1. B)根据语境从方框中选择恰当的单词填空，有的需要变换形式，每词限用一次。

well，ill，proud，sleep，discover

1. （1） My sister won the competition yesterday．We areof her．

3. （2） You'd beaer not go to bed late，or you'll feeltomorrow．

5. （3） Jenny can't go to school this term because she has got a serious．

7. （4） Scientists haven'tlife outside the earth yet.

9. （5） —How is my grandfather,doctor?

   —He's very．Don't worry．