[外语类试卷]专业英语四级(阅读)模拟试卷78及答案与解析.doc
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1、专业英语四级(阅读)模拟试卷 78及答案与解析 0 The communications explosion is on the scale of the rail, automobile or telephone revolution. Very soon youll be able to record your entire life electronically anything a microphone or a camera can sense youll be able to store. In particular, the number of images a person c
2、aptures in a lifetime is set to rise exponentially. The thousand images a year I take of my children on a digital camera are all precious to me. In a generations time, my childrens children will have total image documentation of their entire lives a visual log of tremendous personal value. By then w
3、ell be wrestling with another question; how we control all the electronic devices connected to the Internet: trillions of PCs, laptops, palmpilots, cell phones and other gadgets. In Cambridge, were already working on millimeter-square computing and sensing devices that can be linked to the Internet
4、through the radio net work. This sort of connectivity will expand dramatically as microscopic communications devices become dirt-cheap and multiply. Just imagine what the paint on the wall could do if it had this sort of communications dust in it: change color, play music, show movies or even speak
5、to you. Falling costs raise other possibilities too. Because launching space vehicles is about to become very much cheaper, the number of satellites is likely to go up exponentially. Theres lots of space up there so we could have millions of them. And if you have millions of low-orbit satellites you
6、 can establish a global communications network that completely does away with towers and masts. If the satellites worked on the cellular principle so you got spatial reuse of frequencies, system capacity would be amazing. Speech is so flexible that I expect voice communication to become almost free
7、eventually: youll pay just a monthly fixed charge and be able to make as many calls as you want. By then people will also have fixed links with business contacts, friends and relatives. One day I anticipate being able to keep in touch with my family in Poland on a fibreoptic audio-video link; well b
8、e able to have a little ceremony at supper-time, open the curtains and sit down “together“ to eat. Cars are an interesting IT-platform because they have big batteries and lots of so far unconnected digital devices. Soon each one will be an entity on the Internet so your children can play interactive
9、 games while youre traveling and your partner can deal with their email. And every lamppost could be on the Internet too each one with sensors to monitor light, pollution, air quality and traffic flow. 1 Whats the central topic of the passage? ( A) IT-platform. ( B) Visual log. ( C) Voice communicat
10、ion. ( D) Telecoms. 2 Which of the following is NOT among the functions of the communications dust according to the passage? ( A) To monitor light. ( B) To change color. ( C) To show movies. ( D) To play music. 3 The future global communications network will be completely free of_. ( A) any breakdow
11、n ( B) costs ( C) towers and masts ( D) manual operation 4 Whats “cell phone“ which is in American English in British English? ( A) Cellular phone. ( B) Mobile phone. ( C) Radiophone. ( D) Telephone. 5 Which of the following is INCORRECT according to the passage? ( A) Voice communication becomes alm
12、ost free eventually. ( B) Your children can play interactive games in the car. ( C) Spatial reuse of frequencies will be in trouble. ( D) Lamppost could monitor pollution and air flow. 5 It may be one of the worlds great shopping destinations, but Londons Regent Street is failing the fashion test, a
13、ccording to the Crown Estate, which holds the lease on shops in the famous thoroughfare. And for some of its most venerable tenants that means one thing: eviction. A retail renaissance is needed in the capital, the owners believe, and are looking to top U. S. brands and the hip labels of European fa
14、shion to stem a tide of shoppers flooding towards the super-malls dotted around the M25. That means the end of the road for Regent Street legends such as Dickens if it left at7:50, they wouldnt arrive until after 9. Every morning, the town was within an ace of gridlock. One disastrous day the local
15、train company decided to discontinue the schoolkids trains on a local branch line. It was the last straw: the resulting extra cars meant that the whole place seized up, and no one got anywhere until mid-morning. A perfect demonstration of the virtues of rail travel. Its hard to pinpoint the moment w
16、hen driving your child to school became the norm. Personally, I either cycled or walked, calling for a friend en route. Only one of the children in my class came by car, an event so exceptional that I still remember the registration number. But now no sane parent would let a city kid cycle; and if y
17、ou want to let a first-schooler walk unsupervised, even in the most tranquil community, you must run the gauntlet of other parents. My daughter knew her way to school from the age of five: it was a 10-minute walk, I crossed her over the biggest road and let her go. “Arent you frightened?“ one outrag
18、ed mum demanded. What of? Paedophiles behind the hedge? Drivers on the pavement? She didnt, probably couldnt, specify. But her bogey-ridden world is todays norm. So everyone feels they must accompany young children to school. And how else to do that but by car? “I cant get to school on time without
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