1.Give the Classification of morphemic segmentability.

Due to the morphemic structure of the word all English words fall into two large classes. They are so-called segmentable words, i.e. those ones allowing of segmentation into morphemes, e.g. agreement, information, fearless, quickly, door-handle, etc., and non-segmentable words, i.e. those ones not allowing of such segmentation, e.g. house, girl, woman, husband, etc.

The degree of morphemic segmentability is not the same for different words. Three types of morphemic segmentability of words are distinguished: complete, conditional and defective. Complete segmentability is characteristic of a great many words the morphemic structure of which is transparent enough, as their individual morphemes clearly stand out within the word lending themselves easily to isolation. There are, however, numerous words in the English vocabulary the morphemic structure of which is not so transparent and easy to establish. Conditional morphemic segmentability characterises words whose segmentation into the constituent morphemes is doubtful for semantic reasons. In words like retain, contain, detain or receive, deceive, conceive, perceive the sound-clusters [ri-], [di-], [кэn-] seem, on the one hand, to be singled out quite easily due to their recurrence in a number of words, on the other hand, they undoubtedly have nothing in common with the phonetically identical morphemes re-, de- as found in words like rewrite, re-organise, de-organise, decode. Defective morphemic segmentability is the property of words whose component morphemes seldom or never recur in other words. One of the component morphemes is a unique morpheme. A unique morpheme is isolated and understood as meaningful because the constituent morphemes display a more or less clear denotational meaning. There is no doubt that in the nouns streamlet, ringlet, leaflet, etc. the morpheme -let has the denotational meaning of diminutiveness and is combined with the morphemes stream-, ring-, leaf-, etc. each having a clear denotational meaning. The oppositions that the different types of morphemic segmentability are involved in hardly require any comments with the exception of complete and conditional segmentability versus defective segmentability.

2.Analyze the Lexical layers of the English Vocabulary.

With regard to the sphere of usage all the words fall into two groups:

1. Neutral words, which can be used in any sphere of communication, e.g., to go, to make, to do, thing;

2. Words with a limited sphere of communication, which can be used in learned or poetic texts, or in formal conversation. They are called stylistically coloured words. Stylistically coloured words are subdivided into two groups: formal (official) and informal (colloquial).

Formal vocabulary consists of terms, learned official vocabulary, poetic and archaic words. Informal vocabulary is made up of familiar colloquial words, slang, dialectisms, and vulgarisms. The boundaries between these layers are not clear cut. Words can travel from one layer into another, e.g., many terms have become part of neutral vocabulary, such as radio, television, football. And otherwise, many slang words became part of neutral vocabulary, e.g., donkey, to tackle, teenager.

Besides between neutral and stylistically coloured layer there may be words and expressions equally important for these layers, they occupy an intermediate position between them, e.g., fastidious, to fascinate. They are characterized as common literary and can be used either in colloquial conversation or in literary conversational style. Between neutral and informal vocabulary there is also a group of common colloquial vocabulary which stands between them. The criterion of the reference of the word to this or that layer is not absolutely reliable, but it is the only criterion existing now. A word may belong to the neutral layer if it sounds neutral in any kind of communication. In all other cases, it produces an unintentional comical effect, especially when placed in another layer or when it jars upon the ear in a different style. In this case it belongs to a stylistically coloured layer.