文档介绍：Unit1 Past and present
Grammar
Present perfect tense
现在完成时
完成句子:
1. 近几年无锡发生了巨大变化。(3种)
2. 他爸爸自出生以来就一直住在上海。
Wuxi has changed a lot over the years.
Great changes have taken place in Wuxi over the years.
There have been great changes in Wuxi over the years.
His father has lived in Shanghai since he was born.
3. 你表哥曾搬过家吗?从来没有。
Has your cousin ever moved house? Never.
4. 我父母十五年前结婚的。
5. 以前曾这里有个钢铁厂,现在已变成一个饭店了。
My parents got married 15 years ago.
There was once a steel factory here.
Now it has turned into a restaurant.
6. 你应该采取行动来提高你的英语。
7. 那儿的污染很严重,因为工厂的工人过去常往河里倒废物。
8. 他过去住在香港,但现在已搬到伦敦。
You should take action to improve your English.
The pollution there is very serious because the workers in the factory used to put the waste into the river.
He lived in Hongkong in the past.
But now he has moved to London.
Present perfect tense
现在完成时
I have lived in Yangjian since 1998.
自从1998年以来,我就一直住在羊尖。
I have taught English for about 20 years.
我教英语已教了大约20年了。
1.(“居住”这个动作发生在过去并且持续
到现在,可能还要继续延续下去。)
(“教英语”这个动作也是发生在过去并且
延续到现在,可能还会继续延续下去。)
I have already visited Beijing twice.
我参观过北京两次。
3. (“参观”这个动作到现在为止发生了两次。)
(谈论到现在为止,动作发生了多少次。)
I have travelled to many places of interest in China.
我已经去过中国的很多名胜古迹。
2.(“travel”这个动作发生在过去并跟现在
有联系—我已经认识了中国的很多地方。)
现在完成时的含义(共三点)
(1)现在完成时谈论发生在过去并持续到现在,也许还会持续下去的动作或状态。可以和表示延续的时间状语连用。如for、since 等引导的时间状语。(注意:句中谓语动词要用延续性动词)
(2)现在完成时谈论发生在过去并跟现在有联系的动作。(汉语中常用“已经”、“过”、“了”等表达) 通常与时间副词just(句中), already(句中,句末), before (句末), yet(句末), never(句中), ever(句中),recently (句末)等连用。例如:
。
Eddie has just eaten my food.
。
I have never heard of that before.
?
Have you ever ridden a horse?
。
She has already finished the work.
。
We haven’t finished our homework yet.
。
I haven’t heard from him recently.