Is the Noble-born background supposed to grant the Speak Language skills (High Gothic, Low Gothic) and Literacy skills as trained skills or simply as Basic untrained skills?

In Dark Heresy the Noble-born background provides these skills as trained skills, not untrained.

It seems odd to me that the noble character would only have a passing ability to speak High Gothic, as this should be their standard language they hve been raised and trained with.

 It's one of those odd quirks about the core rulebook's careers and origins. I always just tell my players that any origin that doesn't cost experience and gives untrained basic skills also gives them Talented for that skill. 

Kraken said:

But without homebrewing, they are definitely intended to only be Basic Untrained Skills even though, no, it doesn't really make that much sense that someone only has a passing understanding of the language they have spoken their whole life.

seems to me a noble born would still speak low gothic, and hear high gothic around the galas enough for a basic understanding, but can still be one to skip out on formal training without hindering their life too much

All the noble born characters in our group (well, both of them) got speak high gothic as a trained skill at character creation; I can't remember the exact wording of the book right now, but it made much more sense for us to treat it as a trained skill - it is not much of an advantage, and makes more sense.

David.