Build up vocabulary and focus on basic grammar, such as: tenses/ connectors/ modifiers /intensifiers/ modals/quantifiers… Improve you writing skill (i.e. how to write a paragraph then an essay).
Furthermore, you will be able to deal with reading comprehension, understand the gist of various text types: argumentative, descriptive, narrative and scientific.
Eventually you are going to master the different aspects of your syllabus: lexically, semantically speaking and composition (writing) as well.