an adverb is a word that modifies or describes a verb, an adjective, or another adverb. In this case, 'carefully' modifies the verb 'read' in this sentence 'She read carefully.' It explains how the verb is done.
Adverbs are usually placed after the verb they modify; adverbs of frequency (e.g. often, never) usually come before the main verb, and adverbs of manner (e.g. carefully, quickly) usually come after the main verb.
1. 'I am carefully planning my schedule.'
2. 'He quickly finished the task.'
3. 'She never spoke too loud.'
In general, adverbs and adverbial phrases in the English language can provide readers with a sense of attitude and tone. For example, using 'carefully' in a sentence can convey a sense of caution or precision in the action being described. It is important to remember that adverbs can help shape the attitude or tone of the sentence, so be thoughtful when choosing the appropriate adverb for a given sentence.