Syntax
Descriptive Grammar: Tries to describe what
people actually do. No one form is seen as being “better” than another.
·
Utterances
are grammatical if speakers of the language use them
·
Utterances
are ungrammatical (*) if speakers of a language do not and could not use
them
Generative Grammar: A type of descriptive grammar originally developed by Noam
Chomsky
·
A
finite set of rules generates an infinite number of sentences
·
The
sentences are all grammatical (no ungrammatical sentences produced)
Linear Order
Robin helped Chris with the homework.
Chris helped Robin with the homework.
*With the homework helped Chris Robin.
*Homework helped the Chris with Robin.
Phrase Structure Rules
Characterize generalizations about constituent structure and provide generative rules for sentence formation in a language
Represent the hierarchical structure of sentences produced by phrase structure rules
NP VP
Let’s come up with a set of phrase structure rules for the following English sentences:
She reads.
Children play
The children play.
The angry children fight.
S à NP VP
NP à N
NP à Pronoun
NP à Art N
NP à Art Adj N
*The Mary reads.
|
NP à Proper noun NP à Pronoun NP à N NP à Art N NP à Art Adj N |
Proper Noun NP à Pronoun
(Art) (Adj) N |
Mary reads a book quietly.
Mary reads a book.
The children fight.
The children fight loudly.
VP à V (NP) (Adv)
John goes to work daily.
John takes the kids to school often.
VP à V (NP) (PP) (Adv)
PP à Prep N
Mary reads in the comfy chair very regularly.
VP à V (NP) (PP) (AdvP)
PP à Prep NP
AdvP à (Adv) Adv
Mary thinks the children fight too much.
VP à V S |
VP à V (NP) (PP) (AdvP)V S |
I think we think John thinks Mary thinks the children fight too much.
Recursion
An infinitely long sentence generated by the
appropriate repetition (“recursion”) of a phrase structure rule.
·
A
formal means of accounting for the creativity of language
·
An
infinite set of sentences can be created by a finite set of rules
Another example of recursion:
The house on the street, in
the town, in the county, in the state, in the country, on the continent…
NP à (Art) N (PP)
Structural
Ambiguity
She hit the tourist with the
umbrella.
·
Two
meanings: ‘she’ has the umbrella or ‘the tourist’ has the umbrella.
·
The
two meanings have two different structures.
Transformations
|
Lexicon
+ PS
rules |
à |
Deep
Structure
|
à |
Transfor- mations
|
à |
Surface
Structure |
Some Example Transformations:
· Wh-movement
Mary reads what (DS) à What
does Mary read (SS)
·
Verb
Particle Movement
V à V (Part)
We make up the sentences (DS) à
We make the sentences up (SS)
·
Passive
Transformation
Mary read a book to the children (DS) à
The children were read a book by Mary (SS)