题型：语法填空（语篇） 题类：常考题 难易度：困难
人教版英语必修5 第一单元测评（含听力音频）
Louis Pasteur was a French scientist who developed cures for many dangerous (illness). He also successfully invented a way to kill bacteria in milk and make it safe to drink.
Pasteur was born in 1822, in Dole, France. He was a courageous student who (frequent) asked questions, searched for answers and challenged incorrect ideas. He (receive) a Doctor of Science degree in 1847. While (work) at the University of Lille, Pasteur discovered fermentation, a chemical change used to make bread, cheese and other foods, involved germs. He showed that heat killed the germs that cause fermentation. This (discover) led to his invention of a process for destroying harmful germs in food, which became (know) as pasteurization (巴氏灭菌法).
In the 1870s, Louis Pasteur sought to find a cure for anthrax—a disease mainly affects cattle. Firstly, he found anthrax was much more likely if farmers buried dead sheep with the disease in fields. Pasteur advised farmers not (bury) any dead animals in areas where cattle may eat growing grass in the future. In 1881 he conducted an experiment to try out his vaccine (疫苗) for anthrax, which was success.
Pasteur died in 1895, in Saint-Cloud, France. On his last day he remarked: "I should like to be younger, so as to devote myself the study of new diseases."
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