1. The instructor may have to communicate with students personally to offer help and remind them of the need to keep up.
    正如许多优秀教师不能有效地用网络辅导教学一样，并不是所有学生都具备在网上学习中取得成功所需的素质。

2. He will be an instructor in English.
    他将当英语讲师。

3. In this way, students gain great insight from their peers, learning from each other as well as the instructor.
    这样，学生可以从同龄人那里获得真知灼见，既向老师求教，又互相学习。

4. In a positive online environment, students feel valued by the instructor, by their classmates and by their own work.
    6. 三思而后答。