Final answer:
The three phases of alcoholism are abuse, dependence, and addiction. Social isolation is not considered a phase of alcoholism but may be a consequence of the condition due to negative changes in personal relationships and behaviors.
Step-by-step explanation:
The three phases of alcoholism include abuse, dependence, and addiction, but not social isolation. Abuse refers to the excessive use of alcohol that may lead to problems with health, relationships, and daily functioning. Dependence occurs when sustained use of alcohol leads to a need for it to function normally, and it can be physical or psychological. Physical dependence produces symptoms such as tremors or seizures upon cessation of use. Addiction is characterized by a compulsive use of alcohol despite the negative consequences that come from such behavior.