keys: to save be fish fishermen woodenStep IV:summary: The earth is ( http: / / www.21cnjy.com ) badly polluted. Please make a poster and think of what we can do.Step V homework: 1. Copy the new words and remember them. 2. Read the listening materials of 1b, 2a. 二次备课 三次备课
Bb design: Unit 13 We’re trying to save the earth! Section A (1a-2d) try to do =try one’s best to do 努力去做某事。 be related to 与…有关 play a part in 在……方面起作用
教后感悟 成功之处：不足之处：改进措施：
人教版新目标 九 年级英语教学设计
Teaching content Unit 13 We’re trying to save the earth!Section A(3a 3b) 课时安排 共 6 课时 主备教师
第 2 课时 授课人
Knowledge aims Let students master the ( http: / / www.21cnjy.com )words:shark, fin, method, cruel. harmful, chain, ecosystem, industry, law, scientific, Let students master the phrases: no longer not only…but also… be harmful to at the top of
Ability aims 进一步提升学生的阅读和朗读能力。
Emotional aims 有环境危机意识，学会关注环境保护环境
Key points 1. Let students master the words and phrases in this passage
Difficult points How to let students understand the passage
Teaching methods 1.Reading 2. Analysing
Teaching tools 1．ppts and tapes 2.Text books
Teaching procedures 个人意见修订
Teaching steps:Step I: Review1.Role-play 2d.2.Translate these sentences into English.①甚至是河底都满是垃圾。②骑自行车有其它的优点。③这个小镇上的每个人都应该参加打扫。④我买外卖食品从来不拿木筷子和塑料叉子。Step II :New lessonPresentation：1.Lead inTeacher tells stu ( http: / / www.21cnjy.com )dents the earth is badly polluted. What should we do to save the earth Let’s take action. For example:①Turn off the lights when you leave a room ②Take buses instead of driving cars ③Recycle books and paper.There are some anima ( http: / / www.21cnjy.com )ls are endangered. We should do something to protect the animals and the environment! 2.Discussion (1) Have you ever seen a shark (2) What do you know about sharks 3.Reading(1)Read the passage and judge the sentences.①Shark’s fin（鱼鳍）soup is famous and expensive all around the world.②We have to kill a whole shark to get a bowl of shark’s fin soup.③People cut off sh ( http: / / www.21cnjy.com )arks’ fins and throw the sharks back into the ocean.④Sharks are in the bottom of the food chain in the ocean’s ecosystem.⑤WildAid and the WWF are environmental protection groups in China.⑥Shark’s fins are good for health.(2)Complete the fact sheet in 3a. Where shark fin soup is popular Number of sharks caught and traded every yearHow much the numbers of some kinds of sharks have fallen in the last 20 to 30 yearsTwo environmental groups which are against “finning”Language points1. A shark can no l ( http: / / www.21cnjy.com )onger swim and slowly dies. 鲨鱼不能再游泳然后慢慢死掉。 no longer意思是“不再” e.g. I’m no longer a student. 我不再是个学生了。 有两个短语和no longer同义，即not…any longer和not…any more，但他们侧重的方面不同。no longer和not…any longer侧重时间。 e.g. He no longer lives here.= He doesn’t live here any longer. 他不在这儿居住了。(一个时间以前他住在这儿，过了这个时间，他就离开了。) not…any more侧重侧重程度和数量e.g. You can drink no more. = You can’t drink any more. 你不能再喝了。(喝酒的量到了一定程度，不能再继续下去了。) 2. This method ( http: / / www.21cnjy.com )is not only cruel, but also harmful to the environment.这种方法不但残忍而且对环境有害。not only…but also…用 ( http: / / www.21cnjy.com )于连接两个表示并列关系的成分，着重强调后者，其意为“不仅……而且……”; 其中的also有时可以省略。e.g. 1) She not only plays well, but also writes music. 她不仅很会演奏，而且还会作曲。 2) Not only men but also women were chosen. 不仅仅是男的，女的也有被选中的。 若连接两个成分作主语，其谓语通常与靠近的主语保持一致。e.g. Not only you but also he has to leave. 不只是你，他也得离开。 not only放在句首，后接句子时要用倒装结构。 e.g. Not only had the ( http: / / www.21cnjy.com ) 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。 be harmful to 对… 有害3. Sharks are ( http: / / www.21cnjy.com )at the top of the food chain in the ocean’s ecosystem. 鲨鱼位于海洋生物系统食物链的顶部。at the top of 在...最高地位; 用最高[最大]的(速度, 声音等) e.g. I looked at th ( http: / / www.21cnjy.com )e top of his head, his hair shiny and parted smoothly. 我看他的头顶, 头发光亮, 分得平滑。4. If their numbers ( http: / / www.21cnjy.com ) drop too low, it will bring danger to all ocean life. 如果它们的数目降至过低，会给所有海洋生物带来危险。此句复数形式的number表达全海洋中鲨鱼的总量。当表示数值的高或低时，number要用high或low修饰。e.g. In that country ( http: / / www.21cnjy.com ), the number of children going to school is higher in cities than in towns and village.在那个国家，城市儿童入学人数比乡镇及农村要高。常与number搭配的动词有grow, fall等。e.g. The number of fam ( http: / / www.21cnjy.com )ilies that own cars has been growing quickly recently.近来拥有轿车的家庭数量增长很快。5. Environment pro ( http: / / www.21cnjy.com )tection groups around the world, such as WildAid and the WWF, are teaching the public about “finning”. 世界各地的环境保护组织，如野生救援协会和世界自然基金会，都在教育公众有关“猎翅”的行为。1) 句中fin本为名词，指 “鱼鳍” ( http: / / www.21cnjy.com )。此句中的finning由动词化的fin（割鲨鱼鳍以获取鱼翅）的-ing形式转化而成，指课文中所陈述的 “猎翅”这一行为。2) WildAid和WWF组织WildAid（美国野生救援协会）是保护 ( http: / / www.21cnjy.com )野生动物及栖息地环境的一个非盈利性的机构，1999年注册成立，其宗旨是保护及救助世界范围内的野生动物；WWF（世界自然基金会）英文全称为World Wide Fund for Nature，成立于1961年，是享有国际盛誉，全球最大的独立性非政府环境保护组织之一。Step III:Practice:(3b)(1) Read the pass ( http: / / www.21cnjy.com )age and dill in the blanks with the words in the box.1. Many people do ( http: / / www.21cnjy.com )not realize they are killing a whole shark ______ they enjoy a bowl of shark fin soup.2. Sharks are at th ( http: / / www.21cnjy.com )e top of the food chain, ____ if their numbers drop, the ocean’s ecosystem will be in danger.3. Many think ( http: / / www.21cnjy.com )that sharks are too strong to be endangered, _____ they are wrong.4. _________ there are no scientific studies to support this, a lot of people believe that shark fins are good for health.5. Sharks may disappe ( http: / / www.21cnjy.com )ar one day ___ we do not do something to stop the sale of shark fins.Step IV:summary: Sum up the important in this lesson.Step V:.homework:Write 5 measures to protect the environment. 二次备课 三次备课
Bb design: Unit 13 We’re trying t ( http: / / www.21cnjy.com )o save the earth! Section A (3a-Grammar Focus) no longer意思是“不再” be harmful to 对… 有害 at the top of 在...最高地位
教后感悟 成功之处：不足之处：改进措施：
人教版新目标 九 年级英语教学设计
Teaching content Unit 13 We’re trying to save the earth!Section A (Grammar Focus-4c) 课时安排 共 6 课时 主备教师
第 3 课时 授课人
Knowledge aims 1.Let students master ( http: / / www.21cnjy.com )the words: afford, reusable, transportation 2. Let students master the phrases: take part in
Ability aims 1 进一步提升学生的理解能力和对所学知识的活学活用能力。
Emotional aims 让学生活学活用，动脑思考。
Key points 1. Let students master the words and phrases in this part.
Difficult points How to let students finish the exercises.
Teaching methods 1.Reading 2.Analysing 3.Doing exercises.
Teaching tools 1．ppts 2.Text books
Teaching procedures 个人意见修订
Teaching steps:Step I: Review1. Check if you know these phrases.① 不同种类的污染 ② 河底③ 把垃圾扔到河里 ④ 在…中起作用⑤ 在中国南部 ⑥ 对……有害⑦ 在……顶部 ⑧ 海洋生态系统2. Translate these sentences into English.
① 甚至是河底都满是垃圾。② 这个方法不仅残酷还对环境有害。③ 鲨鱼处于海洋食物链的顶部。④ 许多人相信鱼翅对健康有好处。Step II :New lessonPresentation：Grammar FocusPay attention to the sentences.4) No scientif ( http: / / www.21cnjy.com )ic studies have shown that shark fins are good for health.5) We should help save the sharks.1. 现在进行时: Present Progressive定义：表示说话时（瞬间）正在进行的动作，也表示目前或现阶段一直进行的动作。结构: be (am/is/ are) + v.-ing标志词：Look, Listen, now, right now…2. used to do与be used to doingused to do sth. ( http: / / www.21cnjy.com )表示过去常常做某事, 而现在往往不做了, 后接动词原形。be used to doing sth. 表示习惯于做某事。e.g. I used to get up at six o’clock. Joe is used to drinking a cup of coffee every morning.3. 被动语态：Passive voice定义：表示主语是动作的承受者，即行为动作的 ( http: / / www.21cnjy.com )对象的一种语态。结构：be + 过去分词e.g. A new school was built last year. 4. 现在完成时: Present Perfect定义：表示动作已经完成, 但对现在造成影响; 或者表示从过去某一时间开始一直延续到现在并还可能持续下去的动作。 结构: has/have + 过去分词标志词：already, yet, ever, never, since, for…e.g. I haven’t finished my homework yet.5. 情态动词1) 情态动词本身有一定的词义，表示说 ( http: / / www.21cnjy.com )话人的情绪、态度或语气，但不能单独作谓语，只能与其他动词构成谓语。常见的有：can (could), may (might), must, need, shall (should), will (would)等。2) 情态动词无人称和数的变化, ( http: / / www.21cnjy.com )后接动词原形。否定式是在情态动词后面加not。个别情态动词有过去式形式, 可用来表达更加客气、委婉的语气。e.g. Ken can climb up the tress like a koala. Tracy could ride a bicycle when she was five years old. You mustn’t play with fire. It is dangerous.Step III:Practice:Work on 4a. Fill ( http: / / www.21cnjy.com ) in the blanks with the correct forms of the verbs in brackets.Work on 4b. Fill in ( http: / / www.21cnjy.com ) the blanks with the appropriate modal verbs from the box. The words are:can,would,could, have to,should, must, may/might 3. Work on 4c. Ma ( http: / / www.21cnjy.com )ke a list of things that people can do to help the environment and discuss your list with your partner. use public transportation (n.交通运输);turn off the lights when you leave a room;use reusable bags instead of plastic bags;ride your bike or walk to school or work;stop using paper napkins;recycle books and paper… 4. Discussion. A: I think that everyone should use public transportation.B: I disagree. It’ ( http: / / www.21cnjy.com )s difficult for parents with young children to use public transportation…Step IV:summary: Sum up the important in this lesson.Step V.homework:Finish the exercises in the workbook. 二次备课 三次备课
Bb design: Unit 13 We’re trying to save the earth!Section A (Grammar Focus-4c)
教后感悟 成功之处：不足之处：改进措施：
人教版新目标 九 年级英语教学设计
Teaching content Unit 13 We’re trying to save the earth!Section B (1a-1e) 课时安排 共 6课时 主备教师
第 4 课时 授课人
Knowledge aims 1.To learn to use s ( http: / / www.21cnjy.com )hould / shouldn’t do and discuss about what can we do help save the earth 2.To listen the conversation and train students’ listening ability.
Ability aims 灵活运用should / shouldn’t + do，来谈论本课时的话题。Train students’ listening ability
Emotional aims 通过让学生谈论生活中熟悉的话题，使他们学会热爱生活，保护环境。
Key points 1．学习并掌握一些词汇及短语。2．能用should (not) do sth.描写允许做的事和不允许做的事。3.掌握动名词做主语的用法。
Difficult points 掌握动名词做主语的用法。
Teaching methods 1.情景教学法 2.讲授法
Teaching tools 1．ppts and tapes 2.Exercises books
Teaching procedures 个人意见修订
Teaching steps:Step I: ReviewRole-play this conversation.A: I think that everyone should use public transportation.B: I disagree. It’s difficult for parents with young children to use public transportation…A: But we ca ( http: / / www.21cnjy.com )n do other things. For example, we can go to school on foot.B: You are right. We should turn off the lights when we leave the room.Step II :New lessonPresentation：1.Leading in (1) Tell student ( http: / / www.21cnjy.com )s we should do these things to protect the environment. Turn off the lights when you leave a room; Stop riding in cars; Stopping using paper towels or napkins; Recycle books and paper. Turn off the shower while you are washing your hair. You can hel ( http: / / www.21cnjy.com )p reduce pollution by putting that soda can in a different bin. Don’t use paper napkins.(2)What can we do ( http: / / www.21cnjy.com ) to help save the earth Rank these items from the easiest (1) to the most difficult(5). (1a)______stop riding in cars______recycle books and paper______turn off the lights when you leave a room______turn off the shower while you are washing your hair______don’t use paper napkins(3)Compare your answers in 1a with your partner.2.Listening 1c&1d (1)Listen and ch ( http: / / www.21cnjy.com )eck (√ ) the things that Julia and Jack talk about.(2)Check ( √ ) the things that Julia is doing now, the things she will do in the future and the things she would never do.(3)Check the answers with the whole class.Things Julia and Jack talk aboutThings Julia is doing nowThings Julia will do in the futureThings Julia Would never do__turning off the light ___ turning off the shower __not using paper napkins __taking your own bags when shopping. __not riding in cars ___ riding a bike ___recycling paper (4)Listen again and answer the questions below.①Who read a book ②Would Julia turn off the shower when she is washing the hair ③Does Jack live close to school (Get one student to write the answers on the blackboard.Keys: Jack. No, she would never do that. Yes, he does.)Step III:Practice:(1)Make a con ( http: / / www.21cnjy.com )versation using the information from the chart in 1c. Say what is true for you.(2)Guessing gameShow some pictu ( http: / / www.21cnjy.com )res to students and get them to guess what these things are made from.Step IV:summary: What have we learned today Step V homework: 1.Write methods about protecting environment2.Preview the new words and expressions 二次备课 三次备课
Bb design: Unit 13 We’re trying to save the earth! Section B (1a-1e)
教后感悟 成功之处：不足之处：改进措施：
人教版新目标 九 年级英语教学设计
Teaching content Unit 13 We’re trying to save the earth!Section B (2a 2e) 课时安排 共 6 课时 主备教师
第 5课时 授课人
Knowledge aims 掌握课文中出现的一些新词汇和词组表达。 2．根据阅读材料的内容提取要点， 实现对文章内容的理解
Ability aims 进一步提升学生的阅读和朗读能力。
Emotional aims 让学生热爱生活，保护环境，提出自己的观点和想法。
Key points 1.Let students master the words and phrases in this passage.2.Improve students’ reading ability
Difficult points How to let students understand the passage.2. 掌握谓语动词被动结构的用法及含义。
Teaching methods 1.Reading 2. Analysing
Teaching tools 1．ppts and tapes 2.Text books
Teaching procedures
Teaching steps:Step I: Review让学生两人一组讨论：What can we do to help save the earth Step II :New lesson1.Presentation：1. Lead inUse pictures to presentation the new words. To learn 2b(1)Read the passage and answer the questions below①Who is Amy Hayes ②How many people are mentioned in the passage Who are they Keys: She is a unusual woman in the UK.Three. They are Amy Hayes, Jessica Wong and Wang Tao.(2)Read the passage and complete the chart below.(3)Read paragraph 2 and answer the questions.①Did she win an award What was it from ②Where did her windows and doors come from ③What does the sentenc ( http: / / www.21cnjy.com )e “she lives in a house in the UK that she built herself out of rubbish” mean Keys: Yes, she did. It was from the Help Save Our Planet Society.They came from old buildings around her town that were pulled down.她住在英国，房子是她自己用废弃物建造而成。(4)Read paragraph 3 and answer the questions.①Is Jessica Wong good at recycling What does she do ②Where does she sell her bags ③What will she write in her book Keys: Yes, she is. She u ( http: / / www.21cnjy.com )ses old clothes that people don’t wear anymore to make bags.Her shop and website. New ways to use old clothes.(5)Read paragraph 4 and answer the questions.①What does Wang Tao hope to set up Why ②Translate t ( http: / / www.21cnjy.com )he sentence “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 .” into Chinese.Keys: A “metal art” theme park. Because he wants to show people the importance of environmental protection.艺术不但可以给人们带来快乐，而且也说明只需要一点创造力，即使是冰冷、坚硬的铁也可产生活力。Language points1.Do you often throw away things you don’t need anymore 1) throw away扔掉，丢弃浪费 (机会、优势或好处) 2) 错过(机会等)，放过；未能很好利用(机会等)e.g. Don’t throw away this opportunity. 不要错过这个机会。3) 浪费(时间、金钱等)乱花(钱等)2. Have you ( http: / / www.21cnjy.com )ever thought about how these things can actually be put to good use put sth. to good use 好好利用e.g. Your creative ( http: / / www.21cnjy.com ) talents can also be put to good use, if you can work up the 3.She lives in a ho ( http: / / www.21cnjy.com )use in the UK that she built herself out of rubbish. build/make ... out of 用……建造/制造e.g. He built a model ship out of wood. 他用木头造了个模型船。4. The top of the house is an old boat turned upside down.turned upside down 意为“被翻转过来的；被颠倒过来的”，做后置定语修饰boat。5. And the gate in f ( http: / / www.21cnjy.com )ront of her house is made of rocks and old glass bottles. be made of和be made from都表示“由……制成”.6. He is known for using iron.be known for 因……而著名 be known as 作为……而著名 be known to 对于某人来说是著名的Not only can the art bring happiness to others, but it also shows that even co ( http: / / www.21cnjy.com )ld, hard iron can be brought back to life with a little creativity (n. 创造力).bring back 恢复；使想起；归还not only ... but (also) ... 表示“不但……而且……”。本句中的Step III:Practice: Practice 2c and 2dFill in the blanks wit ( http: / / www.21cnjy.com )h the correct forms of the phrases in the box. (2c) Keys: pulled d ( http: / / www.21cnjy.com )own; put to good use; built out of; set up; known for; not only; but alsoUnderline the wor ( http: / / www.21cnjy.com )ds in the passage based on the words below. What are the differences （2d)keys: think – rethink special – especially use – reuse, useful recent – recently usual – unusual environment – environmentalrecycle – recycling important – importancebuild – building protect – protectioncreate – creative; creativity inspire – inspiration(3)Discussion 2eKeys: Things which can be done by people every day: take your own bags when you go shoppingspend less time in the showerturn off the lights when you leave a roomtake public transport rather than driveavoid using air conditionersStep IV:summary: What have we learned today Step V home Survey the students in our class.Then take a class vote.Do you…Names recycle paper turn off lights in the house 二次备课 三次备课
Bb design: Unit 13 We’re trying to save the earth! Section B (2a 2e)
教后感悟 成功之处：不足之处：改进措施：
人教版新目标 九 年级英语教学设计
Teaching content Unit 13 We’re trying to save the earth! Section B 3a-Self Check 课时安排 共 6 课时 主备教师
第 6课时 授课人
Knowledge aims 加深对目标语言的理解与运用。 2.掌握本单元的重点词汇并灵活运用。
Ability aims 1 进一步提升学生的听力、阅读、朗读能力和写作能力。
Emotional aims 让学生学会热爱生活，保护环境，提出自己的观点和想法。
Key points 1.Let students ( http: / / www.21cnjy.com ) master the words and phrases in this unit2.Improve students’ using ability of the knowledge that they have learned.
Difficult points Improve students’ usin ( http: / / www.21cnjy.com )g ability of the knowledge that they have learned.
Teaching methods 1.Reading 2. Analysing 3.Doing Exs
Teaching tools 1．ppts and tapes 2.Text books 3. Exs book
Teaching procedures 个人意见修订
Teaching steps:Step I: Review(1)Write down these phrases.停止乘小汽车 回收纸用纸巾 好好利用用垃圾建造房 倒置 经营小生意 ( http: / / www.21cnjy.com ) 回复，归还 旧玻璃瓶 拆下 一个有创意的大脑 开一个小店 更受欢迎的作品 给他人带来欢乐(2)Talk about 2b with your partner.Step II :New lessonPresentation：(1)What should we do to save the earth Turn off the lights when we leave a room.Take our own bags when shopping.Ride a bike. Recycle paper.Don’t use paper napkins.2.Writing (1) Work on 3a. Which ( http: / / www.21cnjy.com )parts of the town/ city have a nice environment Why are they nice Which parts need to be improved Why Good environmentWhyBad environmentWhy Fill in the chart about your city.(2) Work on 3b.Write a letter ( http: / / www.21cnjy.com )to the city major about the problem and your suggestions.In your letter, descri ( http: / / www.21cnjy.com )be the environmental problems in your town/city. ① What are the problems ② Where are they ③ What or who is causing these problems Then, give suggestions or possible ways to solve the problems.I think that…We should/ could…I suggest…本次写作内容是一封书信,信 ( http: / / www.21cnjy.com )中首先要介绍你所在城市存在有哪些环境问题，是谁造成的这些问题，然后提出解决这些环境问题的方法和措施，可以结合3a中列举的问题和前面学过的解决办法来完成这封信。 One possible version Dear Sir/ Madam, Environmental ( http: / / www.21cnjy.com ) problems are becoming more and more serious all over the world. With the development of the society, there are too many cars on the streets in our city. Cars have made the air unhealthy for people to breathe. Black smoke and poisonous gas are given off by factories. Factories also put waste into the river. And wherever we go, we can find rubbish.Now more and more ( http: / / www.21cnjy.com )people have realized these problems. I think that governments should close down the factories and develop laws to stop people from driving cars every day. I suggest everyone in this town should help to clean up the river and the streets. We should call on everyone in the town to throw rubbish in the dustbins. I hope the pro ( http: / / www.21cnjy.com )blem will be solved in the near future and our home will become better and better. Step III:Practice: Help students finish self check1-3Step IV:summary: What have we learned today Step V:.homework: Finish your passage of 3b. 二次备课 三次备课
Bb design: Unit 13 We’re trying to save the earth! Section B 3a-Self Check
教后感悟 成功之处：不足之处：改进措施：