Question

Review the text.
)) Before tuning a guitar, first learn the name of each string. A guitar has six strings: the first is on the bottom, and it's the thinnest. The sixth string is on the top, and it's the thickest. Starting at the bottom, the notes run up E,B, G, D, A, and E.
)) If you have an electric tuner, hold it near the guitar and pluck the high E string (the one on the bottom) first. The tuner will determine whether the note produced by the string is flat (too low) or sharp (too high). Pick each of the remaining strings. Depending on what the tuner tells you, loosen the string to make the note lower or tighten it to make the note higher.
) Which best shows that the author's purpose is to explain how to tune a guitar?
①）
The author contrasts flat notes with sharp notes.
The author outlines the steps that readers should take to tune a guitar.

Answer 1

The second statement. The passage gives step-by-step instructions (learn string names, use a tuner, pluck each string, loosen or tighten) showing its purpose is to explain how to tune a guitar.