一、考點(diǎn)聚焦
　　1、功能：相當(dāng)于形容詞，修飾名詞或代詞，在句中作定語(yǔ)
　　2、位置：定語(yǔ)從句置于被修飾詞之后
　　Those who are willing to attend the party, sign here please.
　　3、先行詞：被定語(yǔ)從句修飾的詞稱(chēng)為先行詞
　?。?）先行詞一般是名詞和不定代詞，如:some-, any-, every-和no與-boy, -thing的合成詞；或all、none、any、some、that、those等代詞。數(shù)詞也可以作先行詞，人稱(chēng)代詞也同樣可作先行詞。
　?。?）先行詞與關(guān)系詞是等量關(guān)系。必須注意兩點(diǎn)：
　?、傧刃性~在從句中作主語(yǔ)時(shí)，從句謂語(yǔ)動(dòng)詞的數(shù)由先行詞而定。
　　This is the place which is worth visiting.
　?、陉P(guān)系詞在從句句子中充當(dāng)了成分，其意思就是先行詞的意義，所以在從句中不能重復(fù)其意。
　　There are many places we can visit（them）in China.
　　4、關(guān)系詞：引導(dǎo)定語(yǔ)從句的都稱(chēng)關(guān)系詞
　　關(guān)系代詞：who, whom, which, that, whose, as。
　　關(guān)系副詞：when, where, why。that偶爾也作關(guān)系副詞。
　　5、確定關(guān)系詞的步驟
　?。?）先找關(guān)系詞，看先行詞指的是什么。
　?。?）看關(guān)系詞在從句中所充當(dāng)?shù)某煞帧?/div>
　　6、在定語(yǔ)從句中，當(dāng)先行詞指物時(shí)，下列情況的關(guān)系詞宜用that而不用which
　?。?）先行詞被①形容詞最高級(jí) ②序數(shù)詞 ③數(shù)詞幾種詞修飾或被 ④only、any、few、little、　no、all、one of等修飾時(shí)。
　?。?）先行詞為all、much、little、none、few、one、something、anything等不定代詞時(shí)。
　?。?）先行詞中既有人又有物時(shí)。
　　He was looking pleasantly at te children and parcels that filled his bus.
　?。?）先行詞在主句中作表語(yǔ)關(guān)系詞在從句中作表語(yǔ)時(shí)。
　　The village is no longer the one that was 5 years ago.
　　（5）當(dāng)主句中含有疑問(wèn)詞which時(shí)。
　　Which are the books that you bought for me ?
　　7、宜用which而不用that的情況
　?。?）在非限制性定語(yǔ)從句中
　?。?）在關(guān)系詞前有介詞時(shí)
　?。?）當(dāng)先行詞本身是that時(shí)
　?。?）當(dāng)關(guān)系詞離先行詞較遠(yuǎn)時(shí)
　　8、關(guān)系詞who與that指人時(shí)，也有不同情況分別用不同的關(guān)系詞
　?。?）當(dāng)主句是there be句型時(shí)，關(guān)系詞用who。
　?。?）先行詞是為anyone、those、someone、everyone、one等詞時(shí)，關(guān)系詞用who。
　?。?）當(dāng)主句是who作疑問(wèn)詞時(shí)，關(guān)系詞用that。
　　Who is that girl that is standing by the window?
　?。?）whom在從句中只作賓語(yǔ)，可被who取代。
　　9、whose作關(guān)系詞既指人又指物，在從句中作定語(yǔ)。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.
　　10、關(guān)系代詞as,在從句中作主語(yǔ)、賓語(yǔ)和表語(yǔ)。
　?。?）先行詞被such和the same修飾，或句型as many（much）中，從句都用as 引導(dǎo)。
　　Such books as you bought are useful.
　　The school is just the same as it was 10 years age.
　　注意：區(qū)別①such … that … 引導(dǎo)的結(jié)果狀語(yǔ)從句。They are such
　　lovely children that we love them much.②the same … that … 引導(dǎo)定語(yǔ)從句。I want to use the same tool that you used just now.
　?。?）無(wú)先行詞的定語(yǔ)從句用as和which引導(dǎo)。
　　區(qū)別：①意義上：as 含有“這點(diǎn)正如……一樣”。②位置上：as 從句可置句首，也可在另處。
　　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.
　　11、關(guān)系副詞when與where、why、that
　　when 指時(shí)間 = in / at / on / during which
　　where指地點(diǎn) = in / at / from / which
　　why指原因 = for which
　　當(dāng)先行詞為way、day、reason、time時(shí)，可用that作關(guān)系副詞。（非正式場(chǎng)合）
　　I don’t like the way that / in which / he talks.
　　當(dāng)time作先行詞時(shí)，關(guān)系詞可以省掉。
　　This is the first time I have given you a lesson in French.