新译林牛津小学英语六年级上册江苏省省优质公开课赛课 Unit 7 Protect the Earth
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Unit 7 Protect the earth Teaching contents教学内容:Story timeTeaching aims and learning objectives教学目标:1.Talk about nature, ecology and the environment.2. Make the Ss know the Earth Summit and the importance of the environment.3. Further develop students’ reading ability as well as listening and speaking abilities.4. Make the Ss learn some useful words and expressions.5. Arouse the Ss to take better care of the earth.…Focus of the lesson and predicted area of difficulty教学重难点:Further develop studen ts’ reading ability as well as listening and speaking abilities. Preparation教学准备:PPT 书本教案Teaching procedures教学过程:Step 1. Pre-reading,1. Begin the class by showing the video(地球环境现状).2. Ask the Ss some questions.What are the problems facing the earth?(energy animal air wood…)简单教学视频中出现的需要保护的环境Step 2 .While-reading,1.Listen to the conversation and circle the picturePPT显示课文中出现的内容water energy trees plastic带读文中出现的内容2. listen to the conversation paragraph by paragraph and choose the words to fill the blanks .Energy water plastic treeWe drink _____and use_____to clean things everydayMost of our_______comes from coal and oil.________help keep the air cleanWe use _____to make bags and bottles.4.跟读完成(True or false)(1). Tere is not much water in many places( )(2).Cars don’t use much energy ( )(3).We should not cut down trees ( )(4).Trees help the air clean ( )(5).We should not use plastic bags because they are not usefull ( )Step 3. After- reading,致远外小举行一个保护地球的活动…Step4:Blackboard design板书设计:We shouldWe shouldn’t。
小学英语译林版六年级上册Unit7 Protect the Earth 《Story time》优质课教案省级比赛获奖教案公开课教师面试试讲教案【名师授课教案】1教学目标1.认知目标:1)能初步掌握会话中出现的四会单词use、much、oil、drive、other、glass、collect.2)能正确地运用对话中出现的日常交际用语和句型We use ...to.../We should .../We s hould not...2.能力目标:能正确理解、掌握story time部分会话,并能朗读、初步表演对话。
3.情感目标:通过本课学习,引导学生提高爱生活,爱地球,宣传保护地球和参与保护地球的意识。
2学情分析这个单元围绕话题是“保护地球”,地球是人类的家园,她给人类提供了生存的空间和资源,使人类在这里生息繁衍。
现在全球面临资源短缺、环境破坏、生态破坏三大危机,作为地球的一份子,我们有责任保护地球,以此引导学生热爱地球保护地球,在这个话题中主要学习句型use...to...的用法;同时还再现了情态动词should的用法,通过设计不通过的场景呈现,激发学生保护地球的意识。
3重点难点能正确理解、掌握story time部分会话。
4教学过程4.1第一学时教学活动1【导入】Step 1 Warming upGreetings.T:Boys and girls,let’s start our class.Good morning,everybody.Ss: Good morning/afrenoon,English teacher!T:I don’t think it is a good way to say to a teacher.OK ,classes,my family nam e is wang,so you can call me “Good morning/afternoon ,...Wang.”Ss:Good morning/afternoon,Mr Wang/Miss Wang. (Maybe some students are wrong.)。
Unit 7 Protect the Earth(Period 1)Teaching contents教学内容:JiangSu Yi Lin 6A Unit7 Protect the earth Story timeTeaching aims and learning objectives教学目标:a. Aims of knowledge1. At the end of the class, the students will be able to read the new words of “protect the earth” fluently.2. At the end of the class, the students will be able to read the whole “story time” fluently, especially for the We should, We should not… We use..b. Aims of abilities.1. At the end of the class, the students will be able t o understand the sentences” We should and We should not” and can use them to express their opinions about the earth.2. At the end of the class, the students will be able to retell one of the stories.c. Aims of emotions.1.At the end of the class, the stu dents will be able to understand that “ We should protect the earth” because earth is our mother.2.At the end of the class, the students awareness of “protect the earth” should be aroused and do it in our daily life.Focus of the lesson and predicted area of difficulty教学重难点:1. At th end of the class, the students will be able to understand the sentences” We should and We should not” and can use them to express their opinions about the earth.2. At the end of the class, the students will be able to retell one of the stories.Preparation教学准备:PPT, books, teaching plans.Teaching procedures教学过程:Step 1. Warm upT :Good morning, class.T : What’s this?T: Do you like riding bikes?T: I like riding bikes too.Because it’s very healthy and “Green”.In fact,Many p eople also like riding bikes.Whyshould we ride bikes? Because of the PM2.5.Step 2 .PresentationT: The PM2.5 is so heavy, now let’s watch a video, please watch it carefully and tell me what things can you see in this video?(play the video)T: The earth i s in danger. Animals are in danger/ Water is in danger….T: So today we’re going to learn”Protect the Earth”.How should we protect the Earth?. First, Let’s listen to the story and circle the problems.What problems are mentioned in the story?(watch the cartoon) T: Good, boys and girls.Now let’s read the passage quickly and find out the titles.T: Did you get it? Let’s check.1.Save waterT: Now we know water is useful, boys and girls, but why should we protect it and how?Please read and learn.用直线画出原因(Why do we save water?)虚线画出方法(How do we save water?)S1: Water is useful. In many places, there is not much water.S2: We should reuse and save it.T: Wonderful, boys and girls, now let’s listen to the tape and read after it.T: Now let’s read and judge, plea se read it by yourselves.1): Water is useful,so we should not waste it. ( )2): We use water to clean the things every day. ( )3): There is much water in many places. ( )4): We should not reuse the water. ( )2.Save energyT: We know water is useful, what about energy?T: Now let’s find out why should we save energy and how to save it.用直线画出原因(Why do we save energy?)虚线画出方法(How do we save energy?)T: Yes, so I think we can ride bikes, now let’s listen to the ta pe and read after it.T:Read and choose3. Save treesT: Now we know water and energy are important, what else?T: Yes, now please read by yourselves and then you can talk with your deskmate.T: Where does wood come from ?T: Why should we not cut too many trees?4. Don’t use too much plasticT: Now boys and girls, wood comes from trees, does the plastic come from the trees? T: So what do you know about plastic? You can have a group discussion.T: Good, now let’s listen and answer, what can we use plastic to make?Should we use too much plastics?T: So what can we use? Please have a group discussion.T: Yes, we should not use too many plastic, paper is better, now let’s read after the tape. T: Now please get into a group and use the given words to say sth. about plastic.. T: Ok, it’s time for reading Listen and repeatStep 3 . Consolidation.T;Now,let’s do some exercises.1)Try to judge2)Think and write3)Let's act.4)Discuss in groups.Homework1)Listen, read and retell the passage(听读课文,试着复述)2) Finish the exercises book.3)Search the song Heal the world and learn to sing.(学唱歌曲)Enjoy the songBlackboard Design。
Unit 7 Protect the earthTeaching contents教学内容:Jiang Su Yi Lin 6A Unit7 Protect the earth Story timeTeaching aims and learning objectives教学目标:a. Aims of knowledge1. At the end of the class, the students will be able to read the new words of “ protect the earth” fluently.2. At the end of the class, the students will be able to read the whole “story time” fluently, especially for the We should, We should not… We use..b. Aims of abilities.1. At th end of the class, the students will be able to understand the sentences” We should and We should not” and can use them to express their opinions about the earth.2. At the end of the class, the students will be able to retell one of the stories.c. Aims of emotions.1.At the end of the class, the students will be able to understand that “ We should protect the earth” because earth is our mother.2.At the end of the class, the students awareness of “protect the earth” should be aroused and do it in our daily life.Focus of the lesson and predicted area of difficulty教学重难点:1. At th end of the class, the students will be able to understand the sentences” We should and We should not” and can use them to express their opinions about the earth.2. At the end of the class, the students will be able to retell one of the stories.Preparation教学准备:PPT, books, teaching plans.Teaching procedures教学过程:Step 1. Warm upT :Good morning, boys and girls.S: Good morning, Miss/Mr..T : I have lots of hobbies, can you guess what are my hobbies? S: Do you like singing?T: Yes, I do.S: Do you like swimming?T: Yes, I like swimming very much.S: Do you like playing games?T: Yes, I do.T: But I like one thing best, guess.S: Do you like…?T: Yes, you’re so clever, I like riding bikes best, but why/ S: Because I think it’s very healthy.T: Yes, because it’s very “green”(PPT presents the picture of Pm.2.5)T: why should we ride bikes?S: Because of the PM2.5Step 2 .PresentationT: Yes, the PM2.5 is so heavy, now let’s watch a video called”Our home”, please watch it carefully and tell me what things can you see in this video?(play the video)S: I can see some animals, they’re in danger.S2: I can some air pollutionS3: I can some water, they’re dirty.S4: I can see the trees, they’ve been cut down.S5: The earth is in danger. Animals are in danger/ Water is in danger….T: Yes, and also this(PPT presents the plastic bags and plastic bottles. )T: So today we’re going to learn” Protect the earth”.T: First, Let’s listen to the story and circle the problems. What problems are mentioned in the story?S: The problem is water.S2: Trees are the problems.S3: We should save energy.S4: And plastic.T: You did a good job, boys and girls.Now let’s listen to the tape again and tell the names of each story.T: Did you get it? Let’s check.S1: The first is save waterS2: The second is save energy.S3: Next is save trees.S4: Don’t use too much plastic.T: Well done, boys and girls, now let’s try to fill in the blanks.Energy comes from_____and____Teach oil and coal(PPT presents oil and coal)______ comes from the treesTeach wood.T: Now let’s read and judge, please read it by yourselves.S1: Water is useful,so we should not waste it. ( T ) S2: We use water to clean the things every day. ( F )S3: There is much water in many places. ( F ) S4: We should not reuse the water. ( F )T: Now we know water is useful, boys and girls, but why should we protect it and how?Please read and learn.用直线画出原因(Why do we save water?)虚线画出方法(How do we save water?)S1: Water is useful. In many places, there is not much water.S2: We should reuse and save it.T: Wonderful, boys and girls, now let’s listen to the tape and read after it.2.Save energyT: Now we know water is useful, what about energy? Please read and choose.S1:.Most of the energy comes from___B___.A. water and soil.B. coal and oil.S2. We should ____________ and we should not_______________.save energy; drive so muchdrive so much; save energyT: Now let’s find out why should we save energy and how to save it.用直线画出原因(Why do we save energy?)虚线画出方法(How do we save energy?)S: Because there is not much coal and oil on earth.S2: We should not drive so much because cars use a lot of energy.T: Yes, so I think we can ride bikes, now let’s listen to the tape and read after it.3. Save treesT: Now we know water and energy are important, what else?S: They’re trees.T: Yes, now please read by yourselves and then you can check with your deskmate.S1: Where does wood come from ?S2: Wood comes from trees. We use wood to make tables, chairs and many other things.S3: We should not cut down trees.S4: Why should we not cut too many trees?S5: Because trees help keep the air clean.T: Perfect, now let’s try to fill in the blanks, boys and girls. ________comes from trees. We use ________ to make tables, chairs and many other things. We _____________cut down ______________trees because trees help ____________________.4. Don’t use too much plasticT: Now boys and girls, wood comes from trees, do the plastic come from the trees?S: No.T: So what do you know about plastic? You can have a group discussion.S: I know plastic bagsS2: I know plastic bottles.S3…T: Good, now let’s listen and answer, what can we use plastic to make?Should we use too much plastics?S1:We use plastic to make bags and bottles.S2: But use too much plastic is bad for our health. We should not use too many plastic bottles or bags.T: So what can we use? Please have a group discussion.S: We should use paper bagsS2: We should use glass bottles.S3; We should use…….T: Yes, we should not use too many plastic, paper is better, now let’s read after the tape.T: Now please get into a group and use the given words to say sth.about plastic..T: Ok, it’s time for reading, you can read by yourselves or get into a group.Step 3 . Consolidation.T: “Protect the earth” speech time is coming, here are the tips, boys and girls,小组合作,每组选择文中的一个小主题.(可以借助板书)Why should we …?We should/shouldn’t..切合主题,提出保护口号.T: We should protect the earth because she nourishes us. Class is over, boys and girls, see you!S: See you!Homework1.Listen to the tape and read after it for at least five times.2.Try to retell the story.3.Finish the exercises book.Blackboard DesignWe should/ We should not use…We should reuse….。
Unit 7 Protect the earthTeaching contents教学内容:Jiang Su Yi Lin 6A Unit7 Protect the earth Story timeTeaching aims and learning objectives教学目标:a. Aims of knowledge1. At the end of the class, the students will be able to read the new words of “ protect the earth” fluently.2. At the end of the class, the students will be able to read the whole “story time”fluently, especially for the We should, We should not… We use..b. Aims of abilities.1. At th end of the class, the students will be able to understand the sentences”We should and We should not”and can use them to express their opinions about the earth.2. At the end of the class, the students will be able to retell one of the stories.c. Aims of emotions.1.At the end of the class, the students will be able to understand that “ We should protect the earth” because earth is our mother.2.At the end of the class, the students awareness of “protect the earth” should be aroused and do it in our daily life.Focus of the lesson and predicted area of difficulty教学重难点:1. At th end of the class, the students will be able to understand the sentences”We should and We should not”and can use them to express their opinions about the earth.2. At the end of the class, the students will be able to retell one of the stories.Preparation教学准备:PPT, books, teaching plans.Teaching procedures教学过程:Step 1. Warm upT :Good morning, boys and girls.S: Good morning, Miss/Mr..T : I have lots of hobbies, can you guess what are my hobbies?S: Do you like singing?T: Yes, I do.S: Do you like swimming?T: Yes, I like swimming very much.S: Do you like playing games?T: Yes, I do.T: But I like one thing best, guess.S: Do you like…?T: Yes, you’re so clever, I like riding bikes best, but why/S: Because I think it’s very healthy.T: Yes, because it’s very “green”(PPT presents the picture of Pm.2.5) T: why should we ride bikes?S: Because of the PM2.5Step 2 .PresentationT: Yes, the PM2.5 is so heavy, now let’s watch a video called”Our home”, please watch it carefully and tell me what things can you see in this video?(play the video)S: I can see some animals, they’re in danger.S2: I can some air pollutionS3: I can some water, they’re dirty.S4: I can see the trees, they’ve been cut down.S5: The earth is in danger. Animals are in danger/ Water is in danger….T: Yes, and also this(PPT presents the plastic bags and plastic bottles. )T: So today we’re going to learn” Protect the earth”.T: First, Let’s listen to the story and circle the problems.What problems are mentioned in the story?S: The problem is water.S2: Trees are the problems.S3: We should save energy.S4: And plastic.T: You did a good job, boys and girls.Now let’s listen to the tape again and tell the names of each story.T: Did you get it? Let’s check.S1: The first is save waterS2: The second is save energy.S3: Next is save trees.S4: Don’t use too much plastic.T: Well done, boys and girls, now let’s try to fill in the blanks.Energy comes from_____and____Teach oil and coal(PPT presents oil and coal)______ comes from the treesTeach wood.T: Now let’s read and judge, please read it by yourselves.S1: Water is useful,so we should not waste it. ( T )S2: We use water to clean the things every day. ( F )S3: There is much water in many places. ( F )S4: We should not reuse the water. ( F )T: Now we know water is useful, boys and girls, but why should we protect it and how?Please read and learn.用直线画出原因(Why do we save water?)虚线画出方法(How do we save water?)S1: Water is useful. In many places, there is not much water.S2: We should reuse and save it.T: Wonderful, boys and girls, now let’s listen to the tape and read after it.2.Save energyT: Now we know water is useful, what about energy? Please read and choose.S1:.Most of the energy comes from___B___.A. water and soil.B. coal and oil.S2. We should ____________ and we should not_______________.save energy; drive so muchdrive so much; save energyT: Now let’s find out why should we save energy and how to save it.用直线画出原因(Why do we save energy?)虚线画出方法(How do we save energy?)S: Because there is not much coal and oil on earth.S2: We should not drive so much because cars use a lot of energy.T: Yes, so I think we can ride bikes, now let’s listen to the tape and read after it.3. Save treesT: Now we know water and energy are important, what else?S: They’re trees.T: Yes, now please read by yourselves and then you can check with your deskmate.S1: Where does wood come from ?S2: Wood comes from trees. We use wood to make tables, chairs and many other things.S3: We should not cut down trees.S4: Why should we not cut too many trees?S5: Because trees help keep the air clean.T: Perfect, now let’s try to fill in the blanks, boys and girls.________comes from trees. We use ________ to make tables, chairs and many other things. We _____________cut down ______________trees because trees help ____________________.4. Don’t use too much plasticT: Now boys and girls, wood comes from trees, do the plastic come from the trees?S: No.T: So what do you know about plastic? You can have a group discussion.S: I know plastic bagsS2: I know plastic bottles.S3…T: Good, now let’s listen and answer, what can we use plastic to make?Should we use too much plastics?S1:We use plastic to make bags and bottles.S2: But use too much plastic is bad for our health. We should not use too many plastic bottles or bags.T: So what can we use? Please have a group discussion.S: We should use paper bagsS2: We should use glass bottles.S3; We should use…….T: Yes, we should not use too many plastic, paper is better, now let’s read after the tape.T: Now please get into a group and use the given words to say sth.about plastic..T: Ok, it’s time for reading, you can read by yourselves or get into agroup.Step 3 . Consolidation.T: “Protect the earth”speech time is coming, here are the tips, boys and girls,小组合作,每组选择文中的一个小主题.(可以借助板书)Why should we …?We should/shouldn’t..切合主题,提出保护口号.T: We should protect the earth because she nourishes us.Class is over, boys and girls, see you!S: See you!Homework1. Listen to the tape and read after it for at least five times.2. Try to retell the story.3. Finish the exercises book.Blackboard DesignWe should/ We should not use…We should reuse….。
Unit7 Protect the Earth第一课时一、教学内容:Unit 1 Protect the Earth(Story time)二、教学目标:1. 能听懂、会读、会说: coal, earth, oil, paper, plastic, wood, save, waste, reuse, energy。
2. 能听懂、会读、会说句型: We should use..to...We should not...3. 能正确地理解并朗读对话内容,在教师的引导和帮助下尝试复述课文。
4. 让学生保护环境的重要性和措施。
三、教学重点:1. 单词coal, Earth, oil, paper, plastic, wood的拼写,发音,用法2. 句型: Save..., We should use...to..., We shouldn’t ...。
3. 课文的复述。
四、教学难点:1.谈论课文四个方面的情况。
2.学生在了解的基础上,复述课文。
五、课前准备:挂图,卡片,PPT六、教学过程:Step 1Warm up:T: Boys and girls, let’s enjoy a song”Heal the World”by Michael Jackson.引出本科的话题。
T: Who knows the names of the song?S1: Heal the World.T: You’re right. What does the song talk about?S2: It’s about protecting the Earth.T: Right. We should protect the Earth. Make the Earth a better place foryou and me and the entire human race.Step2. Presentation1.Do a guessing game:教授可以用谜语的方式来呈现目标词汇,coal, oil和paper。
译林英语六上U7ProtecttheEarth教学设计(江苏徐建)全国第十届优质课大赛译林版英语六年级上册Unit 7 Protect the Earth(Period 2)江苏省苏州市工业园区星港学校徐建教学内容:Grammar time & Culture time教学目标:1.知识目标:①学生能正确运用use…to…句型表达某物的用途。
②学生能正确使用should,should not去给他人提出建议或意见。
③学生能理解Culture time的内容,了解environment的发音。
2.能力目标:学生能综合运用所学句型和词汇,有逻辑地表达自己的环保理念。
3.情感目标:树立环保意识,践行环保理念。
教学重点:1.两种句型的综合运用。
2.理解Culture time的内容,了解environment的发音。
教学难点:综合运用所学句型和词汇表达自己的环保理念。
教学过程:Step 1 Warming up1. Describe your new teacher.T:T oday I am so glad to be your new teacher. Would you like to say something about me?学生活动:组织语言描述新老师。
2. Lead in.T: I like reading. I often use my mobile phone to readmagazines. And my favourite magazine is “Time”. (介绍“年度风云人物”并引出The Earth.)Step 2 Presentation and practice1. Review the new words.T:What colour is the Earth? What are the green parts? What is th e blue part? What’s inside the Earth?学生活动:用本单元所学新单词回答。
Unit 7 Protect the Earth (Story time)(江苏省优质课评比教案)Step1: Pre-reading1.Lead-inT: Good morning, boys and girls.Ss: Good morning, Miss Zheng.T: I’m very happy to be your teacher today. I hope we can enjoy this lesson. OK?Ss: OK.T: Thank you. As you kno w I’m from…Ss: Yancheng.T: Yes. It is a very beautiful city. There are some rare wild animals in Yancheng. Can you guess what are they? Ss: They are…(展示丹顶鹤和麋鹿的图片问学生)T: Look, They are red-crowned cranes and milu deers. They live happily in Yancheng. Today I bring you a short story about an animal. Look, what’s this?S: It’s a bird.T: Yes. Let’s watch the cartoon. After watching it, please tell me: What can you see in the cartoon?T: What can you see in the cartoon?S: I can see a river?T: Is the river clean?S: No, it’s dirty.……T: What can you feel about the cartoon?S: …T: Yes. There are so many bad things. Who did these bad things?Ss: People.T: What do you want to say to these people?Ss: …T: Yes. We should protect the Earth, right?Ss: Yes.T: So t oday we’re going to learn Unit 7 Protect the Earth.(揭题,带领学生读课题)T: Look, this is the Earth. What do you know about Earth?Ss: …(展示地球多年前的一幅图和地球现在的一幅图,让学生比较后总结)T总结: Look, the Earth is not as beautiful as before. So let’s be the gree n guards to protect the Earth. OK? Ss: OK.T: How can we become green guards? Look, here are some steps.课件展示展示成为环保小卫士的步骤:1)We know how to protect the Earth from some parts2)We know the use of them3)We know the problems of them4)We know the solutions of the problems5)We can talk about protecting the EarthT: OK. Let’s go.3.Look and sayT: Now let’s go to step one. Look at the pictures. People are doing bad things to the Earth. Can you give titles to the pictures? Think it over.Ss: …Step2: While-reading1.Skim and findT: Wow, you gave lots of titles. Now open your books and turn to page 68. Can you find the titles from the text? Ss: …T: You did a good job on step one. Now can we find out the use of the four things?2.Watch and matchT: Let’s watch the cartoon. Find out the use of four parts and match the phrases.Ss看卡通后进行短语配对组成句子。
1)We use water to A. keep the air clean2)We use energy to B. drink and clean3)We use trees to C. drive cars4)We use wood D. make bags and bottles5)We use plastic to E. make tables and chairsT: They are useful. (总结,教读useful) Let’s read them together.Ss: …T: This time, please read part 2&3 quickly and fill in the blanks.Where does the energy come from? ---Most of our energy comes from coal and oil.Where does wood come from? ---Wood comes from trees.T: Good.4.Read and discussT: They are useful. But we can’t use them too much. There are some problems with them. So le t’s go to step 3. Read the passage again and discuss in pairs. Then try to find out their problems.(学生读课文和同桌讨论这四种能源发生的问题)T通过PPT总结:In many places, there is not much water.There is not much coal and oil.People cut down too many trees.People use too much plastic.5.Read, underline and fill in the blanksT: We know the problems. We should solve the problems. Please read the passage carefully and underline the solutions. (学生读课文,划出文中解决方法的句子。
)T: Can you find something in these sentences?Ss: We should… / We should not… Let’s finish the form according to the sentences you underlined.小练习:让我们根据划的句子来填写关键词吧。
Water: We should ________ and ________ water. We should not ________ water.Energy: We should ________ energy. We should not ________ so much.Trees: We should ________ trees. We should not ________ ________ too many ________.Plastic: We should not use too many ______ bags or bottles. We should use ________ bags and ________ bottles.6.Listen and repeat.T: Let’s follow the tape. Please try to imitate the pronunciation and intonation.7.Retell according to the formT: We know the use, the problems and the solutions of the four parts. Can you choose one part to talk with your partners?T: Hello, boy.S: Hello, Miss Zheng.T: We use water to drink and clean. What should we do with water?Ss: We should reuse and save water. We should not waste water.T: Thank you. You can be a green guard now.(让学生编对话来展示)Step 3: Post-reading1.Read the picture book and thinkT: Earth is our home. We can protect the Earth from these four parts. But that’s not enough. We can do more. I made a picture book for you. Let’s enjoy it and know more about the Earth. Please think about this question: How can we protect the Earth?Ss: …2. Make postersT: Yes, we can do a lot of things to protect the Earth. As green guards, we should perform our duties. Look, my student in Yancheng made a poster. Let’s make posters, too. And let more people know how to protect the Earth. OK? Now discuss with your group members and write down your suggestions about protecting the Earth on the posters. You can use the helpful phrases at the back of the paper. (先展示自己学生做的一份海报,后让学生小组讨论合作做海报,展示)T: 总结You are so great. I am very glad to be your teacher today. I really hope you can come to Yancheng one day. Welcome to Yancheng.Homework:Show your posters to more people and let them know how to protect the Earth.。