Of course , no approach can solve all problems , the process approach has its own limitations , too . the main problem is that , because of no writing class being offered , it is impossible to implement the process writing approach all the way in middle school english teaching 当然这种教学法也有一定的局限性,主要是由于没有专门的写作课,因而不可能将写作的每一个具体步骤完整地应用在写作教学过程中,只能将几个重点环节介入其中。