2. 外语
  3. Tropical bats play an important role in the rain forest ecosystem, aiding in the dispersal of cashew, date, and fig seeds; polli

Tropical bats play an important role in the rain forest ecosystem, aiding in the dispersal of cashew, date, and fig seeds; polli

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问题 Tropical bats play an important role in the rain forest ecosystem, aiding in the dispersal of cashew, date, and fig seeds; pollinating banana, breadfruit, and mango trees; and indirectly help the producing of tequila by pollinating agave plants.
选项 A、pollinating banana, breadfruit, and mango trees; and indirectly help the producing of
B、pollinating banana, breadfruit, and mango trees; and indirectly helping to produce
C、pollinating banana, breadfruit, and mango trees; and they indirectly help to produce
D、they pollinate banana, breadfruit, and mango trees; and indirectly help producing
E、they pollinate banana, breadfruit, and mango trees; indirectly helping the producing of
答案B
解析 Parallelism; Diction
The sentence indicates three ways in which tropical bats play an important role in the rainforest ecosystem, but it does not express these three ways by using appropriately parallel grammatical constructions. The first two ways mentioned—aiding in the dispersal of cashew, date, and fig seeds and pollinating banana, breadfruit, and mango trees—are expressed using participial phrases (which function as adjectives), whereas the third is expressed as part of a compound predicate—and indirectly help the producing of tequila by pollinating agave plants (also note that the producing involves a poor choice of words, and would be better expressed by writing to produce or perhaps with the production of).
A The phrases beginning with aiding, pollinating, and help are not appropriately parallel grammatical constructions. Also the producing of is awkward and would be better worded as to produce or with the production of
B Correct. This sentence has an appropriate grammatical parallelism and involves no questionable word choices.
C The construction of the sentence is not appropriately parallel.
D The construction of the sentence is not appropriately parallel and producing is a questionable choice of words (to produce would be better).
E The construction of the sentence is not appropriately parallel and the producing of is a questionable choice of words (to produce or perhaps with the production of would be better).
The correct answer is B.
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