Here's a few activities for part 1 of this unit "I'm going to." The ppt contains instructions for doing the activities, which you can pop right into your presentation.
The first activity is a speaking practice - students interview each other about their future plans. Pretty straightforward, my guys took 5-10 minutes to do it.
The second activity is a board game which I've adapted from the ever-useful bogglesworldesl.
The third activity is the speaking game "I'm going on a picnic". The first kid says, "I'm going on a picnic and I'm going to take an apple." The next kid says, "I'm going on a picnic and I'm going to take an apple and a blueberry." The next kid says "I'm going on a picnic and I'm going to take an apple, a blueberry and a cake." and so on. The first slide and general idea came from someone else on here (thank you!) I just added a few more slides to help explain the game to your kids. This could take a pretty long time if you let it.
I also strongly recommend starting or ending the lesson by showing this video of some lions getting schooled by a crocodile and some buffalos, pause the video every few seconds and encourage your students to say what they think will happen next.
http://www.youtube.com/watch?v=5U3gtsAqxTQI'm not planning anything myself for the second part of this lesson because TROGDOR! ^^