介词后的关系代词只能是which或whom(介词后跟宾语)
介词的选择可以把定语从句(包括状语)单独拆出来看
Do you remember the day on which we first meet
一个句子一般不会以介词结尾,如果由于一些词组导致句子以介词结尾,需要把介词提前到关系代词之前
Ending a sentence with a prep. is something up with I will not put——Winston Churchill
“most of which”与“the price of which”的来源
如果of后面接them会导致一个句子有两组主语与谓语
I bought some books。 most of books are English books,两句合并以后就出现“most of which”
一些含动词与介词的短语,介词也会提前,这导致一个句子看上去有两个谓语,但是一个在主句一个在从句,有时还会看上去是情态动词后填谓语的形式,注意不要被干扰
All of the things that they can has been done(can后面省略了do)
有些介词根据句意选择
Air,without which man can't live,is important
理解这类句子都可以把从句(关系代词变成先行词)单独挑出来并还原
定语从句的起点都是关系及其介词,重点是主句里的其他成分(第二个谓语)或直接结束