unit7单元练习_Unit7 单元练习0
unit7单元练习_Unit7 单元练习0
试卷总分:100 得分:100
Vacabulary
Choose the best answer for each of the following items.
1. The word laser ________ “light amplification by stimulated emission of radiation”.?
A. stand by
B. stands for
C. stand in
D. stand out
答案:
国开搜题
2.More recently, lasers have been used to ______ skin discolorations.?
A. take渝粤教育
B. remove
C. recover
D. move
答案:
3.Over the past twenty years, personal computers have brought ______ changes to the home and workplace.?
A. gigantic渝粤搜题
B. curious
C. terrible
D. tremendous
答案:
4.?As the laser was developed, scientists began thinking of ?_______ applications for it.?
A. particular
B. special
C. practical一网一平台答案
D. especial
答案:
5.The light from the sun moves away from its source in all directions, so its strength is very _______.
A. broken out
B. spread out
C. looked out
D. figured out
答案:
Grammar
Choose the best answer for each of the following items.
6.Incoherent light, like the light from the sun or the light bulb, ________ from its source in all directions.?
A. move away
B. moving away
C. moves away
D. moved away
答案:国开搜题
7.A laser beam ________ on a single cell, on part of a cell, or even individual atoms and molecules.?
A. makes enough narrow focus国家开放大学作业答案
B. is made enough narrow to focus
C. can be made narrow enough to focus
D. may be made enough narrow to focus
答案:
国家开放大学作业答案
8.A person ___ with a laser can aim this coherent light, ____ a laser beam, in any direction.
A. work; call
B. working; called渝粤教育
C. working; call
D. worked; calling
答案:
9.The atoms of certain substance are excited in such a way ______ they produce coherent light.?渝粤题库，我们的目标是要做全覆盖、全正确的答案搜索服务。
A. which
B. who
C. that
D. what
答案:
10.The light from a laser, ______ in only one direction and ________ in a narrow beam, is much stronger.
A. moves; concentrates
B. moving; concentrating
C. moving; concentrated
D. moved; concentrates
答案:
Dialogue
Choose the best answer for each of the following items.
11.– Repair department. May I help you?
– __________________________________.
A. Yes. I’d like to know if my CD player has been repaired yet.
B. I asked for the repair department.
C. Just a moment, please. The manager will be in soon.
答案:
12.– Sorry, sir, it’s not ready yet.
– ___________________.
A. Please do. I’ll be waiting.
B. Ok, hold on, please.
C. Not yet? Is there some problem?
答案:
13.– Is there some problem?
– _______________________.
A. I am sorry. The parts have been ordered, but they haven’t come in yet.一网一平台答案
B. It was supposed to have been ready last week.国家开放大学作业答案
C. I will call you as soon as the repair is finished.
答案:
14.– I need to speak to Mr. Tucker. This is a very urgent matter.
– -------------_________________________________________.
A. Just a minute. Sorry, it is not ready yet.
B. what’s the problem?国开形成性考核答案
C. please, I will be waiting.
答案:
15.– Hello, Mr. Snyder. What can I do for you?渝粤教育
– ______________________________.
A. My car sounds like a motorboat at full speed.
B. It looks as if you need a new radio.
C. We’ll take a closer look, and get back to you later today.
答案:
Reading国开形成性考核答案
Read the following passages and choose the best answer for each of the following questions.
Passage 3
?
A friend of mine was fond of drawing horses. He draw the horses very well, but he always begins with the tail. Now it is the Western rule to begin at the head of the horse, which is why I am surprised. It strikes me that it could not really make any difference whether the artist begins at the head or the tail or the belly or the foot of the horse, if he really knows his business. And most great artists who really know their business do not follow other people's rules. They make their own rules. Every one of them does his work in a way peculiar to himself; and the peculiarity means only that he finds it easier to work in that way.
Now the very same thing is true to literature. And the question, "How shall I begin?" only means that you want to begin at the head instead of beginning at the tail or somewhere else. That is, you are not yet experienced enough to trust your own powers. When you become more experienced you will never ask the question, and I think that you will often begin at the tail - that is to say, you will write the end of the story before you have even thought of the beginning.渝粤搜题
16.A friend of the writer's draw the horses ____.
A. very well
B. in the way of western rule国开搜题
C. in the way of his own rule
D. all of the above
答案:
17.The writer is surprised because ____.
A. the Western artist begins to draw at the head of the horse
B. the artist begins to draw at the tail of the horse
C. the artist makes his own rule
D. the artist does not follow other people's rule
答案:
18.You are not yet experienced because ____.国开搜题国家开放大学作业答案
A. you don't know where to begin with
B. you want to begin at the head instead of beginning at the tail
C. you always asked questions
D. you do not trust your own powers
答案:
国家开放大学作业答案
19.When you become more experienced in writing, you will probably ____.
A. never ask questions
B. often begin at the tail
C. write the end of the story
D. think of the beginning渝粤教育
答案:
20.The topic of the passage is “______”.
A. How to draw a horse
B. How to write a story
C. How to make your own rules
D. Make your own rules
答案:
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