Ⅰ.单词拼写
根据汉语或首字母提示写出下列单词
1．As the saying goes “Mystery creates wonder and wonder is basis of man's desire(渴望) to understand it.”
2．He put down the election procedure(程序) for astronauts on the blackboard.
3．It is known that Yang Liwei is a famous astronaut(宇航员) in China.
4．They had to do a lot of mental and physical training before being sent into space.
5．He must be intelligent enough to be admitted into the key university.
6．Now the country has succeeded in making rockets that could escape Earth's gravity．
7．Unfortunately astronauts on America's Challenger died during the launch(发射)．
