Posted by rfvv on Tuesday, August 30, 2011 at 11:11pm.

(Thank you for your help in many ways. Would you look at the sentence? Is 'the same' in apposition with 'about 20 degrees C'? )

e.g. The temperature in cave houses is always the same, about 20 degrees C.

English - Writeacher, Tuesday, August 30, 2011 at 11:47pm
Yes, it is. :)

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If they are in apposition with each other, what is the part of speech of 'the same'? Is' the same' an adjective phrase or a noun phrase? 'about 20 degrees Celsius' is a noun phrase? Then is 'the same' also a noun phrase? Or an adverbial phrase?

"the same" in that sentence is in the position of predicate adjective. Its appositive ("about 20 degrees") is a prepositional phrase. Since prep phrases can act as adjectives, this makes sense.

In the sentence, "The temperature in cave houses is always the same, about 20 degrees C," the phrase "the same" is functioning as an adjective phrase. It is describing the state or quality of the temperature being constant.

On the other hand, "about 20 degrees C" is a noun phrase because it is referring to a specific measurement of temperature.

So, to clarify, "the same" is an adjective phrase and "about 20 degrees C" is a noun phrase.