Urgent need of a help? Pls pls pls help me out?

You must not be nervous.That will increase your fluency.I advise you to explain harry potter as it is easy to explain.Spider man also will be perfect to explain. You have a trial in your speech.Be confident and sturdy.Look upright and have a good presence.You can tell that the film(of your choice) took you to an entirely different world.You can add some comparisons if needed.Don't concentrate more on style at first. If you are confident and if your sppech is gramatical, style will automatically come to you.Best of luck.