How to change the font of KDE(qt) applications in gnome

My laptop installs Ubuntu 10.04, the default desktop environment is Gnome. I found that the fonts of the KDE(qt) applications such as kile etc. are ugly.

Here is how we can change the fonts of qt applications:

(1) sudo apt-get install systemsettings kdebase-workspace-bin

(2) Enter the command "systemsettings" in the terminal, and change the fonts in "Appearance"->"Fonts".