人教版普通高中英语必修二Unit 3教案.doc

1、高一英语Unit3 computers教案Teaching plan forI. Teaching Goals:1. Talk about computers2. Describe things and how they work3. Give advice and make suggestions4. Use the Present Continuous Passive Voice.II. Teaching Time: Four periods.The First PeriodTeaching aims:1. Learn and master the following: solve, cr

2、eative, agree and worth2. Train and improve the students speaking ability .Teaching Important Points:1. Train the students listening and speaking abilities.2. Master the new words, and make the students learn to give and express their advice.Teaching Difficult Points:How to encourage the students to

3、 finish the task of listening and speaking.Teaching Methods:1. a tape-recorder 2. the blackboardTeaching Presentation:Step I. Greetings.Step II. Presentation.T: Boys and girls, please answer one question: Do you heard about “286”“386” “486” and “586”?Ss: Yes. They are computers.T: Which is the most

4、advanced computer in technology?Ss: “ 586”.T: Yes, you are right. From these numbers we can see the advance of Technology. If you want to make technology advance, you must have Creative ability and the ability to solve the problems. Now I want to see how creative you are and whether you can solve th

5、e following problems. Please turn to Page 57, Unit 9 Technology and look at the first part Warming up.Step III. Warming upNow I give you 2 minutes to consider how many uses for the following Items. ( Group 1: a toothpick Group 2: a sock Group 3: a plastic bag. Two minutes later, collect the Answers)

6、Suggested answers:1. A toothpick can be used to get bits of food out of the space between teeth;Can be used to eat small things; can be used to open a bottle2. A sock can be used to keep your feet warm and clean; can be used to make Gloves for little baby; can be used to fill some presents in onChri

7、stmas3. A plastic bag can be used to carry things; can be used to cover the seat of a Bike when it is raining; can be used as a glove when we pick Up sth oily or dirty; can be used to cover our hair when we Are dyeing it; can be used as a toyT: Well done. Now I give you 3 minutes to solve next probl

8、em: make as many Words as you can by moving any side as many steps as you wish.( After 3 minutes, you can collect the answer).Suggested answers: stop, side, soot, stem; star; coat, code, cram; door ; poem ;rate ; aide, atom etc.T: Now lets come to “True or false”. ( T, F, T)Step IV. Listening.Now pl

9、ease listen to the tape and guess what is being described. While listening try to finish the form on Page 57.Listen for the first time and write down the object described.Listen again and write down its possible uses.Listen for the third time to check the answer.Listening text:1. These are very simp

10、le. Two sticks, about 20 centimeters long. They are usually made of wood. You hold two sticks in one hand. You put one stick between two of your fingers, and you hold the other one with your thumb. These things can be difficult to use at first, but you will soon learn how to pick up even small piece

11、s of food.2. This thing is very popular and useful. Almost everyone has one these days.You can see people using this thing on the bus, when they are walking, or at Home. It is usually small , about the same size as your hand, and it comes in many colours. There are several buttons on it, some for nu

12、mbers, others for other things. It can be put in your pocket or in a small bag. With it, you can talk to people far away.3. This is a large box with a big door. If you open the door, a light comes on and you can see whats inside. Youd better not leave the door open for too long, because it is not go

13、od for the things inside. You might catch a cold, if you stand in front of the open door. There are several shelves inside, some in the box itself, some in the door. You usually find this large box in the kitchen.Answers to listening text.Object described Possible used 1. Chopsticks Eating, opening

14、a bottle,2. Cellphone Making phone calls, sending pictures, sending e-mail3. Refrigerator Keeping food fresh, keeping drinks coolStep V. Speaking.Lets look at the third part “Speaking”. Jane wants to buy a cellphone. Before she buys one, she asks her parents and her best friend what they think.Group

15、 1: you are Jane. You want to buy a cellphone. You think that a cellphone is very useful. Give your reasons; Group 2: you are Janes best friend. You do not think Jane should buy aCellphone . Give your reasons;Group 3: You are Janes mother. You do not think Jane should buy a cellphoneGive your reason

16、s;Group 4: You are Janes father. You think that Jane should buy a cellphone Give your reasons;( 2 minutes later, you can collect their answers )Possible answers: Jane1. I can use a cellphone to call myParents if I miss them or if I am Late.2. I can use it to call for help.3. I can use it to stay in

17、touch with My friends. Janes best friend1. We dont really need cellphones.2. We are not allowed to use cellphone in school.3. It is better to use the money for Something more important. Janes mother 1. cellphones are too expensive2. Jane should not spend too much Time on the phone.3. Jane is too you

18、ng to have a Cellphone. Janes father1. If Jane has a cellphone, I can always find out where she is.2. A cellphone will help Jane feel safe3. Jane can use a cellphone send messages to her friendslanguage points.1. solve vt. find an answer to a problem which is usually difficult to deal witha. He didn

19、t know how to solve the problem.b. At last they solved the problem with the teachers help.2. absolutely adv (1) completely, perfectly, wholly (2 ) Sure, certainlya. It is absolutely necessary. b. You agree? - Oh, absolutely.3. agree + prep phr vi + to do sth / that clause vt a. Do you agree with me?

20、 - Yes, I agree.b. We all agree with what you said.c. Do you agree to his plan? d. I agree to his proposal/ arrangements.e. The boy and the girl agreed on the date of the next meeting.f. They agreed on making a early start.g. He agreed to help me with my Chemistry. h. They agreed that we should buil

21、d a new library.4. worth u.n. price or value adj (1) deserving (2 ) equal in value to a. a jewel of great worth b. a person of great worthc. twenty dollars worth of sugar d. How much is the book worth? Its worth 80 yuan.e. This problem is worth notice.f. It is worth our work. g. We work hard but it

22、is worth it. h. Knowledge is worth working for . i. This problem is worth discussing carefully.j. Whatever is worth doing at all, is worth doing well.k. This problem is worth considering.Homework: 1. Preview the text .2. Recite the new words.Blackboard Design: Unit 9The First Period1. solve vt2. abs

23、olutely adv3. agree to do / that with/ on / to4. worth adj P.S. _ The 2-3 Period Reading Teaching Aims : 1. Train the students reading ability .2. Learn and master the following words , phrases and sentence structure: Throughout the world; more than; add to ; remind sb about ; no matter wh - ; dare

24、; In case of ; break down ; room ; come up with; Teaching Important Points :1. Learn and master the words , phrase and sentence patterns above 2. How to make the students understand the text better .Teaching Difficult Points: 1. Master the difference between the following phrases: No matter wh- / wh

25、-ever in case / in case of 2. How to Understand the texts completely .Teaching Methods:1. Fast reading to let the students get the general idea of the text .2. Question-and-answer activity to let the students get the detailed information in the text. 3. Making sentences to have the students master s

26、ome language points .Teaching Aids:1. a tape recorder 2. a blackboard Teaching Procedures: Step I . Greetings.Step II. Presentation T: As we know that life today is quite different from life in the past. Here is a example . (using a cellphone ) Look, whats this ?Ss: A cellphone.T: Have you ever used

27、 one ? Ss: Yes / No. T: Why are not the students allowed to use cellphones? Lets read the text “Life On the go” Step III. Reading Read the text quickly to get its general idea. Then answer the questions on the Bb. 1. Do schools agree to use phones in schools ? How about their parents ?( Some schools

28、 dont agree phones are used in school. Nor do their parents . They worry that their children will spend too much time and money on phone calls )2. What does Wang Mei thind is the most useful invention ?( She thinks the cell phone is the most useful invention .)Read the passage again to find out the

29、main idea of the paragraphs. Suggested answers:Par. 1: Wang Mei is an example of Chinese teenagers who have cell phones .Par. 2.: Cell phones can be used for many things.Par. 3 : Cell phones also cause problems .Par. 4 : There are several reasons why teenagers like cell phones .Par. 5 : Wang Mei exp

30、lain why she likes her cell phone and what she used itFor .T: Now you have known the general idea of passage and the main idea of each paragraph. Now read Paragraphs 2,3 and 4 to understand the details and fill in the blanks on Page 60. ( After some minutes, teacher asks three students to read the a

31、nswer.Suggested answers:For example: Cell phones are used as cameras, radios and electronic calendars, And to send e-mail, surf the Internet, play games and enjoy music.In school: disturb students and teachers.At home: spend too much money on phone calls.Reasons: 1. They need to stay in touch with f

32、riends and family.2. They can call for help in case of an emergency.3. They think the cell phone is a way to have fun and be cool.Step IV. Language points 1. “life on the go” 移动人生live a happy / hard / busy life on the go 是介词短语作定语后置， 意思是“忙个不停”；“四处奔走”；“跑来跑去”的意思。Her children keep her on the go all day.

33、 We cant keep small children still, they are always on the go . 介词 on 在这里表示“处于。情况之中” They are on a visit to China .Hes gone to HK on business. The go 可以表示“流行，时髦”常用于口语中。Hip hop has become quite the go among youngsters. Hula hoop seems to be coming back to the go at present. 2. throughout the world =

34、all over the worldall through the day = during the day / the whole day / all day long 3. more than （1）超过， 多于 （2）不只是，非常a. He has more than twenty yuan with him.b. By 1993, the number of the deer at the center had increased from 20 to more than 200.c. The travel to Beijing is more than sightseeing.d.

35、He is more than our teacher and he is our friend.e. Bamboo is used for more than building.f. Modern cellphones are more than just phones-they are being used as Cameras and radios, and to send e-mail or surf the Internet.g. He is more than happy.More.than 与其说。不如说。h. He is more like a spear than anyth

36、ing else.i. He is more diligent than clever.j. Tom is more frightened than hurt.No more than 并不比。更。，都一样不k. You are no more beautiful than I .l. The train ticket is no more cheaper than the plane ticket.m. Kate runs no faster than Jane.n. The book on travel is no more interesting than the book on foo

37、d.No more than 仅仅， 只不过a. He is no more than a little boy, and dont be angry with him.b. There are no more than 5 students left in the classroom.c. He knows no more than food in his world.Not more than不如。 not more than 至多，不超过o. This dictionary is not more useful than that one.p. In my pocket there is

38、 not more than 5 dollars.4. be used as / be used to do / be used for / be used by a. Computers shouldnt be used as a tool for playing games.b. Computers can be used to work out complicated mathematical problems.c. Pens are used for writing./ Wood can be used for making desks and chairs.d. This bed i

39、s used by my pet dog.5. add vt .（1）加；增加；添加 addto （2）补充说道add to vi. 增添；增加 add up to 总计达 a. He added some salt to the soup.b. Add 5 to 3 and you have 8.c. The fire is going out; will you add some wood to it?d. “You go first.” “Ill come later,” he added .e. The music added to our enjoyment.f. The light

40、s add to the beauty of our city.g. The expences add up to 95 yuan. 5. latest / lately / lated. Everyone likes to read the latest news.e. Mr. Smiths latest novel has been published.f. What have you been busy with lately? g. You are late again . Dont come late next time. 6. remind vt + sb of / about s

41、th +sb to do sth +that 表提醒+ sb of sth +sb of doing sth 表使。想起a. The Pictures reminded them of the days when they lived in the same Room.b. The story reminds me of my school days . / of having done wrong when I was Young.c. Please remind me to take medicine tomorrow morning.d. She reminded him that he

42、 had it before. / that they had met each other Before.7 dare mod. v / vta) He does not dare to take it home. = He darent take it home.b) Do you dare to ask him ? = Dare you ask him?8. no matter what 与 whatever a. No matter where you go, youll find new friends. = Wherever you go, youll find new frien

43、ds.b. Whatever he says, we cant believe him =No matter what he says, we cant believe him.c. Whatever he says isnt true. d. I will do whatever I can to help you.e. Give the book to whoever wants it.8. in case of+名词/ 短语（介）；假使， 要是。 的话； in case+从句 也可单独使用，置于句尾，意思是（1）要是。的话；万一。的话 (2) 以防， 免得a. In case of fi

44、re, ring the alarm bell.b. Having a cellphone also makes us feel safer, since we can call for help in case of an emergency. c. In case he comes here, tell him that I will go to meet him. d. Put on the coat, in case it snows . e. Please take an umbrella in case it rains.f. It may rain; youd better ta

45、ke an umbrella in case.（以防万一）In any case 不管怎样；In any case , parents shouldnt beat their children .In that case 既然这样/那样，用作状语In that case , you have to wait .in the case of 就。来说； 至于。In the case of computer, it is just so expensive. 10. I should be home in about ten minutes. （ 表示可能性或推测）He should have a

46、rrived there by now. 他现在应该到那了。11. I think its the most useful invention ever.（见第四点）(1) 用于肯定句中，比always 意味稍强。 永远；总是；一向He worked as hard as ever when he got a headache. The old woman repeated ever the same words. (2) 用于条件句/一般疑问句/否定句中，译成：曾经；在任何时候 Did you ever meet him while you were in London?Have you e

47、ver heard of him? If you ever see him, please give the pen to him.Nothing ever happened here. (3) 强调特殊疑问句中的疑问词，相当于on earth 究竟，到底Where ever did you see Mr. Read ?How ever did I forget it ?Who ever can it be? (4) 与比较级、最高级连用 译成：比以往任何时候Its the nicest thing ever. 这是空前的最好的东西。He is angrier than he has ever

48、 been .11. collect money for ./ raise money for 12. effect (c. u ) 效果； 作用； 影响a. It had such a bad effect upon him. b. The effects of the medicine were good to the patient. c. It may be the effect of the illness.Have an effect on 对。产生影响It had an immediate effect on his thinking. Take effect 生效；开始发生作用

49、The new law will not take effect until July.The medicine is going taking effect. Homework: 1. Recite the words in Unit 9.2. Finish the exercises on Page 135. Blackboard Design:Life on the go Language points:1. more than 2. remind 3. allow4. no matter what 5. in case of / in case .P.S. _ _ _ _ The Fo

50、urth PeriodTeaching Aims:1. Do some reading and get the general idea of a new paragraph.2. Do some writing.Main Points: 1. How to guess the meanings of the new words.2. How to train the students writhing ability.Difficult points:Improve the students integrating skills-reading skillTeaching Methods:A

51、sk and answer questions.Teaching aids:1. a blackboardTeaching procedures:Step I. Greetings.Step II. Revise the language points in the textOn the go ; add. to remind sb of/ about sth Stay in touch with ; in case of an emergencyStep III. Reading text.T: Nowadays computers are widely used in all kinds

52、of fields. With them, Many things become easier and faster. Can you imagine what will happen to our world in the future? ( Teacher collects the different answers from the students and says the following.) Today well read a passage about a robot named Q12. I think you are interested in it. Please tur

53、n to Page 62. While you are reading, you may find some words and phrases difficult to understand . Read the passage and find them out. ( After a while, teacher asks to say the difficult words and phrases and help them guess the meanings.)T: Now read the passage again and answer some questions.1. Wha

54、t is the earth ruled by in the year 2374?2. What happens to human beings by then? What about the world?3. What does the leader of the human beings decide to do with Q12?4. Can Q12 be defeated by force?5. What solution do the students come up with?Suggested answers:1. The earth is ruled by a great co

55、mputer named Q12 that used robots to make people work for it .2. Human beings have to do everything Q12 tells them to. The world is dark and dirty, and human beings have no room for happiness and fun.3. The leader of the human beings has decided to something to stop Q12 and Bring the machines and pe

56、ople back together.4. It cant be defeated by force. 5. The students come up with a peaceful solution. They will try to teach Q12 about love and friendship in order that they Language points1. take overa. He took over the phone and said to his wife at the other end “I love you .” 把。接过来b. The army too

57、k over the administration after the war. 接管c. The men from Red cross are coming to take over the refugee camps。接收d. One of the board of directors has resigned and Mr. Brown will possibly take over. 接任e. Nowadays various types of mouth covers take over . 盛行起来2. break down 失败； 损坏； 出毛病a. The plan broke

58、 down. b. The lift broke down yesterday . 3. wonder c.n 奇迹；奇观；奇才 u.n 惊奇； 惊叹vt. 想知道，极欲知道 vi 对。感到奇怪、惊异a. The Great Wall is one of the wonders of the world. b. He is a wonder. He could write when he was only one year old .c. I wonder what really happened. d. I wonder if she can come here this afternoon

59、. e. I was wondering about that. f. They looked at me in wonder.g. They were filled with wonder.h. There was a look of wonder in her face . No wonder 难怪；不足为奇i. No wonder you are often late .j. No wonder he loves you so. k. It is no wonder that so many people have been stricken by the West Lake . It

60、is so beautiful.4. defeat vt 战胜， 击败 vi 使失败，使落空n. 战败， 失败， 挫败 a. Our army defeated the enemy .b. Our class defeats Class Two at basketball .c. Their hopes were defeated. d. The first revolution ended in defeat.e. They would not admit this defeat. 5. force u. n vt 强迫， 迫使 a. She didnt use much force. 力量

61、b. The thief took the money from the young man by force. 暴力c. The navy is one of the armed forces .兵力d. I forced her to do it .e. We forced the enemy into surrendering . f. He was forced into the house .6. come up with 无被动语态（1） 赶上 （2）提出； 提供a. We shall have to work hard to come up with them .b. I hop

62、e ou can come up with a better plan than this c. You should come up with a response .Come up to 达到， 符合d. come up to standard e. The water come up to his waist.f. The concert did not come up to expectations .Come up （1）走近（2）上来， 上楼 （3） 长出，发芽 （4）发生 （5）提出、提及g. The seeds havent come up yet .h. Ill let yo

63、u know if anything comes up. i. Your question came up at the meeting. 7. take steps to do采取措施做某事 （在63页）The Chinese government has taken steps to protect the environment .8. dream of/ about doing （在课文中）Ive never dreamed of /about becoming a rich woman. Step IV. Homework (writing a letter to Q12)T: No

64、w you have known only when Q12 is taught about love and friendship, Will Q12 and human beings live together and will the world be beautiful again. Now you must write a letter to Q12 to tell it about love and friendship. Three tips have been given. Please discuss them in groups and finish this. Compo

65、sition in your homework. Blackboard Design Reading text (2)Language points:1. take over 2. break down 3. dream of 4. force 5. come up with .P. S. _ _ _ _ The Fifth Period Teaching Aims:Review the Present Continuous Passive Voice. Main and Difficult Points:1. Master the form and usage of the Present

66、Continuous Passive Voice.2. Master the question form of the Present Continuous Passive Voice and The negative form of the Present Continuous Passive Voice.3. How to use Present Continuous Passive Voice freely.Teaching Methods:1. Asking and answering 2. Practising Teaching Procedures:Step I. Greeting

67、s.Step II. Presentation for Grammar StudyT: Today well learn Grammar- the Present Continuous Passive Voice.Please turn to Page 59. In the text “ Life on the go” , there are a few sentences in which the present continuous passive voice is used. Now read Par. 2 and find them out .(teacher give student

68、s one minute to prepare it and asks them to read the sentences. Meanwhile, teacher writes them on the Bb. And underlines the verbs with coloured chalk. )T: The present continuous passive voice is “ be being + p. p” ( write them on the blackboard.) “ be” should agree with its subject in person and nu

69、mberStep III. Practice A. Exercises on Page 61.B. Checkpoint 9 on Page 63.C. Exercises 1 on Page 136D. If you have time, you can lead the students to read tips on Page 63.Homework. Finish all the exercises which are undone on the book.Blackboard Design. Grammar 1. words and images are being sent throughout the world .2. they are being used as cameras and radios. 3. New functions are being added to the phones. Form: be being done P. S. _ _ _ _