资源资源简介：

( 1 ) 重要，重要的
    1. Anybody can see the _________ of good health.
    2. It is __________ to see that the brakes on your bicycle work properly.
    3. More __________, the teacher should make the total meaning of the dialogue clear to the students before having them repeat it. 
( 2 ) 发明，创造
    1. Necessity is the mother of __________.
    2. He __________ a story to explain why he was late.
    3. It was absolutely new method __________ by himself.