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1、Unit 3 ComputersPeriod 1&2, Warming Up, Pre-reading, and Reading Teaching aims 1. Knowledge aims(1)Get the students to learn the useful and expressions in this part.(2)Let students to learn about history and basic knowledge of computers.1. Ability aimsDevelop students reading abilities and let them
2、learn different reading skills.3.Emotion aims :Arouse students great interest in learning computers and let them learn to use the computers in their daily lives.Teaching difficult and important points1.Let the students learn more about history and basic knowledge of computers.2.Get the students to l
3、earn different reading skills.Teaching methods1.Task-based teaching and learning2.Cooperative learning3.Discussion Teaching procedures and waysStep1.Warming up Task1: How much do you know about computers? (Make a survey) 1. What does IT mean? Information technology2. How to speak 科学技术 in English? Sc
4、ience and technology3. What does PC mean? Personal computer 4. How to speak 人工智能 in English? Artificial intelligence 5. What does PDA mean? Personal digital assistant 6.How to speak 笔记本电脑 in English? Notebook computer/ laptop 7. What does W.W.W mean? World wide web8. What can computers be used to do
5、 in our daily life?Task2: What is it?Give some sentences to describe different kinds of calculating objects and some pictures to help the students to guess what it is? An old calculating machine used in China until now.An abacus It is a new calculating machine which can solve a large number of mathe
6、matical problems.A calculator It is built to solve some mathematical problems. But it is too big. A huge computer It is a computer which can solve all kinds of problems and is used widely now .A PC / desktop It is a kind of computer which can be taken conveniently(方便).A laptop / notebook computerSte
7、p2.pre-reading Can you put these inventions in an order according to the time when they appeared?( ) Analytical machine（分析机）( ) Laptop( ) Calculating machine （计算机器）( ) Robotandroid( ) PC( ) Universal machine（通用机器）Step3. Reading (1)SkimmingTask 1. Find out the topic sentences of each paragraph (P19.E
8、x2)Task 2 .Summarize the general idea of this passage.(2)ScanningTask1. True or False1. In 1642 I began as a calculating machine and could solve any mathematical problem. (F: solve any calculating problem)2. My real father was Charles Babbage, who wrote a book and build me in 1936.(F: Alan Turning)3
9、. After I got my new transistors in the 1960s, I became smaller but cleverer and quicker.(T)4. I was brought into peoples homes in the 1970s.(T)5. Since my birth I have been built to take the place of human race.(F: build to serve human race) (3)Careful- readingTask 1: Look at the timeline below. Fi
10、ll in the blanks with information from the reading text.Time The development of the computers16421822 The Analytical Machine was made by Charles Babbage.1940sThe first family of computers was connected to each other. 1970snow1642: The computer began as a calculating machine1822: The Analytical Machi
11、ne was made by Charles Babbage.1936: The computer grew rapidly both in size and in brainpower.1940s: The computers had grown as large as a room.1960s: The first family of computers was connected to each other. 1970s: Computers were used in offices and homesNow: Computers connect people all over the
12、world together.Step4. Conclusion of the textHow did computers develop?A calculating machine _ _ _ many new applications Period 3 Vocabulary and Useful Expressions .common n. 1. an area of grassland with no fences which all people are free to use or a piece of open land for recreational use in an urb
13、an area (常用于专有名词中): Every Saturday Jean went riding on the village common. Harlow Common is very beautiful in winter.哈洛公园在冬天时风景很美。2. in common: in shared possession 3. out of common: unusual adj. 1. of or associated with the great masses of people: The common people in those days suffered greatly. 2
14、. to be expected; standard: common decency. 3. common to or shared by two or more parties: common friend. 4. of no special distinction or quality; widely known or commonly encountered; average or ordinary or usual: the common man. 5. belonging to or participated in by a community as a whole; public:
15、 for the common good. 6. commonly encountered: a common (or familiar) complaint. 7. being or characteristic of or appropriate to everyday language: common parlance. 8. lacking refinement or cultivation or taste: behavior that branded him as common. 9. of low or inferior quality or value: produced.the common cloths used by the poorer population. simple n. 1. any herbaceous plant having medicinal properties 2. a person lacking intelligence or common sense adj. 1. not elaborate in style; unornamented: a simple country schoolhouse. 2. (botany) of leaf shapes; of leaves having
