Your answer may include the following points:
The first scene of act I takes place in the open wasteland during a thunderstorm. The setting is perfect for the audience to be introduced to the three witches, who will influence the other characters and in turn influence the plot. The three sisters depart saying “Fair is foul, and foul is fair,” which introduces the play’s themes of moral confusion and appearance versus reality. When we meet Macbeth in scene III, his first sentence is “So foul and fair a day I have not seen.” The audience then connects him to the witches. The stormy weather is connected to the upcoming unnatural occurrences. Thunder is heard each time the three witches enter the stage.
In scene VI, Duncan enters Inverness with his sons and Banquo. Unaware that it is the site of his upcoming murder, Duncan praises the castle for its peaceful and pleasant atmosphere. The outward appearance of the castle strongly contrasts with the conspiracy brewing inside. Unaware of Macbeth’s intentions, Banquo describes Inverness as the perfect nesting place for the martlet, a
