Lin Chongde, a Chinese well-known psychologist once said that the secrets of geniuses lie in strong interest and good habits。 With or without habits, one can differ greatly in his life。 Originated from the instinct to pursue happiness, it is the motivation that prompts us to succeed in different fields。 There are many idioms, for example, “We talk on principle, but we act on interest。” and “Interest will not lie”, manifesting that one will not feel bored when feeling interested in something。 Furthermore, he will work with perseverance even forgetting food and sleep until success。 However, limited by things they care, the interest of children is easy to shift with the lack of motivation。 With long-term practices of the Pacific Children English, it concludes that interest is the biggest motivation to learning English。 It is advantageous for children to learn language by providing them various and abundant teaching materials in the process of imitating, performing, playing and singing。 In order to achieve the expected effect of learning with joy, teachers should help students throw themselves into a favorable environment by motivating their perceptive functions with the help of cartoons, daily experiences or English songs。 As the saying goes, interest is built on the basis of concern。 Learning by playing motivates the interest of students and relaxes them as well。 In order to achieve the goal of improving the comprehensive competence of language application abilities, teachers should find effective ways to intensify the training of listening, speaking, reading and writing in a comfortable language environment。