57. The use of E-mail has made it possible for the writer to ____________.

　 A. spending less time working.

　 B. have more time to spend with his children.

　 C. work at home on all weekends.

　 D. work at a speed comfortable to him.

56. The purpose of this passage is to ___________.

　 A. explain how to use the Internet.

　 B. share the writer’s joy of keeping up with the latest technology.

　 C. tell the usefulness of the Internet.

　 D. introduce the basic knowledge about personal computers and the Internet.

50.A．manages　　　 B．controls　　　　 C．operates on 　　　 D．deals with

51A.．raise　　　　 B．grow　　　 　　C．rise　　　　　　 D．increase

49.A．a worker　　　 B．a farmer　　　　 C．a writer　　　 　D．a manager

48.A．disappointment　 B．achievement　 C．regret　　　　 　D．apology

47.A．Besides　　　 B．Nevertheless　　 C．However　　　　 D．Yet

46.A．success　　　 B．death　　　　　 C．victory　　　　 　D．disease

45.A．means　　　　 B．stands　　　　　 C．equals　　　　　 D．matches

44.　A．come across　 B．come into contact with 　C.look down upon　 D．watch over