Unit13Wearetryingtosavetheearth!教案

1 Unit 13 We re trying to save the earth 一 教学目标 一 教学目标 1 语言知识目标语言知识目标 基本词汇基本词汇 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 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 教学步骤三 教学步骤 Section A 1 1a 2d I Presentation Show the picture of the 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 II Learning Here are some words 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 phones noise pollution air pollution water pollution Keys noise pollution loud music planes mobile phones building houses air pollution factories smoking cars building houses water pollution ships rubbish littering factories III Listening 1 1b Listen and complete the sentences What was the problem The river was Even the bottom 底部 of the river was full of There were no more for fishermen 渔民 to catch What caused the problem People are throwing into the river Factories are putting into the river How should the problem be solved We should write to the and ask them to the factories Everyone should help to the river Keys really dirty rubbish fish litter waste government 3 close down clean up 2 Listen again and check the sentences you hear 1 We could go fishing in the river 2 The river was really dirty 3 The river has always been the nicest river in this town 4 We should ask the teachers for help Keys 2 3 IV Practice 1 Role play the conversation in 1c Mark The river was dirty Even the bottom of the river was full of rubbish Tony But it used to be so clean Mark Yes but people are throwing litter into the river Tony Everyone in this town should play a part in cleaning it up 2 Make conversations using the pollution in 1a A The river has always been the nicest river in this town B Yes it used to be so clean A But I was there last weekend and the river was really dirty B What caused the problem A People are throwing litter into the river B What should we do A Factories are also putting waste into the river B Yes everyone in this town should play a part A We should write to the government and ask them to close down the factories B What else can we do A Everyone should help to clean up the river V Language points 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 e g Every student should try to study hard in order to study in a university 4 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 not related to him 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 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 litter after a picnic 野餐后将废弃物收拾好 VI Listening 1 2a Listen to the interview Circle the kinds of pollution that Jason and Susan talk about A land pollution B air pollution C noise pollution D water pollution Keys B A 2 2b Listen again and complete the sentences 1 The air is badly polluted because there are on the road these days 2 Factories that burn coal also the air with a lot of black smoke 3 There is also too much rubbish and waste People things 5 every day 4 People are also littering in like parks This is turning beautiful places into ugly 丑陋 ones Keys more cars pollute are throwing away public places 3 Listen and answer the questions 1 Who is the interviewer talking to 2 What are they talking 3 What other problems do they see Keys Susan and Jason The environmental problems There s too much rubbish and waste in the streets VII Practice 2c Use the information in 2a and 2b to role play conversations between Jason and Susan Jason The air has become really polluted around here I m getting very worried Susan Yes I used to be able to see stars in the sky Jason The problem is that VIII Discussion Ask students what we should do to save the earth Help students answer turn off the lights when you leave a room stop riding in cars stop using paper towels or napkins recycle books and paper IX Reading 1 Read 2d and complete the chart ProblemsSolving problems air pollution waste pollution wooden 木头的 chopsticks or plastic forks rubbish 2 Role play the conversation 6 Interviewer Jason and Susan what are your ideas for solving these problems Jason Well to cut down air pollution we should take the bus or subway instead of driving Susan Yeah or ride a bike There are other advantages 优点 of bike riding It s good for health and it doesn t cost 花费 anything Interviewer Great ideas What about waste pollution Susan Mmm I think simple things like bringing a bag to go shopping can help I started doing that a year ago Jason Me too Also I never take wooden chopsticks or plastic 塑料 forks when I buy takeaway 外卖食品 food I use the ones at home Susan And remember to throw rubbish in the bins and keep public places clean and beautiful for everyone Interviewer So together our actions can make a difference and lead to a better future X Summary and language points 1 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 It s good for health and it doesn 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 Take buses instead of driving cars Recycle books and paper 2 There are some animals are endangered We should do something to protect the animals and the environment III Discussion 1 Have you ever seen a shark 2 What do you know about sharks IV Reading 1 Sharks are endangered read the passage and judge the sentences Shark s fin 鱼鳍 soup is famous and expensive all around the world 9 We have to kill a whole shark to get a bowl of shark s fin soup People cut off sharks fins and throw the sharks back into the ocean Sharks are in the bottom of the food chain in the ocean s ecosystem WildAid and the WWF are environmental protection groups in China Shark s fin s are good for health 2 Complete the fact sheet in 3a Where shark fin soup is popular Number of sharks caught and traded every year How much the numbers of some kinds of sharks have fallen in the last 20 to 30 years Two environmental groups which are against finning V Practice 3b 1 Read the passage and dill in the blanks with the words in the box 1 Many people do not realize they are killing a whole shark they enjoy a bowl of shark fin soup 2 Sharks are at the top of the food chain if their numbers drop the ocean s ecosystem will be in danger 3 Many think 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 disappear one day we do not do something to stop the sale 10 of shark fins 2 Retell the passage according to the words below shark s fin soup in southern China each time cut off no longer not only but also at the top drop be endangered the strongest around 70 million fallen by over 90 percent WildAid and the WWF develop laws scientific studies VI Language points 1 A shark can no longer 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 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 11 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 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 e g Smoking is harmful to the health 吸烟有损健康 Playing computer games much is harmful 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 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 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 heard 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 e g In that country 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 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 12 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 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 VII Homework Write 5 measures to protect the environment Section A 3 Grammar Focus 4c I Revision 1 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 these 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 II Grammar Focus Pay attention to the sentences 1 We re trying to save the earth 2 The river used to be so clean 3 The air is badly polluted 13 4 No scientific 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 e g Look The boy is crying 2 used to do 与 be used to doing used 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 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 14 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 III Practice 1 Work on 4a Fill in the blanks with the correct forms of the verbs in brackets Joe you ever take part in an environmental project Eric Yes I have I help with a Clean Up Day last year It was consider the biggest clean up project this city ever have Joe How many people take part Eric I think more than 1 000 people come to help out Joe That s fantastic I guess everyone in this city is try to improve the environment Eric Yes we can t afford to wait any longer to take action Learn some new words and expressions 2 Work on 4b Fill in the blanks with the appropriate modal verbs from the box The words are can would could have to should must may might People think that big things be done to save the earth Many forget that saving the earth begins with small things For example you save electricity by turning off the lights when you leave a room You also use reusable bags instead of plastic bags I think it s a great idea that you now pay for plastic bags in some stores And instead of driving to school or work you ride your bike or walk If it s far you take the bus All these small things add up and become big things that improve the environment Let s take action now Learn some new words and expressions 3 Work on 4c Make a list of things that people can do to help the environment and 15 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 s difficult for parents with young children to use public transportation IV Language points 1 We can t afford to wait any longer to take action afford v 承担得起 提供 给予 afford to do sth 常与 can be ble to 连用 买得起 有足够的 e g We can t afford to pay such a price 我们付不起这个价钱 Dancing affords us pleasure 跳舞给我们带来快乐 2 save electricity by turning off the lights when you leave a room turning off 关掉 e g Please turn the television off before you go to bed 睡觉前请关掉电视 拓展 turn 相关短语 turn around 转身 turn up 调高 音量 turn down 调低 拒绝 turn into 变成 进入 turn on 打开 发动 turn off 关掉 关闭 16 turn out to be 结果是 turn over 移交 V Homework Finish the exercises in the workbook Section B 1 1a 2e I Revision Role 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 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 II Leading in 1 Tell students 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 help reduce pollution by putting that soda can in a different bin Don t use paper napkins 2 What can we do 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 17 3 Compare your answers in 1a with your partner III Listening 1c especially old jeans bags 19 Wang Tao iron n 铁 and other materials from old cars beautiful art pieces 3 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 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 Is Jessica Wong good at recycling What does she do Where does she sell her bags What will she write in her book Keys Yes she is She uses 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 What does Wang Tao hope to set up Why Translate the 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 20 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 VI Language points 1 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 e g I never throw anything away 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 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 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 also 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 birds build nests out of twigs 一些鸟用小枝筑巢 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 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 bottles 21 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 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 oth