英语第一单元练习题.doc

Exercises for Unit One
1.       The fifth generation computers, with artificial intelligence, ___________ and perfected now.
[A] developed [B] have developed
[C] are being developed [D] will have been developed
2.       You ___________ her in her office last Friday; she has been out of town for two weeks.
[A] needn’t have seen [B] must have seen
[C] might have seen [D] can’t have seen
3.       That was so serious a matter that I had no choice but ___________ the police.
[A] called in [B] calling in [C] call in [D] to call in
4.       It is politely requested by the hotel management that radios _________ later 11 o’clock at night.
[A] were not played [B] not to play
[C] not be played [D] did not play
5.       Cancer is second only __________ heart disease as a cause of death.
[A] of [B] to [C] with [D] from
6.       The ability to store knowledge makes computers different from every other machine __________ invented.
[A] ever [B] thus [C] yet [D] with
7.       I have kept that portrait ___________ I can see it every day, as it always reminds me of my university days in London.
[A] which [B] where [C] whether [D] when
8.       Strickland was remarkable only for the peculiarity ___________ he painted pictures which seemed absurd to the ordinary people.
[A] which [B] that [C] when [D] how
9.       As automation increases, the problem of unemployment will become more serious unless more men and women ___________ the training necessary for white-collar positions.
[A] would be given [B] will be given
[C] are given [D] are being given
10.   Helen __________ with her class if she had been able to meet all the requirements in time.
[A] could graduate [B] had been able to graduate
[C] will graduate [D] would have graduated
11.   ___________ Mansfield was sitting almost in the dark, reading some poems by a young and unknown writer.
[A] Only then did they notice that [B] Only then they noticed that
[C] Only did they notice that [D] Only when they noticed that
12.   I am pleased to hear of your job offer----all that hard work at school has obviously _________.
[A] paid off [B] taken its toll
[C] made a difference [D] shown up
13.   The talks might __________ for weeks before any concrete result is announce[D]
[A] press on [B] drag on [C] get bogged down [D] hold out
14.   We need someone really ___________ who can organize the office and make it run smoothly.
[A] crucial [B] realistic [C] essential [D] efficient
15.   Once Mrs. Kirpatrick ____________ you in conversation, you are stuck with her for at least half an hour.
[A] submerges [B] engages [C] occupies [D] launches
16.   It may rain ---- you’d better take an umbrella with you _____________.
[A] just in case [B] in case of    [C] as the case [D] in the case
17.   He won a car in the lottery last week. That’s his first ___________ of good luck.
[A] hit [B] struck [C] beat [D] stroke
18.   _____________ their tireless efforts, the performance was a great success.
[A] Thanking to [B] Thanks to [C] Because [D] For
19.   The company _____________ by cutting the price of their products, and it paid off.
[A] got bogged down [B] pressed on
[C] faced up to [D] took a gamble
20.   All these problems had to be _________ with as they arose.
[A] considered with [B] taken into consideration
[C] reckoned [D] thought