题目内容：

Have you ever heard of spring fever? When we have spring fever, are we really sick? Originally, yes. 1. But now people used it to mean a sudden increase of romantic feelings.

These days, we use “spring fever” to describe a restless feeling after the long, cold days of winter. 2. It is also a verb that means something happening or appearing quickly.

Imagine that you are resting in the chair when suddenly you see a mouse run across the floor. You spring into action! You jump from the chair and run after the mouse! 3. And it works! But when you tell your roommate that you caught a mouse in a trap, tears spring from her eyes. You feel badly, but she really should have told you about her pet mouse Charlie!

4. You say to her, “You can’t just spring that on me! I’ll need time to find another roommate!” But then you think that maybe it’s for the best. Every time you see her you feel guilty about Charlie. 5. She always expects you to buy her things: she wants you to spring for lunch, spring for movie tickets, and sometimes even spring for groceries.

So, when you spring for something, you pay for someone else.

A. Many people suffer a lot from it.

B. You roommate turns her back on you.

C. But the word “spring” is not just a season.

D. Spring fever used to refer to an actual illness.

E. Then your roommate is moving out tomorrow.

F. That night you spring a trap with some cheese in it.

G. And anyway, she does something that really annoys you.