I had absolutely no doubt that I could go into the classroom and find evidence that teachers operante on the 1______that boys were more important.(This does not mean that they realized this.It was not 2_______a conscious thing on their 3________. )
1A.supposition B.thought
2A.necessarily B.just C.possibly D.absolutely
3Apart B.mind C.side D.role
这三道题的答案都是A。请解释一下为什么?
还有这段话是什么意思？
非常感谢！

1.supposition是假定 thought 想法
第一道出得不错，你先空着别填。看后面那句：This does not mean that they realized this.这句话的意思是：但这并不表示老师们意识到了。
他们连意识都没意识到，这么会有什么主观想法呢？
Supposition带有这种成分——有意无意，潜意识中的一种思维定式。老师们在不经意的小动作，表达对男生的偏爱。所以我觉得supposition要比thought好
2.A 不一定B仅仅C可能D 必然
这句话要填出来，还得看前面那句This does not mean that they realized this.
最贴切的就是A了：这不一定被身处其中的老师们意识到

3.on one's part 从……的角度来看
on one's mind 使某人担忧
on one's side支持某人
on one's role 好像没有

翻译喽!
我绝不怀疑，我在学校（教室）里，能找到老师偏爱男孩的点点滴滴（但是这并不表明老师们意识到这点）对于身处教师职位的老师而言，潜意识让他们不自觉地这么做。