The world is getting smaller and smaller,thanks to intensifying exchange of information caused by the development of Internet and increasing channels used for communication.We,standing at the front in making use of diversified information from all those channels,are in great demand for learning English as a useful tool to obtain considerable insights into diverse cultures and gain cutting-edge concepts as well as techniques from people around us.As the carrier of Western culture,English is to play an important role in stimulating communication among people,and act as the world language that everybody can make use of.