How to log EntityFramework-Statements e.g. to log4net

I don't understand what you mean with "EF-Statements" but log4net Tutorial[^] is IMHO a good starting point for log4net.

Reagarding your comment to SQL statements from EF:
With some quick serach I found those:
http://stackoverflow.com/questions/7901814/debugging-entity-framework-sql-statements[^]

http://blogs.msdn.com/b/jkowalski/archive/2009/06/11/tracing-and-caching-in-entity-framework-available-on-msdn-code-gallery.aspx[^]

http://stackoverflow.com/questions/4700323/how-to-get-the-sql-generated-by-the-entity-framework[^]