Free and bound morphemes
From these examples, we can make a broad distinction between two types of morphemes.
There are freemorphemes, that is, morphemes that can stand by themselves as
single words, for example, open and tour. There are also bound morphemes, which are
those forms that cannot normally stand alone and are typically attached to another form,
exemplified as re-, -ist, -ed, -s. These forms were described in Chapter 5 as affixes. So, we
can say that all affixes (prefixes and suffixes) in English are bound morphemes. The free
morphemes can generally be identified as the set of separate English word forms such as
basic nouns, adjectives, verbs, etc. When they are used with bound morphemes
attached, the basic word forms are technically known as stems. For example:
undressed carelessness
un- dress -ed care -less -ness
prefix stem suffix stem suffix suffix
(bound) (free) (bound) (free) (bound) (bound)
We should note that this type of description is a partial simplification of the morphological
facts of English. There are a number of English words in which the element
treated as the stem is not, in fact, a free morpheme. In words such as receive, reduce and
repeat, we can identify the bound morpheme re- at the beginning, but the elements
-ceive, -duce and -peat are not separate word forms and hence cannot be free morphemes.
These types of forms are sometimes described as “bound stems” to keep them
distinct from “free stems” such as dress and care.
Lexical and functional morphemes
What we have described as free morphemes fall into two categories. The first category
is that set of ordinary nouns, adjectives and verbs that we think of as the words that
carry the “content” of the messages we convey. These free morphemes are called
lexical morphemes and some examples are: girl, man, house, tiger, sad, long, yellow,
sincere, open, look, follow, break. We can add new lexical morphemes to the language
rather easily, so they are treated as an “open” class of words.
Other types of free morphemes are called functional morphemes. Examples are
and, but, when, because, on, near, above, in, the, that, it, them. This set consists largely
of the functional words in the language such as conjunctions, prepositions, articles and
pronouns. Because we almost never add new functional morphemes to the language,
they are described as a “closed” class of words.
المادة المعروضة اعلاه هي مدخل الى المحاضرة المرفوعة بواسطة استاذ(ة) المادة . وقد تبدو لك غير متكاملة . حيث يضع استاذ المادة في بعض الاحيان فقط الجزء الاول من المحاضرة من اجل الاطلاع على ما ستقوم بتحميله لاحقا . في نظام التعليم الالكتروني نوفر هذه الخدمة لكي نبقيك على اطلاع حول محتوى الملف الذي ستقوم بتحميله .
ارجوع الى لوحة التحكم
|