Intertemporal Model Macroeconomics Basically, I have the full intertemporal model (the two period model) with the consumer, firm, and government, complete with the investment. And there is this question: Determine an equilibrium path with the case in which workers have a preference shock that reduces the disutility from work $h-l$ in first period. Preferences are back to normal in second period.
Note: $h$ is the number of hours available to work, $l$ is the number of hours spent on leisure, so essentially $h-l$ is the number of hours spent working.

What is this question trying to ask? If I understand the question, I probably will be able to answer.
You just have to write down some utility function that changes in each period, in the first there should be an additional term (shock) a constant multiplicative on the disutility of work that reduces it, and then in the second period this constant becomes one. 
A dynamic model solution is a vector of $(l^*_1,l^*_2)$ of the equilibrium hours of work that the consumer chooses according to her preferences, and restrictions.