|
4．一般过去时 ①I didn’t know，I didn’t mean，I thought等表示“原来不知 道”“本没想”“原以为”。 Sorry，but I didn’t mean to hurt you. ②用于虚拟语气中。 It is time that we went to bed. 固定句式或结构中的动词时态 1.This/It is the first/second time＋that从句。that从句中用现在完成时。 如把is改为was，则从句中用过去完成时。 This is the first time I have come here. It was the third time(that)he had made the same mistake. 2．It is/has been＋一段时间＋since 从句。since从句中用一般过去时。 如 把is改为was，则从句中用过去完成时。 It was ten years since we had had such a wonderful time. 3．was/were about to do...when... 意为“将要做……(这时)突然……”。 I was about to go out when the telephone rang. 时态的区别 1.一般过去时与现在完成时 ①一般过去时表示过去某时间发生的动作或情况，与现在没有什么 联系，常与表示过去的时间状语连用。现在完成时则表示从过去 开始持续到现在的动作或情况，强调对现在造成的影响或结果， | 
