unit2课时作业，也可作为定时训练
Unit2课时作业(一)
Ⅰ.介词填空
1．Should teachers be accountable for their students' exam results? Are you ________ favor of it?
[答案] in
2．The school is facing accusation of racism. I object ________ it.
[答案] to
3．You worked hard, but ________ the other hand, you earned a lot.
[答案] on
4．Apart ________ the usual aches and pains, she felt all right.
[答案] from
5．He knew that just across the border lay freedom. It is different ________
