Grammar
Tenses
Present
Present Simple
Present Continuous
Present Perfect
Present Perfect Continuous
Past
Past Continuous
Past Perfect
Past Perfect Continuous
Past Simple
Future
Future Simple
Future Continuous
Future Perfect
Future Perfect Continuous
Passive and Active
Parts Of Speech
Nouns
Countable and uncountable nouns
Verbal nouns
Singular and Plural nouns
Proper nouns
Nouns gender
Nouns definition
Concrete nouns
Abstract nouns
Common nouns
Collective nouns
Definition Of Nouns
Verbs
Stative and dynamic verbs
Finite and nonfinite verbs
To be verbs
Transitive and intransitive verbs
Auxiliary verbs
Modal verbs
Regular and irregular verbs
Action verbs
Adverbs
Relative adverbs
Interrogative adverbs
Adverbs of time
Adverbs of place
Adverbs of reason
Adverbs of quantity
Adverbs of manner
Adverbs of frequency
Adverbs of affirmation
Adjectives
Quantitative adjective
Proper adjective
Possessive adjective
Numeral adjective
Interrogative adjective
Distributive adjective
Descriptive adjective
Demonstrative adjective
Pronouns
Subject pronoun
Relative pronoun
Reflexive pronoun
Reciprocal pronoun
Possessive pronoun
Personal pronoun
Interrogative pronoun
Indefinite pronoun
Emphatic pronoun
Distributive pronoun
Demonstrative pronoun
Pre Position
Preposition by function
Time preposition
Reason preposition
Possession preposition
Place preposition
Phrases preposition
Origin preposition
Measure preposition
Direction preposition
Contrast preposition
Agent preposition
Preposition by construction
Simple preposition
Phrase preposition
Double preposition
Compound preposition
Conjunctions
Subordinating conjunction
Correlative conjunction
Coordinating conjunction
Conjunctive adverbs
Interjections
Express calling interjection
Grammar Rules
Preference
Requests and offers
wishes
Be used to
Some and any
Could have done
Describing people
Giving advices
Possession
Comparative and superlative
Giving Reason
Making Suggestions
Apologizing
Forming questions
Since and for
Directions
Obligation
Adverbials
invitation
Articles
Imaginary condition
Zero conditional
First conditional
Second conditional
Third conditional
Reported speech
Linguistics
Phonetics
Phonology
Semantics
Pragmatics
Linguistics fields
Syntax
Morphology
Semantics
pragmatics
History
Writing
Grammar
Phonetics and Phonology
Semiotics
Reading Comprehension
Elementary
Intermediate
Advanced
Teaching Methods
Teaching Strategies
critical period
المؤلف:
David Crystal
المصدر:
A dictionary of linguistics and phonetics
الجزء والصفحة:
123-3
2023-08-02
1265
critical period
In child language ACQUISITION, the hypothesis that there is a particular time span during which a first LANGUAGE can be most easily acquired. The notion of a critical period is well supported in several areas of child development (e.g. with reference to the development of the mechanism of swallowing), and was felt to be also relevant to the emergence of language. It was argued that the critical period for language ends at puberty, because by this time the brain has become specialized in its functions, and no longer has the adaptability found at earlier stages of biological development. The hypothesis has proved to be extremely difficult to test, and remains controversial. The study of language-deprived children (reared in the wild or by animals – ‘feral children’ – or kept isolated from society – ‘attic children’) provides some support; but studies of adult language learning indicate that the brain is more plastic in adulthood than was once believed and that its language functions are more widely distributed. Adults moreover have certain cognitive abilities which facilitate language acquisition, such as increased motivation and greater METALINGUISTIC awareness.
الاكثر قراءة في Morphology
اخر الاخبار
اخبار العتبة العباسية المقدسة

الآخبار الصحية
