词汇学讲解前缀和后缀
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counter-charge • Re- react resist • Pro- pro-American Pro-communist
• 表示程度的前缀
• Super- superman superpower
• Under- underfeed underdevelopment
• Over- overcareful overdo
Methods of Wordformation
•
• English affixes can be divided into prefixes and suffixes.
• What is prefixes?
• What is suffixes?
• What are the most important productive prefixes and suffixes
表示方式的前缀
•： • Mis- mislead miscaculate • Mal- maltreat malnutrition • Co- cooperate cochairman
表示态度的前缀：
• Anti- anti-social anti-war • Counter- counter-revolution
respectively?
• Some of the most important productive prefixes are:
• 1. Prefixes with negative meaning: • un-, dis-, in-, im-, ir-, il-, de• 2. Prefixes with other meaning varieties
• Shakespear 24,000 • John Milton 16,000 • Churchill 90,000 • T.S. Eliot 100,000
Ways of Wordformation
• Derivation（派生法） derivative • Composition（复合法） compound • Conversion(转化法） • Abbreviation:（缩略法） • clipped word（截短词） • Initialism(首字母缩略词） • Acronym（首字母拼音词) • blend(拼缀词）
are: • Re-, mis-, anti-, ex, pre-, post-, fore-, self-,
super, sub-, inter-, trans-, ultra-,semi-, vice-, uni-, bi, multi- auto-,
• 英语的前缀和后缀在语法功能、语义、 以及与词根关系的密切程度上是不同的， 大多数后缀会改变词根的词性，大多数 前缀不影响词根的词性和其他语法范畴， 只是对词根的语义加以修饰或限制。从 这个意义上说，前缀的作用与副词相仿， 可以表示方式、态度、程度、时间、地 点、否定等概念。
• Sub- subway
• Under- underground
• 英语中只有三个前缀能决定词性： • En- en 使……处于什么状态 • Enslave embody endanger enrich • Enlarge ensure endear
• Be- befriend benumb belittle
• 表示时间的前缀
• Pre- prenatal • Post- post-war • Ex- exserviceman • Re- rebuild
•
表示地点的前缀
• Inter-
• Trans-Baidu Nhomakorabeatrans-Atlantic
• Super- superstructure(上层建筑）
• Over- overhead（在头顶上的）
• 2.Clockwise---in the direction in
• Desegregate,detrain,decentralize,degener ate.
• Deregulate– to remove from regulation • They contend that only long-term
deregulation of gas prices will encourage industry to drill new wells. • 2)depriving of • Deform, defrost,deice,dehydrate,demagnetize
• Becalm
• A- a-主要用来使动词或名词变为表语 性的形容词
• Asleep astray astir afire afoot(徒 步）
Some Examples for Unusual Prefix
• For example:
• Non-scientific means relating to fields other than science.
Two More Notes
• 1. In eastwards, moonwards, eastwards, northwards, the “s” will
be slipped in American English, but –
wards is very common in spoken AmE.
Classification of Vocabulary
• Active Vocabulary: • speaking vocabulary • writing vocabulary • Passive Vocabulary: • reading vocabulary • guess vocabulary
• Unscientific means not scientific( not used in scientific work,not showing scientific knowledge or familiarity with scientific methods.
• De-
• 1) reversing the action.
• 表示程度的前缀
• Super- superman superpower
• Under- underfeed underdevelopment
• Over- overcareful overdo
Methods of Wordformation
•
• English affixes can be divided into prefixes and suffixes.
• What is prefixes?
• What is suffixes?
• What are the most important productive prefixes and suffixes
表示方式的前缀
•： • Mis- mislead miscaculate • Mal- maltreat malnutrition • Co- cooperate cochairman
表示态度的前缀：
• Anti- anti-social anti-war • Counter- counter-revolution
respectively?
• Some of the most important productive prefixes are:
• 1. Prefixes with negative meaning: • un-, dis-, in-, im-, ir-, il-, de• 2. Prefixes with other meaning varieties
• Shakespear 24,000 • John Milton 16,000 • Churchill 90,000 • T.S. Eliot 100,000
Ways of Wordformation
• Derivation（派生法） derivative • Composition（复合法） compound • Conversion(转化法） • Abbreviation:（缩略法） • clipped word（截短词） • Initialism(首字母缩略词） • Acronym（首字母拼音词) • blend(拼缀词）
are: • Re-, mis-, anti-, ex, pre-, post-, fore-, self-,
super, sub-, inter-, trans-, ultra-,semi-, vice-, uni-, bi, multi- auto-,
• 英语的前缀和后缀在语法功能、语义、 以及与词根关系的密切程度上是不同的， 大多数后缀会改变词根的词性，大多数 前缀不影响词根的词性和其他语法范畴， 只是对词根的语义加以修饰或限制。从 这个意义上说，前缀的作用与副词相仿， 可以表示方式、态度、程度、时间、地 点、否定等概念。
• Sub- subway
• Under- underground
• 英语中只有三个前缀能决定词性： • En- en 使……处于什么状态 • Enslave embody endanger enrich • Enlarge ensure endear
• Be- befriend benumb belittle
• 表示时间的前缀
• Pre- prenatal • Post- post-war • Ex- exserviceman • Re- rebuild
•
表示地点的前缀
• Inter-
• Trans-Baidu Nhomakorabeatrans-Atlantic
• Super- superstructure(上层建筑）
• Over- overhead（在头顶上的）
• 2.Clockwise---in the direction in
• Desegregate,detrain,decentralize,degener ate.
• Deregulate– to remove from regulation • They contend that only long-term
deregulation of gas prices will encourage industry to drill new wells. • 2)depriving of • Deform, defrost,deice,dehydrate,demagnetize
• Becalm
• A- a-主要用来使动词或名词变为表语 性的形容词
• Asleep astray astir afire afoot(徒 步）
Some Examples for Unusual Prefix
• For example:
• Non-scientific means relating to fields other than science.
Two More Notes
• 1. In eastwards, moonwards, eastwards, northwards, the “s” will
be slipped in American English, but –
wards is very common in spoken AmE.
Classification of Vocabulary
• Active Vocabulary: • speaking vocabulary • writing vocabulary • Passive Vocabulary: • reading vocabulary • guess vocabulary
• Unscientific means not scientific( not used in scientific work,not showing scientific knowledge or familiarity with scientific methods.
• De-
• 1) reversing the action.