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标题: PREP2 - 83 求解(一道PREP笔记未包括的题) [打印本页]

作者: cameo8 时间: 2007-6-5 18:16
标题: PREP2 - 83 求解(一道PREP笔记未包括的题)

83. (28949-!-item-!-188;#058&004110)

The number of plant and animal species that humans are known to have forced to extinction in the last half millennium is over 800.

(A) humans are known to have forced to extinction

(B) humans are known as having forced to become extinct

(D) are known that humans forced to become extinct

(E) are known as having been forced to extinction by humans

正确答案 A

请大家帮忙解释一下...

[此贴子已经被作者于2007-6-5 20:31:51编辑过]

作者: cameo8 时间: 2007-6-5 18:20
标题: 回复：（cameo8）PREP2 - 83 求解(一道PREP笔记未包括...

(A) humans are known to have forced (that) to extinction?

(B) humans are known as having forced to become extinct

(D) are known that humans forced to become extinct

(E) are known as having been forced to extinction by humans

(B),(E)错在as不能引导从句?

(E)是不是还存在歧义,known by humans or forced by humans?

作者: carolinelmf 时间: 2007-6-5 18:53

黄金法则as后只能接句子，非短语哟~

作者: cameo8 时间: 2007-6-5 20:31

谢谢 carolinelmf! 记住了~呵呵

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