as引導(dǎo)的非限制性定語(yǔ)從句
　　在as引導(dǎo)的非限制性定語(yǔ)從句中，連接代詞as在句子中可以作主語(yǔ)、賓語(yǔ)或表語(yǔ)等，可以指人或物。其在定語(yǔ)從句中的位置比較靈活，即可以在句子前面，在句子中間或句子末尾。常用的結(jié)構(gòu)有：as we all know; as is well known to…; as is often the case; as is said/mentioned above; as has been said before; as I told you before; as is evident; as often happens; as can be seen; as is/was expected; as we expect; as I can remember等。
　　[注意1]as通常只指整個(gè)句子的內(nèi)容，不表示部分內(nèi)容。
　　[注意2]as引導(dǎo)的非限制性定語(yǔ)從句通常指“事先可以預(yù)料到的”“料想到的”，表達(dá)“好”的方面。
　　[注意3]as引導(dǎo)限制性定語(yǔ)從句時(shí)，常構(gòu)成the same…as…; such…as…; so/as …as…等結(jié)構(gòu)。在從句中既可以指人、物，也可以指整個(gè)句子。
　　[例句]
　　This is also part of your work, as I told you before. 我曾告訴過(guò)你，這也是你工作的一部分。
　　The man was a teacher, as was evident from his way of speaking. 從那人說(shuō)話(huà)的樣子可明顯看出，他是個(gè)老師。
　　Such ideas as he hits on are worthless. 像他那樣偶然想起的主意是無(wú)用的。
　　It’s the same story as I heard from her yesterday. 這故事跟我從她那兒聽(tīng)到的相同。
　　He will marry as pretty a girl as he can find. 他要盡可能找漂亮的女孩結(jié)婚。
　　Such people as have made great contributions to the world should be greatly respected.
　　那些對(duì)世界做出巨大貢獻(xiàn)的人們應(yīng)該受到極大的尊重。