Question

__Summarizing a fiction passage__ is not as easy as you might think.
Underlined is the Summarizing a fiction passage..
What kind of phrase is this?

Only two __of his scripts__were accepted by the television producers.
Underlines is of his scripts.
What kind of phrase is this?

Answer 1

Here are the answers of the given questions above:
1. The underlined phrase "summarizing a fiction passage" is an example of a gerund phrase. It is a gerund phrase because it consists of a gerund, which is the word "summarizing" and with its complement. 
2. The underlined is "of his scripts". This is an example of a prepositional phrase. A prepositional phrase consists of a preposition and its complement. The preposition used in this phrase is "of".