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[求助]最新的GWD28-1阅读

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11#
发表于 2005-7-17 23:48:00 | 只看该作者
这个据楼主说,是新东方老师提供的。
12#
发表于 2005-7-18 12:42:00 | 只看该作者

28-3: The primary purpose of the passage is to discuss the


A: techniques used in certain experiments on social learning in birds          细节


B: reasons for the differences between social learning in birds and in mammals            无或细节



C: question of how social learning manifests itself in birds            非重点



D: basis for a widespread belief about a difference in behavior between birds and mammals。不仅仅指出其理论基础,还有反例来反驳该说法。



E: possible reasons why birds may or may not learn from each other in a particular way 有此内容



此题我虽然最终选择E。但有几点考虑使我不能确认D是否更好些,在此说明一下供大家参考:1、basis for a widespread belief 里的basis也应可以包括对belief正反两种态度的内容。也基本可接受。2、a difference in behavior between birds and mammals只是说这是a widespread belief 的内容,并不代表此选项就认为birds and mammals之间存在不同。3、E选项中的possible reasons有点倾向于具体内容了,不太宏观。


13#
发表于 2005-8-5 11:03:00 | 只看该作者

But Sherwin's recent (50) experiments with domestic hens do not support the notion that avian social learning necessarily facilitates aversion to novel (55) foods that are noxious or toxic. Even when demonstrator hens reacted with obvious disgust to a specific food, via vigorous head (60) shaking and bill wiping, there was no evidence that observers subsequently avoided eating that food. Sherwin's research team speculated that ecological or social constraints during the evolution of this species might have resulted in there being little benefit from the social learning of atability, for instance, selective pressures for this mode of learning would be reduced if the birds rarely encountered noxious or toxic food or rarely interacted after eating such food, or if the consequences of ingestion were minimal. (80) In a related experiment the same researchers showed that if observer hens watched demonstrator hens react favorably to food of a particular color, then observer hens ate more food of that color than they ate of food of other colors. These results confirmed that avian species can develop preferences for palatable food through social learning.



28-5: According to the passage, which of the following is true of the experiments on domestic hens conducted by Sherwin’s research team?


A: Only a small number of observer hens appeared to learn to avoid food that was demonstrated by other hens to be noxious.


B: Observer hens ingested food preferentially only after numerous instances of witnessing demonstrator hens preferentially ingest that type of food.


C: Observer hens appeared unable to recognize when demonstrator hens found a particular food especially palatable.


D: Observer hens appeared unable to recognize when demonstrator hens found a particular food especially palatable.


E: Demonstrator hens altered their behavior less obviously in response to noxious foods than in response to highly palatable foods.



看上面的讨论,大家都觉得选E,可是我不明白怎么从文中得出E是正确的呢,多谢NN指点!


另外这个题C,D答案给的是一样的,是不是其中有可能有个是正确。


[此贴子已经被作者于2005-8-5 11:05:10编辑过]
14#
发表于 2005-8-5 19:56:00 | 只看该作者

28-5的E肯定错,因为主语是demonstrator,应该是C、D中的一个,估计最后的palatable改成noxious


另外,对于28-3,做的时候选了E,但现在琢磨半天,觉得似乎C更有道理,


大家继续


15#
发表于 2005-8-5 20:15:00 | 只看该作者

28-3我做题时选的C,可是后来看了讨论更迷糊,不知道该选C还是E了


E: possible reasons why birds may or may not learn from each other in a particular way


似乎更侧重第二段的内容

16#
发表于 2005-8-18 10:44:00 | 只看该作者
支持E,*,E,E
17#
发表于 2005-8-18 11:54:00 | 只看该作者

3C


5没答案


6E


55555,怎么跟大家都不一样。。。

18#
发表于 2005-8-25 20:46:00 | 只看该作者

补充一下,第5题的D选项并非和C选项一样,D选项是这样的


D. Demonstrator hens reacted adversely to ingesting certain novel foods.


我个人觉得D比E好。E的问题在于,原文只提到了hens对noxious food的反映,并没有明确提到对palatable foods的反映,因此这样的比较更是原文不能支持的。


而D正确,因为原文第56行到第60行明确指出hens‘acted with obvious disgusts.....'


请指正。

19#
发表于 2005-8-25 20:51:00 | 只看该作者

另外,我觉得第3题可能C更好一点。对于E,文章只在第三段提到关于hens对noxious foods没有反应的解释,但没有关于对palatable foods有反应的解释;而且这种解释只是局部的内容,而文章作为一个整体,要表达的主要内容是social learning在birds中的不同表现,在一些鸟中表现为对noxious foods有反应,在hens中虽然对noxious foods没有反应,但对palatable foods是有反应的,C更好的概括了文章更多的内容,所以我觉得C比E好。


请指正!

20#
发表于 2005-8-26 03:55:00 | 只看该作者

The answers given by XDF instructor were C E E

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