公共英語考試二級口語輔導(dǎo)練習(xí)(16)

延續(xù)動詞與瞬間動詞

1)用于完成時的區(qū)別

延續(xù)動詞表示經(jīng)驗、經(jīng)歷; 瞬間動詞表示行為的結(jié) 果，不能與表示段的時間狀語連用。

He has completed the work. 他已完成了那項工作。 (表結(jié)果)

I've known him since then. 我從那時起就認識他了。(表經(jīng)歷)

2)用于till/until從句的差異

延續(xù)動詞用于肯定句，表示"做……直到……" 瞬間動詞用于否定句，表示"到……，才……"

He didn't come back until ten o'clock.

他到10 點才回來。

He slept until ten o'clock.

他一直睡到10點。

典型例題

1. You don't need to describe her. I ___ her several times.

A. had met　B. have met　C. met　D. meet

答案B. 首先本題后句強調(diào)對現(xiàn)在的影響，我知道她的模樣，你不用描述。再次，several times告知為反復(fù)發(fā)生的動作，因此用現(xiàn)在完成時。

2.——I'm sorry to keep you waiting.

——Oh, not at all. I ___ here only a few minutes.

A. have been　B. had been　C. was　D. will be

答案A. 等待的動作由過去開始，持續(xù)到現(xiàn)在，應(yīng)用現(xiàn)在完成時。