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Cats have the widest hearing range of nearly any mammal”not only can they perceive sound in what we define as the “ultrasonic” range, they can also appreciate all the bass Dr Dre can throw at them. They can swivel their whiskers forwards while hunting to provide a kind of short-range radar.And they can see exceptionally well in the dark thanks to a reflective surface behind the retina that bounces lightback, giving it a second chance to hit a photoreceptor. They see more distinct images per second than we do.
Dog partisans will appeal to the dog’s allegedly superior intelligence — though if that were the primary criterion for choosing a pet, one would expect to see a lot more crows and squid on leads around town. In fact, cats are rather cleverer than commonly assumed, as the biologist and animal-behaviour expert John Bradshaw shows in his new book.They can even be trained to an extent which was news to me Bradshaw’s book mixes pellets of cat lore with accounts of feline evolution, anatomy, genetics and development from newborn kitten to adulthood, plus descriptions of cat-psychology experiments in the laboratory, many of which he has conducted himself. Some of the most interesting parts indicate holes in our current scientific knowledge. “Many mother cats try to move their litters at least once before they wean them,” he observes, “but science has yet to find out why”. No one knows why cats go crazy for catnip, nor why they are able “to classify shapes according to whether they are closed or open.” Kittens, meanwhile, “may also use special movements of their tails to signal playfulness, but so far no scientist has been able to decode these”. As far as potential research projects go, decoding the tail-language of playing kittens must be about the interesting unsolved problem in science.
The cat is an apparently phlegmatic beast, but Bradshaw points out that cats experience strong emotions, and sometimes might be suffering in silence. They aren’t particularly sociable, and cats who are housed with others who weren’t litter-mates — perhaps by well-meaning owners who think they need the company — can become chronically stressed.
Luckily, then, cats probably aren’t aware that today they are once again hate-figures, the furry target of spittle-spraying ecologists who, armed with dodgy statistics, accuse cats of wildly “murdering” all the country’s songbirds. It’s a bit more complicated than that,Bradshaw shows. Rats also kill songbirds, and cats keep their numbers down; while the RSPB says the disappearance of habitat is a far more important factor in the decline of songbird populations than predator numbers. But we could at least, Bradshaw suggests, reverse the counterproductive selection pressure we currently exert on the domestic cat when we neuter house cats before they reproduce. This means,he explains, that the “friendliest, most docile” cats are prevented from leaving any descendants, while wild cats —which are more suspicious of humans and better at hunting— will leave more offspring. Unintentionally, we are causing cats to evolve into animals society won’t like as much
Cat-haters probably won’t appreciate this book, but anyone else might. It is written in a friendly and engaging way, has helpful tips for cat owners, and is packed with excellent cat facts. Why, you might have wondered, do cats get stuck up trees? Because all their claws face forwards, so none can be used as brakes on the descent. We all know how good cats are at twisting mid-air to land on their feet,but they have an even more impressive trick: some cats adopt a “parachute” position during a long fall, with all four legs stuck out to the side, before coming back to the landing position at the last moment. This cat-parachute pose,Bradshaw calculates, “limits the falling speed to a maximum of fifty-three miles an hour” so enabling some cats to fall from high-rise buildings and walk away unhurt. I’d like to see a dog try that.
Which of the following is closest in meaning tothe underlined word “phlegmatic” in Paragraph 4?
本题可定位到第四段第一句。该句中的but 和 strong emotions 是解题点，but 表示转折关系，所以可猜测 phlegmatic 的词义和 strong emotions 相反，A 项意为“孤独的”；B 项意为“感情冲动的”，和 strong emotions 同义；C 项意为“闷闷不乐的”；D 项意为“冷静的”。结合选项，可确定答案为 D。
阅读下面材料，根据要求完成教学设计。
要求：请根据思想政治辩论式教学的相关要求，结合教学内容设计一个辩题，并围绕该辩题设计教学活动简案。
下面是某思想政治教师制作的课前5分钟学生时政演讲评价量表。
材料：下面是某思想政治老师关于“国际关系的决定性因素”的教学设计片段。
问题：请运用思想政治课教学理论，对本教学片段中问题设置的优缺点进行评析，并针对问题设置存在的缺陷提出修改建议。
良好的开头是成功的一半。为提高课堂教学的有效性，思想政治课教师在导人时应遵循哪些基本要求
当前学术界有很多理论观点，争论很大。面对不同的学术观点，是应该据理力争、坚持己见，还是应该尊重差异、包容互鉴。请你从中选择一个观点并从认识论角度阐述你选择的理由。
法律对其生效以前的事件和行为是否适用，称为()。
某村民为盖房欲去山上砍伐几棵国有林木。其儿子说，未经许可去砍伐国有林木是违反森林法的。村民听从了儿子的劝导，打消了砍伐的念头。该事例体现了法的功能是()。
近年来，某省先后建造了约1705家重点农村文化礼堂，为农民打造精神家园．让其在“身有所栖”后“心有所寄”。这表明()。
①文化与经济相交融
②任何精神产品都离不开物质载体
③文化促进社会和谐
④政府重视农民基本文化需求的满足
三角形内角和的求证方式很多，其中一种是通过顶点做平行辅助线，根据平行线内错角相等原理求证出三角形内角和为180度。该求证过程实际上就是()。
从2016年1月1日开始，全国正式实施全面二孩政策。专家认为全面二孩可以缓解消退的人口红利。我国调整人口政策，是因为()。
①人口状况变化的客观物质性
②生产方式必须与我国的人口政策相适应
③人口状况可以加速或延缓社会发展进程
④人口的生产和再生产是历史过程的决定因素
