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why引導(dǎo)定語(yǔ)從句例句
定語(yǔ)從句（也稱關(guān)系從句、形容詞性從句），是指一類由關(guān)系詞引導(dǎo)的從句，因?yàn)檫@類從句的句法功能多是做定語(yǔ)，所以曾被稱為定語(yǔ)從句，這類從句除了可以做定語(yǔ)之外，還可以充當(dāng)狀語(yǔ)等其他成分，所以現(xiàn)代語(yǔ)言學(xué)多使用“關(guān)系從句”這一術(shù)語(yǔ)。下面是小編為大家整理的why引導(dǎo)定語(yǔ)從句例句，歡迎閱讀！
when，where，why作為定語(yǔ)從句的引導(dǎo)詞，總稱為關(guān)系副詞。下面用句子合并的方法分析它們的使用。
一、where引導(dǎo)的定語(yǔ)從句
請(qǐng)分析下面兩個(gè)簡(jiǎn)單句：
句①I know a garden.
句②You can find wild strawberries there.
把句②變?yōu)榫洧俚亩ㄕZ(yǔ)從句，句①中的agarden做定語(yǔ)從句的先行詞。在句②中there指句①中提到的agarden也就是定語(yǔ)從句的先行詞，there在句中做地點(diǎn)狀語(yǔ)，因此要用where引導(dǎo)定語(yǔ)從句，代替句②中的there，也就是說(shuō)there就不能出現(xiàn)在定語(yǔ)從句中了。由此得到句③I know a garden where you can find wild strawberries.
句②還可以寫作句④You can find wild strawberries in it(it指句①中的garden，“在花園中”要使用介詞短語(yǔ)in the garden)。把句④變?yōu)榫洧俚亩ㄕZ(yǔ)從句，因?yàn)閕t做介詞in的賓語(yǔ)，先行詞是agarden，指物。在這種定語(yǔ)從句中介詞常常提到定語(yǔ)從句的開(kāi)始，這時(shí)關(guān)系代詞只能使用which替代it，it就不能在定語(yǔ)從句中出現(xiàn)了。由此得到句⑤即：I know a garden in which you can find wild strawberries.
請(qǐng)把下面每組的兩句話合并為一句，把第二句話變?yōu)榈谝痪涞亩ㄕZ(yǔ)從句。
第一組：
This is the village.
I was born there.
→This is the village where I was born.
第二組：
The lab is not far from here.
The chemist often does experiments there.
→The lab where the chemist often does experiments is not far from here.
二、when引導(dǎo)的定語(yǔ)從句
請(qǐng)分析下面兩個(gè)簡(jiǎn)單句：
句①We shall remember the days.
句②We studied together then.
把句②變?yōu)榫洧俚亩ㄕZ(yǔ)從句，句①中的the days做定語(yǔ)從句的先行詞。在句②中then指句①中提到的the days，也就是定語(yǔ)從句的先行詞，then在句中做時(shí)間狀語(yǔ)，因此要用when引導(dǎo)定語(yǔ)從句，代替句②中的then，也就是說(shuō)then就不能出現(xiàn)在定語(yǔ)從句中了。由此得到句③We shall remember the days when we studied together.
句②還可以寫作句④We studied together during the days.(介詞短語(yǔ)during the days含義為“在這些日子里”)。把句④變?yōu)榫洧俚亩ㄕZ(yǔ)從句，因?yàn)閠he days做介詞during的賓語(yǔ)，先行詞是the days，指物，在定語(yǔ)從句中介詞during提前，用關(guān)系代詞which替代the days，the days就不能在定語(yǔ)從句中出現(xiàn)了。由此得到句⑤We shall remember the days during which we studies together.
請(qǐng)把下面每組的兩句話合并為一句，把第二句話變?yōu)榈谝痪涞亩ㄕZ(yǔ)從句。
第一組：
Ive always longed for the days.
I should be able to be independent then.
→Ive always longed for the days when I should be able to be independent.
第二組：
There are moments.
I forget all about it then.
→There are moments when I forget all about it.
三、why引導(dǎo)的定語(yǔ)從句
請(qǐng)分析下面兩個(gè)簡(jiǎn)單句：
句①He wanted to know the reason.
句②I was late for the reason.
把句②變?yōu)榫洧俚亩ㄕZ(yǔ)從句，句①中的the reasons做定語(yǔ)從句的先行詞。因?yàn)閠he reason做介詞for的賓語(yǔ)，先行詞是the reason指物，在定語(yǔ)從句中介詞for提前，用關(guān)系代詞which替代the reason，the reason就不能在定語(yǔ)從句中出現(xiàn)了。由此得到句③He wanted to know the reason for which I was late.
注意：在定語(yǔ)從句中當(dāng)先行詞為the reason(s)，定語(yǔ)從句由for which引導(dǎo)時(shí)，可以用why代替for which。由此我們得到句⑤He wanted to know the reason why I was late.
請(qǐng)把下面兩句話合并為一句，把第二句話變?yōu)榈谝痪涞亩ㄕZ(yǔ)從句。
The reason is not very convincing.
He came for the reason.
→The reason why he came is not very convincing.
The reason for which he came is not very convincing.
■鞏固性練習(xí)
一、合并句子
請(qǐng)把下面每組的兩句話合并為一句，把第二句話變?yōu)榈谝痪涞亩ㄕZ(yǔ)從句。
1.There came a day.The rain fell at last then.
2.This is the hour.The place is always full of women and children then.
3.We will start at the point.We left off there.
4.Give me one good reason.I should help you for the reason.
5.This is the factory.His father works there.
6.I dont know the reason.You quarreled with him.
7.Ill never forget the days.We studied together then.
二、鏈接高考
1.All___is needed is a supply of oil.
A.the thing B.that C.what D.which
2.Finally，the thief handed everything___he had stolen to the police.
A.which B.what C.whatever D.that
3.In fact the Swede did not understand the three questions____were asked in French.
A.where B.who C.in which D.which
4.Can you tell me the name of the factory___you visited last week？
A.what B.where C./ D.when
5.His parents wouldnt let him marry anyone___family was poor.
A.of whom B.whom C.of whose D.whose
6.After living in Paris for 50 years he returned to the small town____he grew up as a child.
A.which B.that C.where D.when
7.The film brought the hours back to me____I was taken good care of in that far-away village.
A.until B.that C.when D.where
參考答案
一、合并句子
1.There came a day when the rain fell at last.
2.This is the hour when the place is always full of women and children.
3.We will start at the point where we left off.
4.Give me one good reason why I should help you.
5.This is the factory where his father works.
6.I dont know the reason why you quarreled with him
7.Ill never forget the days when we studied together.
二、鏈接高考：1-5 BDDCD 6-7 CC
當(dāng)使用why引導(dǎo)定語(yǔ)從句時(shí)，需要注意以下幾個(gè)關(guān)鍵點(diǎn)：
1. 先行詞限定
先行詞必須是reason：why引導(dǎo)的定語(yǔ)從句中，其先行詞通常且只能是reason，表示“原因”的名詞。例如，“I dont know the reason why he looks unhappy today.”（我不知道他今天看上去不高興的原因。）
2. 關(guān)系詞作用
why作原因狀語(yǔ)：在定語(yǔ)從句中，why作為關(guān)系副詞，起到原因狀語(yǔ)的作用，用于說(shuō)明先行詞reason的具體內(nèi)容或原因。
3. 句式結(jié)構(gòu)
定語(yǔ)從句結(jié)構(gòu)：why引導(dǎo)的定語(yǔ)從句遵循“先行詞（reason）+ why + 從句”的結(jié)構(gòu)。從句部分是對(duì)先行詞reason的具體說(shuō)明或解釋。
4. 替換與省略
可替換為for which：在某些情況下，why可以替換為for which，兩者在定語(yǔ)從句中均表示原因狀語(yǔ)。例如，“The reason, for which I come here is that I want to get your help.”（我來(lái)這里的原因是我想得到你的幫助。）
省略情況：在特定語(yǔ)境下，why引導(dǎo)的定語(yǔ)從句中的why有時(shí)可以省略，但這種情況較為少見(jiàn)，且需確保省略后句子意思仍然清晰。
5. 區(qū)分同位語(yǔ)從句
與同位語(yǔ)從句的區(qū)別：同位語(yǔ)從句用于解釋說(shuō)明前面的名詞（如idea, fact, news等）的具體內(nèi)容，而定語(yǔ)從句則是對(duì)先行詞進(jìn)行修飾限定。當(dāng)why引導(dǎo)同位語(yǔ)從句時(shí)，其前面的名詞通常帶有“疑問(wèn)概念”，且why不能省略。例如，“I have no idea why he was late for class.”（我不知道他為什么上課遲到。）這里的why引導(dǎo)的是同位語(yǔ)從句，解釋說(shuō)明no idea的內(nèi)容。
6. 語(yǔ)義理解
理解定語(yǔ)從句的語(yǔ)義：在理解why引導(dǎo)的定語(yǔ)從句時(shí)，需要明確從句部分是對(duì)先行詞reason的具體解釋或說(shuō)明，而非對(duì)reason的簡(jiǎn)單重復(fù)或無(wú)關(guān)描述。
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