In Act 4 Scene 3, What are three examples of foreshadowing in this scene.

Othello and Desdemona’s speeches about love foreshadow the disaster to come; Othello’s description of his past and of his wooing of Desdemona foreshadow his suicide speech; Desdemona’s “Willow” song and remarks to Emilia in Act IV, scene iii, foreshadow her death.

Source: http://www.sparknotes.com/shakespeare/othello/facts.html

Desdemona’s “Willow” song and remarks to Emilia in Act IV, scene iii, foreshadow her death.

Emilia laments,"let husbands know, their wives have sense like them they see, and smell, and have their palates both for sweet and sour, just as their husbands have." This might forshadow Othello finally understanding what a stupid head he has been.