英语四级完型填空练习题 第029组

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综合题,请根据题目给出的内容,来回答下面给出的试题。
Space is a dangerous place, not only because of meteors(流星) but also because of rays from the sun and other stars. The atmosphere again acts --1-- our protective blanket on --2--. Light gets through, and this is essential --3-- plants to make the food which we --4--. Heat, --5--, makes our environments tolerable and some ultraviolet rays(紫外线的) penetrate the --6--. Cosmic(宇宙的) rays of various kinds come --7-- the air from outer space, but --8-- quantities of radiation from the sun are screened off. --9-- men leave the atmosphere they are --10-- to this radiation; --11-- their spacesuits or the walls of their spacecraft, if they are inside, --12-- prevent a lot of radiation damage. Radiation is the greatest known danger to explorers in --13--. Doses of radiation are measured in --14-- called "rems(雷目)". We all --15-- radiation here on earth from the sun, from cosmic rays and from radioactive minerals. The "--16--" dose of radiation that we receive each year is about two millirems; it --17-- according toswheresyou live, and this is a very rough estimate. Scientists have reason to think --18-- a man can --19-- far more radiation --20-- without being damaged; the figure of 60 rems has been agreed.
请根据上面给出的内容,来回答下面的单项选择题(下列每小题备选答案中,只有一个符合题意的正确答案。每小题0分,共20题。)
1.
A :for
B :with
C :on
D :as
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2.
A :stars
B :sun
C :earth
D :space
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3.
A :with
B :from
C :under
D :for
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4.
A :use
B :live
C :eat
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5.
A :again
B :also
C :besides
D :too
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6.
A :environment
B :space
C :atmosphere
D :earth
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7.
A :across
B :to
C :from
D :through
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8.
A :valid
B :enormous
C :various
D :proper
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9.
A :As soon as
B :As well as
C :As much as
D :As possible as
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10.
A :shown
B :exposed
C :faced
D :covered
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11.
A :but
B :because
C :so
D :so that
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12.
A :get
B :make
C :have
D :do
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13.
A :earth
B :atmosphere
C :space
D :enviroment
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14.
A :pieces
B :units
C :parts
D :elements
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15.
A :receive
B :accept
C :bring
D :catch
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16.
A :conventional
B :common
C :general
D :normal
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17.
A :shifts
B :converts
C :modifies
D :varies
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18.
A :what
B :which
C :that
D :why
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19.
A :put up with
B :keep up with
C :come up with
D :catch up with
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20.
A :from
B :than
C :as
D :away
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综合题快速到达:1