Now,dressed in a blue uniform and with a rifle over his shoulder, the prisonermarched boldly up and down in front of the camp. He could hear shouting in thecamp itself.
...Then,jumping into the car, he drove off as quickly as he could.
请教专家：这里的itself指的是什么，是什么使用方法和含义？为何不是was able to hear 呢？dressed in和 jumpinginto 这里都是表示“随着”状况吗？谢谢老师！
Now, dressed in a blue uniform and with a rifle over his shoulder, the prisoner marched boldly up and down in front of the camp. He could hear shouting in the camp itself.
...Then, jumping into the car, he drove off as quickly as he could.
1. 这里的itself 指camp，是其同位语，强调喊叫声来自营地本身。
2. 为何不是was able to hear 呢？——可以用简单的could hear，为何要用复杂的 was able to hear 呢？can 或could 与感官动词连用，表示人拥有了这种感知能力。既然有了这种能力，那样，具体的感知行为自然就会做到。所以，像 see, hear, smell, taste, feel 等这种动词用 can 或 could 就能表示结果。无需用 was able to hear。
3. dressed in 和 jumping into 这里都是表示“随着”状况吗？——随着是随着，状况是状况，这是两个不同定义。“随着” 是状语的一个类别。大家常说“随着状语，方法状语，时间状语”等。其实，前者是形容词短语作“方法状语”，主要说明谓语动词动作发生的方法。后者是目前分词短语作时间状语，用来表示它与谓语动词动作的先后。
