求助：prep模考中和gwd同题不同答案

scarlett8327

今天早上做了套模考，出现了一篇gwd-tn-17的文章。一道主旨题，当初做gwd时我就做错了，所以记得。这次模考，一模一样的题，我就选了gwd的答案。错了。虽然也不是我一直想选的那个答案。

大家帮我看看吧，谢谢了！

文章：

GWD 26-Q7 to Q9

There is no consensus among researchers regarding what qualifies a substance as a pheromone. 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. 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. 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. 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. But while the VNO does process many animal pheromone signals, not all animal pheromones work through the VNO. Conversely, not all chemical signals transmitted via the VNO quality as pheromones. 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.

题目：

Q9: The primary purpose of the passage is to

A.      compare and contrast the ways
        in which the vomeronasal organ
        and the main olfactory systern
        process chemicals.

B.       summarize the debate over the
        role the vomeronasal organ plays in odor perception

C.      present some of the issues
        involved in the debate over
        what constitutes a pheromone

D.      propose a new definition of
        pheromones based on recent
        research

E.       argue that pheromones should be
        classified as a type of odorant

我最初选的是D。但GWD的答案是E。今天做模考时答案为C。

scarlett8327

当初GWD对C的解释是：constitutes用得不好。我也觉得是这样。“There is no consensus among researchers regarding what
            qualifies
            a substance as a pheromone”。这个qualifies和constitutes还是有区别的吧。一个说“什么样的物质才能被称为...”，一个说“什么构成了...”，这个确实不对啊。。。

有哪位大虾有高见？

[此贴子已经被作者于2009/8/1 14:24:48编辑过]

scarlett8327

这个字体大小还真汗- -

scarlett8327

XDJM们快来帮忙丫~~~

theory0616

一直选的都是C 我就说为什么做GWD遇到这题错了。。其实我个人觉得
C present some of the issues involved in the debate over what constitutes a pheromone

E  argue that pheromones should be classified as a type of odorant

我觉得这篇文章里作者并没有argue什么，只是在present很多与pheromone相关的事实、观点、猜想等等。相较而言，C会比较好吧