Ⅰ. 根据语境和提示写出正确的单词
1. This is an age(时代) of constant change of events.
2. The invention(发明) of printing caused important changes in society.
3. Science and technology(技术) are No. 1 productive forces.
4. We should stick to the principles and be flexible(灵活的)as well.
5. The compass(指南针) is the invention that China is started in the origin.
6. It was the secrets of heaven and earth that I desired(渴望) to learn.
7. The film’s special effects are particularly impressive (令人难忘的).
