关于定语从句例句有哪四个重点?对于一些还不熟悉使用定语从句的考生来说，关于定语从句例句的重点也是不太清楚的，那么接下来就跟着小编来具体了解一下关于定语从句例句有哪四个重点吧。
1 Relative pronouns(关系代词)
我们用
? who来指人：
Please welcome Mike Bowers, who is going to talk to us about how to look after your home.
? which来指物：
These are dangerous if you live in a flat which is in a large high-rise buildings.
? that来指人或物：
Find someone that can check on your home while you’re away.
Store away any objects that could become damaging missiles.
在英语口语中，that常替代who，which，并且更常见。
? where来指地方：
This is your home,the place where you keep your most treasured possessions.
? when来指时间：
Programme them to come on at times when you would normally be home.
? whose来表达所有：
You’re a person whose job involves a lot of travel.
He lives in an old house,whose roof needs repairing.
注意：whose=of whom/which
例:He lives in an old house,of which the roof needs repairing.
He lives in an old house,the roof of which needs repairing.
? why在the reason或reasons后面：
There are often very good reasons why one house is burgled and another is not.
2 Defining attributive clauses(限定性定语从句)
当关系代词指的是从句中的宾语时，可以省略。比较：
Maybe there’s a neighbour (that) you can ask.(neighbour是从句中ask的宾语)
In the evening,a house that’s very dark can really stand out.(house是从句中的主语，此时that不可以省略。)
3 Non-defining attributive clauses(非限定性定语从句)
非限定性定语从句的特点是在关系词前面有逗号，试比较：
句1：I applied to the university,which is located in the center of the city.(非限定性)
句2：I applied to the university which is located in the center of the city.(限定性)
那么，区别在哪呢?
非限定性定语从句给出的是事物的额外的、非根本性的信息。即，句1中暗指市中心只有一所大学，而它的位置是额外的补充信息，并不起限定作用。而句2中暗指还有别的大学，不是在市中心，此时便起到限定作用。
非限定性定语从句在书面英语中比口语中更为常用。
*注意
1：非限定定语从句中关系代词不可以省略， 不可以使用that。
The burglars got in through the kitchen window,that the owners had forgotten to shut.×
The burglars got in through the kitchen window,which the owners had forgotten to shut.√
2：关系代词which可以指代整个从句:
Mary has fallen in love with Jerry,which all of us know.此句中，which指代整个前半句的内容。
4 Prepositions(介词)
当介词用于定语从句的时候，在口语中他们通常出现在从句的结尾：
You may have a neighbour that you can rely on.
在正式文体中，介词可以置于关系代词which或whom前：
I was successful in obtaining a place at any of the universities to which i applied.
My boss,for whom i have worked for over 30 years,has decided to retire.
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