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人教2003课标版《Warming up、Pre-reading、Reading、Comprehending》优质课PPT课件下载
the second generation
(1956-1963)
the third generation
(1964-1971)
the fourth generation
(1971- )
The first generation
(1945-1956)
What is PC?
It means: personal computer.
2. What is IT?
Information Technology.
3. What is CD-ROM?
Compact disc read-only memory.
4. What is PDA?
Personal digital assistant.
Speak the name on the whole.
5. What is W.W.W?
World wide web.
6. 科学技术。
Science and technology.
7. 人工智能。
Artificial intelligence.
8.笔记本电脑。
Notebook computer.