How to pronounce “thames”(verb) in English

Actually he was raised in the area where the London Olympics took place a couple years ago, which was sort of a wasteland even then that Morris felt stillhad the beauty of the marshland, and the rivers, and the streams, and the little baby Thames there, forests, the old medieval fortress in Epping.He loved this. He saw this disappearing as the city just overflew, like overflowed its banks.