In this handout there are some ideas to help you prepare your ISE III (C1) topic presentation (Structure, useful language, relevant aspects…). They can also be helpful to students at some EEOOII in Spain who are required to prepare a presentation as part of their C1 English test.
In this video I explain these ideas, as well as provide you with useful language for your presentation:
In this Trinity College London video you can see a sample Speaking & Listening exam. The first part is the topic presentation. It might be useful to watch it to help you get an idea of what the exam is like, so you can get acquainted with it. You can start watching 28 seconds into the video.