I'm not quite clear on how advanced this obnoxious eight-year old's English is.
Couldn't you bring in some visual stimuli like DVDs (with English subtitles) and have him fill in a questionnaire afterwards?
Let me know if you need any stuff since I've got eleven-year-olds on my hands and their English is poor at best.
Still,they took to 'Pirates of the Caribbean'(highly unsuitable for an eight-year old I might add) like ducks to water.
- For Teachers