Unit8 Adventure-语法篇
_______________________________________________________________________________
_______________________________________________________________________________
1、认识,理解并掌握现在完成进行时
2、辨析现在完成时和现在完成进行时的区别
3、熟悉现在完成时和相关的时间状语
一、课时重点
1. 我们用现在完成进行时表示:
过去开始的反复或正在进行的动作。例如:
I've been going everywhere by bike for the last two years.
最近的过去开始的对现在有影响的动作。例如:
He's been doing his science project all night。(that's why he is so sleepy now)
形式:
现在完成进行时的构成是:主语+have/has+been+doing
You have been studying very hard.
Has Steve been complaining about it?
2. 现在完成时和现在完成进行时的辨析:
我们用现在完成时描述一个完成的动作(成果),用现在完成进行时谈论未完成的动作,例如:
I have read Hamlet (我已经读过了)
I have been reading Hamlet (我还没读完,一直在读)
现在完成时关注动作的结果,特别是谈到数字或数量时;现在完成进行时关注动作本身,特别是解释动作可见的结果时。例如: