Using LanguageⅡ教学设计第一课时

Book 8

Unit 3 Inventors and inventions Teaching goals教学目标

1.Target language 目标语言

a. 重点词汇和短语

forehead, dynamic, dot, tap, wire, straw, current, importance, helicopter, triangle, stable, practical, beaten track, dive into, set out (to do), in truth, be associated with, practical

b. 重点句子 He found that by pressing his lips against his mother’s forehead, he could make his mother understand what he was saying. Every time you do you will be certain to find something that you have never seen before. It was this exploring around problems and his dynamic spirit that led to his most famous invention -- the telephone in 1876. Bell never set out to invent the telephone and what he was trying to design was a multiple telegraph. He designed a machine that would separate different sound waves and allow different conversations to be held at the same time.

The day is coming when telegraph wires will be laid on to houses just like water or gas--and friends will talk to each other without leaving home. Although he is most often associated with the invention of the telephone, he was indeed a continuing searcher after practical solutions to improve the quality of everybody’s life. 2. Ability goals能力目标

Enable the students to learn about the famous inventor Alexander Graham Bell and his inventions. 3. Learning ability goals学能目标

Help the students learn how the famous inventor Alexander Graham Bell invented telephones.

Teaching important points 教学重点

How the famous inventor Alexander Graham Bell invented telephones.

Teaching difficult points教学难点

Help the students learn what the key is to become a successful inventor.

Teaching methods 教学方法

Listening and fast reading.

Teaching aids 教具准备

A recorder, a projector and a computer. Teaching procedures & ways 教学过程与方式

Step Ⅰ Revision and lead-in Check homework: Get the students to put the following sentences into English.

Show the following.

1. 一阵闪电之后，接着就是一声巨响。

2. 被汽车撞伤的小孩马上被送到了医院。

3. 本书是用浅显的英语写的，适合初学者。

4. 那位手持鲜花的姑娘也许在等那个被警方带走的男人。

Sample answers: 1. There was a sudden burst of lightning followed by a terrible noise. 2. The boy hurt by the car was sent to the hospital immediately.

3. This book, written in simple English, is suitable for beginners. 4. The flower-carrying girl may be waiting for the man taken away by the police. Ask the students “Do you know who invented the telephone?”

S: Yes, a British inventor called Alexander Graham Bell.

T: Good. Everyone knows what an amazing invention telephone is! When we make telephone calls every day, we shouldn’t forget the great inventor Alexander Graham Bell. Today, we’ll learn something more about him.

Step Ⅱ Pre-reading

T: Next, please look at the picture of the great inventor on page 25. First I’d like you to discuss the following questions in groups. Show the following.

1. What do you know about the inventor? 2. How useful is his invention to human society? Why? After a few minutes. T: Now, who’d like to show your answers?

S1: Let me try. I know Alexander Graham Bell was born in Scotland and he was very curious about the world around him when very young. He did many tests to improve what he had invented and he had made many other inventions in his life. As we all know, it is very convenient for people to communicate with each other through telephones. It is certainly true that telephones have become part of our everyday life. Living in this “information age”, we cannot bear a world without the ringing of phones almost anywhere we go. S2: I think Bell was a very great inventor. He deeply loved his mother who was almost deaf and was determined to do something for the disabled to live a better life. What a great son! I think he was also hardworking because he took a lot of trouble doing many experiments to solve the problems and invented a lot of things. I can’t imagine what the life would be like without telephones. Maybe we will live in a silent world without knowing of the things around us, which is unbearable for us human beings in modern society. And it becomes more and more important to use telephones to receive and send information with the development of modern IT.

…

T: I agree. Alexander Graham Bell is really a famous inventor who has made great contributions to human beings and we are going to learn more about him in the following text.

Step Ⅲ Listening & Reading Let the students read the four questions first to get a general idea of what should be paid attention to and then play the tape for students to follow and give the answers to the questions. When they finish, let them exchange notes with their partners and find the supporting sentences. Then check the answers with the whole class. T: Now, please read the first sentence of each paragraph and the key words in bold

and then tell me the main idea of it.

After a few minutes. S: It mainly talks about the life of Alexander Graham Bell and how he made the great inventions. T: Very good! Next please go through the four questions on page 26 and find the answers after listening.

Ask the students to listen to the recording and try to answer the questions.

Step Ⅳ Listening and speaking T: Zhou Rui has decided to do a project on a living British inventor called James Dyson. So he telephoned Dyson’s company in England to interview one of its engineers about the great man’s ideas. Before listening to the interview, choose a machine you use every day and think about what you would do to improve it. Would you change the shape, the size or the motor? Discuss with your partner and be prepared to tell the class. S:...... T: Now listen to the interview and tick the words you hear. T:Listen again and make notes on James Dyson’s invention.