第一部分：阅读理解（共两节，满分50分）第一节（共20小题，每小题2分，满分40分） a our need to communicate with each other has been a driving force in the development of technology．in the 20th century we have seen the invention of the radio，television，telephone and fax，and today the internet has opened up a whole new way of communicating．we now have instant messaging services such as icq or china's qq and chat rooms where people can join group
