摘要:过去完成时 ①表示在过去某一时间以前已经完成的动作. He had shut the door before the dog came up. Everything had been all right up till this morning. ②表示动作或状态从过去某个时刻开始一直延续到另一个过去时刻才完成.甚至还要继续下去.At the age of ten,he had learned 500 English words.He had been ill for a week when we learned about it. ③过去未曾实现的意图.打算或希望(只限于think, want, plan, mean, intend, hope, expect, suppose.wish, want等动词). I had wanted to pay a visit to you yesterday, but the rain prevented me. 我本来想昨天拜访你的.但是下雨. 注意: ▲过去完成时必须以过去某一时刻为基点.即“过去的过去 .因此只有在和过去某时或某动作相比较时才用到它, ▲before, after本身表示时间的“前 “后 明显.因此可用一般过去时代替过去完成时. He (had) left before I arrived.

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