177. Believed to originate from a small area on their foreheads, elephants emit low-frequency sounds that may be used as a secret language to communicate with other members of the herd. (A) Believed to originate from a small area on their foreheads, elephants emit low-frequency sounds that may be used (B) Elephants emit low-frequency sounds that are believed to originate from a small area on their foreheads, and they may use this (C) Elephants emit low-frequency sounds, believed to originate from a small area on their foreheads, that they may use (D) Originating, it is believed, from a small area on their foreheads; elephants emit low-frequency sounds they may use (E) Originating, it is believed, from a small area on their foreheads, low-frequency sounds are emitted by elephants that may be used C中的believed to为何就不会引起歧义了呢？不会被误认为是修饰elephants吗？如何区分类似情况呢？
Lacking information about energy use, people tend to overestimate the amount of energy used by visible equipment, such as lights, that must be turned on and off and underestimate that used by unobtrusive equipment, such as water heaters.
由于that是限定性从句，因此，前面的","使“believed to originate from a small area on their foreheads”的成分变成了插入语，从而消除了楼主关于“C中的believed to为何就不会引起歧义了呢？不会被误认为是修饰elephants吗？如何区分类似情况呢？”的问题。
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发表于 2003-12-17 05:25:00
