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必修2《Warming up、Pre-reading、Reading、Comprehending》优质课PPT课件下载
abacus
Guess more:
I am very small. I can be used for calculating. In China, a lot of students use me when solving mathematical problems.
Do you know who I am?
calculator
I can be used for calculating. Besides, I can also be used for watching DVD, sending e-mail and communicating through the Internet. However, I am not a PC, because I’m small enough for you to take me with you.
notebook computer/
laptop
Do you know who I am?
A huge computer
A PC
Palmtop (掌上电脑)
calculator
abacus
laptop
Who am I ?
listening and Skimming : Listen to the story to find out who the speaker is. Write down the main idea of each paragraph
It is a computer.
Applications
Development
History
Timeline
The computer began as a calculating machine
The computer grew rapidly both in size and in brainpower.
The computer had grown as large as a room.