I 'aced' a consulting interview some time back and a key element of the interview was communicating my desire to learn a second language. I spoke it (at the level of a seasoned tourist), but it was probably worse than your English. Part of the interview was in my second language, but it was mostly in my first language.
- You DO need to show that you are keen to do something that you cannot do, but want to do, at an interview. You also have to be very careful about how you phrase your responses at interview, so prepare well (not only the responses to questions, but the questions to ask them etc.).
- 'Trade' with a future employer. 'Fair trade is no crime' was an adage I was kindly told in the mid-1990's. It has some real resonance in a world that now has soft business skill amnesia (loss of memory) some days. If you find an organisation that trades with regions of the world that speak your language, then offer to 'trade' your language skills for the chance to work in their business culture, on top of the existing contract negotiations.
- Do NOT suggest a trade that is grossly unfair to you (i.e. a significant pay cut to be insulted by a failing, racist UK manager each day). However if you explain it as some form of 'trade' you can communicate your understanding of a two-way process.
- We do not know much about you, so it is very difficult to judge your chances in the jobs market. You should spell check the CV carefully though.
-Another possibility would be to look for a similar job to consulting, but not actually consulting, so you can change to a consulting job later on.
I would read the top-consulting literature carefully before an interview. My message was only intended to address your specific questions.