about the universe. The extension of astronomy from
visible light to radio waves to x-rays and gamma rays
(50) 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.
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 a美国GREe?
(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 effectiveness 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