be to do sth.
(1)表示安排,意向或目的
The U. S. President is to visit China.美國總統(tǒng)將訪問中國
(2)(表義務(wù))應(yīng)該做……,必須做……
You are to be back by six o‘clock.你要在6點(diǎn)之前回來
(3)(表可能)會(huì)做……
How am I to know what has become of him?我怎么知道他的遭遇如何?
(4)注定(通常用過去時(shí))
He came to power,but was to pay dearly for it,soon he was killed.
他得到了權(quán)力,但是為此付出了昂貴的代價(jià),不久他就被暗殺了
(5)(用于If...were to do句型)如果……的話
If you were to succeed,be sure to make full use of your time. 你如果想成功,就得充分利用時(shí)間
表將來的特殊形式:
be going to do表示打算去做成可能發(fā)生某事
be to do表示計(jì)劃好做某事
be about to do表示既將(正要)做某事,要友生的動(dòng)作,其后不接具體的時(shí)間狀語
go , come , leave,arrive等少數(shù)轉(zhuǎn)移性不及物動(dòng)詞的現(xiàn)在進(jìn)行時(shí)表示按計(jì)劃、妥排即將發(fā)生的動(dòng)作,并不那么
“固定”
leave, open等詞的一般現(xiàn)在時(shí)可表示“按照時(shí)刻表或日程安排發(fā)生某事”
21. The bottom ten countries are all African countries,with Sierra Leone(in West Africa)at the bottom of the list.
處于末端的十個(gè)國家均是非洲國家,塞拉利昂(西非)排在最后。
with Sierra Leone at the bottom是“with +賓語+介詞短語”構(gòu)成的復(fù)合結(jié)構(gòu),在句中作狀語“witli+賓語+
介詞短語”這種結(jié)構(gòu)常在句中作狀語,表方式、原因、伴隨動(dòng)作等
The boy came in,with a red rose in his hand.男孩進(jìn)來了,手里拿著一枝紅玫瑰
“with十復(fù)合賓語”除用介詞作賓語補(bǔ)足語外,還有以下幾種形式:
( 1 )with+n./pron.+to do(不定式表示將要發(fā)生的動(dòng)作)