As their living conditions were greatly improved, the workers worked still harder. He was listening attentively in class, his eyes fixed on the blackboard. 他上课专心听讲,限猜紧的着黑板 He was listening attentively in class, and his eyes were fixed on the blackboard. The task completed, he had two months'leave.在务完成以后,他休 了两个月的假。(= When the task had been completed, he had two months'leave 比较: 动词不定式表示动作没有发生或即将发生,动词cd形式表示动作 已经结束,动词ig形式往往表示动作正在进行。 The manager looks worried, many things to settle..经理看上去很着 急,有这么多的享情要处理。(喜情还投有处理,历且是由经理本 人来处理,用不定式 to settle) The manager looks relaxed, many things settled.许多事情已经处 理好了,经理看上去很轻松。(事情已经处理好了,用动词-ed 形式seld表示动作已经结柬) The food being cooked, the boy was watching T.小孩一边做饭, 一边看电视。(两个动作同时进行) The food cooked, the boy went to bed.饭做好了,小孩去睡了。(两= As their living conditions were greatly improved, the workers worked still harder. He was listening attentively in class, his eyes fixed on the blackboard. 他上课专心听讲，眼睛紧盯着黑板。 = He was listening attentively in class, and his eyes were fixed on the blackboard. The task completed,he had two months' leave. 任务完成以后，他休 了两个月的假。（=When the task had been completed,he had two months' leave.） 比较： 动词不定式表示动作没有发生或即将发生，动词-ed 形式表示动作 已经结束，动词-ing 形式往往表示动作正在进行。 The manager looks worried，many things to settle. 经理看上去很着 急, 有这么多的事情要处理。（事情还没有处理，而且是由经理本 人来处理，用不定式 to settle） The manager looks relaxed, many things settled. 许多事情已经处 理好了， 经理看上去很轻松。（事情已经处理好了，用动词-ed 形式 settled 表示动作已经结束） The food being cooked, the boy was watching TV. 小孩一边做饭， 一边看电视。（两个动作同时进行） The food cooked, the boy went to bed. 饭做好了，小孩去睡了。（两