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  3. In 1915 Einstein made a trip to Gottingen to give some lectures at the invitation of the mathematical physicist David Hilbert. H

In 1915 Einstein made a trip to Gottingen to give some lectures at the invitation of the mathematical physicist David Hilbert. H

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问题     In 1915 Einstein made a trip to Gottingen to give some lectures at the invitation of the mathematical physicist David Hilbert. He was particularly eager—too eager, it would turn 【C1】______ to explain all the intricacies of relativity to him. The visit was a triumph, and he said to a friend excitedly: "I was able to【C2】______Hilbert of the general theory of relativity."
    【C3】______all of Einstein’ s personal turmoil at the time, a new scientific anxiety was about to 【C4】______. He was struggling to find the right equations that would 【C5】______ his new concept of gravity, 【C6】______ that would define how objects move【C7】______space and how space is curved by objects. By the end of the summer, he【C8】______the mathematical approach he had been【C9】______for almost three years was flawed. And now there was a【C10】______pressure. Einstein discovered to his【C11】______that Hilbert had taken what he had lectures and was racing to come up【C12】______the correct equations first.
    It was an enormously complex task. Although Einstein was the better physicist. Hilbert was the better mathematician. So in October 1915 Einstein【C13】______himself into a month-long-frantic endeavor in【C14】______he returned to an earlier mathematical strategy and wrestled with equations, proofs, corrections and updates that he【C15】______to give as lectures to Berlin’s Prussian Academy of Sciences on four【C16】______Thursdays.
    His first lecture was delivered on Nov. 4,1915, and it explained his new approach,【C17】______he admitted he did not yet have the precise mathematical formulation of it. Einstein also took time off from【C18】______revising his equations to engage in an awkward fandango with his competitor Hilbert. Worried【C19】______being scooped, he sent Hilbert a copy of his Nov. 4 lecture. "I am 【C20】______ to know whether you will take kindly to this new solution," Einstein noted with a touch of defensiveness.  
【C9】
选项 A、pursuing
B、protecting
C、contesting
D、contending
答案A
解析 考查动词辨析。四个选项均为动词的现在分词形式。pursue意为“从事，追踪”，后常接某种目标或追求，符合语境，此处指爱因斯坦探索数学方法。protect“保护”；contest“争辩，竞赛”；contend“斗争，竞争”，均不符合题意。故选A．pursuing。
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