In order to meet the learning needs of high school English academic courses, students need to have a certain level of English before entering high school. To this end, Maple Leaf has developed a complete set of English graded courses specifically for Chinese students, and has formulated curriculum standards, graded test standards, teaching quality assessment standards and PPPS high-efficiency classroom model. "Maple Leaf English" has nine levels, with an English vocabulary of 3,000 words for levels 1-6 and 3,000 words for levels 7-9, totaling 6,000 words, which is much higher than the English vocabulary level of ordinary high school graduates. Students who pass the Maple Leaf English Level Test (MELT) Level 7 exam will reach the ability to study high school English academic courses in English.