Hydrocarbons, with which fruit flies perfume themselves in species-specific blends, are known to be important in courtship, and apparently this assists flies that taste the hydrocarbons on prospective mates to distinguish their own species from that of others.
D apparently assisting flies to taste the hydrocarbons on prospective mates to distinguish their own species from those of
E apparently assisting flies that taste the hydrocarbons on prospective mates in distinguishing their own species from
选E不选D是因为D用了to，Hydrocarbons是不能去taste一个东西的
但是在这道题里
Nineteenth-century doctors thought that alcohol, when ingested, passed through the stomach into the bloodstream and was broken down only by the liver; recent studies, however, have led them to conclude that the stomach breaks down up to 20 percent of ingested alcohol before it reaches the liver.
C have led doctors to conclude
E lead to the doctors` conclusion
作者: 老白在费城 时间: 2019-5-7 02:05
我觉得你的思路有点跑偏… 第一题我觉得D错的更在于distinguish their species from those of others. others已经是species了，所以这个those没有指代，所以错。
第二题里面，lead someone to do something 是一个idiom，指的是引导xxx去做一件事情，跟lead前面的主语没有关系。作者: 老白在费城 时间: 2019-5-7 02:06
至于第一题里面的to，更多的是表达了一个objective，会产生歧义，让人觉得xxx assist flies是为了taste xxxx作者: CD用户1380210 时间: 2019-5-7 03:39
嗯嗯 明白了 非常感谢
但是还有一个疑惑的点就是
比如A write a book to emphasize sth里的to应该是表目的，A为了emphasize sth去write a book
但是A lead sb to do sth 并不是 A为了to do sth去lead sb
怎么分辨这两种形式
可能是我做sc太格式化了作者: steven2007 时间: 2019-5-7 03:46
Above two examples you should focus more on idiom:
In the first question, split between D and E is "assist in doing" H blablabla, assisting flies in distinguishing their own species from others. (there are also other defects in E - "those of" no antecedent )
In the second question, studies have led doctors to conclude, idiom "lead to". lead doctors to conclude.
What you may ask here is the function of infinitive verb "to do" , which is another broad topic..作者: 1998JIN 时间: 2019-5-7 08:29
我也经历过你的阶段。。。根据我的经验如果你遇到了一道不符合你总结规则的题目，多半那个规则是错的作者: TracyZhh123 时间: 2019-5-7 09:27
第一题是俗语呀 assist sb in doing 第二个是lead sb to do作者: 核桃英雄 时间: 2019-5-7 10:32
第二题e的the doctors’指的是十九世纪的医生。作者: CD用户1380210 时间: 2019-5-7 10:49
谢谢大家的帮助，可能是做题有些太拘泥于一个点不放了，我有找到另一道题是关于to修饰主语这个问题的
New genetic evidence-together with recent studies of elephants' skeletons, tusks, and other anatomical features-provide compelling support for classifying Africa's forest elephants and its savanna elephants as separate species.
A provide compelling support for classifying
B provide compelling support for the classification of
C provides compelling support to the classification of
D provides compelling support for classifying
E provides compelling support to classify这道题答案是D 因为evidence是不能去classify一个东西的 所以E错
因为这道题DE的split只有for和to，所以用to修饰主语很容易能解决
所以就很不解，为什么一个规则到了另一题上，就完全不同 作者: danyuchn 时间: 2019-5-7 13:50
You are trying to discuss rules that doesn’t even exist.
