单选题 Many instructors believe that an informal, relaxed
classroom environment is {{U}} {{U}} 1 {{/U}} {{/U}}to learning
and innovation, It is not uncommon for students to have {{U}} {{U}}
2 {{/U}} {{/U}}and friendly relationships with their professors. The
{{U}} {{U}} 3 {{/U}} {{/U}}professor is not necessarily a poor
one and is still {{U}} {{U}} 4 {{/U}} {{/U}}by students,
Although students may be in a(n) {{U}} {{U}} 5 {{/U}}
{{/U}}position, some professors treat them as {{U}} {{U}} 6
{{/U}} {{/U}}, However, no mat-tar how {{U}} {{U}} 7 {{/U}}
{{/U}}professors would like to be, they still are in a position of {{U}}
{{U}} 8 {{/U}} {{/U}}. Professors may {{U}}
{{U}} 9 {{/U}} {{/U}}social relationships with students outside of
the classroom, but in the classroom they {{U}} {{U}} 10 {{/U}}
{{/U}}the instructor's role. A professor may have coffee one day with students
{{U}} {{U}} 11 {{/U}} {{/U}}the next day expect them to
{{U}} {{U}} 12 {{/U}} {{/U}}a deadline for the {{U}}
{{U}} 13 {{/U}} {{/U}}of a paper or to be pre-pared {{U}}
{{U}} 14 {{/U}} {{/U}}a discussion or an exam. The professor may
give {{U}} {{U}} 15 {{/U}} {{/U}}attention outside of class to a
student in {{U}} {{U}} 16 {{/U}} {{/U}}of help but probably will
not treat him or her differently when it {{U}} {{U}} 17 {{/U}}
{{/U}}evaluating school work, Professors have several roles {{U}} {{U}}
18 {{/U}} {{/U}}students; they may be counselors and friends as well as
teachers. Students must {{U}} {{U}} 19 {{/U}} {{/U}}that when a
teacher's role changes, they must appropriately {{U}} {{U}} 20
{{/U}} {{/U}}their behavior and attitudes.
【答案解析】[解析] 四个选项的意思分别是inferior“此等的，低等的”；minor“次要的，较小的”；low“低下的，卑微的”；subordinate“下级的，附属的”。根据语境，以及subordinate的含义是someone who has a lower position and less authority than someone else in an organization，推出正确答案是D选项。