discoveries.

　　Galileo，however，who lived about 300 years later (1564～1642), the greatest of several great men, __12__ lived in Italy, France, Germany, or England, began by __13__ to show how many important __14__ could be discovered by observation. Before Galileo, learned men believed that large bodies fell more __15__ towards the earth than small ones, __16__ Aristotle said so. But Galileo, going to the __17__ of the Leaning Tower of Pisa, let fall two __18__ iron balls and proved Aristotle was wrong. It was Galileo's __19__ of going direct to nature, and proving out __20__ and theories by experiment that has led to all the discoveries of modern science.

　　语篇解读：本文为一篇说明文。说明一个成功的科学家必须是一个好的观察者，其次还需具备一些素养。

　　1．A.use　　　　　　　 　 B．time

　　C．speed D．trust

　　解析：选A　make full use of"充分利用......"。

　　2．A.worked B．based

　　C．lived D．written

　　解析：选B　be based on"以......为基础"。

　　3．A.reason B．cause

　　C．advice D．result

　　解析：选A　空格后的for暗示应选reason。the reason for ..."......的理由"；the cause of ..."......的起因"，两者皆为习惯搭配。

　　4．A.thinks B．checks

　　C．has D．learns

　　解析：选B　后文"做实验来证明这些想法"暗示应用check，意为"核实；核查"。

　　5．A.natural B．physical

　　C．ancient D．modern

　　解析：选D　the rise of modern science"现代科学的崛起"。根据下文Roger Bacon提出通过观察和实验来了解科学可知。本文最后一句中的modern science也是提示。

　　6．A.date B．keep

　　C．look D．take

　　解析：选A　此处date用作动词，构成date back短语，意为"追溯到......"。keep back"隐瞒；阻止"；look back"回顾"；take back"收回"。

　　7．A.study B．time

　　C．year D．birth

　　解析：选B　追溯到这位科学家所生活的时代。time此处意为"时代"。

8．A.both B．each