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一、定语从句概述

第二，引导定语从句的关系词

三。关系代词辨析

1.关系代词that和which

先行词指某物时，that和which一般可以互换，但也有特例。

通常当它被使用时：

1)先行词是不定代词如all、everything、something、any、nothing、much、less、none，或者先行词被序数、最高级形容词或less、the only、little、no、all、every、the very等修饰。比如：

我已经下定决心，你说什么也改变不了。

杰森可能是我教过的最努力的学生。

唯一重要的是孩子健康。

2)主句是以who、what等开头的特殊疑问句时。比如：

坐在湖边的那个女孩是谁？

你刚才提到的你最喜欢的书是什么？

通常使用which:

当前置非限制性定语从句或关系代词前有介词时。比如：

她喜欢音乐，而她哥哥从来不喜欢。

他一生为之奋斗的目标对他来说似乎不再重要了。

2.关系代词which和as

which和as都可以引导非限制性定语从句，用来指代整个主句或主句的一部分。通常，which-guided从句放在句末，as-guided从句可以放在句首、句中或句尾。比如：

众所周知，马克吐温是一位伟大的美国作家。

正如我们所料，观众人数远远超过了一千人。

他是美国人，这是我从他的口音中知道的。

四。介词关系代词引导的定语从句

1.在介词关系代词引导的定语从句中，关系代词在指物时只能用which，在指人时只能用who。比如：

这个城镇所在的山谷被严重污染了。

我们将去看我们谈论过的那位著名作家。

2.在介词关系代词引导的定语从句中，介词的选择取决于句子意义的需要或句子中动词、形容词、副词、介词的搭配。比如：

在办公室里，我似乎从来没有空闲时间，直到下午5点：30分以后，由

which time many people have gone home.

I couldn’t understand the woman to whom I talked on the phone.

3. “介词+关系代词”前可有名词、数词或some, any, none, both, all, neither, most, each, few等代词。如：

The classroom, the door of which is broken, will soon be repaired.

He loves his parents deeply, both of whom are very kind to him.

4. “介词+ which”引导定语从句时，介词可以是in (the) front of, at the foot of, in the middle of等复合介词。如：

He lived in a big house, in front of which stood a big tree.

五、特殊先行词后的定语从句

1. 先行词是reason时，如果关系词在从句中作状语，用why或for which引导；关系词在从句中作主语、宾语或表语，用that或which引导。如：

We’d like to know the reason why / for which she didn’t accept the job.

There is another reason that / which is more important.

2. 先行词是表示方式的way时，定语从句可用that或in which引导，也可省略。如：

People liked the way (that / in which) he wrote, so he went on writing.

3. 先行词是stage, position, situation, atmosphere等有地点含义的抽象名词，且关系词在定语从句中作状语时，用where引导。如：

Their youngest child is at the stage where she can say individual words but not full sentences.

You could get into a situation where you have to decide immediately.

4. 先行词是occasion时，一般要用when引导定语从句。如：

I can remember very few occasions when he had to cancel our trips.

六、关系词的省略

1. 关系代词在从句中作宾语时可省略。如：

The cup (that / which) you bought is broken.

2. 在某些表示时间、地点的词后的限制性定语从句中，关系副词在口语中有时省略。如：

I’ll never forget the year (when) I stayed in Beijing.

This is the place (where) I lived five years ago.

注意：非限制性定语从句通常由who, whom, which, whose, when, where及“介词+which / whom”引导，且关系词一般不省略。另外，在非限制性定语从句中，which可指代整个主句内容。

高考链接

用适当的关系词填空。

1. Two of the authors of the review also made a study published in 2014 ________ showed a mere five to 10 minutes a day of running reduced the risk of heart disease and early deaths from all causes.

2. The Chinese Ministry of Agriculture finds that between 2005 — when the government started a soil-testing program ________ gives specific fertilizer recommendations to farmers — and 2011, fertilizer use dropped by 7.7 million tons.

3. Many westerners ________ come to China cook much less than in their own countries once they realize how cheap it can be to eat out.

4. Self-driving is an area ________ China and the rest of the world are on the same starting line.

5. Kate, ________ sister I shared a room with when we were at college, has gone to work in Australia.

6. She and her family bicycle to work, ________ helps them keep fit.

7. Having enough fat and salt in your meals will reduce the urge to snack (吃点心) between meals and will improve the taste of your food. However, be careful not to go to extremes. Like anything, it is possible to have too much of both, ________ is not good for the health.

8. But Sarah, ________ has taken part in shows along with top models, wants to prove that she has brains as well as beauty.

9. My eldest son, ________ work takes him all over the world, is in New York at the moment.

10. Pahlsson and her husband now think the ring probably got swept into a pile of kitchen rubbish and was spread over the garden, ________ it remained until the carrot’s leafy top accidentally sprouted (生长) through it.

责编 | 杨宁

审稿 | 李栋

校稿 | 吕放

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