定語(yǔ)從句（Attributive Clauses）在句中做定語(yǔ),修飾一個(gè)名詞或代詞,被修飾的名詞,詞組或代詞即先行詞.定語(yǔ)從句通常出現(xiàn)在先行詞之后,由關(guān)系詞（關(guān)系代詞或關(guān)系副詞）引出.
關(guān)系代詞有：who, whom, whose, that, which等.
關(guān)系副詞有：when, where, why等. 18.1 關(guān)系代詞引導(dǎo)的定語(yǔ)從句
關(guān)系代詞所代替的先行詞是人或物的名詞或代詞,并在句中充當(dāng)主語(yǔ)、賓語(yǔ)、定語(yǔ)等成分.關(guān)系代詞在定語(yǔ)從句中作主語(yǔ)時(shí),從句謂語(yǔ)動(dòng)詞的人稱和數(shù)要和先行詞保持一致.
1）who, whom, that
這些詞代替的先行詞是人的名詞或代詞,在從句中所起作用如下：
Is he the man who/that wants to see you?
他就是你想見(jiàn)的人嗎?（who/that在從句中作主語(yǔ)）
He is the man whom/ that I saw yesterday.
他就是我昨天見(jiàn)的那個(gè)人.（whom/that在從句中作賓語(yǔ)）
2) Whose 用來(lái)指人或物,(只用作定語(yǔ), 若指物,它還可以同of which互換）, 例如：
They rushed over to help the man whose car had broken down. 那人車(chē)壞了,大家都跑過(guò)去幫忙.
Please pass me the book whose (of which) cover is green. 請(qǐng)遞給我那本綠皮的書(shū).
3）which, that
它們所代替的先行詞是事物的名詞或代詞,在從句中可作主語(yǔ)、賓語(yǔ)等,例如：
A prosperity which / that had never been seen before appears in the countryside. 農(nóng)村出現(xiàn)了前所未有的繁榮.（which / that在句中作賓語(yǔ)）
The package (which / that) you are carrying is about to come unwrapped. 你拿的包快散了.(which / that在句中作賓語(yǔ) 18.2 關(guān)系副詞引導(dǎo)的定語(yǔ)從句
關(guān)系副詞可代替的先行詞是時(shí)間、地點(diǎn)或理由的名詞,在從句中作狀語(yǔ).
1）when, where, why
關(guān)系副詞when, where, why的含義相當(dāng)于"介詞+ which"結(jié)構(gòu),因此常常和"介詞+ which"結(jié)構(gòu)交替使用,例如：
There are occasions when (on which) one must yield. 任何人都有不得不屈服的時(shí)候.
Beijing is the place where (in which) I was born. 北京是我的出生地.
Is this the reason why (for which) he refused our offer? 這就是他拒絕我們幫助他的理由嗎?
2）that代替關(guān)系副詞
that可以用于表示時(shí)間、地點(diǎn)、方式、理由的名詞后取代when, where, why和"介詞+ which"引導(dǎo)的定語(yǔ)從句,在口語(yǔ)中that常被省略,例如：
His father died the year (that / when / in which) he was born. 他父親在他出生那年逝世了.
He is unlikely to find the place (that / where / in which) he lived forty years ago. 他不大可能找到他四十年前居住過(guò)的地方.
用關(guān)系代詞,還是關(guān)系副詞完全取決于從句中的謂語(yǔ)動(dòng)詞.及物動(dòng)詞后面無(wú)賓語(yǔ),就必須要求用關(guān)系代詞；而不及物動(dòng)詞則要求用關(guān)系副詞.例如：
This is the mountain village where I stayed last year.
I'll never forget the days when I worked together with you.
判斷改錯(cuò)（注：先顯示題,再顯示答案,橫線；用不同的顏色表示出.）
（錯(cuò)） This is the mountain village where I visited last year.
（錯(cuò)） I will never forget the days when I spent in the countryside.
（對(duì)） This is the mountain village (which) I visited last year.
（對(duì)） I'll never forget the days (which) I spent in the countryside.
習(xí)慣上總把表地點(diǎn)或時(shí)間的名詞與關(guān)系副詞 where, when聯(lián)系在一起.此兩題錯(cuò)在關(guān)系詞的誤用上.
內(nèi)容提要
定語(yǔ)從句是由關(guān)系代詞和關(guān)系副詞引導(dǎo)的從句,其作用是作定語(yǔ)修飾主句的某個(gè)成分,定語(yǔ)從句分為限定性和非限定性從句兩種.狀語(yǔ)從句分為時(shí)間狀語(yǔ)從句,結(jié)果狀語(yǔ)從句,讓步狀語(yǔ)從句,原因狀語(yǔ)從句,條件狀語(yǔ)從句以及行為方式狀語(yǔ)從句.名詞從句包括主語(yǔ)從句,賓語(yǔ)從句,表語(yǔ)從句和同位語(yǔ)從句及there be句型.
一、 限定性定語(yǔ)從句
1. that即可代表事物也可代表人,which代表事物；它們?cè)趶木渲凶髦髡Z(yǔ)或賓語(yǔ),that在從句中作賓語(yǔ)時(shí)?？墒÷躁P(guān)系詞,which在從句中作賓語(yǔ)則不能省略.而且,如果which在從句中作“不及物動(dòng)詞＋介詞”的介詞的賓語(yǔ),注意介詞不要丟掉,而且介詞總是放在關(guān)系代詞which的前邊,但有的則放在它原來(lái)的位置
2. which作賓語(yǔ)時(shí),根據(jù)先行詞與定語(yǔ)從句之間的語(yǔ)義關(guān)系,先行詞與which之間的介詞不能丟
3. 代表物時(shí)多用which,但在帶有下列詞的句子中用that而不用which,這些詞包括all, anything, much等,這時(shí)的that常被省略
4. who和whom引導(dǎo)的從句用來(lái)修飾人,分別作從句中的主語(yǔ)和賓語(yǔ),whom作賓語(yǔ)時(shí),要注意它可以作動(dòng)詞的賓語(yǔ)也可以作介詞的賓語(yǔ)
5. where是關(guān)系副詞,用來(lái)表示地點(diǎn)的定語(yǔ)從句
6. when引導(dǎo)定語(yǔ)從句表示時(shí)間
〔注〕值得一提的是,表示時(shí)間“time"一詞的定語(yǔ)從句只用when引導(dǎo),有時(shí)不用任何關(guān)系代詞,當(dāng)然也不用that引導(dǎo)
By the time you arrive in London, we will have stayed there for two weeks.
I still remember the first time I met her.
Each time he goes to besiness trip, he brings a lot of living necessities, such as towers, soap, toothbrush etc.
7. whose是關(guān)系代詞,修飾名詞作定語(yǔ),相當(dāng)于所修飾成分的前置所有格
8. 當(dāng)從句的邏輯主語(yǔ)是some, any, no, somebody, anybody, nobody, something, anything, everything或nothing時(shí),常用there is來(lái)引導(dǎo)
二、非限定性定語(yǔ)從句：非限定性定語(yǔ)從句的作用是對(duì)所修飾的成分作進(jìn)一步說(shuō)明,通常和主句間用逗號(hào)隔開(kāi),將從句拿掉后其他部分仍可成立
1. which引導(dǎo)的非限定性定語(yǔ)從句來(lái)說(shuō)明前面整個(gè)句子的情況或主句的某一部分
2. 在引導(dǎo)限定性定語(yǔ)從句時(shí),that有時(shí)相當(dāng)于in which, at which, for which或at which
Attitudes towards daydreaming are changing in much the same way that(in which) attitudes towards night dreaming have changed. 人們對(duì)白日做夢(mèng)的態(tài)度正在改變,這與人們對(duì)夜間做夢(mèng)的看法的變化有非常相似之處.
I like the music for the very reason that(for which) he dislike it. 我出于某種原因喜歡這種音樂(lè),而他恰恰與我相反.
We arrived the day that(on which) they left. 剛好我們到的那天他們走了.
3. 有時(shí)as也可用作關(guān)系代詞
4. 在非限定性定語(yǔ)從句中,不能用that,而用who, whom代表人,用which代表事物