Language plays an important role in human life. Everyone tries to
acquire, learn and use language as means of communication and
simultaneously as social symbol of humanity. By using language, someone
could make statement, convey facts and knowledge explain or report
something as well as keep social relations among the language users. They are
to indicate that by means of language, people can express their ideas, felling,
information, etc through communication.
As one of the languages in the world, English is considered and applied
an international language. Since then, it is very popular and has been spoken
and learnt by almost people in the world. In a developing country like
Vietnam, English plays a vital role in various aspects. Especially, English can
be used for developing relationships in the global forum, for reading English
books (especially for English majors and researchers for approaching
human’s knowledge in English – the global language).