Ⅰ、1、whenever
2、sleepy
3、habit
4、fever
5、temperature
Ⅱ、1 - 5 B D D D C
Ⅲ、1、What' the trouble with you?/What's the matter with you?/ What's wrong with you?
2、How are you feeling now?
3、Let me take your temperature.
4、Nothing serious.
5、Thank you very much.
Ⅳ、1、The more;the fewer
2、doing
3、after
4、keep fit
5、cleaning