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OG12 119 没有人问过
119. New theories propose that catastrophic impacts of
asteroids and comets may have caused reversals in
the Earth’s magnetic field, the onset of ice ages,
splitting apart continents 80 million years ago, and
great volcanic eruptions.
(A) splitting apart continents
(B) the splitting apart of continents
(C) split apart continents
(D) continents split apart
(E) continents that were split apart
Parallelism
Th is sentence lists four eff ects of catastrophic
impacts; each eff ect, except the one included in
the underlined portion, is given in noun form:
reversals, the onset, eruptions. Splitting is a verb and
thus not parallel to the other nouns in the series;
in the second option splitting is a noun. Splitting
may be transformed into a noun by adding the
article the.
A Splitting, a verb, is not parallel to reversals,
the onset, and eruptions, and its role as a
member in the series is unclear.
B Correct. Th e splitting is a gerund, or noun
form, and is properly used in this sentence; it
is parallel to the other nouns.
C Verb split is not parallel to reversals, the
onset, and eruptions.
D If the impacts truly caused continents the
verb created would be used, but it makes no
sense to say impacts caused continents and
this phrase is not parallel to the other noun
phrases.
E Th is option is similar to the previous option:
continents cannot be said to be caused.
请问D中绿色部分做何解呢?3Q~~~~ |
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