ffice" />264. Scientists believe that unlike the males of most species of moth, the male whistling moths of Nambung, Australia, call female moths to them by the use of acoustical signals, but not olfactory ones, and they attract their mates during the day, rather than at night.
(A) by the use of acoustical signals, but not olfactory ones, and they attract
(B) by the use of acoustical signals instead of using olfactory ones, and attracting
(C) by using acoustical signals, not using olfactory ones, and by attracting
(D) using acoustical signals, rather than olfactory ones, and attract
(E) using acoustical signals, but not olfactory ones, and attracting
Choice D, the best answer, is concise, maintains parallel structure, and clearly conveys the comparisons being made between the two types of moth. In A and E, the comparison between most male moths and the male whistling moth is not clear. The use of but not does not clearly convey that most other moths use olfactory signals; rather than would be preferable, as well as parallel to rather than at night. In A, the phrase by the use of is unnecessarily wordy, and the insertion of they is not required. In E, the final verb should be attract (parallel to call), not attracting (parallel to using). Choice B violates parallelism with by the use of... instead of using, as well as with call... and attracting. Choice C distorts the meaning of the original with its suggestion that male whistling moths call female moths to them both by using acoustical signals and by attracting their mates during the day. The insertion of using in not using olfactory ones is unnecessary.
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请指教呵~~快不好意思问了
OG是讲说unlike the males of most species of moth, the male whistling moths of Nambung, Australia, .......... but not olfactory ones
一般but当连词(即逗号+but), 在一般情况下, 通常当主语but后面的N当主语, 造成如OG所说的比较关系不对等....
大家说的都没错
我在把她搞简单点
call female moths to them by the use of acoustical signals, but not olfactory ones, and they attract their mates during the day, rather than at night.
单看这个句子
A but not B
并列比较的对象 为 female moths 杠上 olfactory ones
还原句意 为
call female moths to them by the use of acoustical signals, but not call olfactory ones to them by the use of acoustical signals,
或是 好看一点的句子为
call female moths but not olfactory ones, to them by the use of acoustical signals～～
这样的句意 非常的吊诡 吧 单然是错误选项噜
解决了这一层之后 不知版主对于 and attract 的部分是否还有疑惑 ??
若有 咱们再来讨论呗
今天mouse 非常不听话 气气气!!!
en....
In A and E the comparison between most male moths and the male whistling moth is not clear Because The use of but not (in A and E) does not clearly convey that most other moths use olfactory signals.
想了欧半天。
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