All you need to do is just print the extract out and read it to your class. See if they can work out what genre it is. This is a useful way to start or end your lesson.
Why not come back regularly and collect the extracts?
 

This extract has been taken from David Orme's Cpatain Stardust and the Space Pirates.
This book is part of the Longman Book Project.
Click here for more information on the Longman Book Project.

 

Captain Stardust and the Space Pirates

Scene 3 - The Planet of the Rainbow Crystals
(Captain Stardust, Annie and Tom are on another expedition on the planet's surface.)
Stardust I wander if we can communicate with them in anyway?
Annie They may not be intelligent enough for that. In any case, they don't make sounds.
Stardust But why do they keep changing colour?
Tom Maybe that is their way of talking to each other.
Annie Good thinking, Tom. I will watch the colour changes carefully and see if there are any patterns.
Stardust Hey, you two. I think we've got visitors!

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Can any of your class Spot the Genre? It is an extract from a play. How do we know that this is a play? (Look at features such as: scene, setting, character names etc.) What are the differences between writing a story and writing a play? (You could discuss the way a character's line is written. There are no phrases such as "he said", for example.) Ask you class to write the next scene. Who are the visitors and what do they say to Captain Stardust and his friends?