今天我们来说一下考研英语复习中的形态学，形态学主要是针对词汇这一概念进行研究的。形态学之前的一章是语音学，如此顺序正好是因为语音学中的语音奠定了词汇的基础，有了音才能构成词。关于形态学，最重要的两组概念是词素以及构词法。文都考研希望各位同学能够进行有效复习，长时间无效率都是无用功，自我感动切不可取。
考研英语复习：形态学
一、形态学的定义
二、Word Formation
(1) Derivation
Derivation shows the relation between roots and suffixes. In contrast with inflections, derivations can make the word class of the original word either changed or unchanged.
(2) Compound
Compounds refer to those words that consist of more than one lexical morpheme, or the way to join two separate words to produce a single form, such as ice-cream, sunrise, paper bag, railway, restroom, simple-minded, wedding-ring, etc.
(3) Invention
Since economic activities are the most important and dynamic in human life, many new lexical items come directly from the consumer items, their producers or their brand names.
发明法： 发明法又叫造词, 指直接用某一种商品的生产商或者商标的名字作为该类产品名称的造词方法, 例如,Kodak, Coke, nylon, granola 等, 它们都已经成为了代表新事物的新创词语。
(4) Blending
Blending is a relatively complex form of compounding, in which two words are blended by joining the initial part of the first word and the final part of the second word, or by joining the initial parts of the two words.
混成法:混成法是一种相对复杂的复合形式,由两个单词混合而成, 一般把个单词的开头部分和第二个单词的最后部分连接起来, 或者是把两个单词的开头部分连接起来
(5) Abbreviation / clipping
A new word is created by cutting the final part, cutting the initial part or cutting both the initial parts of the original words.
(6) Acronym
Acronym is made up from the first letters of the name of an organization, which has a heavily modified headword.
(7) Back-formation
Back-formation refers to an abnormal type of word-formation where a shorter word is derived by deleting an imaged affix from a longer form already in the language.
(6) Analogical creation
The principle of analogical creation can account for the co-existence of two forms, regular and irregular, in the conjugation of some English verbs.
(7) Class shift / Zero-derivation / conversion
By shifting word class one can change the meaning of a word from a concrete entity or notion to process or attribution.
(8) Borrowing
English in its development has managed to widen her vocabulary by borrowing words from other languages. Greek, Latin, French, Spanish, Arabic and other languages have all played an active role in this process.
三、Morpheme
Inflection is the manifestation of grammatical relationships through the addition of inflectional affixes, such as number, person, finiteness, aspect and case, which do not change the grammatical class of the stems to which they are attached.
屈折词素就是通过添加词缀体现语法关系，比如数、人称、有定性、体、格，不改变所附加词语的语法类。
派生词缀是加在词干上构成新词的词缀。这种构成新词的方法叫派生法，所构成的词叫派生词。
派生词缀又根据在单词中的位置分为前缀和后缀两类。前缀出现在单词的前边。前缀的主要功能是改变词干的语义，一般来说前缀不改变词的词性，如，当我们在friendly前边加上un-时，它的语义发生了改变，但是单词的词性不变。但是，也有一些例外情况，如：unearth, enlarge, prewar等。后缀加在词干的后边。后缀主要改变词性，也可以改变语义的功能。
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