Before you start on a road trip, you usually look at map. Then you have abetter idea of the roads the places. You can plan your trip better and have fewerproblems.You can do this before you starts reading, too.Some parts of passage arelike a map. If you look at these parts, you can get a lot of information beforeyou read a passage. Then you can make guesses about the passage.When you look for information before you read,this is called previewing.When you make guesses about the passage, this is called making predictions.Previewing and making predictions help you read faster and understand better.The reason for this is simple: You know a little more about what you will read.You should always preview and make predictions before you read!