Question

In the following paragraph, are the words I have in capital letters adverbs?

A five-speed bike combines the WORST of a three-speed and ten-speed. The typical five-speed is built on the same heavy frame as the three-speed, OFTEN, has the five-speed gear cluster and changer bolted on in BACK. For two extr gears of quesionable value, you pay ALMOST as MUCH as you would for a low-priced ten-speed, but pedal AROUND as MUCH weight as you would on a three-speed.

Answer 1

As far as I'm concerned, all those that are capitalized seem to be adverbs.

Here's defintion if you need to clarify:

(An adverb can modify a verb, an adjective, another adverb, a phrase, or a clause. An adverb indicates manner, time, place, cause, or degree and answers questions such as "how," "when," "where," "how much".)

Answer 2

WORST -- noun (Note "the" before "worst." Object of the verb)
OFTEN -- adverb
BACK -- noun (object of preposition)
ALMOST -- adverb
MUCH -- noun
AROUND -- adverb
MUCH -- adjective

You can usually find the part of speech of a word in a dictionary.