用as造句定语从句用as造句定语从句as在定语从句中是什么意思？怎么用？as定语从句例句有哪些呢？定语从句as造句的句子(1)Asisknowntoall,Chinaisadevelopingcountry.(2)Heisfromthesouth,aswecanseefromhisaccent.(3)John,asyouknow,isafamouswriter.(4)Asastudent，Iamsupposedtoworkhard.定语从句中as的用法引导状语从句的连词as可以用作关系代词，引导定语从句，因而被称作准关系代词。1.准关系代词as引导限制定语从句，用于以下3个结构中，as在从句中作主语、宾语或表语：a.so/such…asSuchpeopleaswerementionedbyhimwerehonest.(as作主语)I’veneverseensuchaclevermanasheis.(as作表语)Lasttermourmathsteachersetsodifficultan(=suchadifficult)examinationproblemasnoneofusworkedout.b.thesame…asModernstatemenareoftenfacedwiththesameproblemasdefeatedtheancientRomans.(as作宾语)Ilikethesamebookasyoudo.(as作宾语)c.as…asAsmanychildrenascameweregivensomecakes.(as作主语)Heisasdiligentamanaseverlived.(as作主语)补充：a.such…as与such…that的区别such…as引导定语从句；such…that引导结果状语从句。TheytalkedinsuchsimpleEnglishaschildrencouldunderstand.他们用孩子们能听懂的简单的英语交谈。TheytalkedinsuchsimpleEnglishthatchildrencouldunderstandit.他们用十分简单的英语交谈，连孩子们都能听懂。Iwillprovideyouwithsuchthingsasyoumayneed.我要供给你一些你可以用得着的东西。Heshutthewindowwithsuchaforcethattheglassbroke.他如此用力地关门，结果玻璃碎了。b.thesame…as与thesame…that的区别：thesame…as指两物相似，thesame..描述的是同一物。ThisisthesamebagasIlostyesterday.这个书包和我昨天丢失的（书包）相似。（相似物）ThisisthesamebagthatIlostyesterday.这正是我昨天丢失的那个书包。（同一物）2.准关系代词as引导非限制定语从句。a.as引导非限制性定语从句，只代表主语或主句的一部分所表达的意思(不能指代某个名词或代词)，可以放在主句前，后或中间，在从句中作主语或宾语、例如：Asisknowntoall,heisthebeststudentinourclass.(as指代整个句子，作主语，置于句首)Heopposedtheidea,ascouldbeexpected.(as指代整个句子，作主语，置于句末)Asweallknow,hestudiesveryhard.(as指代整个句子，作宾语，置于句首)Taiis,asyouknow,aninseparablepartofChina.(as指代整个句子，作宾语，置于句中)常用的这类句式有：asissaidabove综上所述-asisknowntoall众所周知asisoftenthecase通常如此-asisreportedinthenewspaper如报纸所报导的b.主句具有否定意义，as引导的定语从句位于主句之后时，as指代得主句不包括否定意义，并可用but取代。例如：Whalesarenowfish,assomepeoplethink/butsomepeoplethinktheyare.Iamnoorator,asBrutusis.我不善言词,而勃鲁特斯却是个雄辩家.Spidersarenotinsects,asmanypeoplethink,norevennear1yrelatedtothem.蜘蛛不是昆虫,尽管许多人认为它是昆虫,它甚至与昆虫几乎没有关系.但as引导的定语从句谓语主句前时，as指代的主句仍包括否定意义。Ashasbeensaidabove,grammarisnotasetofdeadrules.正如前面所说的，语法不是一套死条纹。3.在非限制