高中定语从句例句when

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　高中定语从句例句when

　　以下6个为关系代词，在从句中充当主语或宾语，其中whose可以充当定语。

关系词	先行词	例句
who	人	Do you know the man who is talking with your mother?
whom	人	Mr. Smith is the person with whom I am working.
whose	人or物	I like those books whose topics are about history.
that	人or物	A plane is a machine that can fly. She is the pop star (that) I want to see very much.
which	物	The book (which) I gave you was worth $10.
as	人，物	He is such a person as is respected by all of us. This is the same pen as I lost yesterday.

　　以下为关系副词，在定语从句中充当状语，其中how省略，表方式。

when	时间	I will never forget the day when we met there.
where	地点	This is the house where I was born.
why	原因	I can’t imagine the reason why he turned down my offer.

　　Ⅱ. as与which的区别：

定语

从句

区别

例句

限制性定语从句　

名词前有such和the same修饰时，关系代词用as,不能用which

He is not such a fool as he looks.

Don’t read such books as you can’t understand.

非限制性定语从句

as和which都可以指代前面整个主句。如果有“正如，象”的含义，并可以放在主句前，也可以放在后面，那么用as；而which引导的从句只能放主句后，并无“正如”的意思。

They won the game, as we had expected.

They won the game, which we hadn’t expected.

As is well known, he is a famous film star in the 1980s.

　　Ⅲ.限制性定语从句与非限制性定语从句的区别：

类别	语法意义及特征	例句
限制性定语从句	对先行词起修饰限制作用，如果去掉，主句意思就不完整明确，不用逗号分开。	The accident happened at the time when I left.
非限制性定语从句	对先行词作附加的说明，与主句的关系不十分密切，从句和主句之间用逗号分开，不能用that引导，关系代词做宾语时也不能省略。	His mother, whom he loved deeply, died ten years ago.

　　一、考点聚焦

　　1、先行词：被定语从句修饰的词称为先行词

　　（1）先行词一般是名词和不定代词，如:some-, any-, every-和no与-boy, -thing的合成词；或all、none、any、some、that、those等代词。数词也可以作先行词，人称代词也同样可作先行词。

　　（2）先行词与关系词是等量关系。必须注意两点：

　　①先行词在从句中作主语时，从句谓语动词的数由先行词而定。

　　This is the place which is worth visiting.

　　②关系词在从句句子中充当了成分，其意思就是先行词的意义，所以在从句中不能重复其意。

　　There are many places we can visit（them）in China.

　　2、关系词：引导定语从句的都称关系词。

　　关系代词：who, whom, which, that, whose, as。

　　关系副词：when, where, why，how。that偶尔也作关系副词。

　　3、确定关系词的步骤

　　（1）先找关系词，看先行词指的是什么。

　　（2）看关系词在从句中所充当的成分。

　　4、在定语从句中，当先行词指物时，下列情况的关系词宜用that而不用which

　　（1）先行词被①形容词最高级②序数词③数词几种词修饰或被④only、any、few、little、no、all、one of等修饰时。

　　（2）先行词为all、much、little、none、few、one、something、anything等不定代词时。

　　（3）先行词中既有人又有物时。

　　He was looking pleasantly at te children and parcels that filled his bus.

　　5、关系词who与that指人时，也有不同情况分别用不同的关系词。

　　（1）先行词是为anyone、those、someone、everyone、one等词时，用who。

　　（2）当主句是who作疑问词时，关系词用that。

　　Who is that girl that is standing by the window?

　　（3）whom在从句中只作宾语，可被who取代。

　　6、whose作关系词既指人又指物，在从句中作定语。如：

　　Do you know Mr. Smith whose story is very moving?

　　There is a room, whose window faces the river.

　　There is a room, the window of which faces the river.

　　7、关系代词as,在从句中作主语、宾语和表语。

　　（1）先行词被such和the same修饰，或句型as many（much）中，从句都用as引导。

　　Such books as you bought are useful. The school is just the same as it was 10 years age.

　　注意：区别①such … that …引导的结果状语从句。They are suchlovely children that we love them much.②the same … that …引导定语从句。I want to use the same tool that you used just now.

　　（2）无先行词的定语从句用as和which引导。

　　区别：①意义上：as含有“这点正如……一样”。②位置上：as从句可置句首，也可在另处。

　　He didn’t pass the exam, as we had expected.

　　There is lots of air in loose snow, which can keep the cold out.

　　As is known, the earth is round, not flat.

　　8、关系副词when与where、why、that

　　when指时间= in / at / on / during which

　　where指地点= in / at / from / which

　　why指原因= for which

　　当先行词为way、day、reason、time时，可用that作关系副词。（非正式场合）

　　I don’t like the way that / in which / he talks.

　　当time作先行词时，关系词可以省掉。

　　This is the first time I have given you a lesson in French.

　　9、必须注意的问题

　　（1）关系词作主语时，从句中谓语的数。

　　（2）注意区别定语从句与强调句。

　　①定语从句中关系词作从句成分，复合句。

　　②强调it无意义，that / who不是引导词。

　　③强调it is / was和that / who后如果句子意思讲得通则是强调句，讲不通则不是。

　　It is the museum that / which we visited last year.(定语从句)

　　It was in the hotel that we stayed last night.（强调句）

　　（3）定语从句与同位语从句的区别。

　　①定语从句引导词被称为关系词，that充当主语、宾语、表语。有时可省略。

　　②同位语从句引导词被叫做连词，that不能充当任何成分，不可省。

　　Word came that their army was defeated.(同位语)

　　We expressed to them our wish that was the same as their.(定语)

　　（4）关系词在从句中省略的情况。

　　①关系词作宾语，前无介词时。②关系词作表语。

　　（5）限制性定语从句与非限制性定语从句的翻译。

　　（6）关系词前有介词或复杂介词，关系词只能是which和whom。

　　（7）几个特殊的定语从句句型：

　　①He is the only one of the students who has got very good marks in the match.（句中one为先行词）

　　He is one of the students who have got good marks in the match.（句中students为先行词）

　　②Is this place the one (that) we visited yesterday？Is this the place (that / which) we visited yesterday?

　　③He stood at the window, from where he could see what was happening.

　　④It may rain, in which case the match will be put off.

　　二、精典名题导解

　　1. The film brought the hours back to me _________ I was taken good care of in that faraway village.（NMET 2001）

　　A. until B. that C. when D. where

　　解析：答案为C。本题考查分隔定语从句的关系词的选择。作好本题的关键是要能辨认出该定语从句的先行词the hours和关系词被介词短语to me所分隔。定语从句的'先行词是表时间的名词hours,并且关系词在从句中用作状语，故应选择表示时间的关系副词when。

　　2. ___________ is known to everybody, the noon travels around the earth once every month.(NMET 2001)

　　A. It B. As C. That D. What

　　解析：答案为B。本题考查as引导的非限制定语从句。as作“正如……”解时，引导的非限制性定语从句来修饰整个句子。当as在从句中作主语时，常用于下列短语：as is known、as is said、as is reported、as is announced等。要注意掌握作关系代词引导定语从句的用法。

　　3. After living in Pairs for fifty years he returned to the small town ___________ he grew up as a child.(NMET 1996)

　　A. which B. where C. that D. when

　　解析：答案为B。本题考查限制性定语从句中关系词的选择。定语从句的先行词是表示地点的名词短语the small town,且关系词不作定语从句中的主语和宾语而作地点状语，因此定语从句必须用关系副词where引导。要注意分清先行词在从句中充当的成分，然后选择适当的关系词。

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