be to do 的用法详解

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远景教育17
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be to do共有八种用法:表示坚决的命令、表示“计划”或“安排的事项”、表示“可能性”、表示“意图”、表示“应该”、表示“注定”“不可避免”“必然发生”、用于虚拟语气,表示一种假设、有“期待将来”的含义。

1.表示坚决的命令,可译为“必须”。

(1)This naughty boy is to stay here until the class is over.这个淘气的男孩必须在这里站到下课。

(2)No one is to enter this building without the permission of the security guard.未经保安人员的允许,任何人都不得进入这栋楼。

2.表示“计划”或“安排的事项”。

(1)Betty is to be married soon.贝蒂很快就要结婚了。

(2)An insurance agent is to meet us this afternoon.今天下午会有一个保险代理人来跟我们见面。

3.表示“可能性”。

(1)Are you to pay the debt for your wife?你会不会帮你的妻子还债?

(2)The lovely puppy is nowhere to be found.哪儿也找不到这只可爱的小狗。

4.表示“意图”“决心”或“打算”。

(1)If you are to be there on time, you had better hurry.要想准时到达那儿,你最好快点。

(2)If all of us are to remain friendly, we must be sincere with one another.要想保持友谊,我们都必须真诚相待。

5.表示“应该”。

(1)You have done so well. You are to be rewarded.你做的很好,你应该受到奖赏。

(2)Such nasty questions are to be avoided.你应该避免这种下流的问题。

(3)You are to call the police.你应该报警。

6.表示“注定”“不可避免”“必然会发生”。

(1)Anne was wondering what was to become of her boy friend, Tommy.安妮不知道她的男朋友托米会出什么事。

(2)The murderer was sentenced to life imprisonment and was never to see his family again.杀人犯被判终身监禁并且永远不能和家人见面。

(3)She did not think too much of her unkind acts.However,they were to be harmful to herself,too.她对她不友好的行为并没有想太多,然而,这些行为必将给她带来不利。

(4)Tom wasn’t worried about his head injury,but it was to be troublesome for him later.汤姆不担心他头部的伤,但是以后这损伤必将给他带来麻烦。

(5)You are to answer for what you have done.你必将为你所做的事承担后果。

7.用于虚拟语气,表示一种假设。

(1)If I were to do it, I would do it well.这件事如果我来做,我会做好它。

(2)Even if you were to take a taxi now, you would not be able to arrive at your destinaton on time.现在即使坐出租车,你也不会准时到达目的地的。

8.有“期待将来”的意思。

(1)The actual usefulness of the newly invented equipment is still to be determined.这种新发明出来的设备的实用性如何还有待观察。

(2)Henry's appointment with the accountancy firm is yet to be confirmed.亨利与这家会计事务所的约定还有待确认。
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