8A Chapter 4教案

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Chapter 4 Computer technology The 1st period

Teaching Aims: 1.Learn about computer 2.Train the students’ reading ability. 3.Master some new words about computer 4.Learn how to find the meanings. Teaching Important Point: 1.Improve the students’ reading ability. 2.Enable the students understand the text better. 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 technology Teaching Methods: Individual, pair or group work to make every student work in class. Teaching Aids: The multimedia and the blackboard Teaching Procedures Step1: warming up T: 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 write the names to complete the sentences. monitormain unitspeakermousekeyboard

micro-phone

floppy diskCD-ROM drive/ DVD-ROM drive

drive LOOK and THINK 1. 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-reading Let’s learn some technical words associated with computers: Pc: personal computer Laptop: small, portable personal computer Virus: something which gets into a program and damages it Data: information File: a collection of data stored together Network: a system that links two or more computers together Software: programs Hardware: the monitor, keyboard, drives, etc. Command: an order to the computer e-mail: electronic mail modem: a device which links the computer to the telephone system multimedia: a combination of sound, moving pictures and text step3: while-reading 1. look at the title of the passage and the pictures on the next page. Then 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 newspaper 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 computer cleverer than I am? 4. How do we give a computer instuctions? 5. What does a CD-ROM contain? 3.fast-reading answer 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 computer do? Computers are electronic brains. They can perform many functions, calculate and even control railway systems 3. 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 jobs 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 .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 our lives change? 4. Find the meanings Find 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. often 2. depend on a. need b. trust c. play with 3. realize a. allow b. understand c. decide 4. tiny a. allow. B. understand c. decide 5. essential a. very dangerous b. very safe c. very necessary 6. raise a. lift up b. put down c. bring to our attention 7. for the time being a. in the past b. at present c. in the future 5.Read and think People often expect you to give examples to explain something. Read the statements 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 computer. S2: For example? S1: ________ ____ _____. 4. S1: In future, computers may do some jobs better than people. S2: What job, for example? S1: A _________________________ job 6.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 where necessary. 1. hidden helpers a. there are many big ,hidden computers in everyone’s home.