parentage of the two leading varieties
3.This paper is to concisely and systematically discuss the difference between American English and British English in pronunciation、spelling、use of words and grammar,analyse the main factors leading to the difference and envision the optimistic future of a standard English by mutually remedying defect and perfect blending of the two varieties of English from the viewpoint of social and time development and the visual angle of history changing and economic progressing in America.


