高二第七课教学辅导材料

1.在过去完成时中,往往有明显的时间状语。如:By 1914 Einstein had gained world fame.到了1914年,爱因斯坦已闻名世界。By the end of June they had treated 30,000 patients.到六月底为止,他们已经治疗了三万个病人。Up till then we had only covered half the distance.到那时我们才走了一半路程。The play had already started when We got to the theatre.我们到剧场时戏已经开演了。