Another good source of activities to help you improve your listening skills:
The Special English Web site is an excellent tool to practice and improve your American English.
You will find radio scripts and the matching audio file of the text as it was delivered on the radio. Find a report that interests you. You can find scripts by topic or by the name of the radio program.
Read along and listen to the audio report. At the same time you will learn new information about a variety of subjects from issues in the news to American history.