One of my existing clients whose son I tutor has asked me to do some English speaking tuition with his elder daughter aged 18. She has just arrived from China to live in England and speaks next to no English. (I don't know any Chinese either). This is to 'tide her over' until she goes to college to study English in September. As I already work with the family, I'd like to help, but this isn't my forte - I usually teach primary-age English and Maths. Could anyone advise me on where to start with teaching English as a second language, or any good website or book resources? I would really appreciate it. Thanks in advance.