I have been enjoying the BBC Youtube channel. I particularly like this guy they have doing entertaining videos about idioms. I know what you’re thinking: ‘Patrick, that’s not very academic!’ and you would be right. This is not the language that you’ll be using in your essays! However, this is the language that lecturers use in your lectures and that you’ll hear from native English speakers all the time. Even if the individual idiom itself is not that important, of course you are listening and enjoying listening to English so get on with it!
You can see the whole channel here.