Explanatory text mainly examines the ability of candidates to obtain information accurately from the text, and the topic is mainly considered around quasi-confirmation reading, accurate understanding and accurate screening.

Disturbing factors are often set in examination questions: (1) Increase or decrease or enlarge, that is, change the sentences of the original text, and expand or narrow the scope of explanation by adding some words or reducing some words.

(2) To confuse the fish with the pearls, that is, to replace the correct words or sentences with specious ones, which leads to different meanings.

(3) Upset-down means that when setting options, the sentence relationship of the original text is intentionally disturbed, which makes it difficult to understand, such as reversing the causal relationship and disturbing the order.

(4) out of nothing, that is, using the thinking inertia of candidates, to induce candidates to take it for granted instead of sober rational thinking.

In the process of solving problems, there is a jingle: "Read the original text first to get the general idea, then read the stem of the question to mark it, find out the corresponding sentences in the range, and compare the options to see the differences."