最新仁爱版九年级英语上册Unit 2 Saving the Earth Topic 3Section D 教案.docx

1、最新仁爱版九年级英语上册Unit 2 Saving the Earth Topic 3 Section D 教案Unit 2 Saving the Earth 教案Topic 3 What can we do at home to protect the environment?Section D. Material analysis本课是第二单元第三话题的第四课时。主要活动是阅读文段和Project。Grammar 和Functions 让学生总结本话题的语法重点（并列句）和重要的句子（包括英语习语）。短文介绍了森林的重要作用、森林遭到破坏的情况及义务植树人的艰难付出。Project部分采用

2、调查问卷的形式来寻找本班“最环保的人”。这个活动很有教育意义，可以让学生增强环保意识，争做一个坚定的环保人士。.Teaching aims1.Knowledge aims： 掌握本课的重点词汇和短语，归纳并列句的用法。2.Skill aims: 掌握常见的并列句，并能在写作或口语交际中运用。在Project中，能够根据问卷要点整理成文。3.Emotional aims: (optional) 增强环保意识，争做一个坚定的环保人。 4.Culture awareness: (optional) 了解世界范围内人们的环保行动。. The key points and difficult point

3、s1.Key points: Words and phrases: dry, remove, place, cut down, so that, even thoughSentences: The weather may be very hot and dry or it may be very cold and wet. They carry heavy bags of small trees, and working in the mountains can be dangerous. Even though tree planting is very difficult, they lo

4、ve their work.Grammar: compound sentence 2. Difficult points： Forests were cut down to provide wood to build houses.There are often many insects that bite these planters on their legs, arms and faces while they work.Even though tree planting is very difficult, they love their work. . Learning strate

5、gies 在Grammar部分，能够和老师一起总结归纳并列句的用法，使之内化为自己的知识。 能够利用问题来预测短文的内容。. Teaching aids亚马孙热带雨林的视频或图片/亚马孙热带雨林遭到破坏的视频或图片/教学新词的图片/ PPT等。. Teaching procedures Stage(time period)InteractionpatternsTeacher activityStudent activityRemarks1Revision(10 mins)Individual workIndividual workClass activityStep 1: Encourage

6、the Ss to read their homework assigned in Section C.T: Hi, boys and girls! Lets begin our class with your homework. Who would like to share your homework? xxx, how about you?Step2: Let the Ss complete the blanks in Grammar and Functions.T: Wow, very good writing! Now please open your book and turn t

7、o page 49. Please fill in the blanks in Grammar and Functions. When you finish, raise your hand.T: Now, xxx, will you please tell us your the answers to Grammar?T: Do you think so, class?T: Who would like to share your the answers to Functions?T: Is she right?Step3: Let the Ss sum up the compound se

8、ntences and expressions of giving suggestions.T: In this topic, we have learned compound sentences and giving suggestions. Now, lets sum up. Could you tell me the conjunctions used to combine compound sentences?T: Wonderful! You can name so many conjunctions. I hope you will remember them and use th

9、em in writing and speaking. Next, lets sum up expressions of giving suggestions. What do you usually use to give suggestions?Read their passages assigned in Section CS1: Wind can produce a lot of energy.People use wind to travel on the sea. They put a large piece of cloth on the boat, and then the w

10、ind will make the boat move. In the north part of China, in the countryside, farmers usually use wind to clean their corns. In spring, children use wind to fly their kites. People also use wind to produce power. Now, there are many countries building wind power stations.S2: Sunlight can produce a lo

11、t of energy. S3: Waves can produce a lot of energyS4: Complete Grammar and FunctionsS1: Ok. And, while, or, but.Ss: Yes.S2:Greener, shut off, easier, louder, reach.Ss: Yes.Sum up the compound sentences and expressions of giving suggestions.S1: and, but, while ,orS2: however, soS3: not only but also,

12、 after allS4: for, since, asS5: besides, whats more, whats worseS6: should, shouldnt, mustS7: had better, had better not, dontS8: ought to 2Pre-reading(10 mins)Class activityStep 1: Present a short video about the Amazon rainforests to learn some new words and lead to 1a. T: What do people call the

13、Amazon rainforests? T: Yes. Do you know why people call it like this?T: So it does. It removes carbon dioxide and makes oxygen. Do you want to live there?T: No? Why?T: What you said is right. There are many kinds of insects there. If they bite you, you may lose your life.Step2: Present another short

14、 video about the destruction of the rainforests to lead to the necessity of planting trees.T: What have you seen?T: Yes, in order to get money or farmland, people cut down the trees in the rainforests. As a result, the world climate may change and many birds and animals may be in danger. Luckily, ma

15、ny people have taken measures to do something. The volunteer planters around the world are planting new trees to replace destroyed area.Learn some new words and lead to 1a Ss:地球之肺。Ss:因为它吸收了大量的二氧化碳并释放氧气。Ss: No.S1:太潮湿了。S2: 有各种各样的有毒生物。如：蛇，蜘蛛等等。Learn about the destruction of the rainforests to lead to t

16、he necessity of planting trees. Ss: 大量的雨林被毁掉了。最好是播放一小段亚马孙热带雨林的视频，图片没有震撼力。3While-reading (6 mins)Individual workLet the Ss read 1a and answer the questions on page 50.T: Have you ever planted trees in the mountains?T: Now just imagine what problems you may have if you are one of the planters.T: If yo

17、u want to know what difficulties the volunteers have to face, then read the passage. But before reading, please read the questions on page50 and try to find the answers to Q1 to Q3. When you finish, please raise your hand.T: xxx, have you found the answer to Q1?T: Good job! Q2, how about you, xxx?T:

18、 Yes. Q3, who knows?Read 1a and answer the questions on page 50.Ss: No.S1: Very tired.S2: Very hungry.S3: 很渴。S4: S5: Forests remove carbon dioxide and make oxygen, like the lungs of human beings.S6: Bad weather, insects, dangerous.S7:For birds and animals.让学生先读P50的问题，带着问题阅读效率更高。4Post-reading(10 mins

19、)Individual workGroup workStep1: Let the Ss read the passage, and find the compound sentences and other difficult points.T: You have learned the main content of the passage. Next, well solve the difficult points. Now, read the passage again, and find the difficult points as well as compound sentence

20、s. If you finish, put up your hand.T: First, lets check the compound sentences. xxx, have you found some yet?T: Well done! Who has any questions?T: T: T: Attention please! In English, we cant use “though/ even though” and “but” at the same time. So you cant see the word “but” in “Even though tree pl

21、anting is very difficult, they love their work”. Besides, sometimes we use “while” to make up an adverbial clause of time. For example, the sentence “There are oftenand faces while they work.”Step2: Let the Ss discuss Q4 and Q5.T: We havent finished the questions on page 50. Now, discuss Q4 and 5, a

22、nd then make a report.T: Group 1, what are your ideas about Q4?T: What you said is absolutely right. Then, would you like to be a tree planter when you grow up?T: That sounds wonderful. Read the passage, and find the compound sentences and other difficult points.S1: Yes. The weather may be very hot

23、and dry or it may be very cold and wet.S2: They carry heavy bags of small trees, and working in the mountains can be dangerous.S3: What does “were cut down” in Para1 mean?S4: How to understand the word“that”in the sentence“There are often many insects thatthey work”?Discuss Q4 and Q5.S1: If we dont

24、plant new trees, the forests will become smaller and smaller. Without trees, the wind and the water will take the earth away, and the oxygen in the air will become less and less. S2:If we dont plant new trees,S3: Maybe, its hard to say. I think the companies and government should do something. Becau

25、se, I have no time and I have to work to make money. I think on Tree-Planting Day, everyone should stop working and go to plant trees in the mountains.S4: 对于文章中的过去时的被动语态和定语从句，只要学生理解意思即可，不要讲太多。老师也可以用汉语解释更节约时间。老师要提醒学生though, even though 与but 不能同时连用。也要讲一下，当“while”表示“当.的时候”连接的是时间状语从句，不是并列句。5Finishingpro

26、ject(7 mins)Group workGroup workStep1: Let the Ss complete the questionnaire in Project, and add up the total scores.T: Do you think you are a greener person? Now, answer the questions in Project, and add up the total scores, and then see how green you are. If you finish, put up your hand.Step 2: Le

27、t the Ss compare their scores with their group members and find the greenest and give reasons.T: Now compare your result with your group members and find who is the greenest in your group. When you are reporting, you should tell us why he is the greenest .T: Are you ready to report?T: OK. Group 2, w

28、ho is the greenest in your group?Complete the questionnaire in Project and add up the total scores.Compare their scores with their group members and find the greenest and give reasons.Ss: Yes.S1: xxx is the greenest in our group. He often recycles newspapers and cans. He goes to school on foot. He n

29、ever eats fast food and he always reuses plastic bags when shopping.S2: xxx is the greenest in our group, because she6Summarizing and assigning homework(2 mins)Assign the HMKT: We have finished this topic. We have learned how to combine compound sentences and give suggestions. The most important thi

30、ng is that we have learned how to be a greener person. I would like you to write a short passage with the title“How to be a greener person”after class. Blackboard designWhat can we do at home to protect the environment?Section DWords and phrases:dryremovereplaceinsectbiteplanterGrammar:compound sent

31、ences:Cnjunctions：and,while, or, but, not onlybut alsohowever, because,after all ,give suggestions:should,shouldnt , ought to, had better, Dont,cut downeven thoughSentences:The weather may be very hot and dry or it may be very cold and wet.They carry heavy bags of small trees, and working in the mountains can be dangerous.Even though tree planting is very difficult, they love their work.