1. Give an overview of American Realism. 用英语解释一下

American Realism is a literary movement that originated in the late 19th century in America. It aimed to reflect the social reality of the time by depicting ordinary people and various problems in daily life. This literary genre emphasizes realism, objectivity and detailed description, and attempts to present characters' inner experiences and emotions. Representative works of American Realism include Mark Twain's "Adventures of Huckleberry Finn" and "Adventures of Tom Sawyer," Stephen Crane's "The Red Badge of Courage," and Theodore Dreiser's "Sister Carrie," among others.