In the long history of Chinese civilization,many scholars have left beautiful poems describing exquisite classical Chinese gardens,including those of the emperor's temporary residences, rich families' flower gardens,or lofty imperial palaces. Today,when we pay visits to these gardens to appreciate the elegant halls,towers,pavilions and corridors,we can still feel the luxury and poeticism of the owners of these gardens,and cannot help feeling:“Though man-made,these gardens are so natural.”