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英语英语定语从句用法详解（初中）???

在复合句中?，?修饰名词或代词的从句叫定语从句?，?被修饰的名词或代词叫先行词?，?引导定语从句的有关系代词?who,?whom,?whose,?which,?that等和关系副词where,?when,?why等?，?关系代词和关系副词在定语从句中担任句子成份。?

1.由who引导的定语从句中?，?who用作主语?，?如?：?This?is?the?boy?who?often?helps?me.?

2.由whom引导的定语从句中，whom用作宾语，如：The?man?whom?you?are?waiting?for?has?gone?home.?

3.由whose引导的定语从句中?，?whose用作定语?，?如?：?Do?you?know?the?girl?whose?skirt?is?white??

4.由which引导的定语从句中，which用作主语或谓语动词的宾语或介词的宾语，如：?The?room?in?which?there?is?a?machine?is?a?work?shop.?The?river?which?is?in?front?of?my?house?is?very?clean.?This?is?the?pen?which?you?want.?注意?：?

(1)whom,?which用作介词宾语时?，?介词可放在?whom、which之前?，?也可放在从句原来的位置上；但在含有介词的动词固定词组中，介词只能放在原来的位置上。如：?He?is?the?very?person?whom?we?must?take?good?care?of.?

(2)引导非限制性定语从句时，必须用关系代词which，不用that,如：I?have?lost?my?bag,?which?I?like?very?much.?

(3)关系代词在句中作主语时，从句的谓语动词的人称和数必须和先行词保持一致。?

5.由that引导的定语从句中，that可以指人或物，在从句中作主语或谓语动词的宾语，但不能放在介词后面作介词宾语，如：?

The?book?that?I?bought?yesterday?was?written?by?Lu?Xun.

注意在下面几种情况下必须用?that引导定语从句。?

(1)先行词是不定代词all,?few,?little,?much,?something,?nothing,?anything等?，?如?：?All?that?we?have?to?do?is?to?practise?English.?

(2)先行词被序数词或形容词最高级所修饰，如?The?first?letter?that?I?got?from?him?will?be?kept.?

(3)先行词被all,?any,?every,?each,?few,?little,?no,?some等修饰?，?如?I've?eaten?up?all?the?food?that?you?gave?me.?

(4)先行词被the?only,?the?very,?the?same,?the?last修饰时某某?He?is?the?only?person?that?I?want?to?talk?with.?(5)先行词既有人又有物时，如:?

They?talked?about?persons?and?things?that?they?met.?

(6)当句中已有who时?，?为避免重复?，?如?：?Who?is?the?man?that?is?givi 内容过长，仅展示头部和尾部部分文字预览，全文请查看图片预览。 book被序数词修饰时要用that引导定语从句，故选C。?例?2?I'll?never?forget?the?days?_____I?stayed?with?you.?A.?when?B.?in?which?C.?that?D.?for?which?解析?本题指时间，故选?A。?

例?3?The?book______?is?sold?out?at?the?moment.?A.?you?need?B.?what?you?need?

C.?which?you?need?it?D.?that?you?need?it?

解析?B、C、D中的what和it与先行The?book相抵触?，?故选?A。

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