专升本英语（完型填空）模拟试卷23
完型填空
What was the origin of the oil which now drives our motorcars and aircraft? Scientists are【C1】______about the【C2】______of coal, but they do not seem so【C3】______when asked about oil. They think that the oil【C4】______the surface of the earth originated in the【C5】______past, and was formed【C6】______living things in the sea. Countless billions of【C7】______sea creatures and plants lived and【C8】______to the sea bed. They were covered with huge【C9】______of mud; and by【C10】______of chemistry, pressure and temperature were changed through long【C11】______into what we know as oil. For these creatures to become oil, it was necessary that they should be【C12】______between layers of rock for an enormous【C13】______of time. The【C14】______that oil originated in the sea is【C15】______by a glance at a map【C16】______the chief oil fields of the world; very【C17】______of them are far distant from the oceans of today. In some places gas and oil【C18】______to the surface of the sea from its bed. The rocks in which oil is found are【C19】______marine origin too. They are sedimentary rocks, rocks which were【C20】______by the action of water on the ocean.
1.【C1】(A)
A. confident
B. confirmed
C. confined
D. confidential
解析：
2.【C2】(C)
A. construction
B. structure
C. formation
D. architecture
解析：
3.【C3】(B)
A. ensure
B. sure
C. assure
D. secure
解析：
4.【C4】(B)
A. within
B. under
C. behind
D. from
解析：
5.【C5】(C)
A. fair
B. ancient
C. distant
D. long
解析：
6.【C6】(A)
A. from
B. with
C. by
D. upon
解析：
7.【C7】(A)
A. minute
B. delicate
C. celebrated
D. complicated
解析：
8.【C8】(D)
A. dwelt
B. settled
C. depressed
D. sank
解析：
9.【C9】(A)
A. deposits
B. waste
C. dust
D. rubbish
解析：
10.【C10】(B)
A. progress
B. processes
C. program
D. procession
解析：
11.【C11】(C)
A. century
B. time
C. ages
D. cycle
解析：
12.【C12】(A)
A. imprisoned
B. composed
C. comprised
D. compressed
解析：
13.【C13】(B)
A. period
B. length
C. extension
D. exhibition
解析：
14.【C14】(D)
A. significance
B. suggestion
C. proposal
D. statement
解析：
15.【C15】(C)
A. cautioned
B. postponed
C. confirmed
D. scored
解析：
16.【C16】(B)
A. shown
B. showing
C. show
D. shows
解析：
17.【C17】(A)
A. few
B. fewer
C. less
D. little
解析：
18.【C18】(C)
A. go over
B. go out
C. come up
D. head for
解析：
19.【C19】(C)
A. in
B. on
C. of
D. off
解析：
20.【C20】(A)
A. laid down
B. made out
C. laid aside
D. turned to
解析：
What was the origin of the oil which now drives our motorcars and aircraft? Scientists are【C1】______about the【C2】______of coal, but they do not seem so【C3】______when asked about oil. They think that the oil【C4】______the surface of the earth origina
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