Phrase Structure Rules and Xbar Theory

Which phrase structure rule represents a basic sentence?

• VP → NP S

• S → NP VP

• NP → Det N

• PP → P NP

In the phrase "The cat sleeps," what does "The cat" represent?

• Verb Phrase (VP)

• Prepositional Phrase (PP)

• Noun Phrase (NP)

• Complementizer Phrase (CP)

According to PSRs, what is the rule for a noun phrase (NP)?

• NP → Det N

• NP → V NP

• NP → P NP

• NP → NP VP

Answer explanation

The correct rule for a noun phrase (NP) according to PSRs is NP → Det N, which indicates that a noun phrase consists of a determiner followed by a noun. The other options do not correctly define a noun phrase.

What does a VP typically consist of?

• NP and PP

• V and NP

• Det and AdjP

• N and PP

In X-Bar Theory, what is the head of a phrase?

• The specifier

• The main lexical category

• The complement

• The adjunct

Answer explanation

In X-Bar Theory, the head of a phrase is the main lexical category, which determines the type of phrase (e.g., noun, verb). The specifier, complement, and adjunct serve different roles but do not define the phrase's core identity.

How does X-Bar theory represent a phrase structure?

• NP → Det N

• XP → X (Complement)

• VP → NP VP

• PP → Det P

Answer explanation

X-Bar theory uses the notation XP → X (Complement) to show that a phrase (XP) consists of a head (X) and its complement. This structure captures the hierarchical organization of phrases in syntax.

What is the "bar level" (X′) in X-Bar Theory?

• The head

• The intermediate projection

• The complement

• The specifier

Answer explanation

In X-Bar Theory, the 'bar level' (X′) refers to the intermediate projection that sits between the head and its complements or specifiers. It is crucial for understanding the hierarchical structure of phrases.

What is the complement in the sentence "She baked a cake"?

• She

• baked

• a cake

• the sentence has no complement

In the sentence "The big dog barked," which part is the specifier in X-Bar theory?

• The

• big

• The big

• barked

Answer explanation

In X-Bar theory, the specifier is the phrase that provides additional information about the noun. In "The big dog barked," "The big" functions as the specifier, describing which dog is being referred to.

Which of the following is an example of recursion in PSRs?

• S → NP VP

• VP → V NP PP

• NP → Det N

• PP → P NP

Answer explanation

The correct choice, 'VP → V NP PP', demonstrates recursion because the VP can contain another NP and PP, allowing for nested structures. This is a hallmark of recursive definitions in phrase structure rules.