1. 根据括号中的所给单词或汉语写出适当的单词。

1. （1） Yue Fei is one of the national (英雄) in our country.

3. （2） Jim (主动提供) me something to eat, but I was not hungry.

5. （3） Could you speak (法语) besides English?

7. （4） I'd like (讨论) difficult problems with my best friend.
   

9. （5） I think (物理) is very interesting. I like it best.