Unit 1  Living Well   
How many different types of disabilities do you know?
disability: the state of being disabled / unable to use his/her body properly
Lead-in     
How many different types of disabilities do you know?
A .physical disability      B .mental disability
deafness, dumb/mute, blindness, lame(跛足), nearsightedness, color blindness, paralysis( 瘫痪）
depression, learning difficulty brain injury …