OG13-sc-26

pattytraine

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

关于E的解释不太明白，OG13认为此项是平行的，错点在help的用法上应该改成helping to produce。

为什么这项是平行的呢？ they pollinate banana没有破坏平行吗？ 困惑呀~

masushuang

我觉得是(E)选项写错了，这题核心就是考平行，其他都是trivial。你看OG解释的第一段就详细说了为什么必须是(B).
btw: OG解释精华往往在第一段，关于错误选项的解释经常很敷衍

pattytraine

嗯嗯，OG的解释总有一两句看着不怎么明白！ 谢谢！

masushuang

26. Tropical bats play important roles in the rain forest ecosystem, aiding in the dispersal of cash ...
pattytraine 发表于 2012-8-26 09:15

"这里补充了that be，我不明白的是怎么确定补充的be动词的时态的？"


v-ing本身只是表示progressive，时态取决于所处的句子的时态，也就是“大环境”。


The man talking loudly was Mr. A.   (Mr. A was talking loudly)
The man talking loudly is Mr. A.   (Mr. A is talking loudly)
The man talking loudly will be Mr. A.   (Mr. A will be talking loudly)

"having been killed"道理一样的。
注意：句子的大环境是现在！即我们处在的time frame是现在。那么这句话咱如果正常说，会说：people have been killed ... （从现在的眼光看过去）
那么你把"have been killed"换成noun modifier，就成了"people having been killed"

pattytraine

"这里补充了that be，我不明白的是怎么确定补充的be动词的时态的？"


v-ing本身只是表示progress ...
masushuang 发表于 2012-8-29 06:38

yeah,明白了！ 一致忽略了分词还有不同时态形式。如果说修饰部分存在的时态与整个句子的环境不一致，就要改成that从句
还有像although+ving这样的形式，如果补上be以后，时态不合语境，就不能用ving，分词补上后都成了进行时~

哈哈~太感谢了！