.wd.高一英语 陈花Unit 3 ComputersPeriod 1&2, Warming Up, Pre-reading, and ReadingTeaching 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 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 learn different reading skills.Teaching methods1. Task-based teaching and learning2. Cooperative learning3. Discussion Teaching procedures and ways Step1.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?Science and technology3. What does PC mean?Personal computer4. 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/ laptop7. What does W.W.W mean?World wide web8. What can computers be used to do 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 mathematical 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 computerStep2.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.Ex2)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. 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. Fill in the blanks with information from the reading text.TimeThe development of the computers16421822The 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 Machine 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 world together.Step4. Conclusion of the text How did computers develop? A calculating machine _ _ _ many new applicationsPeriod 3 Vocabulary and Useful ExpressionsLearning aimsGet the Ss to master some important words :common, solve, arise, signal and phrases: with the help of, as a result, in a way, deal withObjectives of process and methodCooperative learning and discussion and presentation Important and difficult pointLearn the usage of some important words: common, solve, arise, signal.Step1. Important words1. common adj.共同的；普通的；常见的have something/much in common 有一些/很多共同之处 have nothing/ little in common 没有共同之处1) They are friends, for they _.他们是好朋友，因为他们有很多共同之处。2) We _those bad students.我们和那些不好的学生毫无共同之处。arise vi.出现；发生；起身，起床 arise from 由引起1)作“呈现；出现；发生之意时，主语多为抽象名词argument/problem/question等Youhaveoneidea,theyhaveanother, andproblems_. 你有一个主意，他们也有一个，问题出现了。2) It cant be too careful while driving.Accidents often carelessness.开车时越仔细越好，事故往往是由疏忽大意而引起的3. signal vi.& vt.发信号；示意n.信号1) The police _ the driver to stop his car by raising his hand.警察举手示意司机停车。2) He signaled (to) her to keep away. 他示意她