在历史的长河中科学家为这个世界做出了巨大的贡献。我认为科学家就是那些在工作中严格要求自己及专注于他们所从事的每件事的人。科学家从不莽撞地做出结论。反之他对自己所提出的结论都极为谨慎为此他可以一次又一次做实牢记这么一点:一个理论如果无法帮助世人从不可预料的困境中解脱的话就不能称之为好理论。而且好的理论应该是可以为其他理论的建立提供基础的。因此我们不难看到科学家们耗尽一生的心血只为找到一个放诸四海皆准的理论。答案:1.contributions 2.In my opinion 3.are strict in 5.again and again 6.keep it in mind 7.In addition 8.Because ofⅤ.课文语法填空阅读下面课文缩写材料在空白处填入适当的内容或括号内单词的正确形式(不多于3个单词)。______1______(inspire)when he thought about helping ordinary people who ______2______(expose) to cholera,a ______3______(dead)disease of his day.Many thousands of people died every time there was an outbreak ______4______ no one knew the cause of it.John wanted to help solve ______5______ problem.
He got interested in two theories ______6______ (explain) how cholera killed people.He believed in the second theory ______7______ suggested that people absorbed the disease with their meals.In 1854,______8______ another outbreak hit London,he was ready to test the two theories.______9______ the help of the map ______10______ made,he got a valuable clue about the cause of the disease and was able to announce that the water was to blame.
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