Services often begin with a combination of prayer, responsive readings and music which simply celebrate being in God's presence. This is adoration. Fairly early in the service there is normally a prayer of confession. In confession we express both our individual faults and those of the community. Thanksgiving acknowledges God's goodness to us.
Thanksgiving is important in the Christian life.
As we thank God for things, we put those things into the context of our relationship with God. In Supplication we ask God for what we need. In worship, this supplication normally includes the needs of the congregation, nation, and world. Intercession is a specific kind of request, directed towards the needs of others. Through intercession we bear each other's burderns, and join the other members of the community in putting their requests before God.