①speak +语言 ：说语言                       

speak to sb 跟某人说话

spoken [ˈspəʊkən] English 英语口语

English-speaking countries [‘kʌntriz]说英语的国家        English-speaking students 说英语的学生们

②say+说话的内容，         say “hello” to sb 跟某人说hello

                                         say sth in +语言： 用··语言说某事③talk to sb =talk with sb 跟某人谈话

                                          talk about sth谈论某事

④ tell sb sth =tell sth to sb 告知某人某事

                 tell sb （not）to do sth 告诉某人(不)干某事     

           tell stories(单数：tell a story)讲故事

                 tell sb stories=tell stories to sb给某人讲故事

                 tell sb a story=tell a story to sb)

                 tell lies 撒谎