She paces the whole class in studying English industriously.

她在刻苦学习英语上给班同学树了榜样。

She paces the whole class in English study.

她在学习英语方班树榜样。

The heroes set us a noble example.

英雄们给我们树了崇高的榜样。

The responsibilities of a teacher lie not only in the inculcation of knowledge, but also in the setting of good examples and cultivating of virtues.

老师的责任不授知识，更要树良好榜样，培养学生的品德。