填空题
.Academic Titles at US Colleges
Ⅰ. Tenure professors ■A
21 is usually needed
■The appointment is
22 ■They can't be
23 Ⅱ. 24 ■The first job on the tenure track
■
25 years to gain tenure
■If tenure is
26 , they have to find another job
Ⅲ. 27 ■Assistant professors who receive tenure
Ⅳ. Adjunct professors ■Teach for a
28 ■Lower pay and no
29 ■Account for 68% of all teacher appointments
partly because of
30 ■Have no time or support to help students
Ⅴ. Visiting professors Get a job at one school but works at another
Ⅵ．Lecturers ■Teach classes
■A doctorate is not a necessary condition