2018官方GRE真题解析_GRE阅读真题解析二_雷哥GRE

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By 1950, the results of attempts to relate brain

          processes to mental experience appeared rather

          discouraging. Herring suggested that different modes of

Line   sensation, such as pain, taste, and color, might be

5       correlated with the discharge of specific kinds of nervous

energy. However, subsequently developed methods of

recording and analyzing nerve potentials failed to reveal

any such qualitative diversity. Although qualitative

variance among nerve energies was never rigidly

10     disproved, the doctrine was generally abandoned in favor

of the opposing view, namely, that nerve impulses are

essentially homogeneous in quality and are transmitted as

―common currency‖ throughout the nervous system.

According to this theory, it is not the quality of the

15     sensory nerve impulses that determines the diverse

conscious sensations they produce, but rather the different

areas of the brain into which they discharge, and there is

some evidence for this view. In one experiment, when an

electric stimulus was applied to a given sensory field of

20     the cerebral cortex of a conscious human subject, it

produced a sensation of the appropriate modality for that

particular locus, that is, a visual sensation from the visual

cortex, an auditory sensation from the auditory cortex,

and so on. However, cortical locus, in itself, turned out to

25    have little explanatory value.


1. The author mentions ―common currency‖ in line 13

primarily in order to emphasize the

(A) lack of differentiation among nerve impulses in

human beings

(B) similarity of the sensations that all human

beings experience

(C) similarities in the views of scientists who have

studied the human nervous system

(D) continuous passage of nerve impulses through

the nervous system

(E) recurrent questioning by scientists of an

accepted explanation about the nervous

system 


2. The description of an experiment in which electric

stimuli were applied to different sensory fields of the

cerebral cortex tends to support the theory that

(A) the simple presence of different cortical areas

cannot account for the diversity of mental

experience

(B) variation in spatiotemporal patterning of nerve

impulses correlates with variation in

subjective experience

(C) nerve impulses are essentially homogeneous

and are relatively unaffected as they travel

through the nervous system

(D) the mental experiences produced by sensory

nerve impulses are determined by the

cortical area activated

(E) variation in neuron types affects the quality of

nerve impulses


3. Which of the following best summarizes the

author‘s opinion of the suggestion that different

areas of the brain determine perceptions produced

by sensory nerve impulses?

(A) It is a plausible explanation, but it has not been

completely proved.

(B) It is the best explanation of brain processes

currently available.

(C) It is disproved by the fact that the various areas

of the brain are physiologically very similar.

(D) There is some evidence to support it, but it fails

to explain the diversity of mental experience.

(E) There is experimental evidence that confirms its

correctness.


解析:

1. 定位到第 11 行:

―that nerve impulses are essentially

homogeneous in quality and are transmitted

as ―common currency throughout the nervous

system.‖ 每一句话都透露着一种

关于 nerve impulse 的一致、同一的感觉。

2. 定位到文章第二十行:可以直接得出答案

“it produced a sensation of the appropriate

modality for that particular locus,

that is, a visual sensation from the visual

cortex‖

3. 结合上一句的每种 locus 对应不同的 sensation;

每个之间不具备分析的价值。

“However, cortical locus, in itself, turned out

to have little explanatory value.”


希望大家能从以上典例中得到GRE阅读学习上的一丝启发~更多GRE学习备考疑问解答与资料获取请戳R妹 LGGRE335

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