填空题

Historians are detectives searching out the evidence of the past in their pursuit of history. This is a challenging and frequently engaging quest 1 its own, but evidence must be turned to 2 . Primary sources that are uncovered 3 many forms that vary 4 the questions asked and the period studied, but written records are 5 historians use more than any other. The historian does not 6 evidence in the manner of courts of law, where questions of admissibility and truth versus falsehood are 7 . The historian’’s use of evidence is much more 8  Determining how and with what end 9 mind any piece of evidence came into existence are the first tasks 10 the historian in the internal criticism of historical sources. It is important to know, for instance, who 11 a particular census and with what instructions, or 12 a correspondent was addressing a friend or foe, colleague or opponent.   For many years historians divided evidence into the two 13 of primary and secondary sources. The former were considered as any 14 or artifact from the period 15  study, the latter as descriptions or reconstructions based on primary sources. The function of the historian, it was 16 , was to convert primary sources into secondary sources. This 17 misleads. What have been called secondary sources am not historical sources at all, but 18 that reveal the historian’’s point of view. All evidence used by the historian was a primary source at the time it was 19 and it is always partial and incomplete. Therein lies part of the 20 of history.

【参考答案】

A
热门 试题

填空题
Albert Einstein once said, The whole of science is nothing more than a refinement of everyday thinking. The first thing scientists must do is to ask a question or identify a problem to be investigated. 46) Then scientists working on this problem collect scientific data, or facts, by making observations and taking measurements, which must be verified or confirmed by repeated observations and measurements, ideally by several different investigators.47) The primary goal of science is not facts in and of themselves, but a new idea, principle, or model that connects and explains certain facts and leads to useful predictions about what should happen in nature. Scientists working on a particular problem try to come up with a variety of possible explanations or scientific hypotheses of what they (or other scientists)observe in nature. Then experiments are conducted (and repeated to be sure they are reproducible)to test the deductions or predictions for each hypothesis so as to arrive at the most plausible or useful hypothesis.48) If many experiments by different scientists support a particular hypothesis, it becomes a scientific theory―a well-tested and widely accepted idea, principle, or model that usually ties together and explains many facts that previously appeared to be unrelated. Converting a scientific hypothesis to a scientific theory is a difficult process, often requiring decades, even hundreds of years. To scientists, theories are not to be taken lightly ,for they are ideas or principles stated with a high degree of certainty because they are supported by a great deal of evidence.Another end result of science is a scientific law ―a description of what we find happening in nature over and over in the same way, without known exception. The more complex the parts of nature scientists study, the more difficult it becomes to discover scientific laws. 49) There are many scientific laws of physics and chemistry, only a few in biology, and even fewer (and less reliable ones) in fields involving complex interactions of multiple factors ( variables), such as ecology, climatology( study of climate) ,and social sciences such as economics and politics.The scientific process requires not only logical reasoning, but also imagination, creativity, and intuition. According to physicist Albert Einstein, There is no completely logical way to a new scientific idea. 50) Intuition, imagination, and creativity are as important in science as they are in poetry, art, music, and other great adventures of the human spirit that awaken us to the wonder, mystery, and beauty of life, the Earth and the universe.