特殊句(选择)

1.Your uncle seems to be good diver;( ),I wouldn't dare to travel in his car. A even so B even through C therefore D so 这里的would是什么意思？ would一共有几种用法？ 2.It was some time ( ) we realized the truth. A when B until C since D before 在肯定句中until的用法？与till的区别 before一共有几种用法？

解题思路：
解题过程：
2.It was some time ( ) we realized the truth.
A when B until C since D before
此题选D。题干意为： 过了一段时间我们才意识到真相。下划线处应填入表示“在……之前”的连词。
It is +时间段+before句型的肯定式 表示"过多久……才、就"；否定式表示"不久……才就"。
在肯定句中until的用法？与till的区别
till 与until都可用作介词或连词,其用法有两种: 1)用在肯定句中,意为"到......(的时候)为止",谓语动词一般是延续性的,表示这个动词的动作一直延续到till(until)所表示的时间为止。例如: They talked till/until dawn.他们一直谈到天亮。 2)用在否定句中,意为"直到......才",表示这个动词的动作直到till/until所表示的时间才发生。例如： They are not going back to work until/till they get more money.他们要等到加了工资才复工。 这两个词一般情况下可通用,但以下两种情况只能用until,不能用till: 1)用于句首时。例如: Until you told me I had no idea of it.在你告诉我之前,我对此事一无所知。 2)在以not开头的短语或从句里。例如: Not until eleven o"clock did we get home.我们直到十一点才回家。 注意:till(until)只用来引导时间,不能用于指距离。试译: 我们走到树林边。 误:We walked till/until the edge of the forest. 正:We walked to the edge of the forest.
before一共有几种用法？
一、掌握before热点用法
1. prep. 在......以前，强调时间
He came to see me the day before yesterday. 他前天来看我了。
2. prep. 在......前面，当着......的面，向......，强调地点
She has to appear before the court. 她必须出庭受审。
3. prep. 在......之前，先于，强调次序
Those with babies can get on the bus before others. 带小孩的人可以先上汽车。
4. prep. 与其......（宁愿）
I'd shoot myself before I apologized to him! 我宁死也不向他道歉!
5. adv. 以前，强调时间
We've seen that film before. 我们以前看过那场电影。
6. adv. 在前面，向前，强调位置
Don't run before and after. 别跑前跑后。
7. conj. 在......前，强调时间
before的含义比较灵活，实际翻译时应结合具体情况机动处理。
1. 趁......
You should do it before it is too late. 趁现在还不算太晚，你应该赶快做它。
2. 尚未来得及
Before she could move, she heard a loud noise, which grew to a terrible roar. 她还没有来得及动弹，就听见有很响的声音，接着就成了可怕的隆隆轰鸣声。
Before they reached the house, a new great wave came, sweeping down trees, and sweeping them down too. 他们还没到屋子，又一个巨浪打来，冲倒了树，也冲倒了他们。
3. 要......先......
You should be a pupil before you become a teacher. 要当老师，先作学生。
二、掌握热点句型用法
It was not long before...（过去）没过多久就......
It was not long before he returned to Beijing. 不久他就回到北京。
需要特别注意，该句型可以进行创新，可将否定句改为肯定句（It was long before...过了很久才......）或将一般过去时改为一般将来时（It will not be long before...要不了多久就......；It will be long before...要过很久才......）。before在这些句型中均引导时间状语从句， long这个抽象的时间也可改为years, weeks, days等具体表时间的词。
It was long before he married Wei Fang. 过了很久他才娶魏芳。
It will be long before he goes abroad. 要过很久他才出国。
Will it be years before he goes to school? 要过好几年他才能上学吗？
高考题例：
It ________ long before we ________ the result of the experiment.
A. will not be...will know B. is...will know C. will not be...know D. is...know
【析】正确答案为C。该句面意思为：在我们知道实验结果之前不会过很长一段时间，也就是不会过很长一段时间我们就会知道实验结果。应使用It was not long before的创新句型It will not be long before，before引导时间状语从句时，从句应用一般现在时代替一般将来时。
Scientists say it may be five or six years ________ it is possible to test this medicine on human patients.
A. since B. after C. before D. when
【析】正确答案为C。该句型也是It was not long before的创新句型。
最终答案：略