I冠词概念冠词是置于前、说明所指的人或事物的一种虚词。冠词也可以说是名词的一种标志,它不能离开名词而单独存在。种类:a/an,定冠词the的用法:特指双熟悉,上文已提及世上独无二,序数最高级某些专有名,习语及乐器1)Whenwesawhisface,weknewwasAthenewsBsomenewsCanewsDnews2)Doyouknowthegirlwhoisstandingthere?3)thesun,themoon,theearth,theworld4)ShanghaiissecondlargestcityinCAaB/CtheDone5)thePacificOcean,theYellowRiver,theUnitedStates6)playthepiano7)---Doyouknowwhoinventedtelephone?---No,butitisreallymostuseful