Hi, I will live in yichang for 4 months at least and I want to know if I can find some restaurant halal or muslim church (mosque).

There is a mosque in that city at No. 20, Xiaojia Lane (肖家巷). For the muslim food, there are about 50 muslim noodles restaurants in the city, so I am sure you can find the food.
If you can tell me your exact position in that city, I may tell you more.

I will be in internship in a local company and i don't know my future position, are you in that city?
And I want to practice football or muay thai boxing,do you know some sport club?

thank you in advance

I happened to be there last year, but now I no longer stayed there.
For the sports club, I only know a gym called Tiantian (Everyday) Gym at No. 131, Yiling Avenue, Wujiagang District. I think you may ask your colleagues in your company to find more club after you reach that city.