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1、 必修2第三单元computers教学设计 教材分析本单元以computers为话题，让学生了解计算机和信息技术产生和发展过程，激发学生对信息技术的兴趣。本节将Warming up，Pre-reading和Reading整合设计。从电脑图片导入单元题目，让学生说出电脑各部位名称。从三个猜谜活动进行头脑风暴，全面进入热身。Pre-reading中让学生根据文章题目进行内容预测，激发学生获取知识的欲望。 Reading中以别致的标题WHO AM I?引起学生的好奇心，使学生迫不急待地阅读这篇文章，并判断出“I”是computer，对文章的内容印象更深刻。文章以第一人称的形式按时间先后顺序讲述了co
2、mputers的产生、发展和现状，并用拟人化的口吻表达了computers乐于为人类服务的精神。Teaching Aims 1.Knowledge aims 1.Learn some useful words and expressions.2.Learn the development of computers.2.Ability aims 1.Train the students reading ability.2.Learn how to use some important words and phrases in this passage.3.Emotion aims To have
3、 a good habit of using computersTeaching important points 1.Improve reading ability and understand the passage better.2.Learn how to use some important words and phrases in this passage.Teaching procedures. Leading-in Task1. Ask and answer:1.Do you like playing computers? How long do you spend on it
4、 each day? _ hours .2.Can you name the parts of a computer ? 【预习检测】123456.Warming up (Brainstorming:) Task 1. Guessing 1. An old calculating machine used in China until now.2. It is a new calculating machine which can solve a large number of mathematical problems.3. It is a personal computer which c
5、an solve all kinds of problems and is used widely now.Task 2. Discussion: 【Group activitiy】What do they have in common?. Pre-reading Task 1 Discussion. How have computers changed our lives? 【Group activitiy】(What can we use computers to do in our daily life?)Task 2.Predicating: Who is the speaker in
6、 the story ?IV. While reading Skimming:Task 1.Skim the paragraphs and find out the sentences to support your predication .Task 2.Skim the passage and find out the main idea of the text. This is a short _ of the _of computers .Scanning: Task. Listen to the tape and find the following sentences True (
7、T) or False (F),then tell the reasons.1.In 1642 I began as a calculating machine and could solve any mathematical problem. ( )2. My real father was Charles Babbage, who wrote a book and built me in 1936. ( )3.After I got my new transistors in the 1960s, I became smaller but cleverer and quicker . (
8、)4.I was brought into peoples homes in the 1970s. ( )5. Since my birth I have been built to take the place of human race. ( )V. Post-reading Comprehension:【小组探究】Task1: Read the text again and find the development of the computer by the picture.nowIn 1642 In 1882In 1936 in the 1960sin the 1970s a _he
9、lperbegan as a _machine connected by a networkas a _computeran_machine was built Task 2: Fill in the blanks with the words in the text. (one word for each blank.)1. Although I was young I could _ difficult sums.2. After I was programmed by an _ who used cards with me.3. At that time it was considere
10、d a technological revolution and the start of my “ artificial _”.4. However , this _ also worried my designers.5. As a result I _ changed my shape.6. Over time my memory became _ much _,like an elephant ,I never forget anything I have been told!VI. Summary Task . What have we learned in this period?
11、1. some useful phrases 2. the d_ of a computer 3. some reading skills s_ , s_ VII. Assessment 1.Translation【基础巩固】自我检测calculating machine _Analytical machine _card with holes _ technological revolution _ universal machine _artificial intelligence _ go by _ by internet _ human race _2. 用括号内所给词的适当形式填空。
12、【拓展提高】自我提升1. Try to _(simple) your explanation for the students to help them understand better.2. If you want to know about the hotel, you can call the _ (operate) to find out the information.3. The boy is very clever and he shows high _(intelligent) in study.4. _ (real) is not the way you wish thin
13、gs to be but the way they actually are.5. Bob is _ (total) different from his father, who is very tall.3. 每空填一词，使该句与所给句子的意思相同。【能力提升】自我超越1. Since that day, we have become very good friends._ that day _, we have become very good friends. 2.She has changed her character completely.She has _ changed her
14、 character.3. Because the flood is so serious, two thirds of the buildings in the area need repairing.The flood is so serious. _ _ _, two thirds of the buildings in the area need repairing.4. She is too upset to calm herself down.She is _ upset _ she cant calm herself down.4. 根据括号内所给的提示将下列句子翻译成英语。【综合运用】 情感教育1. 从那时起他就沉迷于电脑游戏。 （from . on） _.7. 结果，他没有通过考试。（as a result）_
