Lack of passion from the beginning of my PhD I chose my current PhD position because of funding limitation and the reputation of my institute last year. After a year, it's a disaster, because I have no interest in my PhD project. I haven't read any papers in my personal time since I started my PhD. I'm not interested in what my labmates are doing whenever they are presenting. Though my project works perfectly fine, I just don't care about it. 

Many rumors prevail in our lab regarding our supervisor; for example not supportive to graduating PhD students. Therefore, the morale and atmosphere in our laboratory has been strange. Yet, I've managed to maintain a moderate relationship with him. I have worked as a summer student in several labs and understand that no lab is free of anecdotes from the supervisor.

My only concern is that my passion in science will decay with my project. A year ago, I still had the lust to ask infinite questions in the summer lab, but I'm like a dying whale on the beach today. I feel very sad, because my family and my friends have great expectation from me. 

I would like to change labs or start from a master's degree level again, but I'm not sure if it is feasible, especially since my supervisor is rather special. Please help me and give me some suggestions.
I'm afraid to say that I think you've worked this one out for yourself.

Completing a PhD requires passion and determination to get over the finish line. I remember someone once saying to me that they had done two PhDs but hadn't written either up... So they had actually not done a PhD at all. The point is that in a lot of ways, the writing up and creating a thesis is the hardest part because it requires so much time, energy, and dedication. If you don't feel like you have that for your subject then I would really consider your options.

As for your family (and friends)- they don't love you because you're on a PhD programme, that doesn't even come into it. More than anything in this world, they want you to be happy doing what makes you happy and I'm sure if they read your post just now they would tell you to stop and find something you really want to do.

Right now, it may be best to have a sit down with your supervisor and discuss how you're feeling and see if there is a way for you both to move forward that suits you both.