2012年4月4号问题
no4 2 section a
The evolution of intelligence among early large mammals of the grasslands was due in great measure to the interaction between two ecologically synchronized groups of these animals, the hunting carnivores and the herbivores that they hunted. The interaction resulting from the differences between predator and prey led to a general improvement in brain functions; however, certain components of intelligence were improved far more than others.
The kind of intelligence favored by the interplay of increasingly smarter catchers and increasingly keener escapers is defined by attention—that aspect of mind carrying consciousness forward from one moment to the next. It ranges from a passive, free-floating awareness to a highly focused, active fixation. The range through these states is mediated by the arousal system, a network of tracts converging from sensory systems to integrating centers in the brain stem. From the more relaxed to the more vigorous levels, sensitivity to novelty is increased. The organism is more awake, more vigilant; this increased vigilance results in the apprehension of ever more subtle signals as the organism becomes more sensitive to its surroundings. The processes of arousal and concentration give attention its direction. Arousal is at first general, with a flooding of impulses in the brain stem; then gradually the activation is channeled. Thus begins concentration, the holding of consistent images. One meaning of intelligence is the way in which these images and other alertly searched information are used in the context of previous experience. Consciousness links past attention to the present and permits the integration of details with perceived ends and purposes.
The elements of intelligence and consciousness come together marvelously to produce different styles in predator and prey. Herbivores and carnivores develop different kinds of attention related to escaping or chasing. Although in both kinds of animal, arousal stimulates the production of adrenaline and norepinephrine by the adrenal glands, the effect in herbivores is primarily fear, whereas in carnivores the effect is primarily aggression. For both, arousal attunes the animal to what is ahead. Perhaps it does not experience forethought as we know it, but the animal does experience something like it. The predator is searchingly aggressive, innerdirected, tuned by the nervous system and the adrenal hormones, but aware in a sense closer to human consciousness than, say, a hungry lizard’s instinctive snap at a passing beetle. Using past events as a framework, the large mammal predator is working out a relationship between movement and food, sensitive to possibilities in cold trails and distant sounds—and yesterday’s unforgotten lessons. The herbivore prey is of a different mind. Its mood of wariness rather than searching and its attitude of general expectancy instead of anticipating are silk-thin veils of tranquility over an explosive endocrine system.
Endocrine system 内分泌系统
20.
The sensitivity described in lines 56-61 is most clearly an example of
(A) “free-floating awareness” (lines 16-17)
(B) “flooding of impulses in the brain stem” (lines 29-30)
(C) “the holding of consistent images” (lines 31-32)
(D) “integration of details with perceived ends and purposes” (lines 37-38)（D）
(E) “silk-thin veils of tranquility” (line 64)
56-61行指的是哪段，是黄线部分么？
22.
The author provides information that would answer which of the following questions?
I.
Why is an aroused herbivore usually fearful?
II.
What are some of the degrees of attention in large mammals?
III.
What occurs when the stimulus that causes arousal of a mammal is removed?
(A) I only
(B) III only
(C) I and II only
(D) II and III only（C）
(E) I, II and III
2 what are some of the degrees of attention in large mammals?这个问题我没有看懂。请高人翻译一下。
Tocqueville, apparently, was wrong. Jacksonian America was not a fluid, egalitarian society where individual wealth and poverty were ephemeral conditions. At least so argues E. Pessen in his iconoclastic study of the very rich in the United States between 1825 and 1850.
Pessen does present a quantity of (a quantity of: 一些) examples, together with some refreshingly intelligible statistics, to establish the existence of an inordinately wealthy class. Though active in commerce or the professions, most of the wealthy were not self-made, but had inherited family fortunes. In no sense mercurial, these great fortunes survived the financial panics that destroyed lesser ones. Indeed, in several cities the wealthiest one percent constantly increased its share until by 1850 it owned half of the community’s wealth. Although these observations are true, Pessen overestimates their importance by concluding from them that the undoubted progress toward inequality in the late eighteenth century continued in the Jacksonian period and that the United States was a class-ridden, plutocratic society even before industrialization.
26.
The author’s attitude toward Pessen’s presentation of statistics can be best described as
(A) disapproving
(B) shocked
(C) suspicious
(D) amused（E）
(E) laudatory
此题为态度题，答案是E laudatory应该是肯定的态度 但是作者说了一句. Although these observations are true, Pessen overestimates their importance by concluding from them that the undoubted progress toward inequality in the late eighteenth century continued in the Jacksonian period and that the United States was a class-ridden, plutocratic society even before industrialization.
overestimate不是过度估计了么，这样为什么还选肯定的态度？
| 欢迎光临 寄托家园留学论坛 (https://bbs.gter.net/) | Powered by Discuz! X2 |