选课中心
7099人选课
GRE公开讲座
0元
GMAT公开讲座
0元
一对一体验课
99元
GRE模考网站
10000人
托福TPO模考网站HOT
39209人预约
GRE辅导课程
17537 人
GMAT辅导课程
17537 人
托福辅导课程
17537 人
【定制】1v1
私人订制
资料下载
考前冲刺
扫码关注掌握一手留学资讯
回复XDF免费领
水平测试和备考资料
扫码关注公众号
GRE阅读:视觉感受与能量反射接收
SECTION A
Our visual perception depends on the reception of energy reflecting or radiating from that which we wish to perceive. If our eyes could receive and measure infinitely delicate sense-data, we could perceive the world with infinite precision. The natural limits of our eyes have, of course, been extended by mechanical instruments; telescopes and microscopes, for example, expand our capabilities greatly. There is, however, an ultimate limit beyond which no instrument can take us; this limit is imposed by our inability to receive sense-data smaller than those conveyed by an individual quantum of energy. Since these quanta are believed to be indivisible packages of energy and so cannot be further refined, we reach a point beyond which further resolution of the world is not possible. It is like a drawing a child might make by sticking indivisible discs of color onto a canvas.
We might think that we could avoid this limitation by using quanta with extremely long wavelengths; such quanta would be sufficiently sensitive to convey extremely delicate sense-data. And these quanta would be useful, as long as we only wanted to measure energy, but a completely accurate perception of the world will depend also on the exact measurement of the lengths and positions of what we wish to perceive. For this, quanta of extremely long wavelengths are useless. To measure a length accurately to within a millionth of an inch, we must have a measure graduated in millionths of an inch; a yardstick graduated in inches in useless. Quanta with a wavelength of one inch would be, in a sense, measures that are graduated in inches. Quanta of extremely long wavelength are useless in measuring anything except extremely large dimensions.
Despite these difficulties, quanta have important theoretical implications for physics. It used to be supposed that, in the observation of nature, the universe could be divided into two distinct parts, a perceiving subject and a perceived object. In physics, subject and object were supposed to be entirely distinct, so that a description of any part of the universe would be independent of the observer. The quantum theory (quantum theory: 量子论), however, suggests otherwise, for every observation involves the passage of a complete quantum from the object to the subject, and it now appears that this passage constitutes an important coupling between observer and observed. We can no longer make a sharp division between the two in an effort to observe nature objectively. Such an attempt at objectivity would distort the crucial interrelatioship of observer and observed as parts of a single whole. But, even for scientists, it is only in the world of atoms that this new development makes any appreciable difference in the explanation of observations.
17. The primary purpose of the passage is to
(A) discuss a problem that hinders precise perception of the world
(B) point out the inadequacies of accepted units of measurement
(C) criticize attempts to distinguish between perceiving subjects and perceived objects
(D) compare and contrast rival scientific hypotheses about how the world should be measured and observed(A)
(E) suggest the limited function of sensory observation
18. According to the passage, quanta with an extremely long wavelength cannot be used to give complete information about the physical world because they
(A) exist independently of sense-data
(B) are graduated only in inches
(C) have an insignificant amount of energy
(D) cannot, with present-day instruments, be isolated from quanta of shorter wavelength(E)
(E) provide an insufficiently precise means of measuring length and position
19. Which of the following describes a situation most analogous to the situation discussed in lines 9-13?
(A) A mathematician can only solve problems the solution of which can be deduced from known axiom.
(B) An animal can respond to no command that is more complicated syntactically than any it has previously received.
(C) A viewer who has not learned, at least intuitively, the conventions of painting, cannot understand perspective in a drawing.
(D) A sensitized film will record no detail on a scale that is smaller than the grain of the film.(D)
(E) A shadow cast on a screen by an opaque object will have sharp edge only if the light source is small or very distant.
20. The author uses the analogy of the child’s drawing (lines 17-19) primarily in order to
(A) illustrate the ultimate limitation in the precision of sense-data conveyed by quanta
(B) show the sense of helplessness scientists feel in the face of significant observational problems
(C) anticipate the objections of the those scientists who believe that no instrumental aid to observation is entirely reliable
(D) exemplify the similarities between packages of energy and varieties of color(A)
(E) disparage those scientists who believe that measurement by means of quanta offers an accurate picture of the world
21. The author implies that making a sharp division between subject and object in physics is
(A) possible in a measurement o object’s length and position, but not in a measurement of its energy
(B) still theoretically possible in the small-scale world of atoms and electrons
(C) possible in the case of observations involving the passage of a complete quantum
(D) no longer an entirely accurate way to describe observation of the universe(D)
(E) a goal at which scientists still aim
22. The author’s use of the phrase “in a sense” (line 34) implies which of the following?
(A) Quanta of extremely long wavelength are essentially graduated in inches.
(B) quanta of one-inch wavelength are not precisely analogous to yardsticks graduated in inches.
(C) Quanta of extremely long wavelength, in at least on e respect, resemble quanta of shorter wavelength.
(D) quanta of on-inch wavelength and quanta of extremely long wavelength do not differ only in their wavelengths.(B)
(E) quanta of one-inch wavelength must be measured by different standards than quanta of extremely long wavelength.
23. According to the passage, the quantum theory can be distinguished from previous theories of physics by its
(A) insistence on scrupulously precise mathematical formulations
(B) understanding of the inherent interrelationship of perceiver and perceived
(C) recognition of the need for sophisticated instruments of measurement
(D) emphasis on small-scale rather than on large-scale phenomena(B)
(E) regard for philosophical issues as well as for strictly scientific ones
Tillie Olsen’s fiction and essays have been widely and rightly acknowledged as major contributions to American literature. Her work has been particularly valued by contemporary feminists. Yet few of Olsen’s readers realize the extent to which her vision and choice of subject are rooted in an earlier literary heritage—the tradition of radical political thought, mostly socialist and anarchist, of the 1910’s and 1920’s, and the Old Left tradition of the 1930’s. I do not mean that one can adequately explain the eloquence of her work in terms of its political origins, or that left-wing politics were the single most important influence on it. My point is that its central consciousness—its profound understanding of class and gender as shaping influences on people’s lives—owes much to that earlier literary heritage, a heritage that, in general, has not been sufficiently valued by most contemporary literary critics.
24. The primary purpose of the passage is to
(A) argue that Olsen’s understanding of class and gender is her greatest gift as a writer
(B) acknowledge Olsen’s importance as the leading spokesperson for a radical literary heritage
(C) point out a literary heritage to which Olsen’s work is related
(D) urge literary critics to investigate the origins of a literary heritage(C)
(E) suggest that Olsen’s work has been placed in a literary heritage to which it does not belong
25. According to the author, which of the following is true of the heritage mentioned in the passage?
(A) It emphasizes gender as the determinate influence on people’s lives.
(B) It has been the most important influence on Olsen’s work.
(C) It includes political traditions that span three decades of the twentieth century.
(D) It explains the eloquence but not the subject matter of Olsen’s work.(C)
(E) It reflects primarily the development of socialist political thought in the early twentieth century.
26. In the sentence “I do not … influence on it” (lines 10-14), the author dos which of the following?
(A) Broadens an existing classification.
(B) Contradicts the passage’s central thesis.
(C) Qualifies a commonly accepted point of view.
(D) Presents conflicting explanations for a phenomenon.(E)
(E) Denies possible interpretations of an earlier assertion.
27. According to the author, Olsen’s work has been
(A) rightly acknowledged for its contribution to political thought
(B) thought to represent the beginning of new literary tradition
(C) a needed impetus for social change
(D) most clearly influenced by feminism(E)
(E) deservedly admired by readers
资料下载
GRE佛脚2024增补包含最新热词与六选二整理
发布时间:2022-06-06添加新东方在线美研助教号
回复【资料】获取
GRE-PPO模考完整套题+解析资料下载
发布时间:2022-06-06添加新东方在线美研助教号
回复【资料】获取
GRE佛脚词汇表网络版资料下载
发布时间:2022-05-21添加新东方在线美研助教号
回复【资料】获取
2024GRE佛脚填空机经系列资料下载
发布时间:2022-04-15添加新东方在线美研助教号
回复【资料】获取
2024GRE佛脚阅读系列资料下载
发布时间:2022-04-15添加新东方在线美研助教号
回复【资料】获取
2024杨鹏阅读难句(GMAT+GRE)教程资料下载
发布时间:2022-04-15添加新东方在线美研助教号
回复【资料】获取
GRE PPO模考完整练习题(答案)
发布时间:2019-12-10添加新东方在线美研助教号
回复【资料】获取
GRE写作题库解析【Issue/Argument】
发布时间:2019-12-10添加新东方在线美研助教号
回复【资料】获取
GRE阅读机经及官方真题资料练习
发布时间:2019-12-10关注新东方在线美研订阅号
回复【GRE】获取
GRE填空机经佛脚系列资料持续更新…
发布时间:2019-12-10添加新东方在线美研助教号
回复【资料】获取
GRE佛脚词汇修订版PDF电子版下载
发布时间:2019-12-10添加新东方在线美研助教号
回复【资料】获取
【提升英语必看】英语记录片/演讲/美剧合集
发布时间:2019-11-27添加新东方在线美研助教号
回复【资料】获取
《华尔街日报》、《纽约时报》英文报刊合集
发布时间:2019-11-27添加新东方在线美研助教号
回复【资料】获取
【必看】美国研究生申请注意事项
发布时间:2019-11-27添加新东方在线美研助教号
回复【资料】获取
美国研究生录取分数&截止日期信息汇总
发布时间:2019-11-27添加新东方在线美研助教号
回复【资料】获取
2020美国研究生热门专业院校排名
发布时间:2019-11-27添加新东方在线美研助教号
回复【资料】获取
GRE模考套题、机经汇总
发布时间:2019-11-27添加新东方在线美研助教号
回复【资料】获取
添加美研助教号,
回复【GRE】获取备考必看资料包
推荐阅读
更多>>备考GRE,对大部分同学来说也是一个新挑战,尤其是阅读部分,如何在有限的时间内大幅提高阅读速度呢? 快来本文看看吧。
本文今天为大家带来的是gre考试中easy等级难度的阅读片段,一起来看看吧!
2022年3月13-19日GRE阅读题回忆及答案(六)来啦,来本文和新东方在线GRE一起来看看详细信息吧。
2022年3月13-19日GRE阅读题回忆及答案(五)来啦,来本文和新东方在线GRE一起来看看详细信息吧。
2022年3月13-19日GRE阅读题回忆及答案(四)来啦,来本文和新东方在线GRE一起来看看详细信息吧。
2022年3月13-19日GRE阅读题回忆及答案(三)来啦,来本文和新东方在线GRE一起来看看详细信息吧。
2022年3月13-19日GRE阅读题回忆及答案(二)来啦,来本文和新东方在线GRE一起来看看详细信息吧。
2022年3月13-19日GRE阅读题回忆及答案(一)来啦,来本文和新东方在线GRE一起来看看详细信息吧。
2022年2月13日GRE阅读题回忆及答案来啦,来本文和新东方在线GRE一起来看看详细信息吧。
2022年2月13日GRE阅读题回忆及答案来啦,来本文和新东方在线GRE一起来看看详细信息吧。
添加美研助教号,
回复【GRE】获取备考必看资料包
资料下载
更多>>添加新东方在线美研助教号
回复【资料】获取
添加新东方在线美研助教号
回复【资料】获取
添加新东方在线美研助教号
回复【资料】获取
添加新东方在线美研助教号
回复【资料】获取
添加新东方在线美研助教号
回复【资料】获取
添加新东方在线美研助教号
回复【资料】获取
添加新东方在线美研助教号
回复【资料】获取
添加新东方在线美研助教号
回复【资料】获取
关注新东方在线美研订阅号
回复【GRE】获取
添加新东方在线美研助教号
回复【资料】获取
添加新东方在线美研助教号
回复【资料】获取
添加新东方在线美研助教号
回复【资料】获取
添加新东方在线美研助教号
回复【资料】获取
添加新东方在线美研助教号
回复【资料】获取
添加新东方在线美研助教号
回复【资料】获取
添加新东方在线美研助教号
回复【资料】获取
添加新东方在线美研助教号
回复【资料】获取
阅读排行榜
相关内容