[英语励志短文]英语励志短文 Whether sixty or sixteen, there is in every human being's heart the lure of wonders, the unfailing childlike appetite of what's next and the joy of...+阅读
简单的英语短文
Sleep is very ancient. In the electroencephalographic sense we share it with all the primates and almost all the other mammals and birds: it may extend back as far as the reptiles. There is some evidence that the two types of sleep, dreaming and dreamless, depend on the life-style of the animal, and that predators are statistically much more likely to dream than prey, which are in turn much more likely to experience dreamless sleep. In dream sleep, the animal is powerfully immobilized and remarkably unresponsive to external stimuli. Dreamless sleep is much shallower, and we have all witnessed cats or dogs cocking their ears to a sound when apparently fast asleep. The fact that deep dream sleep is rare among prey today seems clearly to be a product of natural selection, and it makes sense that today, when sleep is highly evolved, the stupid animals are less frequently immobilized by deep sleep than the smart ones. But why should they sleep deeply at all? Why should a state of such deep immobilization ever have evolved? Perhaps one useful hint about the original function of sleep is to be found in the fact that dolphins and whales and aquatic mammals in general seem to sleep very little. There is, by and large, no place to hide in the ocean. Could it be that, rather than increasing an animal's vulnerability, the function of sleep is to decrease it? Wilse Webb of the University of Florida and Ray Meddis of London University have suggested this to be the case. It is conceivable that animals who are too stupid to be quiet on their own initiative are, during periods of high risk, immobilized by the implacable arm of sleep. The point seems particularly clear for the young of predatory animals. This is an interesting notion and probably at least partly true. 睡眠的进化 睡眠是古老的。
从脑电图上看,我们人类和所有灵长目动物以及几乎所有的哺乳动物 和鸟类都一样需要睡眠;甚至爬行类动物也有睡眠。 有证据显示,有梦睡眠和无梦睡眠这 两种类型的睡眠取决于该动物的生活方式。 从统计上看,食肉动物比被捕食动物有更多的 有梦睡眠,而被捕食动物更多地无梦睡眠。 动物在有梦睡眠时,被有效地解除动作能力, 并且对外界刺激缺乏反应。 无梦睡眠则要浅得多。 我们都看到过猫和狗在显然的酣睡中, 有一点响动耳朵就会竖起来。 被捕食动物很少有深度的有梦睡眠,这看来显然是自然选择 的结果。 而且这一点是有道理的:当睡眠高度进化以后,愚笨的动物比聪明的动物更少在 深度睡眠状态下丧失动作能力。 但是动物为什么要进入深度睡眠呢?为什么这样的无动作状 态也会进化出来呢? 海豚、鲸鱼以及水生哺乳动物睡眠都极少,这一事实可以给睡眠的根本 功能提供有用的线索。
海洋中是没有藏身之处的。 会不会是这样,睡眠不但不增加动物受 伤害的可能性,反而是减少了这种可能性呢?佛罗里达大学的 Wilse Webb 和伦敦大学的 Ray Meddis 认为情况就是如此。 可以想像得出,在危险的时刻,那些由于太愚笨而不能自动保 持安静的动物,会不由自主地变得动弹不得。 这一点在食肉动物的幼兽身上表现得特别明 显。 这是一个很有意思的看法,它至少部分是正确的
谁帮我写一些简单的英语短文
My favourite season My favourite season is summer. I often wear my shorts and T-shirt. Sometimes I wear my jeans. In summer it is often sunny and hot. Sometimes rainy in summer. I usually swim with my father. Sometimes I eat ice-cream at home. My Chinses Teacher I have a Chinses Teacher. Her name is Lui Xiaohong. She is from Lanchang. She's very active and strict. She has two big eyes. She's very nice.But she is short. She like to smile. I don't know what season she like. Because I don't know her very well. Her class is very funny, I like
英语小短文简单好记的
In the traffic court of a large mid-western city, a young lady was brought before the judge to answer a ticket given her for driving through a red light. She explained to his honor that she was a school teacher and requested an immediate disposal of her case in order that she might hasten on to her classes. A wild gleam came into the judge's eye. "You are a school teacher, eh?" said he. "Madam, I shall realize my lifelong ambition. Sit down at that table and write 'I went through a red light' five hundred times."在中西部一个大城市的交通法庭里,一位年轻女士被带到法官面前,她由于开车闯红灯被开了罚单。女士向法官解释,她是一名学校老师,请求法官马上处理她的案子,以便可以赶回去上课。法官眼中闪过一丝狡黠,说道:“你是学校的老师,对吗?女士,我马上要实现我毕生的愿望了。
在那张桌子旁坐下,写‘我开车闯了红灯’500遍。
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