Thanks for your reply but I've already tried that and it hasn't worked. When I highlight the words and press command-esc to words are no longer highlighted and it won't read the words. It seems to only happen on the Kindle application. Do you have any other ideas of how I can resolve it.
Hope this tip from "Cult of Mac" helps.
Press the Reader button in the url bar for easy reading.
Note the sentence "Click and drag............"