Learning about Language教学设计及说课稿

Unit 3 Computers Learning about language教学设计

Step 1 Preparation（发现准备阶段）

Review the text and discover the structure (Before class, let Ss enjoy some pictures about specially-designed computer) T: we learned “Who am I” yesterday. Now, I’d like you to make an interview with your partner. One is the reporter, and the other is Mr. / Miss Computer. These words may help you. 1. make, size 2. since then, communicate with 3. since my birth Write some key sentences on the blackboard: (1) As the years have gone by, the computer has been made smaller and smaller. (2) Since then, my family and I have been used by millions of people to deal with information and communicate with each other around the world by the Internet. (3) I have truly been built to serve the human race since my birth. Step 2 Presentation(呈现体验阶段) I. 初步体验

T: Nowadays, computer has been used more often than ever before by the students. Then, what has it been used in our life? Make the students try to express themselves freely. Help the students to describe the pictures, using the present perfect passive voice. S1: Computer has been used to chat with my friends. S2: Computer has been used to send E-mails to my friends. S3: Computer has been used to gather information. …….

T: I am glad to hear that computer has really been used by us. Students in class13 (14) have bought a new personal computer. We can also express our meaning: Ss: A new personal computer has been bought by them. T: Now, look, what about the computer used by the students in class13 (class14)? 1. They have found many problems with our computer. 2. They have just joined their computer to the Internet. 3. They have built a PC the way they want. 4. They have used the computer every day sine they bought it. 5. They have written a lot of e-mails on the computer in the past year. T: ask students change these sentences into the present perfect passive voice. S1. Many problems with their computer have been found by them. S2. Their computer has just been joined to the Internet. ……

II. Together with the students，the teacher summarizes the use of the structure. 教师点拨语法特点并提醒重难点：一. 被动语态的形式是be done, 二. 现在完成时经常与Since, for, yet, already, so far, by now, in the past few years, how long等词连用，三. 助动词的选择have/has 要与主语一致。

III. Fill in the blanks, using correct tense and voice: 1．I don’t know how many days I have been given (give) to spend, but I do feel my hands are empty. 我不知道他们给了我多少日子，但我的手确乎是渐渐空虚了。－《匆匆》

2. Never mention rope in the house of a man who has been hanged. (hang)不揭别人的短处。

3. The year that is drawing towards its close, has been filled (fill) with the blessings of fruitful fields and healthful skies. 4. Peace has been preserved (preserve:维护)with all nations, order has been maintained, (maintain:维持)the laws have been respected (respect) and obeyed, and harmony has prevailed (流行，盛行

)everywhere. Step 3 Practice I. Game: Task: Describe what has happened in the pictures Requirements: 1. Use “ have / has been done”;

2. Four groups are divided, and every group chooses one picture. The group which gives the most sentences will win. Because time is limited, the most sentences are six. 3. “One person, one chance”---Everyone has just one chance. II. Choose the best answer: 1. Both my brother work at the power station that ___ in my hometown. A. has set up B. has been set up C. was set up D. is set up 2. ---_____ the sports meet will be put off. A. I’ve been told B. I’ve told C. I’m told D. I told 3. All the preparation for the task ____, and we’re ready to start.

A. completed B. complete C. had been completed D. have been done 4. ---- How long ____ at this job? ---- Since 1990. A. were you employed B. have you been employed C. had you been employed D. will you be employed 5. When and where to go for the on-salary holiday ____ yet. A. are not decided B. have not been decided C. is not being decided D. has not been decided III. Correct mistakes in the blog: T: We have learned “wildlife protection” in Unit2. An article is posted in our blog, but there are some mistakes. Please correct them. Step4 Production (应用阶段) T: I think something must be done to save dolphins. Besides, some problems about computer have arisen. Do you know any problems? S1. Many of the students have been attracted by computer games, which have a great effect on their studies. S2: A lot of diseases have been caused because of the computer. We spend too much time on computer. S3: Some deadly computer programmers, like “worm” have been invented to make the computers turn off, which has caused great headaches for the computer users. …….

T: Great! Now, I’d like to give you a task.

Task: choose one topic above to write an article on the problems caused by the computer in our

blog. If you’d like, leave some messages..

Requirements: 1. Use at least four sentences with “the present perfect passive voice”.

2. Apply at least four new words and expressions we have learnt in this unit. Group work: Each group has around four members. The group leader is supposed to collect each member’s ideas and prepare it well. Each member should have his own idea and is always ready to improve the passage. Evaluation: 1. The group that organizes the article well and gives some information (what happened, reasons, etc) wins. 2. The group that uses the learned words or phrases and the present perfect passive voice will get a high score. Homework: Write the article down on your own and improve it. The requirements should be strictly followed.