GWD 26-Q7 to Q9

lewton

4楼其实说对了，9楼说得太复杂,我们先看题目in classifying pheromones as a type of odorant, the researchers referred to in

line 15 posit that，即15行的researchers会同意什么?

 In addition, the distinction

   between pheromones and odorants—

   chemicals that are consciously detected

   as odors---can be blurry, and some

(15) researchers classify pheromones as a

type of odorant.

可以看到,大家公认odorants是consciously detected,而15行的researchers又把pheromones 看成是odorant.的一种,所以说15行的researchers认为pheromones也是consciously detected

will_kk

对,这道确实应该是D,我自己写个文章的架构,希望对后的XDJM有帮助

1.While most agree basic definition, some specify that P should be unconscious. In addition, some think that P&O(conscious) 区别可以blur. 进而some believe that P is a type of O.

2.作者列举了evidence来说明P似乎与O不是一类,(这个应该算预期反对)

3.But(态度转折),尽管VNO……，但是evidence并不全面,不能说明问题。not all chemical signals transmitted via the
        VNO quality as pheromones

snowofjune

what are the answers?

phenomena

仔细看了文章后，Q7还是觉得A是对

hero05

难题啊

hytulip

分析完这道题，有种被解放的感觉

oliver_liu

Feel the same like hytulip

jintian

w

whismanc

thx

vivian0331

这篇文章把我“整”得够呛，所以，我决定仔细研究：

GWD 26-Q7 to Q9

There is no consensus among researchers regarding what qualifies a substance as a pheromone. （背景-关于ph没有定论）While most agree on a basic definition of pheromones as chemicals released by one individual of a species which, when detected by another individual of the same species, elicit a specific behavioral or physiological response, some researchers also specify (10) that the response to pheromones must be unconscious.（背景-most认为ph elicit response，而some 认为ph unconscious。while并列，说明这里没有作者观点或态度强烈转折） In addition, the distinction between pheromones and odorants— chemicals that are consciously detected as odors---can be blurry, and some researchers classify pheromones as a type of odorant. （背景-ph & odorant blurry, some believe ph is odorant）Evidence that pheromone responses may not involve conscious odor perception comes from the finding that in many species, pheromones are processed by the vomeronasal (or accessory olfactory) system, which uses a special structure in the nose, the vomeronasal organ (VNO), to receive chemical signals.（变化-may not involve conscious odor perception，注意这里作者笔锋开始转变） The neural connections between the VNO and the brain are separate from those of the main olfactory system, whose processing of odorants triggers sensations of smell. （论述上面的变化）But while the VNO does process many animal pheromone signals, not all animal pheromones work through the VNO.（观点-转折，not all through VNO, 这意味着有ph的特性与thr. VNO是不同的） Conversely, not all chemical signals transmitted via the VNO quality as pheromones. （观点-不是所有via VNO的都是ph）For example, garter snakes detect a chemical signal from earthworms—one of their favorite foods—via the VNO, and they use this signal to track their prey.(举例support-说实话，我最后这个例子没有看明白，怎么support作者观点了？)

 

分析了这些，我还是晕的，关键点在作者提出观点后，我就找不到odor了，不明白前面odor和后面的VNO部分有什么联系？

分析了这些，我还是晕的，关键点在作者提出观点后，我就找不到odor了，不明白前面odor和后面的VNO部分有什么联系？

难道像前几楼一位NN说的ph也是有odor的？脑子乱了

难道像前几楼一位NN说的ph也是有odor的？脑子乱了

大家再讨论讨论吧。

大家再讨论讨论吧。

[此贴子已经被作者于2009/8/1 0:19:29编辑过]