Ⅰ、1、dirty
2、follow
3、remember
4、kitchen
5、before
Ⅱ、1、relaxing
2、noisy
3、to make
4、dishes
5、more
Ⅲ、1 - 5 C B D A C
Ⅳ、1、be，strict with
2、think about
3、keep；clean
4、have fun
5、go out on
Ⅴ、1、Don't go
2、can't，or
3、don't have to
4、Why can't
5、They make rules to help us.
Ⅵ、1、They must line up outside the cafeteria door in an orderly manner.
2、They have to clean their tables and the floor.
3、They must talk in "low voices".
4、No，they can't.
5、Before throwing food away.