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一、Explain-the-fllowing-terms

1． Minimal pairs

The two words which are identical in every way except for one sound segment that occurs 【答案】

in the same place in the string. For example，the English words bear and pear constitute a minimal pair as they differ in meaning and in their initial phonemes /b/ and /p/.

2． Paradigmatic relations

【答案】 Paradigmatic relation , Saussure originally called associative , is a relation holding between elements replaceable with each other at a particular place in a structure , or between one element present and the others absent.

3． Concordance

【答案】 The computer has the ability to search for a particular word , sequence of words , or perhaps even a part of speech in a text. The computer can also retrieve all examples of a particular word. It can also calculate the number of occurrences of a certain word so that information on the frequency of the word may be gathered. We may also be interested in sorting the data in some way—for example, alphabetically on words occurring in the immediate context of the word. This is usually referred to as concordance.

4． cohort model

【答案】 The cohort model is a supposed doctrine dealing with the spoken word recognition postulated by Marslen-Wilson and Welsh in 1990. It is suggested that the first few phonemes of a spoken word activate a set or cohort of word candidates that are consistent with the input. These candidates compete with one another for activation. As more acoustic input is analyzed , candidates that are no longer consistent with the input drop out of the set. This process continues until only one word candidate matches the input- the best fitting word may be chosen if no single candidate is a clear winner.

5． Categorization

Categorization is the process of classifying our experiences into different categories based 【答案】

on commonalities and differences. There are three levels in categories: the basic level，the superordinate level ，and the subordinate level.

二、Short-answer-questions

6． Linguists have taken an internal and/or external focus to the study of language acquisition. What is the difference between the two?

【答案】 The difference between internal and/or external focus to the study of language acquisition.

（1） The internal focus seeks to account for speakers9 internalized , underlying knowledge of language. The

external focus emphasizes language use, including the functions of language which are realized in learners production at different stages of development.

（2）According to the above difference, the linguist Noam Chomsky claims that human beings are biologically programmed for language and that the language develops in the child just as other biological functions such as walking. Originally Chomsky referred to this innate ability as Language Acquisition Device ，also known as LAD. Later Chomsky prefers this innate endowment as Universal Grammar （UG ） and holds that if children are pre-equipped with UG, then what they have to learn is the ways in which their own language makes use of these principles and the variations on those principles which may exist in the particular language they are learning.

The interaetionist view holds that language develops as a result of the complex interplay between the human characteristics of the child and the environment in which the child develops. Integrated with the innatist view, the interaetionist further claims that the modified language which is suitable for the child’s capability is crucial in his language acquisition.

7． What is the distinction between inflectional affixes and derivational affixes?

【答案】 The distinction between inflectional morphemes and derivational morphemes could be illustrated in the following four aspects.

Inflectional affixes very often only add a minute or delicate grammatical meaning to the stem, for instance , those inflectional affixes in words such as toys, walks, John's, etc. Therefore, they serve to produce different forms of a single word. In contrast , derivational affixes often change the lexical meaning , e.g. cite, citation; generate, generation.

Inflectional affixes do not change the word class of the word they attach to，such as flower, flowers ; whereas derivational affixes might or might not, such as the relation between small and smallness for the former, and that between brother and brotherhood for the latter.

Very often inflectional affixes are conditioned by non-semantic linguistic factors outside the word they attach to but within the phrase or sentence. Whereas, derivational affixes are more often based on simple meaning distinctions.

In English, inflectional affixes are mostly suffixes, which are always word final. But derivational affixes can be prefixes or suffixes.

8． Why do people take duality as one of the important design features of human language? Can you tell us what language will be if it has no such design feature?

【答案】 Duality makes our language productive. A large number of different units can be formed out of a small number of elements——for instance, tens of thousands of words out of a small set of sounds. And out of the huge number of words, there can be astronomical number of possible sentences and phrases, which in turn can combine to form unlimited number of texts. Most animal communication systems do not have this design feature of human language.

If language had no such design feature , then it would be like animal communicational system which consists of only a number of basic sounds and this would be highly limited. Then we would not be able to produce a very large number of sound combinations （e.g. words ） , which are distinct in meaning. In other words, the number of messages one can send would be restricted to the number of basic sounds.

9． What is the difference between mistakes and errors?

【答案】 Errors are defined as unintentionally deviant from the target language and not self-corrigible by the learner and suggest failure in competence, while mistakes as either intentionally or unintentionally deviant forms and self-corrigible suggest failure in performance.