Read the【Case Reflection】in section 1 and help Mr K to analyse the possible causes.

【Case Reflection】

Mr Wang is a young English teacher who has just started his teaching career. He thinks that there are two aspects of teaching objectives in middle school English class. The first one requires students to master words, phrases and grammar rules; the second requires cultivation and improvement in the students' listening, learning, reading and writing skills. He is able to complete his teaching tasks very well in each of his lessons. However, in the listening and reading tests at the end of the term, the scores of his students are not satisfactory. He finds that although the students find no real obstacles in dealing with words and syntax, they cannot comprehend the texts well, and sometimes demonstrate quite poor understanding of overall text meaning. Mr Wang is very distressed, and has begun to reflect on whether there is something wrong with his teaching methods. Please help Mr Wang to analyse the causes in relation to the reasonableness of his teaching objectives.