Learning about Language优秀公开课教案

Unit 3 Computers Period I. Reading Who Am I ? I.

II.

Date: Dec.16th,2009 Teaching goals: 1.

Knowledge goals:

(1)Let the students grasp the progress of computers. (2)Learn to summarize the main idea of the passage. 2. Ability goals: (1)Enable the students to talk about computers in English and express or support and opinion with suitable expressions. (2)Train their reading skills. 3. Emotional goals: Inspire the students’

interest in computers and their application. III. Teaching important points: Try to finish the comprehending tasks. IV. Teaching difficult points: Enable the students to leanrn how to grasp the structure of the text. V. Teaching methods:学做导合一

a. Cooperative learning b. Task-based method c. Teacher’s guiding VI. Teaching procedures and ways:

Step1. Duty report （根据各班实际情况开展）

Step2. Lead-in

Show a picture on the screen, which is about a man working with a computer. T: Before we learn the new unit, let’s look at the picture and please tell me what the man is doing? Ss:…

T: Right, he is under work with a computer. As we know, computers really play an important role in our work, study as well as our daily life. Now, let’s get close to computers. Please turn to P17.( 板书：Unit3 Computers.) Step3. Warming up.(10’) T: Let’s discuss Q1 of warming up on P17 at first, then talk about the pictures with teacher’s help.) Q1: In pairs discuss what they have in common. S: They all calculate something. (参考资料) An abacus: an old calculating machine used in China until now. A calculator: a modern calculating machine which can solve a large number of mathematical problems. A huge computer is big and built to solve the mathematical problems. A PC: A personal computer which can solve all kinds of problems and is

used widely now. A laptop: is a kind of computer which can be taken conveniently. A PDA: is a kind of mini computer. A robot: is a machine that can move and do some of the work as a person. Step4. Pre-reading. (P17, Ex3) Look at these inventions. Can you put them in an order according to the time when they appeared? After reading the passage, check to see if you were right. (可作Listening 或

Group Discussion) (2) analytical machine

(5) laptop (1) calculating machine

(6) robot (4) PC

(3) universal machine T: Good job! Let’s begin to do the reading Who Am I? (题目板书) Step5.Reading

(注：阅读任务的次序可按实际情况进行调整) Task1. Scanning (Text book P19, Ex2) Read the passage and complete the chart below.

Topic sentence Paragraph 1 Paragraph 2 Paragraph 3 Since the 1970s new Over time I have These been changed quite changes only many a lot. became possible applications have as been found for me. my memory

improved. Supporting .calculating details

machine .tubes .transistors .communications .finance .trade .robots .analytical machine .chips .universal machine .PC .laptop Task2 Summary .network .World Wide .mobile phones

Web .space rockets Ask the Ss to summarize the main idea of the passage in about 30 words according to Task1) The passage mainly tells us the history and development of computers and their applications. Task3. Reading Comprehending./ Skimming (7’) 《三维设计》P36 (Play the tape and then let Ss finish the exercises below) 1. When did the computer come into being? (B) A. In 1640

B. In 1642

C. In 1822

D. In 1936 2. Who really invented the computer? ( C ) A. Charles Babbage

B. Bill Gates C. Alan Turing D. Thomas Edison 3. When did computers come into the common family? ( C) A. In the 1950s

B. In the 1960s

C. In the 1970s

D. In the 1980s 4. Which of the following statements is true? ( C ) A. Charles Babbage built an Analytical Machine in 1642.

B. A “Universal machine”

was built to solve any mathematical problem in 1936. C. The computers were connected by a network in the early 1960s. D. In the 1960s people couldn’t talk to computers using BASIC. 5. What can we infer from the text? ( D ) A. A computer can take the place of human beings to do any work in the future. B. The smaller a computer is , the faster it calculates. C. Computers can solve all the problems of human beings. D. People can benefit more from computers in the future. Step6. Homework. 1.

Underline the important sentences and words of the passage. 2.

Fill in the passage with the suitable words. 《三维设计》P37 VII.

课堂反思

VII．板书设计

Unit3.Computers Common:

abacus

Main idea: calculate something

calculator

The passage mainly tells

computer

us the history and development

PC

of computers and their applications

laptop

PDA

robots