大学英语2,在线考试

Of course, scientists cannot answer all of our questions. If we ask, “Why is the ocean full of salt?” scientists will say that the salt comes from rocks. When a rock gets very hot or very cold, it cracks. Rain falls into the cracks. The rain then carries the salt into the earth and into the rivers. The rivers carry the salt into the ocean. But then we ask, “What happens to the salt in the ocean? The ocean does not get more salty every year.” Scientists are notsure about the answer to this question.
A)
people feel cool when they are near a lake or an ocean
B)
scientists can explain everything we want to know
C)
scientists can explain many things but not everything
B)
would
C)
did
D)
had
参考答案：A
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解析：
无
9(2.0分)
—I’m so tired, working all morning on the farm.
—Why not take a rest , then? — _________.
A)
Because I can’t afford it
B)
everything about the ocean
C)
why the ocean does not get more salty
D)
what happens to the salt in the ocean
参考答案：A
4、（3分）
A rock cracks when ______ .
A)
rain falls
B)
it gets very hot
C)
it gets very cold
D)
either B or C
参考答案：D
5、（3.0分）
People are always curious because ______ .
A)
they know nothing about the world
B)
they know little about the world
参考答案：D
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解析：
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2(2.0分)
—Excuse me. I don’t want to interrupt you…
—____________
A)
No，no. It’s quite all right.
B)
It won’t bother me.
C)
Never mind.
D)
Of course not.
Geese are known to take the first living thing they see as their mother. Thus, to these young geese, the girl was their mother.
As they grew, the girl was able to lead her birds to run across the grass, but she could not teach them to fly. The girl became increasingly worried about this, both when awake and in her dreams. Later, she had an idea. She would pilot a plane to guide them in flight. She asked her father for a plane and he assembled small aircraft for her.
to open；No，please
B)
open；Yes，please
C)
opening；No，of course not
D)
opening；Yes，please
参考答案：C
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解析：
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二、Reading Comprehension
答题要求:
Each passage is followed by some questions or unfinished statements. For each of them there are four choices marked A, B, C and D. You should decide on the best choice.
B)
Sorry，I don’t think so. I get overpaid for overwork，you know.
C)
That’s right. All work and no play make Jack a dull boy.
D)
That’s right，but the work is interesting. I don’t mind some extra hours at all.
C)
the water is colder than the earth
D)
the cool air from the water moves towards the land
参考答案：D
3、（3分）
Now scientists know ______ .
A)
what makes people feel cool near a lake or an ocean in summer
B)
Pleased to meet you，George.
C)
Mind if call you George?
D)
The pleasure’s mine.
参考答案：B
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解析：
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4(2.0分)
—Why don’t you have dinner with me tonight?
—____________
D)
Oh，you shouldn’t have done that.
参考答案：A
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解析：
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6(2.0分)
—What kind of food would you like to have?
—________ but Japanese.
—How about Korean, then?
A)
Anything
A)
The reason is that I have to work over time tonight.
B)
Sorry about that，but I have to go to a party.
C)
Because I have an appointment.
D)
I’d love to，but I have to finish my paper.
C)
there are answers they do not have
D)
either A or B
参考答案：C
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解析：
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12(15.0)
In theUnited Statesthere was an unusual tale telling of the daughter of a mechanic. One day while walking along the bank of a lake, the girl happened to see 20 eggs laid by a wild goose. After some time the girl realized the mother would not return to her eggs and she decided to take them home. There she carefully placed the eggs in the heat of a lamp. Several days later the eggs broke and the baby geese came into the world.
B)
Maybe I should
C)
I don’t know
D)
Sorry，I can’t tell you
参考答案：B
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解析：
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10(2.0分)
—Would you mind ____ the window? It’s hot here!
—_______________________.
A)
11(15.0)
When the weather is hot, you go to a lake or an ocean. When you are near a lake or an ocean, you feel cool. Why? The sun makes the earth hot, but it cannot make the water very hot. Although the air over the earth becomes hot, the air over the water stays cool. The hot air over the earth rises. Then the cool air over the water moves in and takes the place of the hot air. When you are near a lake or an ocean, you feel the cool air when it moves in. You feel the wind. And the wind makes you cool.