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26. Tropical bats play important roles in the rain forest ecosystem, aiding in the dispersal of cashew, date, and fig seeds; pollinating banana, breadfruit, and mango trees; and indirectly help produce tequila by pollinating agave plants.
(A) pollinating banana, breadfruit, and mango trees; and indirectly help produce
(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
GMAT语法改错精讲：
(A)pollinating banana, breadfruit, and mango trees; and indirectly help produce
【错误】 平行结构： 本题中“;”连接的是平行结构，“aiding……”“pollinating……”和“help”本应形成“A……;B……;and C……”的平行结构，但“help……”、“aiding……”和“pollinating……”三者语法功能不一致，无法平行。
(B)pollinating banana, breadfruit, and mango trees; and indirectly helping to produce
【正确】 分号连接的是平行结构(不仅仅用于连接两个主谓结构)，将“aiding in the dispersal of cashew, date, and fig seeds”、“pollinating banana, breadfruit, and mango trees”和“indirectly helping to produce”三个结构平行在一起形成了“A; B; and C”结构。
【大意】 热带蝙蝠在雨林生态系统中扮演重要角色，帮助散播海枣、腰果和无花果的种子;为香蕉、面包果、芒果的树授粉;并通过为龙舌兰授粉而帮助生产龙舌兰酒。
(C)pollinating banana, breadfruit, and mango trees; and they indirectly help to produce
【错误】 平行结构：类似地，见(A)。
(D)they pollinate banana, breadfruit, and mango trees; and indirectly help producing
【错误】 平行结构：类似地，见(A)。
(E)they pollinate banana, breadfruit, and mango trees; indirectly helping the producing of
【错误】 平行结构：类似地，见(A)。
【最优解题思路推荐】
(B)中出现了“aiding in the dispersal of cashew, date, and fig seeds; pollinating banana, breadfruit, and mango trees; and indirectly helping to produce”,合理正确的平行结构，其他选项各有各的不平行，因此选择(B)。
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