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完形填空(Cloze Test)

　　How lucky we are today that we can protect ourselves against many illnesses that once meant death to thousands of people．This is because of work of a famous French scientist who suffered a great deal in his own life so that others might 　　1　　．Louis Pasteur was a bright boy, 　　2　　 his teachers said he was 　　3　　．The reason for this was simple．Louis was very 　　4　　 with everything he did．He wanted to understand all and he asked many questions．“Listen, ”　　5　　 an angry teacher one day．“You are supposed to(應(yīng)該)answer the question 　　6　　 asking them!”

　　However, he never stopped asking questions．There was one 　　7　　 question he asked：By what was illness 　　8　　?　　9　　 he discovered the answers that have helped men to be 　　10　　 from death ever since．He worked very hard to keep 　　11　　 going on．When the silkworms(蠶)began 　　12　　 , France's silk-makers 　　13　　 money．They 　　14　　 Pasteur for help．

　　He found out the answer：certain tiny living things called germs(細(xì)菌)　　15　　the silkworm eggs．Pasteur found a way of 　　16　　 these germs, or something like them．The whole country was 　　17　　 , but during his years of work three 　　18　　 of his own died．Even in his 　　19　　 he believed that other children's lives could be saved if he could stop germs from 　　20　　．

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