Read the sentences and realize what it means to add some words.

This usage means that we need to understand the meaning and function of the sentence by analyzing the words added in the sentence, so as to improve our reading comprehension and expression ability.

When reading sentences, there are several ways to understand the usage of added words:

1. Analyze the literal meaning of the added words and their meanings in the context, and pay attention to the relationship between the added words and other components of the sentence, such as subject-predicate relationship, modifier relationship, and coordinate relationship.

2. Experience the expressive effect of the added words, and pay attention to whether the added words have rhetorical functions, such as metaphor, personification, exaggeration and rhetorical question. And how adding words affects the tone, intonation and mood of sentences.

3. Add the source or background of the words in the association, and pay attention to whether the words have allusions, implications, extensions, hints and other meanings, and what role the words have on the idea, theme and center of the sentence.