[单项选择]The use of computers, already very important today, will continue to create great changes for white-collar workers. In 1 , as in factories, there will be a need for fewer people, 2 those people will need more skills. Secretaries, for instance, will need to be able to use word processing and other computer packages. In addition, many office workers will be free to work in several 3 -e.g. the office and the home. This will be possible because of the computer networks--groups of 4 computers. These computer networks will cause more changes in family life. Today, more men and women have to leave the house for work or study, but in the future both men and women may 5 to stay home with a computer and 6 be able to receive a paycheck. And how will people spend this paycheck 7 until now, consumers have been buying from stores most of the things that they need or want. They’ve driven cars or taken b
A. costs
B. habits
C. demands
D. centers

[单项选择]The use of computers, already very important today, will continue to create great changes for white-collar workers. In 1 , as in factories, there will be a need for fewer people, 2 those people will need more skills. Secretaries, for instance, will need to be able to use word processing and other computer packages. In addition, many office workers will be free to work in several 3 -e.g. the office and the home. This will be possible because of the computer networks--groups of 4 computers. These computer networks will cause more changes in family life. Today, more men and women have to leave the house for work or study, but in the future both men and women may 5 to stay home with a computer and 6 be able to receive a paycheck. And how will people spend this paycheck 7 until now, consumers have been buying from stores most of the things that they need or want. They’ve driven cars or taken b
A. shops
B. classrooms
C. offices
D. hospitals

[单项选择]Computers are very important to modem (现代的) life. Many people think that in the future computers will be used in lots of everyday life. It is thought that we won’t have to go shopping because we will be able to get most things which are sold in the shops on the Interact. There will be no more books because we will be able to get all texts from computers. The Internet will be used to play games, see films and buy food. Most telephone calls will be made by computers.
Some people are glad about these new ways of shopping and communication (交流). Others do not think that computers will replace (取代) our old ways.
Let’s look at books, for example. Some people think that one day we will not read books made of paper. In- stead, we will buy and read books using computers. We will read texts on small pocket computers. The computers will keep many different books in them at the same time. We won’t need to turn lots of pages and paper will be saved. Computerized (计算机化的) books will b
A. play games, see films and have meals
B. play games, go shopping and make telephone calls
C. see films, buy food and see the doctor

[单项选择]　　　 Composers today use a wider variety of sounds than ever before, including many 　　　 that were once considered undesirable noises. Composer Edgard Varese (1883-1965) 　　　 called thus the "liberation of sound...the right to make music with any and all sounds." 　　　 Electronic music, for example―made with the aid of computers, synthesizers, and (5) electronic instruments―may include sounds that in the past would not have been 　　　 consdered musical Environmental sounds, such as thunder, and electronically generated 　　　 hisses and blips can be recorded, manipulated, and then incorporated into a musical 　　　 composition. But composers also draw novel sounds from voices and nonelectronic 　　　 instruments. Singers may be asked to scream, laugh, groan, sneeze, or to sing phonetic (10) sounds rather than words. Wind and string players may lap or scrape their instruments. 　　　 A brass or woodwind player may hum while playing, to produce two pitches at once; a 　　　 pianist may re
A. String
B. Percussion
C. Woodwind
D. Brass