1 . 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)

2 . 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

3 . Yesterday, I climbed to the mountain top to __________ the fresh air. Although I became __________when I was on the top, the breath of fresh air was worth it. (breath) (所给词的适当形式填空)

4 . 词性转换
1. breath n. 呼吸的空气→________adj. 气喘吁吁的→________v. 呼吸
2. 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
3. astonish vt. 使十分惊讶；使吃惊→________n. 吃惊，惊讶→________ adj. 惊讶的→________adj. 令人惊讶的
4. mist n. 薄雾；水汽→________adj. 多雾的；模糊的
5. advertise v. 做广告；登广告；宣传→________n. 广告；启事→________n. 广告商
6. photograph n. 照片 vt. 给……照相→________n. 摄影师；拍照者→________n. 摄影；摄影术

5 . He was ________(breath) after climbing ten floors. （所给词的适当形式填空）

7 . After climbing all the stairs of the building, I was already _______ (breath)．(所给词的适当形式填空)

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

9 . Here they stood, staring, b________(气喘吁吁的) with surprise. （根据中英文提示填空）

10 . I was completely ________ (breath)when I got to the top of the mountain. (所给词的适当形式填空)