Read five pages of an academic article in English related to your field of study and create a personal set of vocabulary items you would like to use. Define them and try to use them in a phrase.
It should be between 8 - 10 words.
You can use http://www.jstor.org/ to search for free articles. This service is pre-paid for you by Charles University. Therefore you should log in through the institution.
Upload the document onto Moodle.