英语四级改错精练(9)

　　There are great many reasons for studying what philosophers 1.________
　have said in the past. One is that we cannot separate the
　history of philosophy from which of science. Philosophy is 2.________
　large discussion about matters on which few people are quite 3.________
　certain, and those few hold opposite opinions. As knowledge
　increases, philosophy buds off the sciences. ?

　For an example, in the ancient world and the Middle Ages 4.________
　philosophers discussed motion. Aristotle and St. Thomas
　Aquinas taught that a moving body would slow down until a force 5.________
　were constantly applied to it. They were wrong. It goes on moving
　unless something slows it down. But they had good arguments on
　their side, and if we study these, and the experiments
　which proved them right this will help us to distinguish truth 6.________
　from false in the scientific controversies of today. ?7.________