定語從句連接詞 哪些
一、定語從句的引導(dǎo)詞有關(guān)系代詞who,whom,whose,which,that,as；關(guān)系副詞when,where,why.定語從句中引導(dǎo)詞的選用主要看先行詞在定語從句中作什么成分或者是定語從句中缺什么成分.
1．定語從句中缺主語,修飾人時(shí)用who ／that,修飾物時(shí)用which ／that引導(dǎo).如：
Is this the factory which ／that makes TV sets?
The man who ／that visited our school is from Australia．
2．從句中缺賓語,修飾人時(shí)用 who ／whom ／that或省略引導(dǎo)詞；修飾物時(shí)用which ／that或省略引導(dǎo)詞.如：
Gone are the days which ／that we spent together in the village．
He is the man who ／whom ／that I think to be worthy of our praise．
3．從句中缺時(shí)間狀語,用when或介詞＋which引導(dǎo).如：
The day finally came when ／on which I was given a job．
We'll put off the outing until next week,when we won't be so busy．
4．從句中缺地點(diǎn)狀語,用where或介詞＋which引導(dǎo).如：
Please put the letter on the desk where ／on which he can easily find it．
5．從句中缺原因狀語或先行詞是 reason時(shí),引導(dǎo)詞用why ／for which ／ that.如：
This is the reason why ／for which ／ that he didn't come to the meeting．
6．從句中缺定語,人和物都用 whose引導(dǎo).如：
A child whose parents are dead is called an orphan．
Please pass me the dictionary whose cover is black．
7．當(dāng)先行詞是way時(shí),其定語從句的引導(dǎo)詞用in which ／that.如：
The way in which ／that he looks at problems is wrong．
二、引導(dǎo)詞as可引導(dǎo)限制性定語從句,也可引導(dǎo)非限制性定語從句.
1．在固定詞組the same．．．a(chǎn)s,such．．．a(chǎn)s中,as引導(dǎo)限制性定語從句.如：
He is not such a fool as he looks．
I've bought the same dress as she is wearing．
2．當(dāng)先行詞是整個(gè)主句時(shí),可用 as ／which引導(dǎo)非限制性定語從句.引導(dǎo)詞as和which的區(qū)別在于：
①as引導(dǎo)的非限制性定語從句可放于主句前、主句中、主句后,而which引導(dǎo)的非限制性定語從句一般放于主句后或句中.
�、赼s常與從句中的know,see,hear,expect等動詞連用,也常用于as often happens,as is often the case（常有的事）等句子中；而which一般不用于以上情況.
�、踑s有“正如”的含義,which沒有此含義.如：
As is well known,Shanghai is a big city．
Some of the roads were flooded,which made our journey more difficult．
三、關(guān)系代詞who,whom,whose,which和as能引導(dǎo)非限制性定語從句,而that不能；非限制性定語從句中即使缺賓語,引導(dǎo)詞也不能省略；關(guān)系副詞when,where能引導(dǎo)非限制性定語從句,而why不能.如：
Abraham Lincoln,who led the United States through the Civil War years,was shot on April 14,1865．
四、先行詞是物時(shí),其引導(dǎo)詞可用 which也可用that,通常情況下二者可互換,但在有些情況下不能.
1．用which不用that引導(dǎo)定語從句的三種情況：
①非限制性定語從句用which,不用that引導(dǎo).如：
Football,which is a very interesting game,is played all over the world．
�、谙刃性~為that時(shí),為了避免重
復(fù),定語從句用which不用that引導(dǎo).如：
That which you borrowed from me wasn't a real diamond necklace．
③介詞后用which不用that引導(dǎo).如：
The method with which you solved the problem is very good．
2．用that不用which的七種情況：
�、傧刃性~前有形容詞最高級或序數(shù)詞修飾時(shí),用 that不用which引導(dǎo).如：
This is the best place that I have ever visited．
The second question that is asked is why we don't fall off the earth．
②先行詞為little,much,all,none,few,（the）one,something,everything,nothing,anything等不定代詞時(shí),用that引導(dǎo).如：
There is nothing in the world that can frighten him．
�、巯刃性~既有指人的`名詞又有指物的名詞時(shí),用 that引導(dǎo).如：
He told us about the people and the cities that he had visited．
④先行詞前有any,all,no,few,every,some,little,much,（the）very,（the）only,（the）last等詞修飾時(shí),用 that引導(dǎo).如：
This is the very coat that I need．
Is oxygen the only gas that helps fire burn?
�、菹刃性~為which時(shí),為了避免重復(fù),用that引導(dǎo).如：
Which is the book that you bought yesterday?
�、尴刃性~在從句中作表語時(shí),常用that引導(dǎo).如：
Shanghai is no longer the city that it used to be in the 1930's．
⑦當(dāng)主句是There be．．．句型時(shí),用that引導(dǎo).
There are two tickets for the film that are for you two．
五、在“one of＋復(fù)數(shù)名詞＋定語從句”結(jié)構(gòu)中,從句的謂語動詞應(yīng)與復(fù)數(shù)名詞保持一致；當(dāng)one前有the only修飾時(shí),從句的謂語動詞應(yīng)與the only one保持一致.如：
He was one of the students who were late for class．
He was the only one of the students who was late for class．
六、引導(dǎo)詞前有介詞或短語介詞時(shí),修飾人只能用 whom,修飾物只能用which引導(dǎo).如：
My glasses,without which I was like a blind man,fell to the ground and broke．
The man,by whom the wolf was shot,is called Jackson．
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