I am not native speaker so I have difficulties in pronunciation some
words especially the letter "I" I dont know when it sound "ai" or "i".
COuld anyone who give me some tips ?

At the Merriam-Webster online dictionary there are audio files that
demonstrate how to pronounce most words:

http://www.m-w.com/

Just click on the red speaker icon. Keep in mind that it is an
American dictionary, not a British one.

Hope this helps,

Vladimir

I doubt if there is any rule.

Certainly, I have never been taught any.

Of course, being a native English speaker, one simply learns from conversations.

It must be difficult for any non-native speaker to work out the
pronunciation except from a phonetic dictionary.

Good luck!

You will turn up lots of websites if you simply do a G**gle search on
the words "English pronunciation."  I saw a website earlier today that
had done an amazing job of cataloging rules for pronunciation of
English, but I can't remember what I was looking for at the time and
can't find it now.

Is there a list of words in particular that you would like help with?

Archae0pteryx

Why do Londoners pronounce ISLAND as I-LAND and ISLINGTON as IS-LINGTON ???

Why do Londoners pronounce ISLAND as I-LAND and ISLINGTON as IS-LINGTON ???

I-LL guess because EVERYBODY pronounces them thataway.

IS-N'T it?