be to do sth.有多层含义,多表示将来0.
1.表示按计划或安排要做的事.例如:
When are you to leave for home?你什么时候回家?
She is to be married next month.她将于下个月结婚.
The Queen is to visit Japan in a week’s time.女王将于一周后访问日本.
这种结构也可用于过去.was / were to do sth.表示曾经计划要做的事,但不表明计划是否被执行,或表示“命运(即命中注定要发生的事)”,而非计划;was / were to have done sth.表示未曾实现的计划.例如:
I felt nervous because I was soon to leave home for the first time.我感到很紧张,因为我很快就要首次离开家了.
They said goodbye,little knowing that they were never to meet again.他们告了别,不知道以后再也不会见面了.
We were to have told you,but you were not in.我们本来想告诉你的,但是你不在家.
2.表示“应该”,相当于should,ought to.例如:
You are to report to the police.你应该报警.
What is to be done?应该怎么办呢?
3.表示“必须”,相当于must,have to.例如:
The letter is to be handed to him in person.这封信必须亲手交给他.
You are to do your homework before you watch TV.看电视之前你得先做完作业.
4.表示“想,打算”,相当于intend,want.例如:
If we are to be there before ten,we’ll have to go now.如果我们要在十点前到,我们现在就得走.
5.用于第一人称疑问句,表示征求对方意见.例如:
Am I to go on with the work?要我继续完成这项工作吗?
What are we to do next?我们下一步该怎么办?
6.用于否定句,表示“禁止”,相当于mustn’t.例如:
The books in this room are not to be taken outside.这个室内的书籍不得带出室外.
You are not to smoke in the reading-room.你不可以在阅览室里吸烟.
7.表示“可以,可能”,相当于may,can.例如:
The news is to be found in the evening paper.这条消息可以在晚报上见到.
Such people are to be found everywhere.这种人到处都有.
She is nowhere to be found.在哪里也找不着她.
猜你喜欢
- 1如图,在▱ABCD中,已知对角线AC和BD相交于点O,△AOB的周长为15,AB=6,那么对角线AC+BD=_.
- 22012年上海居民用的水费、电费、煤气费的收费标准分别是多少?
- 3圆柱与圆锥底面积相等,圆柱的高是圆锥的三分之二,圆锥的体积是12立方厘米,那么圆柱的体积是多少立方分米
- 4They hired a bus for home,____ they would not have to wait in line for tickets any more.
- 5有一个长方形,它的底面是一个正方形,它的表面积是170平方厘米,如果用一个平行于底面的平面将它截成两个
- 6{上下限是1和0 [ln(1+x)dx]}'=?
- 7黄铜是一种重要的金属材料,它是铜和锌的合金.为了测定某黄铜样品中铜的质量分数,取10g该黄铜加入一定量的稀硫酸中,恰好完全反应,生成0.1g氢气.试求: (1)该黄铜样品中锌的质
- 8化简 a²+2a分之a²•(a-2分之a²-a-2分之4 )
- 9八年级新观察答案上册66页第4题:已知三角形ABc中,cA=cB,点o为Ac、BC两边的垂直平分线的交点,点p为直线AB上一动点,pE//Ac,交直线BC于E,点F为直线上-点,且CF=pE,连oF、EF,连OF、EF,设角ACB为X,若X
- 10溶液导电的原因?