Learning about Language教学设计(第二课时)

Who am I

Over time I have been changed quite a lot.I began as a calculating machine in France in 1642.Although I was young I could simplify difficult sums. I developed very slowly and it took nearly two hundred years before I was built as an analytical machine by Charles Babbage. After I was programmed by an operator who used cards with holes, I could "think" logically and produce an answer quicker than any person. At that time it was considered a technological revolution and the start of my "artificial intelligence". In 1936 my real father, Alan Turing, wrote a book about how I could be made to work as a "universal machine" to solve any difficult mathematical problem. From then on, I grew rapidly both in size and in brainpower. By the 1940s I had grown as large as a room, and I wondered if I would grow any larger. However, this reality also worried my designers. As time went by, I was made smaller. First as a PC (personal computer) and then as a laptop. I have been used in offices and homes since the 1970s. These changes only became possible as my memory improved. First it was stored in tubes, then on transistors and later on very small chips. As a result I totally changed my shape. As I have grown older I have also grown smaller. Over time my memory has developed so much that, like an elephant, I never forget anything I have been told! And my memory became so large that even I couldn't believe it! But I was always so lonely standing there by myself, until in the early 1960s they gave me a family connected by a network, I was able to share my knowledge with others through the World Wide Web. Since the 1970s many new applications have been found for me. I have become very important in communication ,finance and trade. I have also been put into robots and used to make mobile phones as well as help with medical operations. I have even been put into space rockets and sent to explore the Moon and Mars. Anyhow, my goal is to provide humans with a life of high quality. I am now truly filled with happiness that I am a devoted friend and helper of the human race!

I.Teaching Contents: Who am I

II.Teaching goals:

1.

To get a general idea of computers and what we should do with computers. 2.

To learn some new words; 3.

To learn how to make a title. III.Teaching difficulties:

To learn how to make a title

IV.Teaching tools:

PPT

V.Teaching procedures

1.Lead-in 1)

Watch a video and tell me what you can see in the video. 2)

Learn some new words. 2.Read for information 1).Timeline 1642 The computer began as a __________________ in France.

___________________ was made by Charles

Babbage. 1936 1940s Alan Turing wrote a book to describe how computers could be made to work as a “_______________”

Computers had grown ________a room. The memory improved.The first family of computers was connected by a ________

Computers were used in _____________ and many new __________ have been found.

1960 1970s

Computers are our _______friends and helpers.

2).Main idea Over time, the computer has been ________ a lot. These changes became possible as its ________ improved and many new __________were found.

3).Topic Sentence Para1 Para 2 Para 3 3.Read for skills

1).Choose the best title for Para.1

A. The development.

B. The development of the computer.

C. The size has been changed.

2).Choose the better title for Para.2

A. The memory of the computer improved.

B. The memory of the computer improved and it was first stored in tubes, and then on transistors ,and later on chips and the shape of the computer also become smaller than before.

3). Choose the better title for Para.3

A.Many new applications.

B.Many new applications ,such as communication.

C.Many new applications of the computer.

D.Many new applications of the computer ,such as communication, trade, finance, robot, etc.

4.Read for thinking

1).Discussion

What do we use computers for in daily life?

__________________________________________________________________________ 2).Conclusion

Every coin(硬币) has two sides, so does the computer. Computers changed our life both in good ways and in bad ways,it only depends on how we make use of it. If we make good use of it, it will make our lives more colorful and

convenient.

Just remember: Don’t lose yourself in playing computers. Keep fit, study well and work hard. 5.Homework

Write a short passage about “what we should do with computers?”.