仁爱版九年级英语上册Unit2 Topic3 Section D教案

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1、U2T3SD1Section 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

2、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。九年级上册教学案例设计2. The key points and difficult points1.Key points: Words and phrases: dry, remove, place, cut down, so that, even thoughSentences: The weather may be ve

3、ry 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.Grammar: compound sentence 2. Difficult points： Forests were cut down to provide wood to build houses.Th

4、ere 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 strategies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/

5、PPT 等。U2T3SD3. Teaching procedures Stage(time period)InteractionpatternsTeacher activity Student activity Remarks1Revision(10 mins)Individual workStep 1: Encourage 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 sh

6、are your homework? xxx, how about you?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 wind will make the boat move. In the north part of China, in the countryside, farmers us

7、ually use wind to clean their corns. In spring, children use wind to fly their kites. People also use wind to 九年级上册教学案例设计4Individual workStep2: Let the Ss complete the blanks in Grammar and Functions.T: Wow, very good writing! Now please open your book and turn to page 49. Please fill in the blanks

8、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 produce power. Now, there are many countries building wind power stations.S2: Sunlight can produce a lot o

9、f energy. S3: Waves can produce a lot of energyS4: Complete Grammar and FunctionsS1: Ok. And, while, or, but.Ss: Yes.U2T3SD5Class activityto Functions?T: Is she right?Step3: Let the Ss sum up the compound sentences and expressions of giving suggestions.T: In this topic, we have learned compound sent

10、ences 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 them in writing and speaking. Next, lets sum up expressions of giving suggestions. What do you

11、usually use to give suggestions?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, after allS4: for, since, asS5: besides, whats more, whats worseS6: should, shouldnt, mu

12、stS7: had better, had better not, dontS8: ought to 九年级上册教学案例设计62Pre-reading(10 mins)Class activity Step 1: Present a short video about the Amazon rainforests to learn some new words and lead to 1a. T: What do people call the Amazon rainforests? T: Yes. Do you know why people call it like this?T: So

13、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 video about the destruction of the rainforests to lead to the necessity of

14、 planting trees.T: What have you seen?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 the 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。U2T3SD7T: Yes, in order t

15、o 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, many people have taken measures to do something. The volunteer planters around the world are planting new trees to replace destroyed

16、area.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 you want to know what difficulties the volunteers have to face, then re

17、ad the Read 1a and answer the questions on page 50.Ss: No.S1: Very tired.S2: Very hungry.S3: 很渴。S4: 让学生先读 P50 的问题，带着问题阅读效率更高。九年级上册教学案例设计8passage. 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

18、found the answer to Q1?T: Good job! Q2, how about you, xxx?T: Yes. Q3, who knows?S5: Forests remove carbon dioxide and make oxygen, like the lungs of human beings.S6: Bad weather, insects, dangerous.S7:For birds and animals.4Post-reading(10 mins)Individual workStep1: Let the Ss read the passage, and

19、 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 Read the passage, and find the compound sentences and other difficult poi

20、nts.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。U2T3SD9sentences. 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”

21、at the same time. So you cant see the word “but” in “Even though tree planting is very difficult, they love their work”. Besides, sometimes we S1: Yes. The weather may be very hot 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 dan

22、gerous.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”? 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九年级上册教学案例设计10Group workuse “while” to make up an adverbial clause of time. For e

23、xample, 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, and 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

24、a tree planter when you grow up?Discuss Q4 and Q5.S1: If we dont 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

25、. I think the companies and government should do something. Because, I 句，不是并列句。U2T3SD11T: That sounds wonderful. 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: 5Finishingproject(7 mins)Group workGro

26、up 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: Let the Ss compare their sc

27、ores with their group members and find the greenest and give reasons.T: Now compare your result with 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.九年级上册教学案例设计12members and find who is

28、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, who is the greenest in your group?Ss: Yes.S1: xxx is the greenest in our group. He often recycles newspapers and cans. He goes to school on foot. He never eats fa

29、st 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 thing is that w

30、e have learned how to be a U2T3SD13greener 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 sentence

31、s:Cnjunctions：and,while, or, but, not onlybut alsohowever, because,after all ,give suggestions:should,shouldnt , ought to, had better, Dont,cut downeven thoughSentences:九年级上册教学案例设计14The 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.