I wouldn't say "fluent". I'd say "native English speaker." And I'd say it in the first line of the resume. Something like: Objective "To obtain a job teaching English in China where I can leverage my native English speaking skills." Similarly, make sure it is prominent on the cover letter if you have one.

The reason I say this is "fluent" tends to be used as a word to describe someone who learned English and obtained fluency.

I don't like the idea of changing your name for the resume. It decrease credibility when you do get the interview.

I wouldn't say "fluent". I'd say "native English speaker." And I'd say it in the first line of the resume. Something like: "Objective: To obtain a job teaching English in China where I can leverage my native English speaking skills." Similarly, make sure it is prominent on the cover letter if you have one.

The reason I say this is that "fluent" tends to be used as a word to describe someone who learned English and obtained fluency.

I don't like the idea of changing your name for the resume. It decreases credibility when you do get the interview.