英语常见时态(4)

1如何去掉羞怯那层茧

1）This time next day they will be sitting in the cinema.

2）What will you be doing at six tomorrow evening?

4．完成进行时

（现在、过去、将来）完成进行时是（现在、过去、将来）完成时的强调形式，将放在完成时态部分讲述。

三、完成时态

完成时态通常表示已完成或从事的动作。它可分为：

1．现在完成时

（1）现在完成时用来表示对目前状况仍有影响的，刚刚完成的动作（常与yet，already，just连用），或者过去某一时刻发生的，持续到现在的情况（常与for，since连用）。例如：

1）I have just finished my homework.

2）Mary has been ill for three days.

（2）常与现在完成时连用的时间状语有：since, for, during, over等引导出的短语；副词already, yet, just, ever, now, before, often, lately, recently等；状语词组this week (morning, month, year), so far, up to now, many times, up to the present等。例如：

1）I haven’t been there for five years.

2）So far, she hasn’t enjoyed the summer vacation.

3）There have been a lot of changes since 1978.

（3）完成时态可用在下列结构中：

This (That, It) is (was) the first (second…) time +定语从句；This (That, It) is (was) the only (last) + n +定语从句；This (That, It) is (was) +形容词最高级+ n +定语从句。如果主句的谓语动词是一般现在时，从句的谓语动词通常用现在完成时；如果主句谓语动词是一般过去时，从句谓语动词通常用过去完成时。例如：

（1）This is one of the rarest questions that have ever been raised at such a meeting.

（2）There was a knock at the door. It was the second time someone had interrupted