全新版大学英语综合教程第二版第三册课后习题答案-U【DOC精选】.doc

Unit 4 Was Einstein a Space Alien? Text A Content Questions （P.99） He worked as a “Technical Expert, Third Class”. He needed the job to support his young family. He published five of the most important papers in the history of science. This is because they proved that atoms and molecules existed, laid the foundation for quantum mechanics, describe the theory of special relativity, and advanced the famous equation: E=mc2 He developed the Theory of Universal Gravitation then. Because his ideas were far ahead of other scientists of his time. He meant that like other scientists Einstein was a man of his time. If he hadn’t been born, his 1905 papers would eventually have been written in some form by others. What was remarkable about 1905 is that year a single person authored five of the most improtant papers in science. Einstein proposed in 1905 that light is particulate and for this he won the Nobel Prize in 1921. Because if you did so you would find yourself disagreeing with phisicist James Clerk Maxwell, an Authority Figure who had proved that light was an electomagnetic wave. He was not at all concerned about authority. He hated being told what was true. Science was dinner-table conversation in the Einstein household when he was young. His interest in science came naturally. He credited his discoveries to imagination and endless questioning more so that otthodox intelligence. He struggled to produce a unified field theory, combinging gravity with other forces of nature, but he failed. He found Einstein’s brain looked much like any other. Text Organization （P.100） 1. (P.100) Parts Paragraphs Main Ideas Part One Paras. 1-3 A young husband and father, Albert Einstein had to work hard to support his family. Part Two Paras. 4-12 Einstein made astonishing achievements in physics and thus revolutionized the field. Part Three Paras. 13-21 Einstein’s discoveries were attributable to his imagination, questioning, disregard for authority, powers of concentration, and