②作副词，单独使用，在句中作时间状语，常与现在完成时或现在完成进行时连用。

③作连词，引导时间状语从句，主句常用现在完成时或现在完成进行时。

I've been so sorry ever since.

从那以后我一直感到内疚。

Her father has been down­and­out ever since the factory closed.

自从工厂关闭后，她的父亲一直贫困潦倒，灰心丧志。　

①ever since要与现在完成时连用，有时候根据语境还可用现在完成进行时，也可将ever省略只用since(可用作连词和副词)。

②与ever since类似的时间状语还有so far，up till now，by now，recently，lately，since last month，in/for the past＋一段时间，since...ago等。

完成句子

①从那时起，我每天都练习打篮球。

________________，I have practised playing basketball.

②自从我们在学校认识以来我们一直是朋友。

We've been friends________________________________________________________________________.

【答案】　①Ever since then　②(ever)since we got to know each other at school

4．persuade vt.说服，劝说

Two years ago she bought an expensive mountain bike and then she persuaded me to buy one.(P18)

两年前她买了一辆很贵的山地车，然后她说服我也买了一辆。

He tried to persuade her but failed.

他试图说服她，但是没有成功。

No matter how hard we tried to persuade him，he wouldn't listen.

无论我们如何努力去说服他，他也不听。

persuade＋sb.to do sth.sb.into doing sth.说服某人做某事sb.not to do sth.sb.out of doing sth.说服某人不要做某事sb.of sth.sb.that从句使某人相信某事

I'll persuade him to join our club.

我将劝他加入我们的俱乐部。

How did you persuade your father into lending us the money？你是如何说服你父亲借给我们钱的？

They couldn't persuade him of their sincerity.

他们无法使他相信他们的诚意。

【提示】persuade意为"说服，劝服"，advise"劝说，(不一定)说服"。