2. 考研
  3. Susceptible from which A. when removed (62)______a half finished home B. during a period of infancy in (63)______vaguer instinct

Susceptible from which A. when removed (62)______a half finished home B. during a period of infancy in (63)______vaguer instinct

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问题 Susceptible from which
A. when removed (62)______a half finished home
B. during a period of infancy in (63)______vaguer instincts than those of the insects
were molded
C. It is in being thus (64)______to the environment
    By education, I mean the influence of the environment upon the individual to produce a permanent change in the habits of behavior, of thought and of attitude. (65)______that man differs from the animals, and the higher animals from the lower. The lower animals are influenced by the environment but not in the direction of changing their habits. Their instinctive responses are few and fixed by heredity. When transferred to an unnatural situation, such an animal is led astray by its instincts. Thus the "ant-lion" whose instinct implies it to bore into loose sand by pushing backwards with abdomen, goes backwards on a plate of glass as soon as danger threatens, and endeavors, with the utmost exertions to bore into it. It knows no other mode of flight, "or if such a lonely animal is engaged upon a chain of actions and is interrupted, it either goes on vainly with the remaining actions (as useless as cultivating an unsown field) or dies in helpless inactivity" . Thus a net-making spider which digs a burrow and rims it with a bastion of gravel and bits of wood, (66)______, will not begin again, though it will continue another burrow, even one made with a pencil.
    Advance in the scale of evolution along such lines as these could only be made by the emergence of creatures with more and more complicated instincts. Such beings we know in the ants and spiders. But another line of advance was destined to open out a much more far-reaching possibility of which we do not see the end perhaps even in man. Habits, instead of being born ready-made (when they are called instincts and not habits at all), were left more and more to the formative influence of the environment, of which the most important factor was the parent who now cared for the young animal (67)______to suit surroundings which might be considerably changed without harm.
选项
答案A
解析 根据语境可知，空格所在句的意思为：因此当蜘蛛挖了一个地洞并且在地洞边缘用砂砾和木片修建蛛网时，如果它离开了已经结了一半的网，则无论如何也不会再从头开始，尽管它也许会继续挖另一个洞穴，甚至是用铅笔作为原料，但也不会重复以前的工作。所以，A项符合题意。
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