Hehe, students, of course, live in student apartments. There are many student apartments in Shanghai. You can go to them. 70 yuan is very good. My classmates and I live in 30 yuan. Like schools, 70 yuan is probably a standard room. You can look for it online. The nearest is the Bund. You can also see the Bund at night. If you like, I will send you my information. I have been to the World Expo twice, and I can also exchange information about the new World Expo.
If you want to be safe, you'd better find one that can only be used by students, because you can't live without a formal student ID card. You need an ID number and a student ID number to make an appointment by phone.