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专业英语八级考试改错练习模拟试题

2021-04-24 20:15:02外语类访问手机版455

  专业英语八级考试改错练习模拟试题

  勤能补拙是良训,一分辛劳一分才。以下是小编为大家搜索整理的专业英语八级考试改错练习模拟试题,希望对大家有所帮助!想了解更多精彩内容请及时关注我们应届毕业生考试网!

  task 1

  The telephone system is a circuit-switched network. For much of the history of the system, when you placed 26

  a call, you were renting a pair of copper wires that ran continuously from your telephone to the other party’s phone. You had excluding use of those wires during the 27

  call; when you hung up, they were rented to someone else. Today the transaction is more complicated. your call may well possess a fiber-optic cable or a satellite with hundreds of other calls, but more conceptually the system 28

  still works the same way. When you dial the phone, you get a private connection of one other party. This is an alternative network architecture called 29

  packet switching, in which all stations are always connected to the network, but they receive only the messages addressed to them. It is as if your telephone was always tuned in to 30

  thousands of conversations going on the wire, but you 31

  heard only the occasional word intended to you. Most 32

  computer networks employ packet switching, because it is more efficient than circuit switching when traffic is heavy. It seems reasonable the existing packet-switched 33

  network will grow, and new one may be created; they could 34

  well absorb traffic that would otherwise go to the telephone system and thereby reduce the need for telephone numbers. 35

  答案:

  26.much改为most

  27.excluding改为exclusive?

  28.more?

  29.This改为There

  30.was改为were?

  31.going后加by

  32.to改为for

  33.reasonable后加that

  34.one改为ones

  35.need改为demand??