北航10秋学期《大学英语4》在线作业1-3

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试卷总分：100       测试时间：--       试卷得分：100

?        单选题


、单选题（共 25 道试题，共 100 分。）    得分：100
1.  （ ）you（ ）further problems with your printer, contact your dealer for advice.
A. If, had
B. Have, had
C. Should, have
D. In case, had
正确资料：C      满分：4  分  得分：4
2.  （ ）the dog. He has been chained up for hours.
A. Relax
B. Release
C. Relay
D. Reflect
正确资料：B      满分：4  分  得分：4
3.  （ ）with his new teaching method, we need to take a critical look at our traditional ones.
A. Cursed
B. Depressed
C. Impressed
D. Fed up
正确资料：C      满分：4  分  得分：4
4.  A defect of vision prevents him from（ ）his eyes accurately on an object.
A. emphasizing
B. relaxing
C. focusing
D. achieving
正确资料：C      满分：4  分  得分：4
5.  Animals can become unusually ( )when they are upset by a sudden environment change.
A. puzzling
B. dominant
C. aggressive
D. vigorous
正确资料：C      满分：4  分  得分：4
6.  （ ）her tall sisters, Susan is of average height.
A. Considering
B. Unlike
C. likely
D. Concerning
正确资料：B      满分：4  分  得分：4
7.  （ ）his poor health he had to retire at the age of 50.
A. Thanks to
B. Because
C. Owing to
D. For
正确资料：C      满分：4  分  得分：4
8.  As nobody here knows what is wrong with the machine, we must send for an engineer to （ ） the problem.
A. handle
B. raise
C. face
D. present
正确资料：A      满分：4  分  得分：4
9.  "Are you worried about your son being alone in a strange country?"" （ ）___. I'm sure he'll manage fine"
A. By all means
B. Of course
C. Not in the least
D. No wonder
正确资料：C      满分：4  分  得分：4
10.  American companies are evolving from mass-production manufacturing to（ ）enterprises.
A. moveable
B. changing
C. flexible
D. varying
正确资料：C      满分：4  分  得分：4
11.  A pen is to a writer,（ ）a gun is to a fighter.
A. as
B. like
C. that
D. what
正确资料：D      满分：4  分  得分：4
12.  All of us would have enjoyed the party much more if there（ ）quite such a crowd of people there.
A. weren’t
B. hasn’t been
C. hadn’t been
D. wouldn’t been
正确资料：C      满分：4  分  得分：4
13.  Although Mary is satisfied with her success, she wonders（ ）will happen to her private life.
A. how
B. who
C. what
D. that
正确资料：C      满分：4  分  得分：4
14.  All the streets are wet, it（ ）last night.
A. must rain
B. was raining
C. must have rained
D. rained
正确资料：C      满分：4  分  得分：4
15.  A dutiful official never（ ）himself of his responsibility for his work.
A. reminds
B. quits
C. disposes
D. risks
正确资料：A      满分：4  分  得分：4
16.  There are times when children feel that they could manage very well（ ）their parents would leave them alone.
A. only when
B. only if
C. when only
D. if only
正确资料：D      满分：4  分  得分：4