Chomsky proposed the concepts of deep structure and surface structure. Deep structure refers to the abstract meaning of a sentence, while surface structure is the actual spoken or written form. A transformation function links deep structure and surface structure. For example, the deep structure of "Visiting doctors can be nuisance" could be either "We visit doctors. It can be nuisance" or "Doctors visit us. They can be nuisance". Deep structure represents thematic relations, with elements in the same syntactic position regardless of their position in surface structure.

1. DEEP STRUCTURE AND
SURFACE STRUCTURE
Executed by: Turganbekova A.,
Uglamova Sh., 315 group

2. Structure can be defined as a set of relations
on a linear sequence of units, such that criteria
can be defined for when the structure has been
completed.

3. One of the most important concepts
proposed by Chomsky is the concept
of surface and deep structure.

4. The surface structure is actually produced structure.
It refers to the sentence as it is pronounced or written.
The deep structure is the abstract structure that allows
the native speaker of a language to know what the
sentence means. It may then be said that the deep structure
expresses the semantic contents of a sentence, whereas the
surface structure of a sentence determines its phonetic
form.

5. Transformation functions as a link between deep
structure of sentences and their surface structures. For
example
Surface structure:
Visiting doctors can be nuisance.
Deep structure:
1.We visit doctors. It can be nuisance.
2. Doctors visit us. They can be nuisance.

6. Surface Structure Systems
Identifying words, reading fluently
Grapho-Phonic System
Letter/sound knowledge, alphabetic principle, phonemic awareness,
decoding
Lexical System
Visual word recognition based on frequent visual exposure to words
Visual memory for all words
Syntactic System
Understanding of language structures at the word, sentence, paragraph and
whole text level (usually auditory)

7. Deep Structure Systems:
Comprehend literally to get the gist of the story, comprehend deeply
and probe ideas
Semantic System
Understanding word meanings from literal to subtle, discuss and write
about experiences/associations related to words, precision and word choice
in writing
Schematic System
Constructing meaning at the whole text level; understanding themes, ideas
and concepts, storing and retrieving relevant knowledge, connecting the
new to the known
Pragmatic System
Multiple experiences with ideas we’ve read or learned; sharing and
applying meaning; constructing meaning through oral, written, artistic, and
dramatic means; writing for specific purposes and audiences; revising
thinking based on interactions with others; adopting the habits and mores of
readers and writers

8. It can be concluded that deep structure then is a
pure representation of thematic relations. Anything
which is interpreted as the subject or object of a
given predicate will be in the subject or object
position of that predicate at Deep structure no
matter where it is found at Surface structure.

9. Literature:
•http://awinlanguage.blogspot.com/2012/04/dee
p-structure-vs-surface-structure.html
•http://noamchomsky2011.blogspot.com/2011/1
1/deep-and-surface-structure-in-
chomskys.html