CHINESE COLLEGES ADMISSION REQUIREMENTS

First, you need to find a university you like and suitable for you. You need to consider whether the university has your major, which is the most important thing. Then you need to searh the university you plan to apply. Generally speaking, there is a program called " Internation Exchange" on the website of the university. There is plenty of information under that program, which will tell you the qualification, requirements for different major and so on. After that, you can follow the procedures they offer you to prepare.
As for your second question, I think many Chinese universities can provide foreign students course. Could you give me more detail information on choosing a university? For instance, what is your preference city or province in China or what kind of major do you want to learn? If you tell me some information like that, I may give you a list of availabe universities.