放狗：3篇阅读+2道觉得很奇怪的sc

qwq_

发表于 2018-09-26 09:45:35
第一篇阅读：复活岛石像（半屏）
文章提出运送石像的两种理论。
第一段说是roll（滚动）运送的，...

同意！

hhh又胖了

感谢分享！               

Vina_Fighting

It has been argued that social learning helps animals either avoid noxious substances or identify food items, but evidence suggests that avian social learning is fundamentally different from that of mammals. In two experiments, we investigated whether the preferences of domestic hens, Gallus g. domesticus, for novel food were influenced by observing the feeding behaviour of conspecifics. In experiment 1, we attempted to confirm that birds can develop socially learnt aversions to unpalatable foods. Despite demonstrators showing a highly visible ‘disgust reaction’ after eating unpalatable coloured food, observers did not develop aversions to similarly coloured food. In experiment 2, we aimed to determine whether preferences for palatable food were socially learnt, and whether the extent of a demonstrator's preference for novel food affected the magnitude of the observer's socially learned preference. Demonstrators ate coloured food of standard or high palatability, or did not peck food at all. When the demonstrators pecked more frequently or fed more quickly from the food, the observers consumed a greater proportion of food of the same colour; however, this was only when the food was red, not green. We argue this indicates an unlearned aversion to red food, overcome by social learning of the food being highly palatable. The results provide no evidence that adult hens learn aversions through observing disgust reactions, but show that hens are sensitive to the extent of demonstrator preferences for palatable food. The data do not support the hypothesis that avian social learning is fundamentally different from that of mammals.

po看看是原文吗

Vina_Fighting

bzy! 发表于 2018-9-26 11:01
https://gmatclub.com/forum/social-learning-in-animals-is-said-to-occur-when-direct-or-indirect-so-21 ...

可能是这个：

It has been argued that social learning helps animals either avoid noxious substances or identify food items, but evidence suggests that avian social learning is fundamentally different from that of mammals.

In two experiments, we investigated whether the preferences of domestic hens, Gallus g. domesticus, for novel food were influenced by observing the feeding behaviour of conspecifics. In experiment 1, we attempted to confirm that birds can develop socially learnt aversions to unpalatable foods. Despite demonstrators showing a highly visible ‘disgust reaction’ after eating unpalatable coloured food, observers did not develop aversions to similarly coloured food. In experiment 2, we aimed to determine whether preferences for palatable food were socially learnt, and whether the extent of a demonstrator's preference for novel food affected the magnitude of the observer's socially learned preference. Demonstrators ate coloured food of standard or high palatability, or did not peck food at all. When the demonstrators pecked more frequently or fed more quickly from the food, the observers consumed a greater proportion of food of the same colour; however, this was only when the food was red, not green. We argue this indicates an unlearned aversion to red food, overcome by social learning of the food being highly palatable. The results provide no evidence that adult hens learn aversions through observing disgust reactions, but show that hens are sensitive to the extent of demonstrator preferences for palatable food. The data do not support the hypothesis that avian social learning is fundamentally different from that of mammals.

PWgg

Vina_Fighting 发表于 2018-9-26 12:10
可能是这个：

It has been argued that social learning helps animals either avoid noxious substance ...

应该不是这个。
记得很清楚是只做了一个实验，只是关于鸡吃novel foods。
一个实验，两种解释。

第二段只是稍微提了一下不能通过观察达成学习。

个人认为重点完全集中在第一段啦。

而且这篇文章基本没有生词，也很短，所以不用太担心啦。

Mozeee

楼楼有木有数血狗

华山君子剑

如果是some of documents这样子的话是可以指代of后面的名词的吧

szuzhang

感谢楼主大好人！

sechare

楼主你sc的第一题我也做到了，当时满头黑人问号啊。。。

buzaoai

感谢楼主，请问还记得作文吗？