（精心整理）8A Chapter 4教案

1、Chapter 4 Computer technologyThe 1st periodTeaching Aims:1.Learn about computer2.Train the students reading ability.3.Master some new words about computer4.Learn how to find the meanings. Teaching Important Point:1.Improve the students reading ability.2.Enable the students understand the text better

2、.3.Develop the students creative, comprehensive and consolidating abilities.Teaching Difficult Point:1.How to improve the students reading ability. 2. How much do you know about computer technologyTeaching Methods:Individual, pair or group work to make every student work in class.Teaching Aids:The m

3、ultimedia and the blackboardTeaching ProceduresStep1: warming upT: ask some students to answer , what is this? Which kind of electric machine does teacher use teach us in the class?S: Computer.T: what do you know about computer?Before you read about computers, look at the pictures below and try to w

4、rite the names to complete the sentences.LOOK and THINK1. The shows words and pictures.2. We use the for typing in information.3. The stores information.4. The helps us control the computer . 5. We can hear sound from the 6. We put the or into the .Step2: pre-readingLets learn some technical words a

5、ssociated with computers:Pc: personal computerLaptop: small, portable personal computerVirus: something which gets into a program and damages itData: informationFile: a collection of data stored togetherNetwork: a system that links two or more computers togetherSoftware: programsHardware: the monito

6、r, keyboard, drives, etc.Command: an order to the computere-mail: electronic mailmodem: a device which links the computer to the telephone systemmultimedia: a combination of sound, moving pictures and textstep3: while-reading 1. look at the title of the passage and the pictures on the next page. The

7、n discuss the following statements with a partner and correct mistakes.Computers 1. are inside many machines in our homes.2. can do unimportant jobs like flying planes.3. are already cleverer than people.2. reading passage( computers) These are three short texts typical of information leaflets or ne

8、wspaper or magazine articles, discussing different aspects of computers in the modern world.All right! Turn to page 46. Look at the passage and think about some questions:1. What does Tony plan to do about computers?2. What are probably the best calculators in the world at the moment?3. Is a compute

9、r cleverer than I am?4. How do we give a computer instuctions?5. What does a CD-ROM contain?3.fast-readinganswer some questions about passage.1. Hidden helpers: The use of computers has spread very quickly. There are small computers inside everyday appliances in your home.2. What kind of jobs can a

10、computer do?Computers are electronic brains. They can perform many functions, calculate andeven control railway systems3. Is a computer cleverer than I am?At present, the human brain is superior to the computer, as it has greater understanding, but this may change. If computers can do some of our jo

11、bs better than we can, how will our lives change?: : What is the main idea of the three short passage?Hidden helpers: the use of computers has spread very quickly .there are small computers inside everyday appliances in your home.What kind of jobs can a computer do? Computers are electronic brains .

12、they can perform many functions, calculate and even control railway systems. Is a computer cleverer than I am? At present ,the human brain is superior to the computer ,as it has greater ability to understand ,but this may change .if computers learn to do some of our jobs better than we can, how will

13、 our lives change?4. Find the meaningsFind these words and expressions in the passage. Then read the words round them and choose the best meanings.1. hardly ever a. sometimes b. seldom c. often2. depend on a. need b. trust c. play with3. realizea. allow b. understand c. decide4. tiny a. allow. B. un

14、derstand c. decide5. essential a. very dangerous b. very safe c. very necessary6. raise a. lift up b. put down c. bring to our attention7. for the time beinga. in the past b. at present c. in the future5.Read and thinkPeople often expect you to give examples to explain something. Read the statements

15、 below and on page 47 and give examples. Put one word in each blank.1. S1: Computers can do some important jobs.S2: For example?S1: _ _, _ _ and _ _.2.S1: There may be tiny computers in your home. S2: Where, for example? S1: Inside your _ _, _ or 3. S1: A human brain can do some things better than a

16、 computer. S2: For example? S1: _ _ _.4. S1: In future, computers may do some jobs better than people. S2: What job, for example? S1: A _ job6.find the facts Tony made some notes about the articles on the page 45,but some of the facts in them are wrong .read the articles again and correct his notes

17、where necessary.1. hidden helpersa. there are many big ,hidden computers in everyones home.b. People are less dependent on computers than they realize.2. what kind of jobs can a computer do?a. computers sometimes give wrong answers at calculating.b. Computers can teach people many things and also pl

18、ay games with them.3. is a computer cleverer than I am?a. computers cannot create new ideas for the time being.b. computers are better at doing their jobs than doctors ,judges and teachers at present.Step4: afterreading (discussion)What do you learn from the passage? The 2nd periodTeaching Aims:1. L

19、earn about computer2. Train the students reading ability.3. Master some new words about computer4. Learn how to find the meanings. Teaching Important Point:1. Improve the students reading ability.2. Enable the students to understand the text better.3. Develop the students creative, comprehensive and

20、 consolidating abilities.Teaching Difficult Point:1.How to improve the students reading ability. 2. How much do you know about computerTeaching Methods:Individual, pair or group work to make every student work in class.Teaching Aids:The multimedia and the blackboardTeaching Procedures:Step1: review

21、new wordsFind the words in Column A in the passage and then read the words round them. Match them with the meanings in Column B.1.be unaware of a track with rails on it2. hidden senior law officers3. type difficult to see or find4. railway write something with a computer , typewriter, etc. 5. judges

22、 do not know aboutStep2: DiscussionWhats the use of computer?Step3: pairwork ,groupwork Read the article about the history of the internet, work in groups and discuss the advantages and disadvantages of the internet. Talking the topic about is the internet a good or bad thing?Step4: words study1.har

23、dly ever a. sometimes b. seldom c. often2. depend on a. need b. trust c. play with3. realize a. allow b. understand c. decide4. rarely a. often b. sometimes c. seldom5. essential a. very dangerous b. very safe c. very necessary6. containa. prevent b. remove c. includeStep 4 Consolidation and homewor

24、k1. Review what we learnt today.1. Read the text.2. Copy down the new wordsThe 3rd periodTeaching Aims:1. Learn about top office supplies2. Train the students listening ability.3. Master some new words about ordering products4. Learn how to find the meanings. Teaching Important Point:1. Improve the

25、students listening ability.2. Enable the students to understand the text better.3. Develop the students creative, comprehensive and consolidating abilities.Teaching Difficult Point:1. How to improve the students listening ability. 2. Describe how to describe the products.Teaching Methods:Individual,

26、 pair or group work to make every student work in class.Teaching Aids:The multimedia and the blackboardTeaching Procedures:Step 1 Listening: filling in an order formMabel Wang is ordering some office products for her company. You are the man from Top Office SuppliesStep2: Listen to the recording, an

27、d complete the details of Mabels order on the form below. The words and pictures may help you. After you finish, work out the grand totalStep3: Top office supplies Company name: Customer name: Customer No:The 4rd perioTeaching Aims:1. Learn about grammar2. Train the students the comparative of adjec

28、tives ability.3. Master some new words about the comparative of adjectives4. Learn how to find the meanings. Teaching Important Point:1. Develop the students creative, comprehensive and consolidating abilities.Teaching Difficult Point:1. Describe how to describe the different objects.Teaching Method

29、s:Individual, pair or group work to make every student work in class.Teaching Aids:The multimedia and the blackboardTeaching Procedures:The comparative and superlative of adjectives英語中有時需要對兩者或多者進行比較，這時就需要用形容詞的比較等級。比較等級分為： 原級: cheap expensive 比較級: cheaper more expensive 最高級: cheapest the most expensi

30、ve寫出下列形容詞的比較級和最高級：cheap small old high nice safe happy heavy early easy big wet important difficult angry famous interesting excited good ill far littleFill in the blanks with the proper forms of the words given.1. My sister is _ than Richard. (old)2. He has _ homework to do than I do today. (much)3

31、. Is football _ than volleyball? (exciting)4. The town is _ than it used to be. (clean)5. Im _ than his brother, Jim. (clever)6. I think she looks _ than in the photo. (pretty)7. This road is _ than the other one. (dangerous)8. This problem is _ than I thought. (important)9. Can you walk _ than a yo

32、ung man? (far)10. In summer it is much _ in Wuhan than in Beijing. (hot)11. Which is _, Room 201 or Room 108? (bright)12. Tom is _ boy in our class. (old13. This is _ city that we have ever visited. (good)14. It was the _ day of his life. (bad)15. Susans flowers are _ of all. (beautiful)16. Sue is _

33、 of the girls in the class. (clever)17. Winter is _ than autumn; it is _of the four seasons. (cold)18. We watched a very _ play the day before yesterday. (bore)19. Pants cost _ than shorts. Shorts dont cost as _ as pants. (much)20. The girl seems _ today than yesterday. The girl didnt seem so _ yest

34、erday as today. (lively)A The comparative of adjectives A2Work in pairs to do this quiz. S1 asks the questions. S2 uses the information in the box to answer the questionsthe Nile 6,700 kmthe Amazon 6,300 kmAfrica 30,233,000 sq km Asia 44,426,000 sq kmGreenland 2,715,592 sq kmBorneo 746,543 sq kmthe

35、Atlantic 9,219 mthe Pacific 11,035 m1.S1: (river / long) _, the Nile or the Amazon? S2: _.2. S1: (continent / big) _ _, Africa or Asia? S2: _.3. S1: (island / large) _, Greenland or Borneo? S2: _.4. S1: (ocean / deep) _, the Atlantic or the Pacific? S2: _.A3Make sentences using the adjectives in the

36、 box.shallow short small1.The Amazon _.2. Africa _.3. Borneo _.4. The Atlantic The 5th periodTeaching Aims:1. Learn about computers2. Train the students speaking ability.3. Master some new words about computers4. Learn how to find the meanings. Teaching Important Point:1. Improve the students speaki

37、ng ability.2. Enable the students to understand the text better.3. Develop the students creative, comprehensive and consolidating abilities.Teaching Difficult Point:1. How to improve the students speaking ability. 2. Describe how to give opinionsTeaching Methods:Individual, pair or group work to mak

38、e every student work in class.Teaching Aids:The multimedia and the blackboardTeaching Procedures:Step 1 Talk time1. Listen to the tape2. Read after the tape3. Read togetherStep 2 Speak upI. Give opinion ,agreeing and disagreeing? Work in groups of 52. S1 is Tony The other student is Joyce .they are

39、talking about food.A2 Answer these questions about the conversation in complete sentences.1.What is Tonys opinion about Cantonese food?2. What does Joyce think of Sichuan food?3. Does Joyce agree that Cantonese food is hotter than Sichuan food?4. Does Tony agree that Cantonese food tastes better tha

40、n Sichuan food?Useful expressions: In my opinion, It is very important becauseDo you ever use .to ? How do you .? Do you have ? Is there ?Would you like .? Do you enjoy?II. Possible answer:S1: I think Liu Huans voice is louder than Cheng Longs.S2: I dont agree. In my opinion, Cheng Longs voice is louder.S1: But Cheng Longs voice is rougher.S2: I agree. Thats why I like it.Possible questions