There are three steps when doing homework reading questions. Read the full text first, then all the topics, and finally read the full text. During the exam, because time is tight, we should get rid of the "first" and write articles while reading the topic.

Narration is mainly about understanding and explanation. Just look for it from the text, and "stay in the scenery" and change yourself into the protagonist.

Argumentative writing, as long as the test is argument, argument and understanding. Arguments and arguments are found in the article, and the understanding method is mainly to understand the words related to sentences in the topic.

Explanatory text, the most common test is to ask you to explain the method and why you use this. Just memorize the nine explanations. The method of understanding is mainly to synthesize the words related to sentences in the topic to understand.

In fact, all three are similar, just reading the article.

I hope my point of view can help you.