To reduce the weak points brought about by the bottom-up teaching method， this research applied monitor strategy in the listening classes， in order to guide learners to focus on the whole content instead of individual words inside it and to extend the sight of monitoring． Specifically， it is to summarize learners' result of monitoring ( part that couldn't be understood) in the form of questions． This research aims at the capability of learners proposing questions in range of broad monitor， so as to discuss if there is any change in learners' questions before and after the training and how does it change． The result indicates that through the in-the-class training， fewer questions focused on individual words are asked， and the questions asked have moved from fractional monitoring range to broad monitoring range， which means the range of monitoring of learners has been extended．