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零基礎(chǔ)學(xué)英語需要記憶的語法知識(shí)點(diǎn)

回答
瑞文問答

2021-08-28

過去完成時(shí)
過去完成時(shí)是一個(gè)相對(duì)時(shí)態(tài),表示過去的過去,只有在兩個(gè)過去發(fā)生的動(dòng)作相比較時(shí)才可顯示出來。
例:As soon as we got to the station, the train had left.
注:主從句表達(dá)的動(dòng)作緊接時(shí),即兩動(dòng)作發(fā)生的時(shí)間沒有明顯時(shí)間上的懸殊或空檔時(shí),主從句都可用一般過去時(shí)。

擴(kuò)展資料

  例: Where did your brother study before he joined the army?

  過去完成時(shí)可表示截止過去某一時(shí)間動(dòng)作的總或動(dòng)作的結(jié)束。

  例:By the end of last month. We had reviewed four books

  By eight o`clock, he had finished his homework.

  與這個(gè)時(shí)態(tài)連用的時(shí)間狀語常有:

  by 1985, by eight o`clock, by then, by the end of last month, by the time when, when, as soon as, before 等連詞引導(dǎo)的時(shí)間狀語從句,表示主句動(dòng)作結(jié)束的時(shí)間。

  現(xiàn)在進(jìn)行時(shí)主要用于:

  表示現(xiàn)在或現(xiàn)階段正在進(jìn)行的動(dòng)作。

  例: Listen, someone is crying.

  What are you doing these days?

  代替一般現(xiàn)在時(shí),表示經(jīng)常性動(dòng)作或狀態(tài),而含有某種感情色彩。

  例: How are you feeling today?

  你今天感覺怎樣?(顯得親切)

  He is doing well in his lessons.

  他的'功課很好。(贊揚(yáng))

  You are always boasting.

  你老愛吹牛。(厭煩)

  動(dòng)詞 go, come, leave, arrive 等表將要發(fā)生的動(dòng)作時(shí)。

  例:They are leaving for Shanghai.

  與這種時(shí)態(tài)連用的時(shí)間狀語常有:

  now, these days, recently, this week 等。