Teachers at American colleges and universities have many different teaching methods. Some teachers give homework and check homework every day, and students in their classes have to take many exams. Some teachers give only writing tasks. Some teachers always follow a course outline and usually use the textbook. Others send students to the library for tasks.
The atmosphere(气氛) in some classrooms is very formal. Students call their teachers Professor (教授) Smith, Mrs. Jones and so on. Some teachers wear business clothes and give talks. Other classrooms have an informal (非正式的) atmosphere. Students and teachers discuss their ideas. Teachers dress informally, and students call them by their first names. American teachers are different in their teaching styles.
At most American colleges and universities, libraries and learning centers can be used by students at any time. They can often use tape recorders, video machines and computers. They can buy books, notebooks and other things at campus stores. There are also services (服务) to students. They can get advice on their problems from their teachers. Colleges and universities usually offer facilities (设施) to students. Some schools have swimming pools and tennis courts. Most have fast food restaurants.
