Unit 3 reading Sun qihua Prereading Solve a
- Slides: 18
Unit 3 reading Sun qihua
Pre-reading Solve a riddle : one thing It has a big face guess With many keys Download information Two big ears which can play music You can watch TV or see a movie using it It can be seen in the office, classroom and at hom
We can see many brands of computers Lenovo 联想 Haier 海尔 惠普 神州 Dell Tinghuatongfang清华同方 TCL Acer宏基
What makes up the computer? And can you name each. NIC/内存 part ? screen CPU/处理器 (Central processing unit) Main board/主板 mouse Sound box Key-board headphone Hard disk GPU/显卡
Do you like it?
First-reading 1. Where were you in 1642? 2. What happened to you in 1822? 3. Who was your real father? 4. What happened to you in the 197
1. Where were you in 1642? In France
2. What happened to you in 1822? I was built as an analytical machine by Charles Babbage
3. Who was your real father? Alan Turing
4. What happened to you in the 1970 s? I was brought into People’s homes.
Timeline 1642 calculating machine: analytical machine 1936 Alan Turing wrote a book to describe …… 1960 s had new transistors, smaller, connected 1970 s people’s home Now connect all over the world
The development of computers technology F. analytical machine A. universal machine D. artificial intelligence B. calculating machine E. Internet C. PC (desktop/notebook) The order B: F A D C E
People say computers have more advantages than disadvantages. Do you think so? A advantages Such as : Send an e-mail B disadvantages It is bad for your eyes
advantages Download(下载) information See a movie or watch TV Play computer games Buy goods you want Do some chatting improve people's ability of thinking - - - -
disadvantages Too expensive Addictive to play computer games Virtual things (虚拟的) People can not write right Chinese letters - - - -
Summary writing
Homework 1. Should students surf the Internet? net bar 2. Should students go to the net bar? at home
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