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)When we saw his face, we knew was A the news B some news C a news D news2) Do you know the girl who is standing there?3) the sun, the moon , the earth, the world4) Shanghai is second largest city in CA a B / C the D one5) the Pacific Ocean , the Yellow River, the United States6) play the piano7) ---Do you know who invented telephone?---No , but it is really most useful