扫描二维码，直接登录
题库 / OG12-CR-21
Male bowerbirds construct elaborately decorated nests, or bowers. Basing their judgment on the fact that different local populations of bowerbirds of the same species build bowers that exhibit different building and decorative styles, researchers have concluded that the bowerbirds' building styles are a culturally acquired, rather than a genetically transmitted, trait.
Which of the following, if true, would most strengthen the conclusion drawn by the researchers?
There are more common characteristics than there are differences among the bower-building styles of the local bowerbird population that has been studied most extensively.
Young male bowerbirds are inept at bower-building and apparently spend years watching their elders before becoming accomplished in the local bower style.
The bowers of one species of bowerbird lack the towers and ornamentation characteristic of the bowers of most other species of bowerbird.
Bowerbirds are found only in New Guinea and Australia, where local populations of the birds apparently seldom have contact with one another.
It is well known that the song dialects of some songbirds are learned rather than transmitted genetically.
果：male bird筑巢，
因：文化形成（后天学习），不是遗传。
加强：削弱遗传的可能性（指出反例），加强后天学习的情况（B）
a 被研究的当地鸟的population的相同点比不同点多（无关）
b 雄性鸟是看了长辈很久以后才学会的这种筑巢方式（保留，提到了是后天学习）
c 某一种鸟和大多数的鸟建筑风格不相同（虽然看上去好像有理，但是某一种是哪种？大多数都是一样的反而支持了是先天性的，不选）
d 这种鸟只在那里和那里发了，并且他们很少交流（没有交流，风格又不一样，有可能是基因，又有可能是文化，说不清，不选）
e 无关选项
注意，一定要看到这个重点“culturally acquired“ 这个表明是文化熏陶，文化习得的。关键是”习得“而”文化“是用来修饰”习得“的。看到”习得“很自然就选B
∵同种类，不同群的localB鸟建的窝不一样
∴B鸟的建筑风格后天习得，而非基因（遗传）特点
加强因果链条
A、localB鸟建筑风格相似之处比不同多，无关，甚至反原文
B、年轻的B鸟在形成风格前，经常看年长的B鸟，证明是学来的，CORRECT
C、B鸟的一个小种类的bower和其他种类的不一样，无关
D、local的B鸟之间联系少，削弱
E、S鸟通过学习而非基因遗传唱歌，无关
是学习的而不是遗传的！ B说花几年看年长的做，证明了他们是后天学习而来的。
genetically 不是 generally...
+1！看了你的评论才发现自己也看错了...登录 或 注册 后可以参加讨论
inept，不能够，笨拙地
elders，长者
choice b, 年轻的鸟对于筑巢很笨拙，它们会花几年的时间观察年老的鸟直到精于筑巢
choice c, 一种bowerbirds缺少其他大部分品种的bowerbirds所特有的tower等特征-> weaken, 说明有可能筑巢能力就是基因携带的
choice d, bowerbirds只在某地被发现，当地鸟很少和另一只鸟接触-> weaken
choice e, songbirds 学习唱歌通过基因传递。irrelevant，无法保证songbird和Bowerbirds可以类比
不认识不影响做题登录 或 注册 后可以参加讨论
D does not say anything about the styles of the local populations...’‘
B，inept笨拙的，accomplished 熟练的，说明是在acquire的一个过程。
to either cultural acquisition or genetic transmission, so the conclusion is not strengthened.
B Correct. Compared with the other options, this information provides the most additional
support for the researchers’ conclusion.