When reading the students tend to pronounce every word separately and read slowly with fluency. In order to make them less dependent of the text I have this activity: after reading and practicing and memorizing a dialog from the book I put some keywords on the board and ask the students to repeat the coversations just following them. They were allowed to use their own word but they could not change the main topic and the sequence of phrases. This way I`m sure they know what they are talking about and the conversation becames much more natural. Try it!