be+不定式动词
“be+不定式动词”在不同情况下，可以表示很多种不同的语义。下面便是其中九种：
一、表示坚决的命令。例如：
1. This naughty boy is to stay here until the class is over.
2. No one is to enter this building without the permission of the curity guard.
二、表示“计划”序列号英文或“安排的事项”。例如：
3. Betty is to be married soon.
4. An insurance agent is to meet us this afternoon.
三、表示“可能性”。例如： ieyou
5. Are you to pay the debt for your wife?
6. The lovely puppy is nowhere to be found.
四、表示“意图”或“打算”。例如：
7. If you are to be there on time, you had better hurry.
8. If all of us are to remain friendly, we must be sincere with one another.
五、表示“应该”职业生涯管理。例如：
9. You have done so well. You are to be rewarded.
10. Such nasty questions are to be avoided.
六、表示“不可避免”。例如：室内设计培训班
11. Anne was wondering what was to become of her boy friend, Tommy.
12. The murderer was ntenced to life imprisonment and was never to e his family again.
七、表示“智康1对1假设”。例如：
国家汉办志愿者 13. If I were to do it, I would do it well.
14. Even if you were to take a taxi now, you would not be able to arrive at your destination on time.
八、有“期待将来”的含意。例如：
15. The actual ufulness of the newly invented equipment is still to be determined.
16. Henry's appointment with the accountancy firm is yet to be confirmed.
九、有“必然会发生环保服装材料”report的含意。例如：double bass
17. She did not think too much of her unkind acts. However, they were to be harmful to herlf, too.
18. Tom wasn't worried about his head injury, but it was to be troublesome for him later.
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