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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)Individu
15、al 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: No.2 is FS3:.S4:.4Post-listening (12mins)Individual workIndividual workStep
16、1: Let the Ss read the questions in 1c, and then read 1a and find the answers to the questions.T: Here are 4 questions in 1c. Read them quickly, and then read 1a and underline the answers to the questions. If you finish, raise your hand, please.T: Now, its time to check the answers. Please use full
17、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: Now, you will read 1a again. This time, you will underline the passive voice, the difficult po
18、ints 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 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
19、to come true.T: Now, what about key points? Come on!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.S2: A rocket is used for sending satellites or spaceships into space.S3:.Read 1a again and
20、 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., be bad forS6: spend . on sth., be mad
21、e ofS7: be used for doing sth. learnfrom, come truewish 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。5FinishingTask 2(5mins)Individual workPair workStep 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 differen
22、ces between Example One and Example Two.T: What differences have you found? 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.
23、But, as for the paper, you cant see wood directly with your naked eyes, 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?T: Chopsticks?.T: Well done! How
24、 do we decide whether to use a preposition or not? The answer is: if the action is done by the object itself, there is no need to use a preposition, and if not , then a preposition is needed .Step 2: Let the Ss make up similar dialogs in pairs. T: Now, lets do pair work. Make up similar dialogs. Go
25、ahead!T: Id like some pairs to act out your dialogs . Which pair ?T:.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” is used in Example 2.S2: There is a preposition “on” after “write”, but there is no preposit
26、ion after “lock”.Ss: Be made of. Ss: Be made of. .Make up similar dialogs in pairs.S1: Whats the computer desk made of ?S2: Its made of wood S1: Whats it used for?S2: Its used for putting computers on. 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
27、中，顺便解释：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。7 FinishingTask 3a(5mins)Individual work Individual workStep 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: Yes, but we call it a l
28、aptop. 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! 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 ta
29、ble in 3a.T: Now, lets check the answer one by one. First, laptop. What is it made of?T: Whats it used for?T:.Learn the new words, listen to 3a and number the pictures.Ss: Its a computer.Ss: Its a camera.Ss:.Listen to 3a again and fill in the table in 3a.答案 ES1:Its made of plastic.A组织凝血活酶大量入血 D单核吞噬细
30、胞系统功能抑制S2: Its used for .S3:.A 抗凝血酶-生成减少8D062元FinishingTask 3b答案 在DIC出现的溶血性贫血中， 外周血涂片中出现一些形态特殊的变形红细胞，其外形呈盔甲形、新月形、星形等，统称这些变形的红细胞为裂体细胞。(3mins)Pair workLet the Ss read the example in 3b, and then make up similar dialogs in pairs based on the information in the table in 3b.15() DIC患者外周血涂片中可见一些特殊的形态各异的红细
31、胞，称为裂体细胞，外形呈盔形、星形、新月形、三角形等，统称为红细胞碎片。由于该细胞碎片脆性高，极易破裂溶解，发生溶血。T: First, read the example in 3b, and then make up similar dialogs in pairs based on the information in the table in 3a. 理由：年末，工程能否提前完工尚不确定，所以在确认当年主营业务收入的时候在收入总额中不能包括该项承诺支付的奖励款60万元。T: Good news! I will have a photo with the first pair! Which
32、 pair will be the first one?贷：管理费用 85Read the example in 3b, and then make up similar dialogs in pairs based on the information in the table in 3b.【答案】：DS1: What is a cellphone made of ?S2:Its made of plastic and metal.借：以前年度损益调整 营业收入 600S1: Whats it used for?S2: Its used for making telephone calls
33、.S1:.S2:.9Summarizing and assigninghomework (4mins)Class activityStep 1: Let the Ss go over this section and sum up the key pointsT: We have only a few minutes left. Lets sum up the key points of this section.T: Lets begin with grammar.T: Whats the structure of it?T: And key points?Step 2:HMKT: Now,
34、 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 to use the past passive voice as much as possible. Sum up the key points.Ss: Passive voice in the past.Ss: Was / were + pp S1: Be made of , be
35、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:. Blackboard designWhen was it invented ?Section AWords and phrases: rock satellite spaceship metal lock laptop digitalbe made of come truebe used for doing sth.be made fromGrammar:the past passive voicestructure: was / were + ppSentences: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.