[填空题]Everyone has had this experience of losing attention, but probably few people understand one of the main reasons why we have this trouble keeping our attention on the speaker. The reason is this: There is a great deal of difference between talking speed and listening speed. The result of this gap is that we have a lot of (36) time to use while listening to a (37) .
Here are three mental techniques you can use to keep your (38) on the speaker. First of all, (39) what the speaker has said. Do this after each new point is developed. This (40) summarizing will help you pay attention. Second, try to guess where the speaker is going next. Try to (41) what direction the speaker is going to take, based on what has already been said. This game you play with yourself arouses your curiosity and helps (42) your attention. Third, question the truth, the (43) , of the speaker’s words. Keep trying to decide

[填空题]Everyone has had this experience of losing attention, but probably few people understand one of the main reasons why we have this trouble keeping our attention on the speaker. The reason is this: There is a great deal of difference between talking speed and listening speed. The result of this gap is that we have a lot of (36) time to use while listening to a (37) .
Here are three mental techniques you can use to keep your (38) on the speaker. First of all, (39) what the speaker has said. Do this after each new point is developed. This (40) summarizing will help you pay attention. Second, try to guess where the speaker is going next. Try to (41) what direction the speaker is going to take, based on what has already been said. This game you play with yourself arouses your curiosity and helps (42) your attention. Third, question the truth, the (43) , of the speaker’s words. Keep trying to decide

[填空题]

conglomerate has had decided to purchase a European firm. "The best acquisitions in the United States have already been picked, " the president told the board of directors. "However, I’m

[填空题]What American has had the largest family

[简答题]Relativity theory has had a profound influence on our picture of matter by forcing us to modify our concept of a particle in an essential way. (46) In classical physics, the mass of an object had always been associated with an indestructible material substance, with some "stuff" of which all things were thought to be made. Relativity theory showed that mass has nothing to do with any substance, but is a form energy. Energy, however, is a dynamic quantity associated with activity, or with processes. (47) The fact that the mass of a particle is equivalent to a certain of energy means that the particle can no longer be seen as a static _object, but has to be conceived as a dynamic pattern, a process involving the energy which manifest itself as the particle’s mass.
(48) This new view of particles was initiated by Dirac when he formulated a relativistic equation describing the behavior of electrons. Dirac’s theory was not only extremely

[单项选择]Traditionally, the study of history has had fixed boundaries and focal points—periods, countries, dramatic events, and great leaders. It also has had clear and firm notions of scholarly procedure., how one inquires into a historical problem, how one presents and documents one’s findings, what constitutes admissible and adequate proof.
Anyone who has followed recent historical literature can testify to the revolution that is taking place in historical studies. The currently fashionable subjects come directly from the sociology catalog: childhood, work, leisure. The new subjects are accompanied by new methods. Where history once was primarily narrative, it is now entirely analytic. The old questions "What happened" and "How did it happen" have given way to the question "Why did it happen" Prominent among the methods used to answer the question "Why" is psychoanalysis, and its use has given rise to psychohistory.
Psychohistory does not merely use psychological explanations in hi
A. The lives of historical figures are presented in episodic rather than narrative form.
B. Archives used by psychohistorians to gather material are not accessible to other scholars.
C. Past and current events are all placed within the same deterministic schema.
D. Events in the adult life of a historical figure are seen to be more consequential than are those in the childhood of the figur