VOA慢速英语 美国大学教师如何晋升职称

　　Professors on the tenure track teach classes, advise students and carry out research. They also serve on committees and take part in community activities.

　　Other teachers are not expected to do all this. They are not on a tenure track. They are called adjuncts.

　　An adjunct professor is hired to teach for a limited time, usually one semester. Adjunct professors may have a doctorate. But they receive lower pay than those on the tenure track and have no job security.

　　The American Association of University Professors says sixty-eight percent of all teacher appointments at American colleges today are adjuncts. College officials say one reason is low budgets. Another is having the freedom to change teachers as courses become more or less popular. They also say part-time adjuncts can provide real world experience for their students.

　　But the AAUP and other college officials say too many adjuncts mean lower educational quality. They say adjuncts do not have the time or support to help students outside class. And they say fewer tenure track positions mean fewer people to work with students, create new courses and serve on committees.

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