Appendix IKey to Exercises (Units 1-8)Unit 1Part I Pre-Reading TaskScript for the recording:Ways of learning is the topic of this unit. It is also the topic of the song you are about to listen to, called Teach Your Children sung by Crosby, Stills and Nash.Teach Your ChildrenCrosby, Stills and NashYou, who are on the road,Must nave a code that you can live by.And so, become yourselr,Because the past is just a goodbye.Teach your cbildren well,Their lathers hell did slow