1. Bookstore of Jiupang Education Supermarket (basement 1) in Southwest China: Not only do you have genuine woolen scarves, they are long, warm and lovely, and the price is reasonable. You can also buy wool to knit for yourself.
2. Out of the south school gate, there is a jewelry store (next to the delicious duck neck) at the bus stop of Chifeng Road: there are many kinds of scarves, so you can go and have a look.
3. In fact, the best place is Fudan Commercial Street: take Tongji-Fudan Green Passage and ride 10 minutes. There are countless jewelry stores and booths here. You can bargain and you can definitely buy what you want.
I hope it helps you! : )