Looking for preparation courses in bio science

Hello, I’m loking for preparation courses in biology, physics, maths and chemistry. ( 1 months course from the end of March until 26 of April)
Next year I’ll be studying environmental science ( in English), therefore I’m looking for some reviews to refresh my knowledges in these subjects. If you happen to know someone or a college / uni who offers what I’m loonking for, please be so kind as to notify me immediately.
Thank you.