beside prep.在...旁边
e.g.:There is a supermarket beside his house.
besides adv.除了...还 (都包括在内)
e.g.:Besides English,i'm good at Art as well.除了英语外,我还擅长与艺术.
except adv.除了...以外 (从整体中去除)
e.g.:Everybody is here except Tom.除了汤姆,其他人都在这儿.
except for 除了...以外 (除去整体中的小部分细节)
e.g.:The car is very nice,except for the price.除了价格以外,这部车都挺好的.