Question

介词+which 的用法

尤其是by which in which

Answer 1

by which 通过某种方式

in which =where/when 看具体情况

定语从句的关系副词 Where的用法:若先行词指地点且其在定语从句中充当地点状语.

This is the house+I was born in the house. (=I was born there)

介词短语 副词

=This is the house where I was born.这就是我在那儿出生的房子.

先行词 关系副词

in which I was born.

介词+关系代词

which I was born in.

关系代词

这里作介宾的which和that可以省略

that I was born in

关系代词.
练习：用which ，where填空
1 This is the factory where they want to visit。

2 My sister works in a bookshop in which we can read many kinds of books

3 Have you visited the city where the famous scientist was born?

4 Is this the museum which they visited last month?

5 He built a telescope through which he could study the skies.

6 The pencil with _which_______ he wrote was broken.

7 Is this the shop _which____ sells children’s clothing?

8 I still remember the sitting-room _where____ my mother and I used to sit in the evening.

9 Don’t go in, this is the shop _which____ we have just been to。

10 Please show me the book _which____ you bought yesterday _____.

二 定语从句的关系副词 When的用法: 若先行词指时间且其在定语从句

中充当时间状语.
He came at a time +we needed help at a time.

介词短语
=He came at a time when we needed help

关系副词
at which we needed help
介词+关系代词
which we needed help at
关系代词 这里的作介宾的which 和that可以省略
that we needed help at

你还可以参考http://new.pkuschool.com/ask/q.asp?qid=265

Answer 2

by which就是通过某种方式; 同意
in which = where表地点：部分同意。因为跟据地点不同还可以用on at 等

Answer 3

by which就是通过某种方式;

in which = where表地点

for which表原因,= because