You only have the type one word correct, and they make sure one word is readable so with some practice you can easily recognise which word is the key-word.
He isn't speaking of reCAPTCHA but google's nearly impossible to read captchas that take way too much time to decipher.
If you'd like to see it you can usually get it by putting in a bad password to a gmail account too many times (though I don't know if that has other consequences).
