Reading the scriptures well in liturgy is a gift of God. The scriptures are at the heart of Christian worship, where Christ speaks to those present. He sits in heaven and does not cease to speak on earth. Pray to be a channel of God's Spirit to the assembled community, and that the Spirit would open hearts to hear God's word. Prepare by regularly reading and praying the scriptures, knowing the context of the passages to be read, understanding how the readings relate to the season or feast, understanding the style of writing of the passage, and when needed, checking on pronunciation.
Many parishes have bible commentaries or Break Open the Word available to readers for borrowing.
Reading well is an art form as well as a gift. Practise aloud and frequently, with a critical friend if possible. Discover where the meaning of the whole passage and individual sentences lie. Read intelligently, audibly, clearly and in keeping with the passage's style and context. Practise dignified and unhurried movement to and from the ambo, waiting for silence before reading, and using eye-contact to engage the community.