Unit 4 Amazing Science-Topic 1 When was it invented -Section A-教案、教学设计-市级公开课-仁爱科普版九年级上册(配套课件编号：b6655).doc

1、U4T1SA 1 Unit 4Amazing Science Topic 1When was it invented? Section A . Material analysis 本课是九年级第四单元第一话题的第一课时。主活动是 1a 和 2。1a 通过 Kangkang 和 Jane 谈论火箭模型，引入本课的语法：一般 过去时的被动语态。1b 是检查学生听 1a 的效果，1c 则是检查学生阅读理解的能力。2 重点操练 be made of，be made from 和 be used for。3a 以听的形式让学生加深对 2a 的句型和 1a 的语法的理解。3b 让学生能够把本课的句型和语法

2、正确地说出来。总之，本课把 句型和语法充分地融合到听、读、说当中。 . Teaching aims 1. Knowledge aims： 掌握本课的重点词汇和短语，初步学习一般过去时的被动语态。 2. Skill aims: 能够在听、说、读、写中正确运用一般过去时的被动语态。 3. Emotional aims: (optional) 九年级上册教学案例设计 2 鼓励学生要勤思考、有理想、争做未来的发明家。 4. Culture awareness: (optional) 了解其他国家的科技发明。 . The key points and difficult points 1. Key po

3、ints: Words and phrases: lock, metal, be made of, be made from, be made in, be used for, be allowed to do sth. Sentences:Whats it made of? Its made from wood. Whats it used for? Its used for locking the door. I wish I could go into space some day. I hope your dream will come true. Grammar: was/were

4、+pp 2. Difficult points： be made of 和 be made from 的用法辨析。 I wish I could go into space some day. Its used for writing on . . Learning strategies U4T1SA 3 通过温习一般现在时的被动语态知一般过去时的被动语态，实现从一般现在时的被动语态到一般过去时的被动语态的转换。 通过联系生活实践，来区分 be made of 和 be made from。 在交流中，重在表意，不要担心出错。 . Teaching aids 有关新词的图片/实物（如：数码相机

5、,锁）/录音机/小黑板/PPT。 . Teaching procedures Stage (time period) Interaction patterns Teacher activityStudent activityRemarks 1 Revision & lead-in (10mins) Class activityStep 1: Let the Ss change the sentences in Group Ainto present passive voice. T: Look at these sentences and try to change them into pas

6、sive voice. T: xxx, do you want to try the first one? T: Wonderful! The second one? Example: Group A People speak English around the world. Change the present active voice into passive voice. S1: English is spoken by people 通过复习一般现在时的 被动语态来过渡到一般 过去时的被动语态。 以旧 引新、 比较学习能让学生 更快地掌握新知识。 九年级上册教学案例设计 4 Grou

7、p work The monkeys eat the bananas. Water washes away the earth. The chemical factory pollutes the river. . Step 2: Present the sentences in Group B and encourage the Ss to discuss in groups and change them into passive voice, too. T: You have done very well. Now look at this group of sentences. Aga

8、in, you change them into passive voice, but this time, you will discuss in groups first. T：Any volunteers? T: Which group has different opinions? T: Thats nice. How about Sentence Two? T: Perfect! Example : around the world. S2: The bananas are eaten by the monkey. S3:. Change the past active voice

9、into passive voice. S1: Basketball is invented by a P.E teacherintheUSAinthe nineteenth century. S2: Basketball was invented by a P.E teacher in the USA in the nineteenth century. 一定要把学生说出的被 动语态的句子板书出来， 为后面的教学作准备。 U4T1SA 5 Group work Group B A P.E teacher in the USA invented basketball in the ninete

10、enth century. The worker cut down the trees yesterday. I made this model plane. Mr. Wang punished him. The cat ate the fish. . Step 3: Let the Ss observe the two groups of sentences and try to find the differences between them. Move to past passive voice. T: Observe the two groups of sentences in yo

11、ur group and find out the differences between them. T: Hi, class, have you found anything different? S3: The trees were cut down by the workers yesterday. S4: This model plane was made by me. S5: He was punished by Mr. Wang. S6: The fish was eaten by the cat. Observe the two groups of sentences and

12、try to find the differences between them. 如果学生能正确地表述 过去时的被动语态， 老师 直接板书， 如果不能， 老 师要引导学生总结出来。 九年级上册教学案例设计 6 T: Your group is wonderful today. Anything else? T: Great! Can you guess what we call the sentences in Group B? T: Yes. You made it. Could you tell me the structure of it? S1: Group A is in pres

13、ent tense while Group B is in past tense. S2: We use “is” or “are” in group A, but we use “was” or “were” in Group B. S3:过去时的被动语态。 S4: was / were + pp 2 Pre-listening (4mins) Class activity Individual work Step 1: Use pictures, real objects or PPT toteach:rocket,satellite,spaceship, metal. T: Look a

14、t the picture. Whats it? Step 2: Let the Ss read the statements in 1b and guess the meaning of be made of. T: Now, read the statements in 1b and try to guess the meaning of be made of . T: Who knows the meaning of be made of? Hands up, please! Learn the new words. Ss: Its a rocket. Ss:. Read the sta

15、tements in 1b and guess the meaning of be made of. S1:被.制成 这几个单词需要老师引 导才能学习。 U4T1SA 7 T: Almost right, but not exactly. Anyone else? T: Good boy! You got it! S2:由.制成 3 While-listening (2mins) Individual work Let the Ss listen to 1a and do 1b. T: Now, listen to 1a and do 1b. We will check the answers

16、 after listening. T: Has everybody got the answers? T: Yes! You please. T: Next one? T:. Listen to 1a and do 1b. S1: No.1 is F S2: No.2 is F S3:. S4:. 4 Post-listening (12mins) Individual work Step 1: Let the Ss read the questions in 1c, and then read 1a and find the answers to the questions. T: Her

17、e are 4 questions in 1c. Read them quickly, and then read 1a and underline the answers to the questions. If you finish, Read the questions in 1c, then read 1a and find the answers to the questions. S1: Because its bad for her health if she spends too much time on computer games. 九年级上册教学案例设计 8 Indivi

18、dual work raise your hand, please. T: Now, its time to check the answers. Please use full sentence while answering. Who wants to answer the first question? T: Perfect answer! Who wants to try the second one? T:. Step 2: Let the Ss read 1a again and underline the passive voice and the key points. T:

19、Now, you will read 1a again. This time, you will underline the passive voice, the difficult points and key points. When you finish, raise your hand. T: First, lets deal with the passive voice. xxx, please. T: You are smart. Lets come to the S2: A rocket is used for sending satellites or spaceships i

20、nto space. S3:. Read 1a again and underline the passive voice and the key points. S1: I was not allowed to play computer games last night. S2: It was made by me. S3: Whats it made of? . S4: Why “could” is used in the second sentence from the bottom? Can I use “can” instead? S5: be allowed to do sth.

21、, be bad for S6: spend . on sth., be made of S7: be used for doing sth. U4T1SA 9 second part: the difficult points. Who has questions? T: Good question! Its a very important sentence. Its usually used to express wishes，but its unlikely to come true. T: Now, what about key points? Come on! learnfrom,

22、 come true wish 表示祝愿、愿望， 要给学生强调这个愿望 不太可能实现。但不要 讲得太深，虚拟语气可 以不提。 5 Finishing Task 2 (5mins) Individual work Step 1: Let the Ss read the examples in 2 and find the differences between Example One and Example Two. T: Now, read the examples in 2 and find the differences between Example One and Example Tw

23、o. T: What differences have you found? Read the examples in 2 and find the differences between Example One and Example Two. S1:“Be made of”is used in Example 1 and“be made from” 这个部分分成两步骤来 完成较好。第一，帮助 学生区分 be made of 和 be made from 的用法。 第 二，如何运用介词。理 解这两点，有利于学生 构建对话。学生不能解 释清楚的老师要补充。 老师在此过程中，顺便 九年级上册教学

24、案例设计 10 T: Superb! What else? T: Right! If you can see the material with your naked eyes, you should use “be made of”. If not, use “be made from”. For example, the lock is made of metal. You can see it clearly with your naked eyes. But, as for the paper, you cant see wood directly with your naked ey

25、es, so you say the paper is made from wood. Now, look at the pictures below the dialogs. See if you can see the material with your naked eyes . T: Lets check. Computer desk, be made of or be made from? is used in Example 2. S2: There is a preposition “on” after “write”, but there is no preposition a

26、fter “lock”. Ss: Be made of. 解释 lock。为了简单明 了，老师可以用汉语解 释，因为涉及到不少术 语，学生难以听懂。 U4T1SA 11 Pair work T: Chopsticks? . T: Well done! How do we decide whether to use a preposition or not? The answer is: if the action is done by the object itself,thereisnoneedtousea preposition, and if not , then a prepositi

27、on is needed . Step 2: Let the Ss make up similar dialogs in pairs. T: Now, lets do pair work. Make up similar dialogs. Go ahead! T: Id like some pairs to act out your dialogs . Which pair ? Ss: Be made of. . Make up similar dialogs in pairs. S1:Whatsthecomputerdesk made of ? S2: Its made of wood 九年

28、级上册教学案例设计 12 T:.S1: Whats it used for? S2: Its used for putting computers on. 7 Finishing Task 3a (5mins) Individual work Step 1: Let the Ss look at the pictures in 3a to learn the new words laptop and digital, and then listen to 3a and number the pictures. T: Do you know what the picture 1 is? T: Y

29、es, but we call it a laptop. Because we usually put it on the top of our lap while using it. T: How about the picture 3? T: Its a digital camera. T: Now, you will listen to 3a and number the pictures. T: Check answers! Learn the new words, listen to 3a and number the pictures. Ss: Its a computer. Ss

30、: Its a camera. Ss:. U4T1SA 13 Individual work Step 2: Let the Ss listen to 3a again and fill in the table in 3a. T: Listen to 3a again and fill in the table in 3a. T: Now, lets check the answer one by one. First, laptop. What is it made of? T: Whats it used for? T:. Listen to 3a again and fill in t

31、he table in 3a. S1:Its made of plastic. S2: Its used for . S3:. 8 Finishing Task 3b (3mins) Pair work Let the Ss read the example in 3b, and then make up similar dialogs in pairs based on the information in the table in 3b. T: First, read the example in 3b, and then make up similar dialogs in pairs

32、based on the information in the table in 3a. T: Good news! I will have a photo with the first pair! Which pair will be the first Read the example in 3b, and then make up similar dialogs in pairs based on the information in the table in 3b. S1: What is a cellphone made of ? S2:Its made of plastic and

33、 metal. 九年级上册教学案例设计 14 one?S1: Whats it used for? S2: Its used for making telephone calls . S1:. S2:. 9 Summarizing and assigning homework (4mins) Class activityStep 1: Let the Ss go over this section and sum up the key points T: We have only a few minutes left. Lets sum up the key points of this se

34、ction. T: Lets begin with grammar. T: Whats the structure of it? T: And key points? 2:HMK T: Now, computers are widely used in our daily life. But do you know the history of computers? Find some information about computers and write a short passage. Try Sum up the key points. Ss: Passive voice in th

35、e past. Ss: Was / were + pp S1: Be made of , be made from, be used for doing sth. S2: Allow sb. to do sth., be allowed to do sth. S3: Spend on sth. S4: I wish. S5: U4T1SA 15 to use the past passive voice as much as possible. . Blackboard design When was it invented ? Section A Words and phrases: be made of come true be used for doing sth. be made from Grammar: the past passive voice structure: was / were + pp Sentences: Whats it made of ? Its made from wood. Whats it used for? Its used for locking the door. I wish I could go into space someday. I hope your dream will come true.