Let's start with a speaking post. Click on the following link to download the copies I showed you in class.
Here's another summary of the aspects you should cover in your description:
This is a useful presentation including the vocabulary you can use in the speaking test divided into several topics. Have a look at it:
And finally, some sample materials for the speaking test. You can use them to practise at home:)
Unit 3 sample
Unit 1 sample
Unit 4