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1、Unit 4 Amazing ScienceTopic 1 When 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正确地说出来。总之，本课把句型和语法充分地融合到听、读、
2、说当中。. Teaching aims1. 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) 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 points1. Key points: Words and phrases: lock, metal, be made of, b
3、e 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 +pp2. Difficult points：be made of和be made from的用法辨析。
4、 I wish I could go into space some day. Its used for writing on . Learning strategies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,锁）/录音机/小黑板/PPT。. Teaching proceduresStage(time period)InteractionpatternsTe
5、acher activityStudent activityRemarks1Revision & lead-in(10mins)Class activity Group workGroup workStep 1: Let the Ss change the sentences in Group A into present passive voice.T: Look at these sentences and try to change them into passive voice. T: xxx, do you want to try the first one?T: Wonderful
6、! The second one?Example: Group APeople speak English around the world.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 ha
7、ve done very well. Now look at this group of sentences. Again, 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 : Group BA P.E teacher in the USA invent
8、ed basketball in the nineteenth 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
9、 of sentences in your group and find out the differences between them.T: Hi, class, have you found anything different?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?Change the pr
10、esent active voice into passive voice.S1: English is spoken by people around the world.S2: The bananas are eaten by the monkey.S3:.Change the past active voice into passive voice.S1: Basketball is invented by a P.E teacher in the USA in the nineteenth century.S2: Basketball was invented by a P.E tea
11、cher in the USA in the nineteenth century.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 try to find the differences between them.S1: Group A is in pres
12、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。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。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。2Pre-listening (4mins)Class
13、 activity Individual workStep 1: Use pictures, real objects or PPT to teach: rocket, satellite, spaceship, metal.T: Look at 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 mad
14、e of .T: Who knows the meaning of be made of? Hands up, please!T: Almost right, but not exactly. Anyone else?T: Good boy! You got it!Learn the new words.Ss: Its a rocket.Ss:.Read the statements in 1b and guess the meaning of be made of.S1: 被.制成S2: 由.制成这几个单词需要老师引导才能学习。3While-listening (2mins)Individual workLet the Ss listen to 1a and do 1b.T: Now, listen to 1a and do 1b. We will check the answers 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 FS2: N
