前缀Prefix.ppt

prefix
前缀
July 2012
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What is the meaning of these prefix? Could you give some examples?
Anti, auto, bi, ex, mis, mono, multi, over, post, pro, re, semi, sub, under, fore, out , tri, super, pre, tele, trans
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Types of prefix
Negative prefix
Pejorative prefix
Prefix of degree or size
Prefix of orientation and attitude
Locative prefix
prefix of time and order
Number prefix
others
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Prefix: A. Negative prefix:
a-;dis; in; un; non;De-;
Pls give many examples
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Go over what we have learned last time

learning
to record a word?
you remember “crime” l have demonstrated to you all? Now I would like you to draw the bubbles.
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Negative prefix:a-;ab-;dis; in; un; non;de-
a-(greek origin)加上形容词构成形容词,表示缺乏某种性质,有“无”“非”“不”等意义。
amoral ( non-moral) 不道德的
asexual ( without sex)无性的
Acentric 无中心的
Acritical 不批评的
Asocial 不好交际的
Atypical 不合定型的
aseptic( free from bacteria)没有细菌的
asymmetry( lack of symmetry)不对称的
注:在元音字母或辅音字母h前,a变为an,例如:
anarchy :['ænəki] 无政府状态
anharmonic:[,ænhɑ:'mɔnik] 不协调的
anorexia[,ænə'reksiə] 厌食
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Ab-(greek origin)加形容词、名词、或词根构成的形容词或动词,表示“离开”、“相反”、“不”等意义
Absent 不在场的
Absorb 吸去
Abuse 滥用,误用
Abstract 抽象的
Abnormal 反常的
Abaxial :[æb'æksiəl] 离开轴心的
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dis-:加在名词、形容词、动词上,表示否定或相反的意义
disease, dishonest, disloyal, disjoint, disobey, disorder, dislike, dissatisfied, disable;ord不一致; disallow;disapprove; disarm; discolour使变色;使褪色;玷污,
在f前dis-变成dif-,如:
diffluence 分流
diffident 不自信的['difidənt]
differ 不同,相异
diffract [di'frækt]分解
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in-:加在形容词及其派生的名词、副词上、表示“无”“不”“非”等意义
plete, inconsistence, incorrect, insane, indefinite, insecure;inactive,
immortal, imbalance,
illegal, illogical,
irrelevant, irregularly,irrational,irrelative,
Ig-也可以加在动词词根或其他词根上,表示否定意义
Ignoble不体面地,ignorance无知, ignore不理,不顾
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Exercise: Proper, consistent, responsible
It would be __________ of me not to advise pany to give up the project.
An exchange of views which contains contradictions is
Joking is ________ behavior for such a serious occasion.
irresp