1 . After running, he was _________. He __________ deeply before leaving the playground. (breath) (所给词适当形式填空)

2 . Yesterday,I climbed the mountain top to ________the fresh air. Although I became ________when I was on the top,the ________of fresh air was worth it. (breath) (所给词的适当形式填空)

3 . In order not to miss the train, Blair ran so fast that he became _____ (breath) in no time. (所给词的适当形式填空)

4 . 词性转换
1. please vt. & vi. （使）高兴；（使）满意→________________adj. 令人愉快的；友好的→________________adj. 高兴的；满意的→________________adj. 令人愉快的→________________n. 快乐；乐趣
2. mass n. 团；堆；许多；大量→________________adj. 巨大的；非常严重的
3. breath n. 呼吸的空气→________________adj. 气喘吁吁的→________________vt. & vi. 呼吸
4. freeze vi. & vt. (froze，frozen) 结冰；（使）冻住→________________adj. 极冷的；冰冻的→________________adj. 结冰的；冻僵的；冷冻的
5. frost n. 霜；严寒天气；霜冻vt. 使蒙上霜 vi. 结霜→________________adj. 结霜的；霜冻的
6. astonish vt. 使十分惊讶；使吃惊→________________adj. 惊人的；令人惊讶的→________________adj. 感到惊讶的→________________n. 惊讶
7. mist n. 薄雾；水汽→________________adj. 多雾的；模糊的
8. advertise vi. & vt. （为……）做广告/宣传；征聘→________________n. (informal ad) 广告；启事→________________n. 广告商
9. photograph n. 照片 vt.（为……）拍照 vi. 上相，上镜→________________n. 摄影师；拍照者→________________n. 摄影；摄影术

5 . She was ________ (breath) after running up the stairs.(所给词的适当形式填空)

6 . After climbing all the stairs, I was already __________.（用适当的词填空）