If ____, the dirty air will lead you to fall ill


  1. A.
    breathe in
  2. B.
    you to breathe in
  3. C.
    breathing in
  4. D.
    breathed in
D
考查非謂語動詞。句意：如果被吸入，這些臟空氣會導(dǎo)致你生病。過去分詞表示被動的動作和句子主語是動賓關(guān)系，結(jié)合語境可知選D。
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  What is in the drug that makes you sick or dead? For example, cocaine is harmful, but what makes it harmful?

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36.

A.

make

B.

cause

C.

help

D.

let

37.

A.

funny

B.

different

C.

simple

D.

true

38.

A.

just

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really

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especially

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sometimes

39.

A.

as if

B

even if

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A.

powerful

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helpful

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painful

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helpless

41.

A.

high

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tall

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much

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A.

when

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until

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as

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before

43.

A.

besides

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thus

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however

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naturally

44.

A.

at most

B.

at least

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at times

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at first

45.

A.

carefully

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easily

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a lot

46.

A.

where

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before

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after

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worked

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number

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worries

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happiness

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freedom

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pride

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A.

lead

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block

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stick

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places

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nature

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people

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environment

54.

A.

inside

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around

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outside

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next

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A.

heart

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head

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