所谓难句是针对学生的理解而言,我们把课文中教师讲解前,大多数学生无法正确把握含义的句子称作难句。根据理解时障碍的不同可以把难句分为三类:第一类是内容上的由于词语生僻造成的理解障碍,第二类是特殊表达方式造成的理解障碍, The so-called difficult sentence is for students to understand, we explain the text before the teacher, most students can not correctly grasp the meaning of the sentence is called a difficult sentence. According to the barrier of understanding can be divided into three types of difficult sentences: the first category is due to uncommon words on the understanding of obstacles, the second is the special expression of the obstacles caused by the understanding,