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托福阅读修辞目的题：Buck Rubs

2015-08-13 16:23:09来源：网络

　　【托福阅读题型：Buck Rubs修辞目的题】托福阅读中句子插入题是重要题型之一。根据托福阅读题型不同来进行专项练习，是短期提高托福阅读能力的有效方法。同学们需要多加练习哦!

　　查看全部：托福阅读题型分类练习之修辞目的题

　　托福阅读修辞目的题：Buck Rubs

　　【Paragraph 4】Forehead rubbing by male deer on buck rubs presumably sends a great deal of information to other　　members of the same species. First, the chemicals deposited on the rub provide information on the individual identity of　an animal; no two mammals produce the same scent. For instance, as we all know, dogs recognize each other via smell.　Second, because only male deer rub, the buck rub and its associated chemicals indicate the sex of the deer producing　　the rub. Third, older, more dominant bucks produce more buck rubs and probably deposit more glandular secretions on a　　given rub. Thus the presence of many well-marked rubs is indicative of older, higher-status males being in the general　vicinity rather than simply being a crude measure of relative deer abundance in a given area. The information conveyed　by the olfactory signals on a buck rub make it the social equivalent of some auditory signals in other deer species, such　　as trumpeting by bull elk. (Buck Rubs and Buck Scrapes)

　　Why does the author mention that “dogs recognize each other via smell”?

　　○ To point out the similarities between dogs and deer

　　○ To argue that animals communicate through scent rather than through vision

　　○ To support the claim that the scent of a buck rub serves to identify its maker to other deer

　　○ To suggest that buck rubs can be detected by other species

　　答案见下一页：

本文关键字: 托福阅读题型 托福阅读训练 修辞目的题

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