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1、精选优质文档-倾情为你奉上Unit 13 Were trying to save the earth! 全单元教案一、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, up
2、side, 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：Were trying to save the earth! The river used to be so clean. The air is badly pollute
3、d. 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used to 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。 （2）保护环境的措施方法。2. 教学难点：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。三
4、、教学步骤:Period 1 Section A 1 (1a-2d)Step 1 PresentationShow the picture of the earth and tell students the earth is polluted now. Factories pour dangerous gases into the air.Cars also pour dangerous gases into the air.Some people smoke in public places. We must think of better way to treat our planet
5、in future.Step 2 Learning 1aHere are some words related to different kinds of pollution. Write them in the box below. Then add more words.Step 3. Listening1. 1b Listen and complete the sentences.2. Listen again and check () the sentences you hear.Step 4 Practice1. Role-play the conversation in 1c.St
6、ep 5 Language points1. Were trying to save the earth! 我们正在竭尽全力拯救地球! try to do =try ones best to do 努力去做某事。 e.g. Every student should try to study hard in order to study in a university. 为了进入大学学习，每个学生都应该努力学习。2. Here are some words related to different kinds of pollution. be related to 与有关 e.g.I am no
7、trelatedtohim in any way. 我和他无任何关系。 3. Everyone in this town should play a part in cleaning it up! play a part in 在方面起作用 e.g. A good diet plays a large part in helping people live longer. 健康的饮食在帮助人们长寿方面起着非常大的作用。play a part 在中扮演角色 e.g. He was invited to play a part in this TV play. 他被邀请参加这个电视剧的演出。4.
8、Even the bottom of the river was full of rubbish. Yes, but people are throwing litter into the river.litter 和 rubbish 都可指“垃圾”，用作不可数名词。rubbish 指“没用的东西(被扔或将要丢弃的无用的东西)”不可回收。litter 指“(室内或公共场所)乱扔的废物(纸屑、不要的包装纸、废瓶等)”还可回收e.g. Throw the rubbish out. 把垃圾扔出去。 The room is full of rubbish. 房间里堆满了垃圾。 Pick up your
9、 litter after a picnic. 野餐后将废弃物收拾好。 Step 6 Listening1.2a Listen to the interview. Circle the kinds of pollution that Jason and Susan talk about.2. 2b Listen again and complete the sentences.3. Listen and answer the questions.1) Who is the interviewer talking to?2) What are they talking?3) What other
10、 problems do they see?Keys: Susan and Jason.The environmental problems.Theres too much rubbish and waste in the streets.Step 7 Practice (2c)Use the information in 2a and 2b to role-play conversations between Jason and Susan.Step 8. Reading1. Read 2d and complete the chart.ProblemsSolving problemsair
11、 pollutionwaste pollutionwooden (木头的) chopsticks or plastic forksrubbish2. Role-play the conversation.Step 9 Summary and language points1. This is turning beautiful places into ugly ones. turn into 把变成e.g. The icy rain seemed like to turn into snow. 渐渐地冻雨又变成雪花的模样。 2. Its good for health and it doesn
12、t cost anything! cost v. 花费；使付出 指花费金钱，主语通常是物。cost的过去式和过去分词均为cost。 e.g. The new shirt cost Mr Wang 200 yuan. 王先生花了200元买了新衬衫。 How much does the new computer cost? 新电脑花了多少钱？take, spend, pay & costtake，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。
13、 e.g. It usually takes me 40 minutes to cook the dinner.2) spend多表示花费时间和金钱，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。 e.g. David spent 2,000 yuan on the new machine. My father spends an hour (in) watching the news on TV every day.3) pay多表示花费金
14、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.4) 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。 e.g. The new dress cost Linda 88 yuan.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 jus
15、t 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 actions can make a difference and lead to a better future! make a difference (to) 表示(
16、对)产生影响或作用 e.g. Do you think his words would make any difference to the final decision? 你认为他的话会对最后的决定产生影响吗？ The new 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 9 ExercisesStep 10 Homework1. Review the new words and expressions.2. Practice the
17、conversation in 2d.Period 2 Section A 2 (3a-3c)Step 1 RevisionRole-play 2d.Translate these sentences into English.甚至是河底都满是垃圾。这个小镇上的每个人都应该参加打扫。骑自行车有其它的优点。我买外卖食品从来不拿木筷子和塑料叉子。Step 2. Warming upThe earth is badly polluted. What should we do to save the earth?Step 3 Discussion(1) Have you ever seen a sha
18、rk?(2) What do you know about sharks? Step 4. ReadingSharks are endangered, read the passage and judge the sentences.Sharks fin（鱼鳍）soup is famous and expensive all around the world.We have to kill a whole shark to get a bowl of sharks fin soup.People cut off sharks fins and throw the sharks back int
19、o the ocean.Sharks are in the bottom of the food chain in the oceans ecosystem.WildAid and the WWF are environmental protection groups in China.Sharks fin s are good for health.Complete the fact sheet in 3a. Step 5. Language points1. A shark can no longer swim and slowly dies. 鲨鱼不能再游泳然后慢慢死掉。no longe
20、r意思是“不再” Im no longer a student. 我不再是个学生了。 有两个短语和no longer同义，即notany longer和notany more，但侧重的方面不同。no longer和notany longer侧重时间。 He no longer lives here.= He doesnt 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。) notany more侧重侧重程度和数量You can drink no more. = You cant drink any more. 你不能再喝了。(喝
21、酒的量到了一定程度，不能再继续下去了。) 2. This method 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 onlybut also用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。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
22、连接两个成分作主语，其谓语通常与靠近的主语保持一致。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。 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。 be harmful to 对 有害Smoking is harmful to the health. 吸烟有损健康。 Playing computer games much is harmful
23、to students. 电脑游戏玩太多对学生有害。3. Sharks are at the top of the food chain in the oceans 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) I looked at the top of his head, his hair shiny and parted smoothly. 我看他的头顶, 头发光亮, 分得平滑。 He shouted at the top of his voice in order that he might be h
24、eard. 他尽力大声叫喊, 以便别人能听见。4. If their numbers 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。In that country, the number of children going to school is higher in cities than in towns andvillage. 在那个国家，城市儿童入学人数比乡镇及农村要
25、高。常与number搭配的动词有grow, fall等。The number of families 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 protection 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”
26、。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 6 Practice (3b)(1) Read the passage and dill in the blanks with th
27、e words in the box.(2) Retell the passage according to the words below.Step 7 Exercises:Step 8. HomeworkWrite 5 measures to protect the environment.Period 3 Section A 3 (Grammar Focus-4c)Step 1. Revision1. Check if you know these phrases. 不同种类的污染 河底 把垃圾扔到河里 在中起作用 在中国南部 对有害 在顶部 海洋生态系统2. Translate the
28、se sentences into English. 甚至是河底都满是垃圾。 这个方法不仅残酷还对环境有害。 鲨鱼处于海洋食物链的顶部。 许多人相信鱼翅对健康有好处。Step 2. Grammar FocusPay attention to the sentences.1) Were trying to save the earth.2) The river used to be so clean.3) The air is badly polluted.4) No scientific studies have shown that shark fins are good for healt
29、h.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 nowe.g. Look! The boy is crying.2. used to do与be used to doingused to do sth. 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.
30、 I used to get up at six oclock. 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，即行为动作的对象的一种语态。结构：be + 过去分词e.g. A new school was built last year. Our classroom is cleaned every day.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
31、动作。 结构: has/have + 过去分词标志词：already, yet, ever, never, since, fore.g. I havent 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, 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
32、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 mustnt play with fire. It is dangerous.Step 3. Practice1. Work on 4a. Fill in the blanks with the correct forms of the verbs in brackets.2. Work on 4b. Fill in the blanks with the appropri
33、ate modal verbs from the box. The words are:3. Work on 4c. Make a list of things that people can do to help the environment and discuss your list with your partner. 4. Discussion. A: I think that everyone should use public transportation.B: I disagree. Its difficult for parents with young children t
34、o use public transportationStep 4 Exercise:Step 5. HomeworkWrite an article to show in what way we students can protect the environment. Period 4 Section B 1 (1a2e)Step 1. RevisionRole-play this conversation.A: I think that everyone should use public transportation.B: I disagree. Its difficult for p
35、arents with young children to use public transportationA: But we can 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 2. Leading in(1) Tell students we should do these things to protect the environment. (2)What can
36、we do to help save the earth? Rank these items from the easiest (1) to the most difficult(5). (1a)(3) Compare your answers in 1a with your partner. Step 3. Listening 1c&1dStep 4 . PracticeStep 5. Reading Use pictures to presentation the new words. Read the passage and answer the questions belowWho i
37、s Amy Hayes?How many people are mentioned in the passage? Who are they?Read the passage and complete the chart below.Read paragraph 2 and answer the questions.Did she win an award? What was it from?Where did her windows and doors come from?What does the sentence “she lives in a house in the UK that
38、she built herself out of rubbish” mean?Read paragraph 3 and answer the questions.Is Jessica Wong good at recycling? What does she do?Where does she sell her bags?What will she write in her book?Read paragraph 4 and answer the questions.What does Wang Tao hope to set up? Why?Translate the sentence “N
39、ot 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.Step6. Language points1.Do you often throw away things you dont need anymore?1) throw away扔掉，丢弃浪费 (机会、优势或好处)e.g. I never throw anything away
40、. 我从来不扔任何东西。 2) 错过(机会等)，放过；未能很好利用(机会等)e.g. Dont throw away this opportunity. 不要错过这个机会。3) 浪费(时间、金钱等)乱花(钱等)e.g. It will be time and money thrown away. 这将是浪费时间和金钱。 2. Have you 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 talents can als
41、o be put to good use, if you can work up the energy. 如果你能让自己精力充沛起来，你的创作才能也能得到很好的发挥。3. She lives in a house 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。 Some birdsbuildnestsoutoftwigs. 一些鸟用小枝筑巢 。4. The top of the house is
42、 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。 e.g. Tony had an upside-down map of Britain on his wall. 托尼的墙上倒挂了一张英国地图。 The lid, turned upside down, served as a coffee table. 那个盖子被翻过来当作咖啡桌。5. And the gate in front of her house is made of rocks and old glass bottle
43、s.be made of和be made from都表示“由制成”，但二者的用法有区别。be made of常常表示原材料未发生化学变化，从成品中仍可看出原材料；而be made from常常表示原材料经过化学变化，从成品中看不出原材料。 e.g. The desks and chairs are made of wood. 这些课桌椅是木材制成的。 This kind of wine is made from wheat. 这种酒是用小麦制成的。6. He is known for using iron.be known for 因而著名 be known as 作为而著名 be known
44、 to 对于某人来说是著名的e.g. He was known for his friendly. 他以友好而著称。He is known to the police as a thief. 对警察来说是一个小偷。Zhou Jielun is known as a rap singer. 周杰伦是作为一个说唱歌手而出名。 7. 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 c
45、reativity (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not only位于句首，其后的主谓要部分倒装，即根据主语的人称和数以及时态的变化，将不同的助动词提到主语前，需要注意的是but (also)后面的主谓不用倒装。例如：Not only did my aunt teach at school, but (also) she wrote articles for newspapers.我阿姨不仅在学校教书而且还给报纸写稿。Step 7. Practice 2c and 2dStep 8. Disc
46、ussion 2eMake a list of things that need to be done to save the environment. Which things can be done by common people every day? Which things have to be done by governments and organizations? Discuss these with your group.Step 9 Exercises:Step 10. HomeworkPeriod 5 Section B 2 (3a-Self Check)Step 1. RevisionWrite down these phrases. 停止乘小汽车 回收纸用纸巾