22. hold on to 抓住

21. get on one’s feet (艰难的)站起来 get up; stand up

20. drag拖拉(重物)(比较艰难缓慢有阻力)drag oneself along拖着沉重的步子走pull 拉；扯(应用范围比较广)

pull a tooth 拔牙 pull the door open 拉开门 pull at 拉扯 pull up 拉起来；拉上来

draw 拉(比较从容、平稳不费力) draw one’s attention 吸引注意；draw a conclusion 得出结论 draw back 后退 draw money from bank 从银行取钱 draw near 就要来临；逼近

19. sweep sb down 把...冲到了

18. be upon 逼近； 临近

17. before +从句 还没来得及...

16. advance towards 朝…前进

15. look around 环顾； 四处看

14. hear/see sb. doing sth 听见/看见某人正在做某事hear/ see sb do sth 听见/看见某人做过某事 (五看二听一感觉)

13. a natural disaster 自然灾害