时态的总结 第1篇
概念: 过去发生或已经完成的动作对现在造成的影响或结果,或从过去已经开始,持续到现在的动作或状态。
时间状语 : since…,for…,in/during the past few/two years, ever, yet, already, recently, over the years(几年来,这么多年来),主(现完)+since +从(一过),just(注意和just now的区别),so far, till now
基本结构: have/has + done 否定形式: have/has + not +done.
一般疑问句: have 或 has+主语+ done
Helen ________ in Nanjing for twenty yearsThe readers are all very happy because they ________ a new book.(receive)
时态的总结 第2篇
1.概念:表示现阶段或说话时正在进行的动作及行为。
2.时间状语:Now, at this time, days, etc. look, listen
3.基本结构:主语 + be + doing + 其它
4.否定形式:主语 + be + not +doing + 其它
5.一般疑问句:把be动词放于句首。
6.例句:How are you feeling today你今天感觉如何?
He is doing well in his lessons.在课上他表现得很好。
时态的总结 第3篇
概念: 以过去某个时间为标准,在此以前发生的动作或行为,或在过去某动作之前完成的行为,即“过去的过去”。
时间状语: by the end of last year(term, month…) ,by+过去的时间,主(过完)+before+从(一过)
基本结构: had + done. 否定形式: had + not + done.
一般疑问句: had 放于句首。
They ________ in Nanjing by the end of last year.(be)
The plane ___________ off before/when we got to the airport.(take)
时态的总结 第4篇
1.概念:表示动作从某一时间开始一直延续到将来某一时间。是否继续下去,要视上下文而定。
2.基本结构:shall/will have been doing
3.例子:I shall have been working here in this factory for twenty years by the end of the year.到今年年底,我将在这个工厂工作20年了。
If we dont hurry up the store will have been closing before we get there. 咱们如不快一点儿,等我们到了那儿,店门就会关了。