How to avoid duplicated (textual) content penalization

I wanna make few, very simple, dating affiliate websites. I wanna increase their value with blog and writing few articles.
Can I avoid duplicated content google penalization somehow?

I wanna put same (or little changed) textual content in blogs. Can I avoid penalization by registering domains to different countries (for example: datingsitereview.us, datingsitereview.au, etc.) ?

Content is duplicated if you have a website registered in US or AU or China...
Google algorithm checks automatically if there is the same content, everywhere on the world.
Check copyscape example: they find duplicate content in every domain, on every country.

i have a question: does copied content on a sub page affect ranking of the root domain?

Use unique content everywhere on your money site.