Learning about Language课堂实录及点评

Unit 3 Computers Period One Warming up and reading 胡 悰

1. Ability goals

Enable students to learn about the development and history of computers.

2. Learning ability goals

By finishing the timeline and the chart, help students grasp the basic structure

and main idea of the passage.

3. Teaching important and difficult points Understand how details are used to support topic sentences.

4. Teaching methods

Prediction, scanning and discussion.

5. Teaching aids ：PPT、Blackboard 6. Teaching procedures & ways：

Step one Warming up i. Read the new words of this unit. ii. Show an advertisement of computer. iii. List some devices of computer and let the students guess their names. iv. Task: How to make up a computer v. Cooperative learning: Show some pictures of the development of computers.

Step two Reading Task 1: Skim the passage and fill the time table on page 19. (It’s mainly talking about the history and development of computers.)

Task 2: Scan and find out the topic sentence of each paragraph. Step three A game

Task: Show some abbreviations of the keyboard and let the students guess their full names and the usage of them. (The students will be divided into 3 groups. When a group gets the meaning of a abbreviation, they can get one point.) Step four Exercise The exercise is in the second edition of English Weekly

Who am I? Over time I have been changed quite a lot. I began as a calculating machine in France in 1642.Although I was young I could simplify difficult sums. I developed very slowly and it took nearly two hundred years before I was built as an analytical machine by Charles Babbage. After I was programmed by an operator who used cards with holes, I could "think" logically and produce an answer quicker than any person. At that time it was considered a technological revolution and the start of my " artificial intelligence". In 1936 my real father, Alan Turing, wrote a book about how I could be made to work as a " universal machine " to solve any difficult mathematical problem. From then on, I grew rapidly both in size and in brainpower. By the 1940s I had grown as large as a room, and I wondered if I would grow any larger. However, this reality also worried my designers. As time went by, I was made smaller. First as a PC (personal computer) and then as a laptop. I have been used in offices and homes since the 1970s. These changes only became possible as my memory improved. First it was stored in tubes, then on transistors and later on very small chips. As a result I totally changed my shape. As I have grown older I have also grown smaller. Over time my memory has developed so much that, like an elephant, J never forget anything I have been told! And my memory became so large that even I couldn't believe it! But I was always so lonely standing there by myself, until in early 1960s they gave me a family connected by a network, I was able to share my knowledge with others through the World Wide Web. Since the 1970s many new applications have been found for me. I have become very important in communication, finance and trade. I have also been put into robots and used to make mobile phones as well as help with medical operations. I have even been put into space rockets and sent to explore the Moon and Mars. Anyhow, my goal is to provide humans with a life of high quality. I am now truly filled with happiness that I am a devoted friend and helper of the human race!