1 . As the curtain prepares to fall on the six-day 4th Asian Para Games on Saturday, the continental sports gala will say good bye to the ______ (participate), filled with Chinese culture, music, and above all, love. (所给词的适当形式填空)

2 . First, we put on our spacesuits, which allow us to breathe in space and protect us from __________ (expose) to the cold and radiation. (所给词的适当形式填空)