新課標高一必修2 Unit 3 Computer—教案4

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人教版新課標高一必修2 Unit 3 Computer—教案4

人教版新課標高一必修2 Unit 3 Computer—教案4 Unit 3 Computer鈥斀貪4 TITLE=人教版新課標高一必修2 Unit 3 The 3rd period: learning about Language ---the Present Perfect Passive Voice Goals: 1. Learn the Present Perfect Passive Voice. 2. Help the students master the way of using the correct voice, telling the differences between the active voice and the passive voice. Teaching Procedures: Step 1: Revision and lead-in 1. Check the homework first Ex1: 1 totally 　2 revolution 　3 artificial intelligence 4 birth　 5 simple-minded 6 go by 7 deal with 8 network 　9 truly 10 anyway Ex2: revolution; network; went by; totally; truly; simple-minded; Anyway; deal with Ex3: 1 totally 2 amazed 3 exciting 4 excited 5 cheaply 6 unlucky 2. Lead-in Say: Are you familiar with these computers? Can you call them? (ask the Ss to distinguish different types of computers.) Do you know these new inventions of computer ? A wrist-worn PChas been invented recently. A pen-like computer has already been developed. (show them some pictures and ask them to make some sentences , using the Present Perfect Passive Voice.) Eg: It’s rather a hot day today! Would you like to have a swim after school ? Have you ever swum in the Blue Water World（藍色水世界） in the Oriental Suntown (東方太陽城) which has been set up in Taizhou? There a beautiful swimming pool has been built . Many high buildings have been set up. Lots of flowers and trees have been planted. A new bridge has been completed…. Step2: Discovering Ask the Ss to discover whether these sentences have something in common.. Help them to learn the useful structure : the Present Perfect Passive Voice. Step3: Discussion : learning the structure Give some explanations 1構成：主動語態(tài) 被動語態(tài) 現(xiàn)在完成時 have/has done----------àhave/has been done He has been sent to study the new technology in the company. The dirty clothes have not been washed. Have the windows been cleaned? How many shopping centers have been built in this city? 2. 只有及物動詞才有被動語態(tài)，不及物動詞（詞組）沒有被動語態(tài), 如:happen, take place, die, appear, disappear, fail, remain, lie, last, sit ,stand, break out, come true, belong to等．如： What has happened to your brother? 3．但許多不及物動詞加介詞或副詞構成的短語動詞，相當于及物動詞，也可以有被動語態(tài)。但短語動詞是一個不可分割的整體，變?yōu)楸粍诱Z態(tài)時，不可丟掉構成短語的介詞或副詞。如： The child has been taken good care of by Grandma Wang all these years. A notice has been put up on the wall Step4: Practice and exercises 1.Change the following sentences into the Present Perfect Passive Voice. !). We have completed all the preparations for the task, and we’re ready to start. 2). This company has producednew types of computers. 3). They have interviewed several teachers for the job. 4). George has sent some texts and pictures to his friend’s cellphone. 5). They have developed some programmes for the human resource department of their company. 2.Change the following sentences into the Present Perfect Passive Voice. Put the verbs into correct form. Recently we have bought a new personal computer. We have used the computer every day since we bought it. We have just joined our computer to the Internet. However, we have found many problems with it. So we have decided to ask a professional man to fix it.Soon he has fixed the computer. He has built a PC way we wanted . How excited we are! These days we have written a lot of E-mails on the computer. We have decided to write a report about the positive and the negative effects of using computers. 3. Do some exercises: choice Step5: Using the structure : Play a game—What has been decided. 1. Give The Ss the situation : Get into groups of four. Your task is to decide what has been decided for the class .Take turns to make the ideas as interesting or as lively as you can. 2. Give the Ss some examples: S1: It has been decided that those who do not do heir homework will be asked to return to school on Saturday. S2:It has been decided that those who keep the classroom tidy should be allowed to go home early everyday. S3:It has been decided … S4:… 3. Ask them to collect the ones they all like best and be prepared to tell them to the class. Step6: Further Study:高考鏈接(This step can be done according to teaching needs.) 1. ---How long _____ at this job?B --- Since 1990. A. were you employedB. have you been employed C. had you been employed D. will you be employed 2. When and where to go for the on-salary holiday ___yet. (2003 上海春季) D A. are not decided B. have not been decided C. is not being decided D. has not been decided 3．All the preparations for the task ___, and we are ready to start. (2000 北京春季) D Step 7: Homework 1.Finish Exercise 1 on P57. 2.Revise the Present Perfect Passive Voice.

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新課標高一必修2 Unit 3 Computer—教案4