人教版高二英语选修8 Unit 3 Inventors and inventions全单元教案

Unit 3 Inventors and inventions

The First Period   Warming up

一．Aims:

1. Teaching aims 教学目标：

Help the students learn how to talk about inventions and discoveries.

重点词汇和短语

discovery, application, uate, presentation, alternative, messenger, get together, make a case for, add up

2. Ability aims能力目标

Enable the students to talk about information and different.

二．Contents

Step I Ask the students to talk about the pictures with the teacher’s help, and then discuss the first two questions.

what is a discovery?

What’s the difference between a discovery and an invention?

Step II Work in pairs and talk about the three different things, telling them apart and giving reasons.

1. Which these pictures show inventions? Does any of them show discoveries?

2. Work out two rules that will help you decide what is a discovery and what is an invention?

Step III Go on with some other questions of this part.

What modern inventions do you know? Describe them to your partner and how useful they are in life today.

Step IV Work in groups of four to discuss the question: Suppose you are working for a mobile company. It is your job to suggest new ways of developing a mobile. In pairs discuss some new applications of a mobile. Make a list of the ones you like and that seem the most useful. Choose one you both like and think will be popular with other people.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

The Second Period    Reading

一．Aims:

1. Teaching aims 教学目标

How s to describe the problem of the snakes and what has been done by the writer to solve the problem.

重点词汇和短语

Patent, distinguish, product, power, perfume, cube, abrupt, abruptly, convenient, expectation, monitor, passive, criterion, valid, application, file, rod, call up, now and then, set about, in case

2. Ability aims能力目标

Enable the students to describe the problem of the snakes and what has been done by the writer to solve the problem. Make them realize it takes steps to catch the snakes and it’s not easy to get a patent.

二．Contents:

Step I Ask the Ss to guess about the content of the passage from the title.

Then ask the Ss to judge the right order of stages of inventions.

Step II Get the Ss to comprehend the passage carefully and accurately, and then divide the text into several parts and work out the main idea for each paragraph.

PartⅠ (Para.1)    the discovery of the problem of snakes

PartⅡ (Para.2-3)  the research on the approaches to solve the problem

PartⅢ (Para.4-6)  the attempts to catch the snakes

PartⅣ (Para.7-8)  the requirements of getting a patent.

Step III Ask Ss to go over the whole text again and analyze the text in details.

Discuss the following questions:

1.What are the writing techniques of this text?

2.What’s the main idea of the text?

3.What should we learn from this text?

4.What’ the writing purpose of the writer?

Step IV Comprehending: Finish the exercise1, 2, 3.

 

 

 

 

 

 

 

 

 

 

 

 

The Third Period    Language Points

一．Aims:

Talk about inventors and inventions

Learn about the stages used in scientific research

二．Contents:

Step I  words and phrase

1. Do you know the stages every inventor must go through before they can have their invention approved?

 

 

go through

(1)经历(2)通过,成功,成交(3)审阅,检查(4)翻找,查看(5)穿过,通过

Most families went through a lot in the war.

2. I was researching into the habits of snakes so I could trap them in the easiest way.

  do research on /into /in...  从事, 进行, 做研究

   They are carrying out a research into the causes of cancer.

   They are doing research into electricity.

3. when I called up my mother in the countryside on the phone.

call up  打电话，使......回忆起

    I’ll call you up tonight (call sb. /ring sb. up )

    The old photo calls up memories of my childhood. (recall sth.)

4. Snakes come near the house now and then.

now and then   有时, 偶尔

   I see them now and then, but not often.                                                              

5. Here was a chance for me to distinguish myself by inventing something that would catch snakes but not harm them.

 distinguish oneself   显扬自己, 使自己扬名

6. But there only seemed to be powders designed to kill snakes.

powder: n. 粉，粉末；药粉；火药

grain sth. into powder 把磨成粉

7. I set about researching the habits of snakes so I could tap them in the easiest way.

 set about   开始, 着手 The sooner we set about it , the sooner we’ll finish.  

8. This was in the expectation that the snakes would bite again.

expectation: n. 预料，期待

Against all expectation, she won first prize.

9. abruptly  adv.

   A man with an abrupt manner is not welcome here.

10. convenient

 Come and see me whenever it is convenient to you.

    If it is quite convenient to you, I’ll visit you next Tuesday.                                                             

11.If it passes that test, your application for a patent will be published 18 months from the date you apply.

application: n. 应用，运用；申请，请求；努力，专注

The invention had no practical application.

12. bear (bore, borne) 忍受; 带有, 具有

   I couldn’t bear to listen any longer, so I left the room.

   bear doing  表示习惯性动作   bear to do sth.  表示一次具体动作

This letter bears french stamp.

13. mess: n.杂乱,脏东西  v.无所事事, 混日子,胡闹

There is a lot of mess to clear up.

14. but monitored carefully, the snakes proved to be no trouble and all went according to plan.

monitor: vt.监听，收听：监视

15. I collected the passive snakes and the next day we released them all back into the wild.

passive: adj. 被动的，消极的；不抵抗的；不活跃的

He played a passive role in the marriage.

Step II sentences

1. The first thing I tried to do was to see if there were products that might help me, but there only seemed to be powders designed to kill snakes.    P20

2. Between the outside and inside walls of the bowl there is some jelly, which freezes hard when cooled.  P20

3. The criteria are so strict that it is difficult for new ideas to be accepted unless they are truly novel.  P21

The Forth period    Learning about language and Using language

一．Aims

1. Teaching aims 教学目标

Help the Ss learn how the famous inventor Alexander Graham Bell invented telephones

重点词汇和短语

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

重点句子

He found that by pressing his lips against …

He designed a machine that …

Although he will always be known for …, he was …

He realized that by understanding how …

2. Ability aims能力目标

Enable the Ss to learn about the famous inventor Alexander Graham Bell and his inventions.

二．Contents

Step I  Check the homework. Get the Ss to finish the exercises on page 23-24.

Step II  Ask the Ss to discuss the following questions:

1.What do you know about the inventor?

2.How useful is his invention to human society?

Step III  Let the Ss read the four questions first to get general idea of what should be paid attention to and then play the tape for Ss to follow. When they finish, let them  exchange notes with their partners and find the supporting sentences. Then check the answer with the whole class.

Step IV  Give the Ss the reading task:

Do you know about the world famous painting “Mona Lisa”?

Do you know who painted the great picture?

Do you think Leoanrdo da Vinci is really a good painter? What else do you know he is famous for?

Step V  Ask the Ss to do exercise 1 and exercise 2

Then ask the Ss to do Exercise 3, that is, having a discussion