1、1.Spontaneous overflow of powerful feeling 2.creation of a world of imagination 3.return to nature for material 4.sympathy with the humble and glorification of commonplace 5.expression of inpidual genius 6.interest in Milton and Elizabethan Age for literature model 7.interest in old stories and medieval romances 8.rebellius spirit 9.expression of melancholy and gloomy mood。