Which rhetorical method do you think is difficult to master in classroom teaching? Talk about your own teaching ideas and methods?

The most difficult thing to understand in rhetorical methods is the difference between metonymy and metaphor. It is easy to explain nouns. Metonymy means replacing the whole with a small part. For example, there are a group of red scarves on the playground, which is metonymy. Metonymy is a metaphor. But in specific teaching, it is difficult for students to master it. The difference between metonymy and metonymy can be started from the following four aspects: (1) The essence of metonymy is "metaphor". Although its ontology and metonymy did not appear, it implied a comparable object (namely ontology). The essence of metonymy is "generation", which refers to noumenon with certain characteristics of things and has no comparable object. Because metonymy is a metaphor, it can be supplemented by ontology and metaphor. There is nothing comparable to metonymy, so it is impossible to make up this way. ⑶ Metonymy can generally describe the non-existent ontology. Metonymy can only play the role of "generation", and the words it replaces are mostly nouns or noun phrases, which can't describe them. (4) In an article, if there is a figurative sentence of "××××××" in front, it is metonymy to use the vehicle directly below. It is necessary to analyze their respective characteristics in connection with actual sentences. If thousands of eyes are fixed on you, you will be caught if you reach out. "Clairvoyance" replaces thousands of people. She stared at me like eyes, which made my heart tremble. When the subject "she" appears, it can't be metonymy. Generally speaking, metonymy is closely related to ontology, and the author should explain it in the context. In addition, metonymy itself has a mixed color. Such as "Zhuge Liang", "Bole", "Bald head" and "a pinch of hair".