GMAT阅读相关文章及问题（八）.

　　要想在GMAT考试中取得高分，GMAT的各个部分都要精通，要想在GMAT阅读部分获得高分，考生就需要多练习，不仅要提高阅读的速度也要提高理解能力。为了使大家有更多的文章进行练习，澳际留学小编在此为大家提供一系列的文章以及问题，希望能够同学们备考GMAT阅读考试带来帮助。红色字体的选项为正确答案。更多相关问题可咨询澳际留学在线专家，如果有任何意见和建议，也请联系我们。

Virtually everything astronomers known about objects outside the solar system is based on the detection of photons—quanta of electromagnetic radiation. Yet there is another form of radiation that permeates the universe: neutrinos. With (as its name implies) no electric charge, and negligible mass, the neutrino interacts with other particles so rarely that a neutrino can cross the entire universe, even traversing substantial aggregations of matter, without being absorbed or even dlected. Neutrinos can thus escape from regions of space where light and other kinds of electromagnetic radiation are blocked by matter. Furthermore, neutrinos carry with them information about the site and circumstances of their production: therore, the detection of cosmic neutrinos could provide new information about a wide variety of cosmic phenomena and about the history of the universe.

　　But how can scientists detect a particle that interacts so infrequently with other matter? Twenty-five years passed between Pauli’s hypothesis that the neutrino existed and its actual detection: since then virtually all research with neutrinos has been with neutrinos created artificially in large particle accelerators and studied under neutrino microscopes. But a neutrino telescope, capable of detecting cosmic neutrinos, is difficult to construct. No apparatus can detect neutrinos unless it is extremely massive, because great mass is synonymous with huge numbers of nucleons (neutrons and protons), and the more massive the detector, the greater the probability of one of its nucleon’s reacting with a neutrino. In addition, the apparatus must be sufficiently shielded from the interfering fects of other particles.

　　Fortunately, a group of astrophysicists has proposed a means of detecting cosmic neutrinos by harnessing the mass of the ocean. Named DUMAND, for Deep Underwater Muon and Neutrino Detector, the project calls for placing an array of light sensors at a depth of five kilometers under the ocean surface. The detecting medium is the seawater itself: when a neutrino interacts with a particle in an atom of seawater, the result is a cascade of electrically charged particles and a flash of light that can be detected by the sensors. The five kilometers of seawater above the sensors will shield them from the interfering fects of other high-energy particles raining down through the atmosphere.

　　The strongest motivation for the DUMAND project is that it will exploit an important source of information about the universe. The extension of astronomy from visible light to radio waves to x-rays and gamma rays never failed to lead to the discovery of unusual objects such as radio galaxies, quasars, and pulsars. Each of these discoveries came as a surprise. Neutrino astronomy will doubtless bring its own share of surprises.

出国留学办理签证是必不可少的，而办理签证的过程亦难易简，从政策解析到递交材料，从申请签证到领取签证!《玩转留学签证》帮你顺利拿下各国签证！更有名校师哥师姐为你讲解牛校申请经验，《谁说申请高手没有秘密》赶紧来探秘一下吧！

　　1. Which of the following titles best summarizes the passage as a whole?

　　(A) At the Threshold of Neutrino Astronomy

　　(B) Neutrinos and the History of the Universe

　　(C) The Creation and Study of Neutrinos

　　(D) The DUMAND System and How It Works

　　(E) The Properties of the Neutrino

　　2. With which of the following statements regarding neutrino astronomy would the author be most likely to agree?

　　(A) Neutrino astronomy will supersede all present forms of astronomy.

　　(B) Neutrino astronomy will be abandoned if the DUMAND project fails.

　　(C) Neutrino astronomy can be expected to lead to major breakthroughs in astronomy.

　　(D) Neutrino astronomy will disclose phenomena that will be more surprising than past discoveries.

　　(E) Neutrino astronomy will always be characterized by a large time lag between hypothesis and experimental confirmation.

　　3. In the last paragraph, the author describes the development of astronomy in order to

　　(A) suggest that the potential findings of neutrino astronomy can be seen as part of a series of astronomical successes

　　(B) illustrate the role of surprise in scientific discovery

　　(C) demonstrate the fectiveness of the DUMAND apparatus in detecting neutrinos

　　(D) name some cosmic phenomena that neutrino astronomy will illuminate

　　(E) contrast the motivation of earlier astronomers with that of the astrophysicists working on the DUMAND project

　　4. According to the passage, one advantage that neutrinos have for studies in astronomy is that they

　　(A) have been detected for the last twenty-five years

　　(B) possess a variable electric charge

　　(C) are usually extremely massive

　　(D) carry information about their history with them

　　(E) are very similar to other electromagnetic particles

　　5. According to the passage, the primary use of the apparatus mentioned in lines 21-28 would be to

　　(A) increase the mass of a neutrino

　　(B) interpret the information neutrinos carry with them

　　(C) study the internal structure of a neutrino

　　(D) see neutrinos in distant regions of space

　　(E) detect the presence of cosmic neutrinos

　　6. The passage states that interactions between neutrinos and other matter are

　　(A) rare

　　(B) artificial

　　(C) undetectable

　　(D) unpredictable

　　(E) hazardous

　　7. The passage mentions which of the following as a reason that neutrinos are hard to detect?

　　(A) Their pervasiveness in the universe

　　(B) Their ability to escape from different regions of space

　　(C) Their inability to penetrate dense matter

　　(D) The similarity of their structure to that of nucleons

　　(E) The infrequency of their interaction with other matter

　　8. According to the passage, the interaction of a neutrino with other matter can produce

　　(A) particles that are neutral and massive

　　(B) a form of radiation that permeates the universe

　　(C) inaccurate information about the site and circumstances of the neutrino’s production

　　(D) charged particles and light

　　(E) a situation in which light and other forms of electromagnetic radiation are blocked

　　9. According to the passage, one of the methods used to establish the properties of neutrinos was

　　(A) detection of photons

　　(B) observation of the interaction of neutrinos with gamma rays

　　(C) observation of neutrinos that were artificially created

　　(D) measurement of neutrinos that interacted with particles of seawater

　　(E) experiments with electromagnetic radiation

以上文章就是澳际留学小编为大家提供的GMAT阅读练习文章，考GMAT本来就是一场毅力战，大家一定要坚持住呀！澳际留学在此祝大家早日通过GMAT考试，并进入自己心仪的大学学习。

　相关链接：

1.GMAT阅读每日训练(速度)：科技

2.一战GMAT740分考生阅读经验分享

3.提高GMAT阅读成绩的方法

　　要想在GMAT考试中取得高分，GMAT的各个部分都要精通，要想在GMAT阅读部分获得高分，考生就需要多练习，不仅要提高阅读的速度也要提高理解能力。为了使大家有更多的文章进行练习，澳际留学小编在此为大家提供一系列的文章以及问题，希望能够同学们备考GMAT阅读考试带来帮助。红色字体的选项为正确答案。更多相关问题可咨询澳际留学在线专家，如果有任何意见和建议，也请联系我们。

Virtually everything astronomers known about objects outside the solar system is based on the detection of photons—quanta of electromagnetic radiation. Yet there is another form of radiation that permeates the universe: neutrinos. With (as its name implies) no electric charge, and negligible mass, the neutrino interacts with other particles so rarely that a neutrino can cross the entire universe, even traversing substantial aggregations of matter, without being absorbed or even dlected. Neutrinos can thus escape from regions of space where light and other kinds of electromagnetic radiation are blocked by matter. Furthermore, neutrinos carry with them information about the site and circumstances of their production: therore, the detection of cosmic neutrinos could provide new information about a wide variety of cosmic phenomena and about the history of the universe.

　　But how can scientists detect a particle that interacts so infrequently with other matter? Twenty-five years passed between Pauli’s hypothesis that the neutrino existed and its actual detection: since then virtually all research with neutrinos has been with neutrinos created artificially in large particle accelerators and studied under neutrino microscopes. But a neutrino telescope, capable of detecting cosmic neutrinos, is difficult to construct. No apparatus can detect neutrinos unless it is extremely massive, because great mass is synonymous with huge numbers of nucleons (neutrons and protons), and the more massive the detector, the greater the probability of one of its nucleon’s reacting with a neutrino. In addition, the apparatus must be sufficiently shielded from the interfering fects of other particles.

　　Fortunately, a group of astrophysicists has proposed a means of detecting cosmic neutrinos by harnessing the mass of the ocean. Named DUMAND, for Deep Underwater Muon and Neutrino Detector, the project calls for placing an array of light sensors at a depth of five kilometers under the ocean surface. The detecting medium is the seawater itself: when a neutrino interacts with a particle in an atom of seawater, the result is a cascade of electrically charged particles and a flash of light that can be detected by the sensors. The five kilometers of seawater above the sensors will shield them from the interfering fects of other high-energy particles raining down through the atmosphere.

　　The strongest motivation for the DUMAND project is that it will exploit an important source of information about the universe. The extension of astronomy from visible light to radio waves to x-rays and gamma rays never failed to lead to the discovery of unusual objects such as radio galaxies, quasars, and pulsars. Each of these discoveries came as a surprise. Neutrino astronomy will doubtless bring its own share of surprises.

出国留学办理签证是必不可少的，而办理签证的过程亦难易简，从政策解析到递交材料，从申请签证到领取签证!《玩转留学签证》帮你顺利拿下各国签证！更有名校师哥师姐为你讲解牛校申请经验，《谁说申请高手没有秘密》赶紧来探秘一下吧！

　　1. Which of the following titles best summarizes the passage as a whole?

　　(A) At the Threshold of Neutrino Astronomy

　　(B) Neutrinos and the History of the Universe

　　(C) The Creation and Study of Neutrinos

　　(D) The DUMAND System and How It Works

　　(E) The Properties of the Neutrino

　　2. With which of the following statements regarding neutrino astronomy would the author be most likely to agree?

　　(A) Neutrino astronomy will supersede all present forms of astronomy.

　　(B) Neutrino astronomy will be abandoned if the DUMAND project fails.

　　(C) Neutrino astronomy can be expected to lead to major breakthroughs in astronomy.

　　(D) Neutrino astronomy will disclose phenomena that will be more surprising than past discoveries.

　　(E) Neutrino astronomy will always be characterized by a large time lag between hypothesis and experimental confirmation.

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