一、將來進行時
表示特來某一時刻成某一階段正;在進行的動作,常與soon,this time tomorrow等時間狀語連用。
2.表示預料不久要發生或勢必要發生的動作。如:
After you take the medicine, youwill be feeling much better服藥之後,你會感覺好得多。
3.表示有禮貌地詢問對方或別人計劃要做的事。如:Won't you be coming with us?你不和我們一起去嗎?
二、現在完成時
1.表示一個動作開始於過去,持續到現在(也許還將持續下去)。表示從過去持續到現在並包括現在在內的時間狀語有:lately, recenly, in the last/past few days/years, since then,up to now,so far等。如:
In the past three years, the cooperation between our two countries has been successful.
在過去的三年裡,我們兩國的合作很成功。
He has been busy writing a book recently.
最近他一直忙著寫書。
2、表示發生在過去的事情,對現在產生的影響。注意這時說話者說話的重心,在過去的事情對現在產生的影響上。
3.This/lt is the first time+that從句,that從句的謂語動詞要用現在完成時。
4.在條件、時間、讓步狀語從句中,表示將來某時間以前已完成的動作。
I will not believe you unless I have seen it with my own eyes.
除非我親眼看到,否則我不會相信你的。
5.瞬間動詞又叫非延續性動詞、終止性動詞。瞬間動詞可用於完成時態,但不可以接表示一段時間的狀語,若要接表示一段時間的狀語,需要做一些相應的變換,瞬時動詞的否定式可以接表示一段時間的狀語。如:
( X)He has come to Beijing since last year.
(V)He has lived in Beijing since last year.
( х )He has joined the army for 3 years.
(V)He has served in the army for 3 years.
(V)He has been a soldier for 3 years.
(V)lt has been 3 years since he joined the army.