单选题 It has always been difficult for the philosopher or scientist to fit time into his view of the universe. Prior to Einsteinian physics, there was no truly adequate formulation of the relationship of time to the other forces in the universe, even though some empirical equations included time quantities. However, even the Einsteinian formulation is not perhaps totally adequate to the job of fitting time into the proper relationship with the other dimensions, as they are called, of space. The primary problem arises in relation to things which might be going faster than the speed of light, or have other strange properties. Examination of the Lorentz-Fitzgerald formulas yields the interesting speculation that if something did actually exceed the speed of light it would have its mass expressed as an imaginary number and would seem to be going backwards in time. The barrier to exceeding the speed of light is the apparent need to have an infinite quantity of mass moved at exactly the speed of light. If this situation could be leaped over in a large quantum jump—which seems highly unlikely for masses that are large in normal circumstances—then the other side may be achievable. The idea of going backwards in time is derived from the existence of a time vector that is negative , although just what this might mean to our senses in the unlikely circumstance of our experiencing this state cannot be conjectured. There have been, in fact, some observations of particle chambers which have led some scientists to speculate that a particle called the tachyon may exist with the trans-light properties we have just discussed. The difficulties of imagining and coping with these potential implications of our mathematical models points out the importance of studying alternative methods of notation for advanced physics. Professor Zuckerkandl, in his book Sound and Symbol, hypothesizes that it might be better to express the relationships found in quantum mechanics through the use of a notation derived from musical notations. To oversimplify greatly, he argues that music has always given time a special relationship to other factors or parameters or dimensions. Therefore, it might be a more useful language in which to express the relationships in physics where time again has a special role to play, and cannot be treated as just another dimension. The point of this, or any other alternative to the current methods of describing basic physical processes, is that time does not appear—either by common experience or sophisticated scientific understanding—to be the same sort of dimension or parameter as physical dimensions, and is deserving of completely special treatment, in a system of notation designed to accomplish that goal. One approach would be to consider time to be a field effect governed by the application of energy to mass—that is to say, by the interaction of different forms of energy, if you wish to keep in mind the equivalence of mass and energy. The movement of any normal sort of mass is bound to produce a field effect that we call positive time. An imaginary mass would produce a negative time field effect. This is not at variance with Einstein"s theories, since the "faster" a given mass moves the more energy was applied to it and the greater would be the field effect. The time effects predicted by Einstein and confirmed by experience are, it seems, consonant with this concept.
单选题 The "sound" of Professor Zuckerkandl"s book title probably refers to ______.
【正确答案】 A
【答案解析】解析:第五段中关于Sound and Symbol一书,作者Professor Zuckerkandl提出使用乐谱中的记谱法来进行标记,来表示量子力学中发现的关系。通过上文可知,量子力学中发现的关系涉及到宇宙中的时间维度。由此推测,本书中的sound指的可能是宇宙中的音乐。因此选A项。B项和C项均没有与宇宙联系起来,因此排除。D项范同太过狭窄,tachyons只是涉及到的一种物质,属于个别案例。
单选题 The passage supports the inference that______.
【正确答案】 D
【答案解析】解析:根据第二段最后两句,超越光速的最大障碍就是需要有一个无限大的质量物体以光速运动。但是作者接着指出,要实现量子论中这种情况,可能性是很小的。因此选D项。文中提到Einsteinian formulation并不能充分解决时间关系的问题,但并没有说其不正确或者与Lorentz—Fitzgerald formulas存在冲突,A项和B项属于无中生有,因此排除。根据第三段可知,时间旅行目前不太可能,因此C项错误。
单选题 The tone of the passage is______.
【正确答案】 D
【答案解析】解析:文中作者首先提出了时间关系方面的问题,接着谈到了各种理论推理,并指出其可行性或者存在的障碍,总体来说,作者的态度虽然不肯定,但是在努力推测,并且怀有希望,因此D项是正确的。作者并没有持怀疑态度,也没有批判,因此其他选项均不正确。
单选题 The central idea of the passage can be best described as being which of the following?
【正确答案】 A
【答案解析】解析:有关tachyons的讨论仅仅涉及文章的一小部分,因此可以排除C、D两项,作者文中提到的各种理论推测,无论是“notation derived from musical notations”还是“a fieldeffect”,均是与时间这一维度的标注方法有关,因此A项应为正确答案。文中并没有提到需要发展新的理论,因此B项错误。
单选题 According to the author, it is too soon to______.
【正确答案】 C
【答案解析】解析:根据第三段可知,时间旅行目前不太可能。因此选C项。