Go to Learn English Teens, an excellent British Council self study page. Listen to 5 airport announcements and do the exercises.
Now Listen to five different conversations at the train station and do the activities. After doing the activities you can check your answers by downloading the script. But give it a try first.
Now go to elllo, a great site with loads of listening exercises. Listen to Simon discussing pros and cons of different ways of travelling. Do the exercises and think if you agree with him?