仁爱版九年级英语上册Unit2 Topic3 Section C教案

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1、U2T3SC1Section C. Material analysis本课是第二单元第三话题的第三课时。主活动是 1a。1a 介绍了世界各地的人们如何开发和利用环境友好型和资源节约型的新能源，同时也指出了这些新能源的利用方式所存在的不足之处。在介绍的过程中，让学生学到更多并列句的连接词。如：however, not onlybut also等。1b 通过图片匹配可以帮助学生形象地理解比较陌生的事物。1c 培养学生归纳处理信息的能力。2a 和 2b 是两个关联性很强的任务。2a 指出人们可以利用可再生能源来发电，并让学生讨论怎样利用这些可再生能源，然后在 2b 环节形成书面报告。这两个环节，其实

2、是培养学生学会作记录，并根据记录整理成短文的能力。2b 是个书面活动，可以留作家庭作业。.Teaching aims1.Knowledge aims： 掌握本课的重点词汇和短语，继续学习并列句。2.Skill aims: 学会更多连接并列句的方法。学会在讨论中作记录，并整理记录使之成文。能够对信息进行分类处理。3.Emotional aims: (optional)激发学生探索利用新能源的热情。九年级上册教学案例设计24.Culture awareness: (optional)了解世界各国在开发和利用新能源方面的现状和成就。. The key points and difficult poi

3、nts1. Key points: Words and phrases: technology, renewable, disadvantage, require, German, wheel, guide, deep, run out, source, worldwide, producefrom, not onlybut also, tootoSentences: However, nuclear power can be very dangerous.It can not only protect the environment but also save energy.Its too

4、small to hold many people.Grammar: compound sentence 2.Difficult points： 理解文章中出现的大量专业术语。如：biogas technology, maglev trains 等。理解文中出现的被动语态。如:This renewable energy is used in peoples everyday lives.Electric vehicles were developed in the 1990s.Its too small to hold many people, but larger models will b

5、e developed in the near future.理解文中出现的表语从句。如：U2T3SC3Its key disadvantage is that the process requires a long time (up to 30 days) and the high cost for its building. Learning strategies在 1a、1b 和 2a 中，能够根据文字描述进行图文匹配。在 1c 环节能够根据要求获取不同的信息，并能根据所完成的图表复述文章的大意。要养成在讨论中作记录的好习惯，并利用记录的要点来组织短文。利用课文中的插图和教材附录中的资料

6、来理解课文。. Teaching aids教学新词的图片（如：1a, 1b, 2a 的插图、电动摩托图片、核电站图片） / PPT 等。. Teaching procedures Stage(time period)InteractionpatternsTeacher activity Student activity Remarks1Revision（10 mins)Group workLet the Ss make a survey and report to the class to finish 4 in Section B.T: Hi, boys and girls! Lets be

7、gin our class. Make a survey and report to finish 4 in Section B.Ss: Yes.九年级上册教学案例设计4Please turn to page 46. Lets do the survey in 4. Have you made the list after class?T: Fine. Now work in groups as usual. Make a survey in your group. You can follow the example in 4. The group leader should collect

8、 the information and report it to the class. When you finish, put up your hand.T: Stop, please! Now, its time to report. Which group wants to report first?S1: In our group, xxx always shuts off the electricity when he leaves the room or when the room is bright enough. xxx always turns off the tap wh

9、en he doesnt use it. xxx always puts the plastic bottles in a big box and xxx always uses both sides of the paper .U2T3SC5T: I am very glad that you have a good habit of dealing with the waste. S2: In our group, S3: In our group,2Pre-reading（5 mins)Class activityPresent the pictures in 1a, 1b and 2a

10、 to learn the new words.T: Now, I will show you some pictures. Try to tell me what the picture is in English. Now, look at this picture, whats it?T: Yes. Its an electric motor. I often come to school on my electric motor. What about this one?T: You are right. Its a train. People call it maglev train

11、. Its different from the traditional steel railways. It has no wheels but it runs very fast. It can run more than four hundred km per hour. Learn the new words.S1: Motor.S2: It looks like a train. 这一课词汇较多，而且有很多专用术语，老师要运用各种方法先讲解部分新词。如：运用图片、构词法或课前集中预习等。electric(adj)+ ity(名词后缀)=electricity(n), re(again

12、)+new+able（能的）=renewable(adj) ,dis(no)+advantage=disadvantage (n)。本课词汇较多，对于课程标准没有要求掌九年级上册教学案例设计6T: (Use the same way to deal with other words.)握的词汇，只要学生能理解即可。3While-reading(8mins)Individual workIndividual workStep 1: Let the Ss read 1a, and match the pictures in 1a and 1b.T: Next, you will read 1a,

13、and match the pictures in 1a and 1b while reading. When you finish, put up your hand. T: Who would like to tell us the answers to 1a?T: Do you agree with her?T: How about 1b? Volunteers! T: Is he right?Step 2: Let the Ss read 1a again and complete the table in 1c. Check the answers. T: You have lear

14、ned something about biogas, electric vehicles and maglev trains. Each has its key advantages and disadvantages. Now, Read 1a and match the pictures in 1a and 1b.S1: C-A-B.Ss: Yes.S2: B-C-A.Ss: Yes.Read 1a again and complete the table in 1c. Check the answers.U2T3SC7read 1a again, find their advantag

15、es and disadvantages and put them in the table in 1c. When you finish, raise your hand, please.T: Shall we check the answers now?T: xxx, whats the advantage and disadvantage of biogas?T: Oh, you all did it very well.Ss: No problem.S1: Advantage: renewable Disadvantage: long process and high cost for

16、 its buildingS2: S3: 4Post-reading(10 mins)Individual workGroup workStep 1: Let the Ss guess the meanings of “best-known, German, efficient, guide, path” and then learn them with the help of the vocabulary list.T: Now, lets solve the words. First, youd better guess the meanings of these words, and t

17、hen learn them by yourself with the help of the vocabulary list.Step 2: Let the Ss read 1a, and discuss in Guess the meanings of “best-known, German, efficient, guide, path” and then learn them with the help of the vocabulary list.Read 1a, and discuss in groups to find the compound sentences and 对 b

18、est-known, German 也可以辅以构词法来讲解：Germany(n,国家名 )German (n, 人)，best+ known(famous) =best-known (adj.)对本课出现的被动语态和九年级上册教学案例设计8groups to find the compound sentences and other difficult points.T: You have read 1a twice, but have you noticed that there are many compound sentences in the passage? Besides, I k

19、now there are some difficult points for you. So Id like you to read the passage again, and discuss in groups to find out the compound sentences and difficult points. If you finish, please let me know.T: Group1, could you tell us the compound sentences you have found?other difficult points. S1: In ma

20、ny countries, peoplecoal,but it isand causes acid rain.However, nuclear power can be very dangerous.It can not only protectbut also save energy.Its too small to hold many people,表语从句，老师不要细讲，只要学生能理解句子意思即可。建议老师直接用汉语解释。U2T3SC9Class activityT: Wow, there are so many compound sentences in this passage. T

21、hen lets deal with the difficult points.Step3: Deal with the difficult points.but future.S2: There is no wheel noise, because there are no wheesl.Maglev trains are very energy-efficient and do not pollute the air.However, maglev guide paths aresteel railways.Understand the difficult points.5Finishin

22、gTask 2a(8 mins)Class activity Step 1: Let the Ss look at the pictures in 2a to learn the new words.T: We know coal, oil and gas are unrenewable sources, and they will run out in the future. So people are finding new ways to produce power. Now, look at the pictures in 2a, do you know what kind of na

23、tural sources Learn the new words.Ss: 太阳能。地热能是学生所不熟悉的，老师要适当地解释一下。九年级上册教学案例设计10Individual workis used? Lets start with Picture 1.T: Yes, in picture 1, people use sunlight. Picture2?T: In some places, there is hot water coming from deep in the earth. If the water is too hot, it becomes steam. In the p

24、ast, people used steam to drive trains and ships. Now, can you guess what “steam” means?T: Yeah! Then Picture 3?T: Yes. And the last one?T: Clever! Sea waves are natural sources, too. Step2: Let the Ss read 2a and match the pictures with the sentences.T: You have learned about these renewable source

25、s. Now, read 2a quickly and match the pictures with the sentences. If you finish, put Ss: 不知道。S1: 蒸汽。Ss: 风力发电。Ss: 海浪。U2T3SC11Group workup your hand.T: xxx, could you tell us your answers?T: Is that right?Step3: Let the Ss discuss in detail about the use of one kind of energy sources.T: From the pass

26、age, we know that these sources are used worldwide. Now, Id like you to discuss in detail how to use one of these sources in groups. Youd better take notes while discussing. Because you will write a short passage based on the discussion. S1: Sure. 2-4-1-3Ss: Yes.Discuss in detail about the use of on

27、e kind of energy source.6Summarizing and assigning homework(4 mins)Class activity Step1: Let the Ss retell the main content of 1a according to the table in 1c. T: How time flies! Its time to retell the main content of 1a now. Ready? Go! Retell the main content of 1a according to the table in 1c.T&Ss

28、: Biogas is renewable. Farmers recycle straw, grass and animal waste to make biogas. But it requires long time to produce 让学生单独复述课文有一定的难度，最好是老师带着一起复述。九年级上册教学案例设计12Step 2 : HMKT: You have discussed and taken note in 2a. After class, you should write a short passage with the notes. You may follow the

29、example in 2b.biogas and it costs much to build them. Electric vehicles can not only protect the environment but also save energy. But its too small to hold many people. Maglev trains run very fast and quietly. They are energy-efficient and they have no pollution. However, the paths are much more ex

30、pensive than the traditional steel railways.U2T3SC13. Blackboard designWhat can we do at home to protect the environment?Section CWords and phrases：electric motor 电动摩托maglev train 磁悬浮列车technologyrequireGrammar：compound sentences: 并列句conjunctions: 连接词but, however, and , not onlybut also,Sentences:However, nuclear power can be very dangerous.It can not only protect the environment but also save energy.Its too small to hold many people., but it is very dirty and causes acid rain.Germanwheelguidedeeprun outdis+advantage=disadvantage (n)re(使)+new+able（能的）=renewable(adj)not onlybut also