originated from the British English in 17th ~18th century. From 1607 the British
established the first colony in America “James city” in 1775 to the outbreak of the
American Revolution; the British had established 13 colonies in North America. And at the
same time the British colonists bought Shakespeare and Milton English into America. At
this time, this language was commonly referred to the “North American English” or
“Colonial English” .This ancient language absorbed the local Indians and other European
languages of the immigrants in the new environment and went on to form a mature
language in the new world- AE . Of course, different historical environment gives it a
different name. After the war of independence and the rise of nationalism, Americans had
named their language “English in the USA” or “Americanism “In 1806, Noah Webster
firstly created the wording of American English. Since then, this word becomes the fixed
expression of American English. The boldest definition of the concept of American
English is put forward by American famous writer and journalist Henry Mencken. His
masterpiece The American language collects rich material on American English. Although
his avocation is controversial, its influence is very extensive. (Hou Weirui, 1992:9)
American English has three main dialects: (1) the eastern dialect (Eastern American
Speech); (2) the southern dialect (Southern American Speech); (3) General American
(GA).GA is also known as the Western dialect (Mid – Western American Speech).
Statistics show that in the United States, 70% of people speak GA, and it’s widely used in
textbooks, broadcast, television and so on, which become a fashionable thing in learning
English pronunciation.
1.2 Research background and method
Since the first English settlers stepped on North America in 1607, more than four hundred
years had been passed. In this long period of years, American English and British English
develop respectively and continuously, gradually forming into different languages. And
this phenomenon is called language differentiation. Due to the internal and external effect,
language not only evolutes forward in its internal structure constantly, but also differentiate
into various variants of each language, such as AE become the variants of BE. They both
share the same history origin source but develop towards two directions gradually. Both of
them have formed their own characteristics in the use of words, grammar, spelling and
pronunciation, the differences of language pronunciation is most significant. As long as a
person speaks English, other people can know whether he is an American or British from
his accents. For English Language learners, understanding the significant differences
between the two kinds of language, especially in pronunciation, listening, spoken English
by comparing AE and BE is to be of great advantage for learners to improve the standard
of English further. On the other hand, understanding the difference of two languages can