What is the main idea of the passage? PART C Directions: You will hear three dialogues or monologues. Before listening to each one, you will have 5 seconds to read each of the questions which accompany it. While listening, answer each question by choosing A, B, C or D. After listening, you will have 10 seconds to check your answer to each question. You will hear each piece ONLY ONCE. 听力原文： Mark Twain who wrote the story we are going to read traveled quite a lot, often because circumstances, usually financial circumstances forced him to. He was horn in Florida Missouri in 1835 and moved to Hannibal Missouri with family when he was about 4 years old. Most people think he was born in Hannibal, but that is not true. After his father died when he was about 12, Twain worked in Hannibal for a while and then left, so that he could earn more money. He worked for a while as a typesetter on various newspapers, and then got a job as a river pilot on Mississippi River. Twain loved this job, many of his books show it. The river pilot job didn't last, however, because of the outbreak of the Civil War. Twain was in the confederate army for just two weeks, and then he and his whole company went west to get away from the war and the army. In Nevada and California, Twain prospected for silver and gold without much luck, but did succeed as a writer. Once that happened Twain traveled around the country giving lectures and earning enough money to go to Europe. Twain didn't travel much the last ten years of his life and he didn't publish much either. Somehow his travels, even when forced, inspired his writings. Like many other popular writers, Twain derived much of the materials for his writing from the wealth and diversity of his own personal experiences. The speaking focused on which aspect of Mark Twain's life?