Hydrocarbons, with which fruit flies perfume themselves in species-specific blends, are known to be important in courtship, which apparently assists flies that taste the hydrocarbons on prospective mates in being able to distinguish their own species from others.
语法 Sentence Correction-4223
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正确的用户笔记
lillian4cat 2014-09-06 12:14:00
which不能用于指代前句描述的事情，没有指代对象;in being able to罗嗦
ypheroin 2016-01-17 22:36:10
assist 的逻辑主语是HCBN，which无法指代hcbn
Naraoo 2015-07-22 16:58:11
是hydrocarbon assist 而不是 courtship assist
糯米团子QUQ 2016-10-02 11:17:05
【本题考察assist的发出者问题】主句完全不在划线范围内，第一条主线的考点基本落空。【我的问题】假如要看重心，你也要看assist的发出者是谁，如果不是H，当然不能在后半句当谓语动词。此处assist的主语是前面整件事情而不是H，所以是【本题考察assist的发出者问题】。另外，从逻辑上理解，H很重要是因为能帮助XXX……（此处assist是因，而非果）。which指代courtship，轻松排除。另，this/that不要单独使用，排除AB。
snow199511 2016-06-22 20:37:45
1. which = courtship， 改变句子原有的意义 2. Being able to
yiiiiiiiiii 2016-03-07 11:42:59
根据assists判断，which指代单数，只能是courtship，逻辑错误。
BobZ 2015-12-19 13:59:33
which、this不能用于指代前句描述的事情
