单项选择题


Many instructors believe that an informal, relaxed classroom environment is 1 to learning and innovation, It is not uncommon for students to have 2 and friendly relationships with their professors. The 3 professor is not necessarily a poor one and is still 4 by students, Although students may be in a(n) 5 position, some professors treat them as 6 , However, no mat-tar how 7 professors would like to be, they still are in a position of 8 .
Professors may 9 social relationships with students outside of the classroom, but in the classroom they 10 the instructor’s role. A professor may have coffee one day with students 11 the next day expect them to 12 a deadline for the 13 of a paper or to be pre-pared 14 a discussion or an exam. The professor may give 15 attention outside of class to a student in 16 of help but probably will not treat him or her differently when it 17 evaluating school work, Professors have several roles 18 students; they may be counselors and friends as well as teachers. Students must 19 that when a teacher’s role changes, they must appropriately 20 their behavior and attitudes.

A. suppose
B. suggest
C. realize
D. assume