1、【课本习题】人教版 必修二 Unit 3作者：儒风无棣时间：2012年12月27日 23:54 Unit3课内练习答案（P19Ex.1）1642: The computer began as a calculating machine.1936: The computer grew rapidly both in size and in brainpower.1940s: The computer had grown as large as a room.1960s1970s: Computers were used in offices and homes.Now: Computers co
2、nnect people all over the world together.2.P19Ex.23.P20Ex.11revolution2network3simplify4calculate5mobile6solve7explore8totally9anyhow10finance4.P20Ex2explore Web technology artificial applications intelligent logically reality5.P21Ex.21. A new personal computer has been bought by my friend.2. My com
3、puter has been repaired by the shop very quickly.3. My computer has just been attacked by an unknown virus.4. The problem has not been solved by us yet.5. The computers have been given away to local school by the company.6. A kind of intelligent robot has been developed by the scientists.6.P21Ex.37.
4、P22Ex.2Two students are talking about information technology.8.P22Ex.39.P22Ex.410.P23Ex.111.P23Ex.212.Workbook练习答案（P55Ex.2）P1: No.3 P3: No2 P4: No.113.P55Ex.314.P56Ex.11floppy disc2chips3monitor4modern5DVD-ROM6scanner7keyboard8printer15.P56Ex2Personally electronic types download logically arise poss
5、ibility virus appearance16.P56Ex.31. Ben loves football and his greatest happiness is whenever he scores a goal.2. With the help of a computer, you will not find it hard to deal with and share information.3. Jack failed his exams last term and from then on his parents stopped him playing computer ga
6、mes.4. I dont like to watch over my naughty niece every weekend, but my mother insists that I do.5. When I was young, I didnt like to help my mother with the cooking, but in a way it has been useful as I am now able to make delicious food.6. A coach who can train world class athletes will be univers
7、ally popular.7. The signal to the rocket going into space went wrong, and as a result it exploded and fell into the sea.17.P57Ex.1have been given has been made has been provided have been taught has been taken has been set up has been completed18.P57Ex.21. The dates of each course have been printed
8、in the newspaper by the teacher.2. More information has been given on its website by the government.3. The computer science department of the training course by the government.4. It has been suggested by the university that they teach the course with the new computer science textbook.5. We have been promised by the computer department that we will be able to use a laptop every day.19.P58Ex.220.P58Ex.1
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