常用情态动词的基本用法will和would
will , would
would可以看作是will的过去式，这两个词除了时态不相同外，在表达意思的许多方面是相近的。当然will 和would又都有一些各自不同的独特用法。
（1）用于第二人称疑问句，表示请求（在这种用法中would使语气更为客气、委婉）
Will you tell her that I'll be back in twenty minutes ？ 请告诉她我二十分钟后回来，好吗？
If you want help, just let me know , will you ？ 你需要帮助就告诉我，好吗？
Would you tell me how to get to the shopping center ？ 您能告诉我怎么去购物中心吗？
Won't you come in and have a little whisky ？
你要不要进来喝一点儿威士忌？（或是：你进来喝一点儿威士忌，好吗？）
（2）用于表示愿望
Go where you will . 去你想去的地方吧。
I will pay you at the rate you ask . 我会按你要的利率付给你钱的。
He wouldn't let the doctor take his blood pressure . 他不愿意让大夫给他量血压。
They had to obey whether they would or not . 他们不得不遵从他们的意愿。
（3）表示习惯、倾向（可译成"总是会、老是，等" ）Sometimes the cat will lie there all afternoon . 有时侯，那只猫总是整个下午都躺在那儿。
Oil and water will not mix . 油和水决不能调和。
He would sit there for hours , doing nothing at all . 他总是在那儿一坐就是几个小时，什么都不干。
（4）表示猜测（可译成"一定是……、想必……，等" ）
This will be the house you're looking for . 这想必就是你要找的房子吧。
He will have gone back to New Zealand . 他一定是回新西兰去了。
That would be in 1999 , I think . 那大概是在1999年吧。
（5）will用于表示决心（可译成"一定要,决心，等" ）
We will never talk about that subject again . 我们决不会再谈论这个话题了。
I will make this computer work even if I have to stay up all night .
我即使整晚不睡觉也一定要让这台计算机工作起来。
（6）would常用于虚拟条件句，表示与事实相反或不太可能实现的情况
But for your help we would have been late . 要不是你帮忙我们就迟到了。
Well , I wouldn't worry about it . It won't do me any good .
好了，我不会担心那件事的，因为它不会给我带来什么好处。
1.He _______ sleep, although he tried to, when he got on such a hunt for an idea until he had caught it.
A. wouldn’t B. shouldn’t C. couldn’t D. mustn’t
2.The traffic is heavy this day, I _______ arrive a bit late, so could you save me a place?
A. can B. must C. need. D. might
3. The traffic light is red, so I _______ stop my car.
A. must B. have to C. can D. mustn’t
4.—_______ I book a table for dinner in advance?
—Yes, you _______.The restaurant is always full of people.
A. Must; can B. Will; will C. Shall; need D. Shall; must
5.You _______ be sitting in this waiting room, sir. You see, it is for women and children only.
A. oughtn’t to B. dare not C. need not D. will not
1. C 【解析】从题干“although he tried to”可锁定答案为C“couldn’t”。句意：他搜肠刮肚去想主意，等想到了，试图去睡上一觉，却怎么也不能入睡。
2. D 【解析】此处的语境应该是表示可能性：或许，大概。故选D项。句意：今天交通很是拥堵，我或许要迟到一会儿。所以你可以给我留个位置吗？
5. A 【解析】oughtn’t to不该。根据下文“你看，它只是为妇女和儿童准备的”可知上文句意为：你不该坐在等候室里面，先生。故选A.
