Section 4 is the most difficult part of the listening test for the following reasons:
- There is no break in the middle of the 10 questions
- You hear one speaker giving a fairly long talk or lecture
- The speaker will speak quite quickly
- A wider range of vocabulary is used, compared to the other sections
Here's my tip: Don't worry too much about this section. Spend most of your time practising sections 1, 2 and 3.
Try to get as many points from the other three sections as you can, and this will allow you to lose points in section 4. Remember that you can make 10 mistakes and still get a band 7.