原书 PDF 第 1195—1196 页
问】We have solved the problem who was at fault. 请问 the problem 与 who 从句存在着什么样的语法关系？一个名词可以直接与 wh-从句连用吗？
应当了解英语用法的一种趋势: 在 wh-从句以及 wh-不定式之前的介词常常被省略掉。在上面的 who 从句之前省略了介词 of(参见 idea )。再如：
... had little idea of what they wanted to do. ……对于他们想要做什么，一无所知。
I'm not sure (about) what to do. 我不能确定要干什么。
They haven't yet decided (on) which flight they will take. 他们还没有决定乘哪一个航班。
Nobody could decide (as to) what to do. 没有人能决定该做什么。
I wasn't altogether clear (about) what we had to do. 我一点儿也不明确我们必须做什么。
(1) With whom did she go?
B (B) Who(m) did she go with?
(2) This is the house in which my sister lived.
{ (B) This is the house (which) my sister lived in.}
请问句(1)和句(2)中的介词的位置哪个是正确的?
应当明确,上面两个位置都是正确的。在正式语体里,介词常常放在疑问词或关系代词的前面。而在非正式语体里,介词则通常放在句尾、从句尾或动词不定式之后:
A. 正式语体：
For whom is the present? 这礼品是给谁的？
This is the house about which I told you. 这就是我对你说过的那所房子。
There is a rocket motor on the satellite by which the direction of the satellite can be changed if necessary. 在卫星上有一个火箭马达,必要时可以用它来改变卫星的方向。
There was no way in which it could be brought back to the earth. 没有能够把它带回地面的方法。
He built a glass wall through which he could watch what went on inside. 蜂箱的一面装上玻璃,他可以透过玻璃观察到蜜蜂在里面的活动情况。
It's a boring place in which to live. 这是一个令人讨厌的居住地。
B. 非正式语体：
“A talk? What subject should I talk about?” “讲话？我应当讲什么题目呢？”
She's the only woman (who) I've really been in love with. 她是我真正爱过的唯一的女人。
Which floor had he stayed on? 他住的是哪一层楼?
What will the money be used for? 筹集来的钱准备用来做什么?
What have you been interested in for as long as you can remember? 就你记忆所及, 你对什么事情一直感兴趣?
Which subjects do you like reading about in newspapers, magazines and books? 报纸、杂志和书籍中哪些内容你最喜欢读？
Which speech are you going to listen to this afternoon? 你准备今天下午听哪个演讲？请做下面的英语试题：
In the dark street, there wasn't a single person ____ she could turn for help.
A. that B. who C. from whom D. to whom(全国高考,92-27)
A. with which B. to which C. of which D. for which(全国高考重庆卷,07-30)
She likes to be looked at. 她喜欢被人看。
请问介词 at 的宾语在哪里呢?
见agree on, look at , on 。