A. worthy                     B. wise                         C. sword               D. wildlife

A. worthy                     B. wise                         C. sword               D. wildlife

A. centimeter                     B. court                 C. clothing                   D. candy

A. weapon             B. breast                C. breathe                     D. leather

A. mask                B. assist                        C. afterwards         D. vast

根据所给的语境，在空白处填入合适的单词，使得上下语义连贯通顺。每空一词。

A successful scientist is generally a good observer who   1   full use of the facts he observes. He doesn’t accept ideas which are not   2   on obvious facts,   3   he refuses to accept authority (权威) as the only reason for truth. He always checks ideas carefully and make experiments to   4 

them.

Galileo, however,   5   lived   6   1564 and 1642, was the greatest of the great men. Before him, learned men believed that larger bodies fell more   7   towards the earth than   8   ones. But Galileo, going to the   9   of the leaning Tower of Pisa, let fall two solid stones and proved it was wrong. It was his spirit that has led   10   all the discoveries of modern science.