托福tpo阅读真题及译文：role of play in development.pdf

智 课 网 托 福 备 考 资 料托福TPO阅读真题及译文：Role of Play inDevelopment托福 TPO阅读真题：Role of Play in Development 第一段： 托福TPO阅读原文： Play is easier to define with examples than with concepts. In any case, in animals it consists of leaping, running, climbing, throwing, wrestling, and other movements, either along, with objects, or with other animals. Depending on the species, play may be primarily for social interaction, exercise, or exploration. One of the problems in providing a clear definition of play is that it involves the same behaviors that take place in other circumstance—dominance, predation, competition, and real fighting. Thus, whether play occurs or not depends on the intention of the animals, and the intentions are not always clear from behaviors alone. 托福TPO阅读翻译：用例证来定义玩耍要比用概念简单得多。

在任何情况下，动物间的 玩耍都包括跳跃，奔跑，攀登，投掷，格斗和另外的一些动作，而玩耍 的对象可能有其它物品或者动物根据物种的不同，玩耍的目的主要包 括社交，锻炼，或探索定义“玩耍”的难点之一是，玩耍过程中常常 包含一些与其它情况下相似的行为，例如统治，捕食，竞争和搏斗因 此，判断其是否玩耍，要根据动物的目的来确认，而常常通过行为本身 很难分析其目的 第二段： 托福TPO阅读原文： Play appears to be a developmental characteristic of animals with fairly sophisticated nervous systems, mainly birds and mammals. Play has been studied most extensively in primates and canids (dogs). Exactly why animals play is still a matter debated in the research literature, and the reasons may not bethe same for every species that plays. Determining the functions of play is difficult because the functions may be long-term, with beneficial effects not showing up until the animal's adulthood. 托福TPO阅读翻译： 玩耍似乎是那些有着相对复杂的神经系统的动物，主要是鸟类和哺 乳动物，的一个发育，发展的特征。

玩耍的大量研究主要在灵长类和犬 类中进行动物到底为什么要玩耍仍然在文献中存在争议，并且每种物 种玩耍的原因也不尽相同确定玩耍的功能很难，因为它的功能是长期 的，伴随着一些直到动物成年才会显现出来的有利影响哦~ 第三段： 托福TPO阅读原文： Play is not without considerable costs to the individual animal. Play is usually very active, involving movement in space and, at times, noisemaking. Therefore, it results in the loss of fuel or energy that might better be used for growth or for building up fat stores in a young animal. Another potential cost of this activity is greater exposure to predators since play is attention-getting behavior. Great activities also increase the risk of injury in slipping or falling. 托福TPO阅读翻译：玩耍对于动物个体并非没有一定的代价。

玩耍通常是非常活跃的， 包括一些动作，有时也会发出声音所以，这些都会导致一些年幼的动 物的本来可以用来生长或者储存脂肪的能量流失另一个潜在的代价是 玩耍增加了动物暴漏给天敌的几率，因为这些多动是吸引注意的行为 大量的运动也会增加摔倒滑倒导致受伤的危险 托福TPO怎么用才最高效？托福阅读如何拿高分？ >> 戳我获得名师解答 第四段： 托福TPO阅读原文： The benefits of play must outweigh costs, or play would not have evolved, according to Darwin' s theory. Some of the potential benefits relate directly to the healthy development ofthe brain and nervous system. In one research study, two groups of young rats were raised under different conditions. One group developed in an “enriched“ environment, which allowed the rats to interact with other rats, play with toys, and receive maze training. The other group lived in an “impoverished“ environment in individual cages in a dimly lit room with little stimulation. At the end of the experiments, the results showed that the actual weight of the brains of the impoverished rats was less than that of those raised in the enriched environment (though they were fed the same diets). Other studies have shown that greater stimulation not only affects the size of the brain but also increase the number of connections between the nerve cells. Thus, active play may provide necessary stimulation to the growth of synaptic connections in the brain, especially the cerebellum, which is responsible for motor functioning and movements. 托福TPO阅读翻译：根据达尔文理论，玩耍的好处一定超过其损失，不然玩耍就不会得 以进化。

其中一些潜在的好处就是直接关于动物的大脑和神经系统的健 康发展在一项研究中，两组小鼠被养在不同的环境中第一组成长在 一个比较“富裕”的环境中，这样的环境使其可以与其他老鼠接触，和 玩具玩儿，并且接受迷宫训练另一组生活在“穷困”的环境中，它们 被养在独立笼子里，只有微弱的光照和极少的刺激最后，结果表明生 活在单一环境中的老鼠的大脑重量要比生活在复杂情况下的老鼠的大脑 轻（即使它们被喂养的食物一样的）另外一些研究表明，较大的刺激 不仅会影响大脑的大小，而且也会增加神经细胞间连接的数量因此， 活跃的玩耍可以为大脑中的突触连接提供必要的刺激，特别是负责运动 机能的小脑 第五段： 托福TPO阅读原文： Play also stimulates the development of the muscle tissues themselves and may provide the opportunities to practice those movements needed for survival. Prey species, like young deer orgoats, for example, typically play by performing sudden flight movements and turns, whereas predator species, such as cats, practice stalking, pouncing, and biting. 托福TPO阅读翻译： 玩耍也会刺激肌肉组织的生长，并能提供练习生存技能的机会。

被 捕食者，比如小鹿或者山羊，其典型的玩耍动作就是突然快速跳跃和转 弯，相反捕食者，比如猫科动物，则练习潜行追踪，猛扑和撕咬 第六段： 托福TPO阅读原文： Play allows a young animal to explore its environment and practice skill in comparative safety since the surrounding adults generally do not expect the young to deal with threats or predators. Play can also provide practice in social behaviors needed for courtship and mating. Learning appropriate social behaviors is especially important for species that live in groups, like young monkeys that needed to learn to control selfishness and aggression and to understand the give-and-take involved in social groups. They need to learn how to be dominant and submissive because each monkey might have to play either role in the future. Most of these things are learned in the long developmental periods that pri。