高中二年级英语(人教版)上册 Unit 1 Integrating Skills 2

　　His discovery was completely new; it was said that only three people could understand it at the time. The difficulty was how he could prove his ideas to other scientists. Many of them did not

　　accept his scientific ideas. But Einstein went on with his research. By 1919, scientists who had been watching the stars believed in his work and he quickly became world-famous. From that time on Einstein was greatly respected as the leading scientist of the century.

　　The First World War (1914-1918) had brought him great sadness. He had taken Swiss nationality in 1901 and therefore did not have to join the army, as Switzerland did not take sides in the war. Einstein thought that war was a terrible thing and believed that fighting and killing in wars was wrong. He did urge the United States to build an atomic bomb to defeat the Nazis, but when Einstein saw the effect of the bomb, he regretted his actions. What he wanted to see was an end to all the armies of the world.

　　When Hitler came into power in the early 1930s, Einstein, who was a Jew, found it impossible to continue living in Germany. His friends were beaten, or taken away, or their homes were destroyed. While he was doing research in America, Einstein wrote a letter to a newspaper to say that these acts were wrong. It meant that he would never be able to visit Germany again. That is why Einstein and his family left Europe for the USA in 1933.