3. The injury to their key player could be a decisive factor in the game. 　 他们主力队员受伤可能是这场比赛胜负的决定性因素。

(14)1. This meal is my treat, so put your money away.这顿饭我请客，你把钱收起来吧。 2. This boy is being treated for a heart condition.这个男孩正在接受心脏病治疗。 3. My mother always treats us like children.我妈妈总把我们当孩子看待。 4. This delicate glass must be treated with care.这精巧的玻璃杯处理时要小心。

2. Don't injure yourself with that tool.不要让那工具伤害到你。

5.The whole city was burned to the ground.整座城市都被伤光了。

(13)1. She was injured badly in the accident.她在事故中受重伤。

8.①are proud of②are proud of ; to be held ③What made the school proud

(11)1. A dictionary is an invaluable aid in learning a new language.在学习一种新语言时，词典是非常有用的工具。 2. We were greatly aided in our investigation by the cooperation of the police. 我们在调查的过程中得到警方的大力协助。

(12)1. She is burning to tell you the news.她急于要告诉你这消息。 2. Paper burns easily. 纸容易着火。(本题强调事物的性质，用主动)另：The pen writes smoothly. The clothes wash well. 3. He died of the burns he received in the fire.他因在火灾中受烧伤而死。 4. Half the candle had burnt away.蜡烛已烧去一半。

7.①carry out ②you should carry it out③carried out ④carry on / go on with their discussion.

6.①stick to our plan②stick to it③Don't stick your head

5.①The doctor’s treatment ②Treat yourself to a glass of wine ③have been treated

4.①amazing ；after an injury②that; recover from his injury③The injured

3.①authentic news report②authentic.

2.①get over our present difficulties②presented a sum of money③presenting them with flowers