14．Computer technology is still developing rapidly．The computer of the future will continue to increase in value and performance while decreasing in cost．It will become smaller，but faster and more powerful．
It is possible to make some guesses about what the future of the computer will look like，based upon the types of technologies that are being developed now．A lot of progress has already been made in some of these new technologies，but some are still in their earliest stages and may not be ready for use for years．Two of the most interesting areas of computing that are currently being developed are quantum computing （量子计算） and nanotechnology （纳米技术）．
Quantum computing is one possibility for the future of the computer that could make computers run far faster than even the quickest computers do today．Quantum computers could be able to do what modern supercomputers are unable to do by using transistors that are able to take on many states at the same time．
Nanotechnology could also change the face of computing，by creating computers that could be very powerful，though they are tiny in size．These computers could be incorporated （并入） into everyday objects，including electrical appliances （电器），clothes and even the human body．We will be able to use computers in new and unimaginable ways．They will become a part of our lives rather than simply being a box that is used only for specific purposes，such as work．
Quantum computing and nanotechnology will be able to play new roles，which will make us live greener lives，as well as enjoy better health and happier lives．
21．Which of the following can NOT describe the computer of the future properly？D
A．Much smaller．
B．Much faster．
C．More powerful．
D．Less valuable．
22．According to the text，quantum computingD．
A．has been put in use so far
B．can make computers run by themselves
C．can reduce the cost of computers
D．will work by using transistors
23．We can learn from the text that nanotechnology willA．
A．create much smaller computers
B．be used in electrical appliances and clothing
C．change the structure of computers
D．make computers just serve specific purposes
24．The text is mainly aboutC．
A．what nanotechnology is
B．what quantum computing is
C．what the future of the computer is
D．what future computers can bring us．
分析 本文是一篇说明文，介绍了未来的更加快捷、微型、强大的计算机．简要介绍计算机领域最有趣的两种技术，第一个是量子计算，第二个是纳米技术．
解答 21．D．细节理解题．根据第一段The computer of the future will continue to increase in value and
performance while decreasing in cost．It will become smaller，but faster and more powerful．可知未来的计算机变得更有价值，故选D．
22．D．细节理解题．根据第三段Quantum computing is one possibility for the future of the computer that could make computers run far faster than even the quickest computers do today．可知量子计算机比我们现在使用的晶体管计算机运转得更快，故选D．
23．A．细节理解题．根据第四段Nanotechnology could also change the face of computing，by creating computers that could be very powerful，though they are tiny in size．These computers could be incorporated into everyday objects，including electrical appliances，clothes and even the human body．可知纳米技术能创造更小的计算机，这些微型计算机可以并入日常生活用品中，例如电器，衣服甚至人体，故选A．
24．C．主旨大意题．由第二段It is possible to make some guesses about what the future of the computer will look like，based upon the types of technologies that are being developed now．可知本文主要介绍了未来的计算机，其中最有趣的两种技术：量子计算和纳米技术，故选C．
点评 考察学生的细节理解和推理判断能力，做细节理解题时一定要找到文章中的原句，和题干进行比较，再做出正确的选择．在做推理判断题不要以个人的主观想象代替文章的事实，要根据文章事实进行合乎逻辑的推理判断．
