There were several parts of the Intolerable Acts, also known as the Coercive acts, but these are the main ones. First, the Boston Harbor was shut down until the colonists paid for the tea they destroyed in the Boston Tea Party. Secondly, colonists would be held on trial in Britain, rather than in the colonies. These acts also forced the colonists to let British soldiers reside in homes (Quartering Act) and stopped most shipments to the colonies to cut off trade to Massachusetts. Following the Intolerable Acts, Parliament passed the Quebec Act, which created a government for Canada and extended its territory south all the way to the Ohio River. This action ignored claims to that region made by the colonies.
The three most important parts were:
1) The Boston Harbor was closed.
2) The Quartering Act was created.
3) A government was created for Canada, ignoring the colonies' claims to the region.