牛津英语八年级下Unit_8_A_green_world_教案

课 Unit 8 A green world --- Comic strip and Welcome to the unit 课时 第一课时 执教时间 复备人 教学目标 1. 知识目标： 2. 词汇：dig, serious, cause, wise, breadfruit, reduce, recycle 词组：plant more trees, reduce air pollution, by riding bicycles, save water, take shorter showers, save energy, turn off the lights, protect the environment, by recycling waste, cause serious air pollution, 句子： Will more trees be planted this year? We can reduce air pollution by riding bicycles. We can save water by taking shorter showers. We can save energy by turning off the lights when we leave a room. We can protect the environment by recycling waste. More and more families own cars and this causes serious air pollution. It’s wise for people to choose public transport or ride bicycles. We should remember to turn off the lights when we leave a room. 2. 技能目标： 1) 能准确运用有关如何保护环境的表达； 2) 能就环保的话题用英语展开讨论。 3. 情感目标：帮助学生认识保护环境的重要性，培养学生保护环境的意识。 教学重点 1) 能准确运用有关如何保护环境的表达； 2) 能就环保的话题用英语展开讨论。 教学难点 能就环保的话题用英语展开讨论。 教学媒体 多媒体 教学过程 Step1：预习指导与检测 Step2：展示目标 Step3：课堂导学与互动 任务一：Lead-in What is the boy doing? Why? What should we do when we leave a room? How can we reduce air pollution? What can we save by taking shorter showers? Our planet is in trouble! We should try our best to protect the environment. What else can we do? (Turn off computers when we are not using them. Use both sides of a piece paper. Send e-mails or e-cards instead of letters or postcards. Reduce waste. Buy products that we can use again. Use cold water instead of warm or hot water to wash our hands when possible. Don’t use chopsticks that can be used only once. Don’t cut down trees to make paper.) 任务二：A green life The class 1, Grade 8 students are talking about ways to live a green life. Look at them and match them with the correct sentences (Part A on page 107). Mr Wu is asking the students how to live a green life. Listen and answer: What should we do to live a green life? 任务三：Discussion Think of the following situations. Work in groups to write down the ways of living a green life. A: In a library B: In class C: At a dinner party D: In the park E: In the zoo Discuss: How can we live a green life? Work in groups and make a new conversation about how to live a green life. 任务四：Lead-in Do you think Hobo will plant trees to make our earth greener? What about Eddie? 任务五：Listen and answer the questions. 1. Why does Hobo want to plant more trees? 2. Does Eddie want to go with Hobo? 3. What does Eddie really want to plant? Check the answers. Watch and act out the dialogue Fill in the blanks. Eddie and Hobo are our good friends. Hobo says he is going to _______ trees because he thinks trees are _______ for us. Eddie says he will go _______ him because he likes _______ in the garden. But he doesn’t really want to plant _________ trees. Actually, Eddie really wants to plant _________ trees. Step4：总结提升 Translate the following 1. 植树 2. 减少空气污染 3. 通过骑自行车 4. 节省水 5. 更短时间的淋浴 6. 节省能量 7. 关灯 8. 保护环境 9. 通过回收垃圾 10. 引起严重的空气污染 11. 今年会植更多树吗？ 12. 我们可以通过骑自行车减少空气污染。 13. 我们可以通过更短时间的淋浴节省水。 14. 我们可以通过在离开房间时关灯节省能量。 15我们可以通过回收垃圾来保护环境。 16.越来越多的家庭拥有小汽车。这引起严重的空气污染。 17.人们选择公共交通和骑自行车是明智的。 18.我们应该记住在离开房间时要关灯。 Step5：当堂反馈见导学案 Step6：课后拓展见导学案 Step7：布置作业 · Recite the new words and phrases. · Recite comic strips and act it out. · Ss make dialogues about how to live a green life. · 4. Search more information about how to live a green life. · 5. Preview Reading. 教学反思 课题 Unit 8 A green world --- Reading 1 课时 第二课时 执教时间 复备人 教学目标 1.知识目标： 学习词汇：separate, allow, punish, fine, depend, rich, wisely, produce, difference, plastic, recycling, limit, resource 学习词组：separate into, cut down trees, depend on/upon, run out, make a difference (to sb/sth) 学习句子： It is beautiful, and we should try to keep it that way. In Switzerland, things like glass, plastic and paper are separated into different groups and then recycled. For example, we are not allowed to cut down trees. If we drop litter in a public place, we will be fined by the police. We depend on its rich resources to live, so it is important for us to protect it wisely. These new types of energy cost very little and will never run out. Moreover, they produce little pollution. Remember that everyone can do something to make a difference! 2. 技能目标： 1) 通过图片、标题和上下文猜测课文大意； 2) 了解瑞士的环保，就环保的话题用英语展开讨论。 3. 情感目标：帮助学生认识保护环境的重要性，培养学生保护环境的意识。 教学重点 1) 通过图片、标题和上下文猜测课文大意； 2) 了解瑞士的环保措施，就环保的话题用英语展开讨论。 教学难点 了解瑞士的环保措施，就环保的话题用英语展开讨论。 教学媒体 录影机，多媒体，实物等 教学过程 Step1：预习指导与检测 见导学案 Step2：展示目标 见导学案 Step3：课堂导学与互动 任务一：Pre-reading Where is Switzerland? What do you know about this country? 任务二：While-reading Kitty’s online friend Martina is a middle school student in Switzerland. She is writing in her blog on 5 June, World Environment Day. Task 1 Read the blog quickly and match the words on the left with the meanings on the right (Part B1). Task 2 Listen and match Kitty made some notes of Martina’s blog on a piece of paper, but her mother tore it up by mistake. Help her match the two halves of the sentences. Write the correct letters in the blanks. Task 3 Read each paragraph and find the main points of each paragraph (Part B3). After reading Martina’s blog, Kitty has written down the main points of the paragraph (Part B3 on page 111). Task 4 kitty learnt about Martina’s blog. Read the blog carefully, write a T if a sentence is true or an F if it is false. Task 5 Kitty is telling Sandy about Martina’s article. Complete their conversation (Part B4 on page 111). Task 6 listen to the tape and answer questions. 任务三：Post-reading Watch and practice after the tape. Practice the following phrases. separate into cut down trees depend on/upon run out make a difference (to sb/sth) Practice the following sentences. It is beautiful, and we should try to keep it that way. In Switzerland, things like glass, plastic and paper are separated into different groups and then recycled. For example, we are not allowed to cut down trees. If we drop litter in a public place, we will be fined by the police. We depend on its rich resources to live, so it is important for us to protect it wisely. These new types of energy cost very little and will never run out. Moreover, they produce little pollution. Remember that everyone can do something to make a difference! Step 4总结提升 试着复述课文。 Step5：当堂反馈见导学案 Step6：课后拓展见导学案 Step7：布置作业 1. Recite the new words in the article. 2. Read the text frequently after class. 3. Try to find out more about Switzerland. 教学反思 课题 Unit 8 A green world ---Reading 2 课时 第三课时 执教时间 复备人 教学目标 1.知识目标： 学习词汇：separate, allow, punish, fine, depend, rich, wisely, produce, difference, plastic, recycling, limit, resource 学习词组：separate into, cut down trees, depend on/upon, run out, make a difference (to sb/sth) 学习句子： It is beautiful, and we should try to keep it that way. In Switzerland, things like glass, plastic and paper are separated into different groups and then recycled. For example, we are not allowed to cut down trees. If we drop litter in a public place, we will be fined by the police. We depend on its rich resources to live, so it is important for us to protect it wisely. These new types of energy cost very little and will never run out. Moreover, they produce little pollution. Remember that everyone can do something to make a difference! 2. 技能目标： 1) 通过图片、标题和上下文猜测课文大意； 2) 了解瑞士的环保措施，就环保的话题用英语展开讨论。 3. 情感目标：帮助学生认识保护环境的重要性，培养学生保护环境的意识。 教学重点 1) 通过图片、标题和上下文猜测课文大意； 2) 了解瑞士的环保措施，就环保的话题用英语展开讨论。 教学难点 了解瑞士的环保措施，就环保的话题用英语展开讨论。 教学媒体 录影机，多媒体，实物等 教学过程 Step1：预习指导与检测 见导学案 Step2：展示目标 见导学案 Step3：课堂导学与互动 任务一：Read paragraphs 1 and answer the following questions. 1. What is Switzerland like? 2. What do people try to do? Read paragraph 2 and answer the following questions. 1. What can be recycled in Switzerland ? 2. What does Martina’s family do with their old clothes? Read paragraph 3 and answer the following questions. 1. Does Switzerland have laws to protect the environment? 2. What will happen if you drop litter in a public place in Switzerland? Read paragraph 4 ,5 and answer the following questions. 1. What are the new ways to get energy? 2. What are the advantages of these new types of energy? 任务二：Watch and finish the table. Green Switzerland Do       Don’t do     Practice reading the blog and then fill in the blanks. Switzerland is a beautiful country with high (1)___________ and clean blue lakes. Things like glass, plastic, paper (2)_____________ different groups and then recycled. An organization (3)_________ old clothes from all over the country and recycles them. The Swiss government has many laws (4)_____________ the environment. If you cut down trees, you (5)_______________. Nature is the greatest treasure. We (6)_______________ its rich resources to live. We must protect it (7)______________. We can use new types of energy because they cost very little and will never (8)_____________. Moreover, they (9)_____________ little pollution. Let’s do something to (10)___________________! 任务三：Work in groups and discuss how to make a greener world. Report to the whole class on how to make a greener world. We should choose public transport. Our government can make more laws to protect the environment. If someone does something wrong, they should be fined or published. … It is important/necessary/wise/… for us to … We should plant more trees if possible. We should donate them to … We should turn off computers/lights/TVs/… when we are not using them. Read and choose the best answers. Practice reading the text in groups. 阅读课文展示。 活动一：个人朗读课文。 活动二：分小组齐读课文。 任务四：Watch and try to retell the report. 任务五：小组合作解决课文中的重、难点（教师点拨）。 活动一：自由朗读课文，划出重点短语和句子。 活动二：小组合作解决难点。 活动三：各小组分类展示。 Step 4总结提升 1. 朗读并试着背诵课文。 2. 复习巩固本课重点短语和句子。 Step5：当堂反馈见导学案 Step6：课后拓展见导学案 Step7：布置作业 1. Recite the new words, phrases and useful expressions. 2. Read the text frequently after class. 3. Tell your friend something about how to make a greener world. 4. Write an article about how to make a greener world. 5. Preview Grammar. 教学反思 课题 Unit 8 A green world -- Grammar 课时 第四课时 执教时间 复备人 教学目标 1.知识目标： 学习词汇：pollute, living, display, harm 学习词组：clean up, in the town square, the past and present of…, one of the biggest problems, throw into rivers, be filled with, make people ill, as well as…, have a chance, some good news 学习句子： You will be punished if you cut down a tree. These bottles will be recycled to make new things. 2. 技能目标： 1) 学会正确运用被动语态的一般将来时。 2）学会用被动语态的一般将来时描述人或事。 3. 情感目标：培养学生良好的品质。 教学重点 1) 学会正确运用被动语态的一般将来时。 2）学会用被动语态的一般将来时描述人或事。 教学难点 学会正确运用被动语态的一般将来时。 教学媒体 录音机，多媒体，实物等 教学过程 Step1：预习指导与检测 见导学案 Step2：展示目标 见导学案 Step3：课堂导学与互动 任务一：Presentation Look at the following sentences. 1. Will more trees be planted this year? 2. You will be punished if you cut down a tree. 3. These bottles will be recycled to make new things. 4. If we drop litter in a public place, we will be fined by the police. 任务二：Work out the rule to test your sense of observation to test your ability of short-term memory to test your ability to highlight the language points Fill in the blanks. 1. ____ more trees __________ this year? 2. You ______________ if you cut down a tree. 3. These bottles ______________ to make new things. 4. If we drop litter in a public place, we ____________ by the police. 任务三：Work in pairs. Ask and answer. when / the next Olympic Games / hold? When will the next Olympic Games be held? 1. who / choose / represent China / the next Olympics? the best sports stars / choose / represent China Who will be chosen to represent China in the next Olympics? The best sports stars will be chosen to represent China. 2. what / Liu Xiang / ask / to do / in the future? he / ask / appear films and record music What will Liu Xiang be asked to do in the future? He’ll be asked to appear in films and record music. 任务四：对比三种时态的被动结构： 时态 主动语态 被动语态 一般 现在时  do/does  is/am/are+done 一般 过去时  did  was/were+done 一般 将来时  Will do be going to do  will be done be going to be done 任务五：被动语态的疑问和否定形式 时态 肯定形式 否定形式 疑问形式 一般 现在时  S+ am/is/are +done  S+am/is/are +not+done  Am/Is/Are +S+done? 任务六：Work out the rule 时态 肯定形式 否定形式 疑问形式 一般 过去时  S+ was/were +done S+ was/were +not+done    Was /Were +S+done? 一般将来时  S+will be +done S+am/is/are going to be done  S+will not be+done S+am/is/are not going to be done  Will+ S +done? Am /Is/Are +S+going to be done? 任务七：Complete the passage with the correct form of the words. Step4总结提升 Step5：当堂反馈见导学案 Step6：课后拓展见导学案 Step7：布置作业 1. Review the Grammar. 2. Finish the exercises on P113. 3. Preview Integrated skills on Pages 115 and 116. 教学反思 课题 Unit 8 A green world --- Integrated skills 课时 第五课时 执教时间 复备人 教学目标 1.知识目标： 学习词汇：survey, empty, harmful, dust, soil 学习词组： a survey on students’ daily habits, the number of the students, turn off the tap, brush teeth, use both sides of the paper, recycle empty bottles, do a survey, many more things, be come a serious problem, try our best, reduce dust, keep the air clean, be harmful to our health, keep soil in place, 学习句子： Daniel and I did a survey this Wednesday. Students were asked about their daily habits. Here are the results of the survey. The survey shows that students are doing a lot to help protect the environment, but there are still many more things they can do. Pollution has become a serious problem all around the world. We should try our best to protect the environment. Air pollution is harmful to our health. 2. 技能目标： 1) 能听懂有关环保问题的对话，并从听力材料中获取需要的信息。 2) 能用从听力中获取的信息将语篇补充完整。 3. 情感目标： 就环保话题进行交流，学会在实际生活中保护环境。 教学重点 1)能听懂有关环保问题的对话，并从听力材料中获取需要的信息。 2)能用从听力中获取的信息将语篇补充完整。 教学难点 能用从听力中获取的信息将语篇补充完整。 教学媒体 录影机，多媒体，实物等 教学过程 Step1：预习指导与检测 见导学案 Step2：展示目标 见导学案 Step3：课堂导学与互动 任务一：Lead-in How can we live a green life? What can we do to protect the environment in our daily lives? (Protecting the environment is very important. We can help protect the environment by doing some simple things, such as turning off the tap when brushing our teeth, taking shorter showers, using both sides of the paper and recycling empty bottles .) 任务二：Presentation If some people don’t know how to protect the environment in our daily lives, what should we do? (We should help them form daily habits to protect the environment in our daily lives. ) How much do you know about students’ daily habits? 任务三：Listen and write The Class 1, Grade 8 students want to do a survey to get some ideas for their presentation on how to go green. Listen to the conversation between Daniel and Sandy and write the correct information in the table (Part A1 on page 115). Daniel and Sandy are talking about the results of the survey. Listen to the conversation and complete the table in Part A2 on page 115. 任务四：Read and write Sandy is writing a note to Mr Wu about the survey she and Daniel have done. Help her complete the note. Fill in the blanks in Part A3 on page 116. with the information in Part A1, A2 on page 115. 任务五：Speak up: We have learned a lot about what you can do to protect the environment. Can anybody tell me some other ways to protect the environment? （We can plant more trees, pour less waste water into the rivers and so on.） Sandy and Kitty are also talking about how to protect the environment. Listen to their conversation and tell what they can do? （They can plant more trees.） Listen again and find out more advantages about planting trees. （1. Trees make our town look nicer. 2. Trees reduce dust and help keep the air clean. 3. Trees help keep soil in place during storms. 4. Trees provide home for animals. ） Read the conversation after the tape sentence by sentence. Work in groups and make another dialogue to talk about actions you can take. Sample conversation S1: Water is very important for all living things. S2: Yes. We should use our water carefully and not waste it. S1: Right. We can help save water by doing many simple things like turning off the tap while we brush our teeth. S2: Taking shorter showers saves even more water. S1: Saving water is good for the environment. I hope all of us do our best to save water. S2: I hope so too. Act your dialogue out! Step4：总结提升 Step5：当堂反馈见导学案 Step6：课后拓展见导学案 Step7：布置作业 1. Recite the new words and phrases. 2. Recite the dialogues in speak up. 3. Search for more about actions you can take. 4. Take notes and make up a new dialogue about actions you can take. 教学反思 课题 Unit 8 A green world ---Study skills 课时 第六课时 执教时间 复备人 教学目标 1.知识目标： 学习词汇：coal, oil, form, carelessly, gas, reuse 学习词组：depend on, natural resources, not only…, but also…, as a result, use them wisely, throw away carelessly, run out, if possible 2. 技能目标： 1）了解作文中常见的错误； 2）学习改正作文中的错误； 3．情感目标：养成认真检查作文的好习惯。 教学重点 1）了解作文中常见的错误； 2）学习改正作文中的错误； 教学难点 学习改正作文中的错误； 教学媒体 录影机，多媒体，实物等 教学过程 Step1：预习指导与检测 见导学案 Step2：展示目标 见导学案 Step3：课堂导学与互动 任务一：Free talk When you have finished a piece of writing, what should we do to have our article given more points? （We should correct a lot of our own mistakes by checking our work. We should always spend some time reading it through. ） 任务二：Presentation What kinds of mistakes do we often make? The types of mistakes: W= word usage mistake单词使用错误 P=punctuation mistake标点符号使用错误 S= spelling mistake单词拼写错误 M= missing word缺词错误 G= grammatical mistake语法使用错误 任务三：Different types of mistakes Millie has written an article. Help her check her work. Underlines the mistakes, make corrections and describe the types of mistakes she has made. Read and answer: 1. How many mistakes are there in her report? 2. How to correct the mistakes? Check the answers. 任务四：Practice 1、 找出下列句子中的错误，说出错误的类型并改正。 1) How useful it is to write to Sigmund? 2) Sigmund oftens me some suggestions. 3) His advice is great importance to me. 4) I know her mother is busy worked. 5) Talk to your friend when feel unhappy. 6) Your mother is worrying you. 7) Although she is a top student, but she has some problems. 8) Sports make her to feel happy. 9)Swim is still difficult to me. 2、 找出下列文章中的错误，说出错误的类型并改正。 Step4：总结提升 Step5：当堂反馈见导学案 Step6：课后拓展见导学案 Step7：布置作业 1. Remember the new words in this lesson. 2. Finish all the workbook exercises. 3. Write a passage to give your advice about how to save water, and then check your work. 4. Preview Task. 教学反思 课题 Unit 8 A green world --- Task 课时 第七课时 执教时间 复备人 教学目标 1.知识目标： 学习词汇：simple, step, power 学习词组： change for the worse, brush our teeth, in use, some other good habits, help reduce pollution, use plastic bags, do more exercise, watch less TV, make a big difference to the Earth 学习句子： Here are some simple steps to take. We can save water by taking shorter showers and turning off the taps when we brush our teeth. We should also reuse water if possible. In order to save power, we should turn off the lights when we leave a room. We should also turn off the power when our TV or computer is not in use. Instead, we should take our own bags when shopping. Recycling is also a good way to help reduce pollution. We should separate waste into different groups so that it can be recycled. Moreover, it is important for us to develop a green lifestyle. Follow these small steps, and you can make a big difference to the Earth! 2. 技能目标： 1）学会在写作前用笔记整理思路。 2）熟练运用本单元所学词汇，词组和句型组织语言。 3） 完成一篇与环保话题有关的演讲稿。 3. 情感目标：通过写作，培养我们平时良好的环保习惯。 教学重点 1）学会在写作前用笔记整理思路。 2）熟练运用本单元所学词汇，词组和句型组织语言。 3） 完成一篇与环保话题有关的演讲稿。 教学难点 完成一篇与环保话题有关的演讲稿。 教学媒体 录影机，多媒体，实物等 教学过程 Step1：预习指导与检测 见导学案 Step2：展示目标 见导学案 Step3：课堂导学与互动 任务一：Free talk What does she get? Why? (Perhaps she wins a prize because she joins a competition.) 任务二：presentation Suppose our school is going to have a competition about how to protect the environment. What will you do? (I will have to prepare an article about how to protect the environment.) Let’s enjoy an article about how to protect the environment. Protect the Environment, Protect Ourselves Good afternoon, my honorable（值得尊敬的）judges, ladies and gentlemen and fellow contestants（竞争者）: I feel so happy to have the chance to make a speech. The title of my speech is Protect the Environment, Protect Ourselves. I hope you will like it. Everybody knows waste paper and used coke cans are dropped everywhere. You might have seen plastic bags flying in the sky and getting caught in the trees when the wind blows or maybe you have seen old cans floating in the rivers and polluting the water. Our environment is the place in which we live, but it is being polluted by us. There is a story about house and trees. It is said that a man’s house was surrounded by a lot of trees. Though the wind was strong, that man could have a good rest under the trees. How comfortable the life was! One day, that man wanted to enlarge his house, so he cut down all the trees. Then the autumn came without the protection. The strong wind blew the roof of the house into the sky. The whole house was gone with the wind. What a pity! But that’s the price people have to pay for destroying in the ecology balance. People shouldn’t be short-sighted. Protecting the environment is everyone’s task. As you know, there are four kinds of pollution. They are air pollution, water pollution, waste pollution and noise pollution. But what can we do to solve the pollution? I think, firstly, we can make cars that don’t pollute the environment. We can ask companies to use modern clean technology. In some big cities, we can limit the number of cars. Secondly, we can try to use less water and make sure that we do not pollute the water. We can tell factories that they are not allowed to pour waste water into the lakes and rivers. Thirdly, we should not throw rubbish in parks and cities. We can pick up rubbish if we see it. We can put more rubbish bins in our parks and cities. Fourthly, we can live far from the noise and make the laws to limit the noise. The air, water and the whole atmosphere directly influenced our lives, such as the air, people may cough and it will lead to cancer. So we must try our best to keep the world clean and tidy. To reach it, I want to put forward three points to everybody---Point 1: don’t spit and litter; Point 2: don’t draw on the wall; Point 3: clean the streets every day. In order to make the environment clean, let’s join our hands together to make the world better. Thank you! Ask and answer about it. How many kinds of pollution are there? What are they? 任务三：Lead in Do you think this article is beautiful? Do you want to take part in an English contest like her? 任务四：Presentation The Class 1, Grade 8 students are going to give a presentation on how to go green. Let’s read Millie’s notes (Part A on page 118). 1. What can we do to save water? 2. What can we do to save power? 3. What can we do to reduce pollution? 4. What else can we do to live a green life? Millie is writing the script for the presentation on how to go green. Let’s help Millie complete her script (Part B on page 119). 任务五：Writing We’ve read Millie’s script. Now it’s your turn to give a presentation on how to go green . Discuss in groups and write down your notes down first. Discuss and fill in the table   Main idea Useful expressions Paragraph 1 Introduction   Paragraph 2 Some steps to take   Paragraph 3 Some other good habits to reduce pollution   Paragraph 4 A good way to reduce pollution   Paragraph 5 Conclusion   Work in groups and create your own presentation. You can use the following useful expressions to help you. It is time for us to …. We can save water by…. We should use/take…. … is a good way to … It is important for us to … It is good to …. Moreover,…. · 环境问题今天环境变得越来越糟糕,环境问题影响着人们的工作,学习,生活等,而我们的工作,生活,生产等又使环境污染越来越严重……,如何保护我们的环境?根据下表提示,请以“ How to protect our environment? ”为题写一篇短文。不少于100个词，可适当发挥。 演讲话题 How to protect our environment? 存在问题 1.当今世界最重要的话题就是污染问题。） 2.水污染越来越严重：砍伐森林严重。日常生活中他们浪费很多水。更糟糕的是他们排放污水到河流里。他们还乱扔垃圾到河流里去。很多河流湖泊已经受到严重污染。 3.大气污染严重; 4.白色垃圾污染。 5. 噪音污染等 如何改善/保护环境? 至少：3至4个方面。 结束语 我们知道，地球对人类来说是非常的重要。没有地球我们就不能生存。只有有它，我们才过得幸福开心。正如人们所说“如果我们不节约水，那么最后一滴水也许会是我们人类的眼泪”. 任务六：学生作文展示。 Sample writing How to protect/save our environment/world? As we all know, the environment around us is getting worse and worse /more and more seriously today. The most important question in the world today is pollution .Water is polluted, we have no clean water to drink. Many trees are cutting down. They waste a lot of water in their daily life. Even worse, they pour dirty water into rivers. They throw rubbish into rivers , too. Many rivers and lakes are seriously polluted. Some factories are pouring dirty air into the sky. Not only does it affect our lives and health, it also has a great affection in the future. People’s health has been greatly affected by air, noise and water pollution. Many people died of diseases. In order to live a better life, something must be done to stop the pollution. It’s our duty to protect our environment. We shouldn’t throw away rubbish everywhere. Trees are very helpful and important for us. We should plant more and more trees in order to live better and more healthy in the future. If everyone makes contribution to protecting the environment, the world will become much more beautiful. In a word, if everyone pays more attention to our environment, there will be less pollution and our life will be better. “There is only one earth”, I hope everyone will protect our environment well. As we know, Earth is very important to man. We can’t live without it. Only in this way can we live happily. If we don’t save water, the last drop of water will be a tear-drop of us. Step4：总结提升 Let’s check your article. See if you are the best! Step6：课后拓展见导学案 Step7：布置作业 1. Remember the expressions in this lesson. 2. Finish writing about your own presentation. 3. Try to learn more about how to protect the environment. 教学反思 PAGE 第 1 页 2015-6-25