1．Over the years many great a____________ have been made in the different fields of science.

2．The astronauts soon got used to the c           of weightlessness.

3．The plan of c           had been made long before the war broke out.

4.  His failure has no c          with the quality of his work.

5.  At that time , there were many  m_________ teams organized by the local government.

二、用所给动词的正确形式填空。

1．Song Chingling          (devote) all her life to the Chinese revolution and construction.

2．My farther often _________(encourage) me to overcome the difficulties.

3．Jody Williams and her ­­­_________ (organize) were given the Nobel Peace Prize in 1997.

4．The thief _______(catch) and put into prison last night.

5．The Chinese fought hard for 8 years and  _______(drive)  the Japanese aggressors out of China.