Unit 2 Classification

Unit 2 Classification of MaterialsSolid materials have been conveniently grouped into three basic classifications: metals, ceramics, and polymers. This scheme is based primarily on chemical makeup and atomic structure, and most materials fall into one distinct grouping or another, although there are some intermediates. In addition, there are three other groups of important engineering materials —composites, semiconductors, and biomaterials.译文：译文：固体材料被便利的分为三个基本的类型：金属，陶瓷和聚合物。

固体材料被便利的分为三个基本的类型：金属，陶瓷和聚合物。

固体材料被便利的分为三个基本的类型：金属，陶瓷和聚合物。

这个分类是首先基于这个分类是首先基于化学组成和原子结构来分的，化学组成和原子结构来分的，大多数材料落在明显的一个类别里面，大多数材料落在明显的一个类别里面，大多数材料落在明显的一个类别里面，尽管有许多中间品。

尽管有许多中间品。

除此之外，此之外， 有三类其他重要的工程材料－复合材料，半导体材料和生物材料。

有三类其他重要的工程材料－复合材料，半导体材料和生物材料。

Composites consist of combinations of two or more different materials, whereas semiconductors are utilized because of their unusual electrical characteristics; biomaterials are implanted into the human body. A brief explanation of the material types and representative characteristics is offered next.译文：复合材料由两种或者两种以上不同的材料组成，然而半导体由于它们非同寻常的电学性质而得到使用；生物材料被移植进入人类的身体中。

ContentPART 1 Introduction to Materials Science ＆Engineering 1 Unit 1 Materials Science and Engineering 1 Unit 2 Classification of Materials 9 Unit 3 Properties of Materials 17 Unit 4 Materials Science and Engineering: What does the Future Hold? 25 Part ⅡMETALLIC MATERLALS AND ALLOYS33 Unit 5 An Introduction to Metallic Materials 33 Unit 6 Metal Manufacturing Methods 47 Unit 7 Structure of Metallic Materials 57 Unit 8 Metal-Matrix Composites 68 Part ⅢCeramics 81 Unit 9 Introduction to Ceramics 81 Unit 10 Ceramic Structures —Crystalline and Noncrystalline 88 Unit 11 Ceramic Processing Methods 97 Unit 12 Advanced ceramic materials –Functional Ceramics 105 PARTⅣNANOMATERIALS 112 Unit 13 Introduction to Nanostructured Materials 112 Unit14 Preparation of Nanomaterials 117 Unit 15 Recent Scientific Advances 126 Unit 16 The Future of Nanostructure Science and Technology 130 Part ⅤPOLYMERS 136Unit17 A Brief Review in the Development of Synthetic Polymers 136 Unit18 Polymer synthesis: Polyethylene synthesis 146 Unit19 Polymer synthesis: Nylon synthesis 154 Unit 20 Processing and Properties Polymer Materials 165 PART VI POLYMERIC COMPOSITES 172 Unit21 Introduction to Polymeric Composite Materials 172 Unit22 Composition, Structure and Morphology of Polymeric Composites 178 Unit23 Manufacture of Polymer Composites 185 Unit24 Epoxy Resin Composites 191 Part 7 Biomaterial 196 Unit 25 Introduction to Biomaterials 196 Unit 26 Biocompatibility 205 Unit 27 Polymers as Biomaterials 213 Unit 28 Future of Biomaterials 224 PARTⅧMaterials and Environment 237 Unit29 Environmental Pollution & Control Related Materials 237 Unit30 Bio-degradable Polymer Materials 241 Unit 31 Environmental Friendly Inorganic Materials 248 Unit 32 A Perspective on the Future: Challenges and Opportunities 256 附录一科技英语构词法263 附录二科技英语语法及翻译简介269附录三：聚合物英缩写、全名、中文名对照表280附录四：练习题参考答案284PART 1 Introduction to Materials Science ＆EngineeringUnit 1Materials Science and EngineeringHistorical PerspectiveMaterials are probably more deep-seated in our culture than most of usrealize. Transportation, housing, clothing, communication, recreation, and food production —virtually every segment of our everyday lives is influenced to one degree or another by materials. Historically, the development and advancement of societies have been intimately tied to the members’ ability to produce and manipulate materi- als to fill their needs. In fact, early deep-seated根深蒂固的, 深层的civilizations have been designated by the level of their materials development (Stone Age, Bronze Age, Iron Age).The earliest humans had access to only a very limited number of materials, those that occur naturally: stone, wood, clay, skins, and so on. With time they discovered techniques for producing materials that had propertiessuperior to those of the natural ones; these new materials included pottery and various metals. Furthermore, it was discovered that the properties of a material could be altered by heat treatments and by the addition of other substances. At this point, materials utilization was totally a selection process that involved deciding from a given, rather limited set of materials the one best suited for an application by virtue of its characteristics.①It was not until relatively recent times that scientists came to understand the relationships between the structural elements of materials and their properties. This knowledge, acquired over approximately the past 100 years, has empowered them to fashion, to a large degree, the characteristics of materials. Thus, tens of thousands of different materials have evolved with rather specialized charac- teristics that meet the needs of our modern and complex society; these include metals, plastics, glasses, and fibers.The development of many technologies that make our existence so comfortable has been intimately associated with the accessibility of suitable materials. An advancement in the understanding of a material type is often the forerunner to the stepwise progression of a technology. For example, pottery // 陶器structural elements结构成分；property //.性能automobiles would not have been possibl- e without the availability of inexpensive steel or some other comparable substitute. In our contemporary era, sophisticated electronic devices rely on components that are made from what are called semiconducting materials.Materials Science and EngineeringThe discipline of materials science involves investigating the relationships that exist between the structures and properties of materials. In contrast, materials engineering is, on the basis of these structure–property correlations, designing or engineering the structure of a material to produce a predetermined set of properties.“Structure’’is at this point a nebulous term that deserves some explanation. In brief, the structure of a material usually relates to the arrangement of its internal components. Subatomic structure involves electrons within the individual atoms and interactions with their nuclei. On an atomic level, structure encompasses the organization of atoms or molecules relative to one another. The next larger structural realm, which contains large groups of atoms that are normally agglomerated together, is termed ‘‘microscopic,’’meaning that which is subject to direct observation using some type of microscope. Finally, structural elements that may be viewed with the naked eye are termed ‘‘macroscopic.’’The notion of ‘‘property’’ deserves elaboration. While in service use, all materials are exposed to external stimuli that evoke some type of response. stepwise//逐步的sophisticated//精制的，复杂的；semiconducting materials 半导体材料nebulous//含糊的，有歧义的subatomic//亚原子的microscopic//For example, a specimen subjected to forces will experience deformation; or a polished metal surface will reflect light. Property is a material trait in terms of the kind and magnitude of response to a specific imposed stimulus. Generally, definitions of properties are made independent of material shape and size.Virtually all important properties of solid materials may be grouped into six different categories: mechanical, electrical, thermal, magnetic, optical, and deteriorative. For each there is a characteristic type of stimulus capable of provoking different responses. Mechanical properties relate deformation to an applied load or force; examples include elastic modulus and strength. For electrical properties, such as electrical conductivity and dielectric constant, the stimulus is an electric field. The thermal behavior of solids can be represented in terms of heat capacity and thermal conductivity. Magnetic properties demonstrate the response of a material to the application of a magnetic field. For optical properties, the stimulus is electro- magnetic or light radiation; index of refraction and reflectivity are representative optical properties. Finally, deteriorative characteristics indicate the chemical reactivity of materials.In addition to structure and properties, two other important components are involved in the science and engineering of materials, viz. ‘‘processing’’and ‘‘performance.’’With regard to the relationships of these four components, the structure of a material will depend on how it is processed. 微观的// 宏观的deformation// 变形deteriorative//破坏（老化的）elastic modulus 弹性模量strength //强度；dielectric constant介电常数；heat capacity 热容量refraction。

Unit 12 Culture Shock 词汇篇1__________________________________________________________________________________ __________________________________________________________________________________1、掌握第十二单元第一课及第二课的重点单词||，短语及句型||。

2、灵活运用第十二单元第一课及第二课的重点单词||，短语及句型||。

1.owe vt. 欠（情||，债等）归纳拓展：①owe sb. an apology / explanation 得向某人道歉/解释②owe sth. to sb. 欠某人债||，欠某人情③owe…to 把…归功于If I have improved in any way||，I owe it all to you. 如果说我有一些进步||，这全归功于你||。

④owing to 因为||，由于2. apology n. 道歉||，认错归纳拓展：①offer/make an apology to sb. for (doing) sth. 因（做）某事向某人道歉We should like to offer our apologies for the delay to your fight. 今天航班误点||，敬请原谅||。

②accept/refuse an/one’s apology 接受/拒绝某人的道歉||。

③apologize to sb. for (doing) sth. 因（做）某事向某人道歉||。

We apologize for the late departure of this flight. 本航班延误离境||，谨致歉意||。

④apologize to sb. + that从句向某人道歉…3. absorb vt. 理解||，掌握||，吸收（光||，热等）||，吞并常用结构：①be absorbed into 被吸收到…||，被并到…The cream is easily absorbed into the skin. 这种乳霜皮肤易吸收||。

Unit2跨文化交际commucation across cultureUnit 2Culture and CommunicationWhat is culture?“文化”是一个广泛的概念，它的内涵很丰富。

在英语中,“culture”一词是一个难以解释的词，它最早来源于古法语cultura, 拉丁语colere和德语“kultur”，原指土地的开垦及植物的栽培；后来随着人类生存空间和生存方式的改变逐渐扩延，转而意指人的身体、精神，特别是指艺术和道德能力和天赋的培养；进而泛指人类社会在征服自然和自我发展中创造的物质财富和精神财富，包括饮食、器具、舟车、房屋、社会组织、政治制度、风俗习惯、语言、学术思想等。

More than 500 definitions up to the present(Refer to p. 40 for some of the well-known ones)First definition: E. B. Tylor (1871) in Primitive Culture: “that complex whole which includes knowledge, belief, art, morals, law, custom and any other capabilities and habits acquired by man as a mem ber of a society.”文化是一种复合的整体，它包括知识、信仰、艺术、道德、法律、习俗以及人们作为社会成员而获得的能力与习惯Broadly speaking, it means the total way of life of a people, including the patterns of belief, customs, objects, institutions, techniques, andlanguage.In a narrow sense, it refers to local or specific practice, beliefs or customs, and language. Define culture from different perspectives From Intellectual PerspectiveFrom Anthropologic PerspectiveFrom Social PerspectiveFrom Psychological PerspectiveFrom Intercultural Communication PerspectiveFrom Intellectual PerspectiveAccording to the Concise Oxford Dictionary, culture is “the arts and other manifestations of human intellectual achievement regarded collectively".It refers to intellectual perspective, such as music, art, exhibition, dance, etc. When you talk about Picasso, Beethoven, etc., you are talking about culture.From Anthropologic PerspectiveCulture is "the customs, civilizations, and achievements of a particular time or people." This is an anthropologist's definition.From Social PerspectiveCulture is what a society does and thinks.Culture covers everything of a society.From Psychological PerspectiveCulture is the collective programming of the mind which distinguishes the members of one category of people from another.From Intercultural Communication PerspectiveCulture is a learned set of shared interpretations about beliefs, values, and norms, which affect the behavior of a relatively large group of people.Culture Is LearnedWe learn culture from __parents__, ____teachers____ friends ___,_other familycommucation across culturemembers_____,_ and even strangers who are part of the culture_.Culture Is a Set of Shared InterpretationsAll communications take place by means of symbolsCulture Involves Beliefs, Values, and Normsa. BeliefsBeliefs refer to the basic understanding of a group of people about what the world is like or what is true or false.b. ValuesValues involve what a culture regarded as good or bad, right or wrong, fair or unfair, just or unjust, beautiful or ugly, clean or dirty, valuable or worthless, appropriate or inappropriate, and kind or cruel.c. NormsNorms refer to rules for appropriate behavior, which provide theexpectations people have of one another and of othersNorms in the army: SalutesNorms in different fields：Culture Affects BehaviorsCulture Involves Large Groups of PeopleThree Things Culture Doesp46-48 (self-study)Culture ranks what is importantCulture furnishes attitudesCulture dictates how to behaveCulture ranks what is importantDifferent cultures have their own value orientation and what is important in one culture may be virtually meaningless to another.Culture ranks what is important. In other words, cultures teach values or priorities.Values underlie attitudes. They also shape beliefs.Within a culture, values may be of greater or lesser importance.Culture furnishes attitudesAn attitude is learned, and it is a tendency to respond the same way to the same object or situation or idea.Attitudes can change, although change can be difficult. Attitudes are based on beliefs as well as values.Beliefs are convictions or certainties based on subjective and often personal ideas rather than on proof or facts. Belief systems or religions are powerful sources of values and attitudes in cultures.Culture dictates how to behaveBehavior comes directly from the attitudes about how significant something is --- how it is valued.Attitudes vary according to how important something is reckoned to be (value).Values drive actions.1.3 Classification of Culturecommucation across cultureOne of the most popular classification of culture:high culture: philosophy, literature, fine arts, music, religion etc.popular culture: customs and habits, rites and rituals, ways of living (housing, dressing, eating and drinking) and all interpersonal behavior.deep culture: the conception of beauty, definition of sin, notions of modesty, ordering of time, etc.Cultural iceberg: p. 44-50Conscious or subconscious?Deep culture―the out-of-awareness part of a cultureNine-tenth of an iceberg / culture is out of sight.Those that are above the “water” :what to eat and how to eat it;how to keep healthy;how to raise children;how to participate in ceremonies;how to introduce and greet people;Those that are below the “water” :what is good or bad;what is right or wrong;what is beautiful or ugly;what is clean or dirty;how is an individual related to others;Generally speaking, differences in those things that are usually outside of our consciousawareness, i.e. the so-called “ deep culture”, are more likely to cause problems in intercultural communication. The reason is that this part of culture is internalized in people’s mind and thus is hard to perceived.SummaryCulture is not anything that people in a group are born with, but something they learn either by being taught or by growing up in it.Different cultures have different ways of eating, drinking, dressing, finding shelter, marrying and dealing with death.Our own culture seems natural to us while other cultures may think itfunny, strange or even disgusting. However, this has nothing to do with right or wrong.It follows that there is no “best” culture suitable for all p eople in the world. In comparing cultures, we can hardly say which culture is definitely better than the other, for each culture can be appropriate to certain group of people living in a particular geographic and social environment.A culture should therefore be judged and interpreted in its own context. Without considering the environment in which people of a particular culture live, it would be impossible for us to really understand and appreciate what is significant and meaningful in that culture.Perhaps, if we could examine the manners of different nations with impartiality, we should find no people so rude, nor any so polite.2. Instinctive Behavior andCultural Behaviorcommucation across cultureReading : p. 41Questions:---Do you know Maslow’s theory?---Do human beings realize all these needs at the same time?---Do people all over the world share the same basic needs described by Maslow? ---Do people realize these needs in the same ways?---Is culture conscious or subconscious?2.1 Instinctive behavior―innate and universal2.2 Cultural behavior―learned and transmitted from generation to generation through the use of symbolsPeople in different cultures satisfy these needs in different ways.Examples:Different ways of eating p.43;Difference in treating visitors. p. 38 (Warm Up)Difference in ending the meals. p. 59 (Group Work)Case AnalysisCase 5 p. 60Difference in taking offersCase 7 p.62Difference in the view of giftsCase 8 p.62-63Difference in food for banquet, table mannersAnalysisIn China, it is often not polite to accept a first offer and Heping was being modest, polite and well-behaved and had every intention of accepting the beer at the second or third offer. But he did not know the North American rules which firmly say that you do not pull alcoholicbeverages on anyone. A person may not drink for religious reasons, he may be a reformed alcoholic, or he may be allergic.Whatever the reason, you do not insist on offering alcohol. So the Americans didn’t make a second offer of beer to Heping, who probably thought North Americans not hospitable. However, there are always individual differences between people from even the same culture. Probably the young Chinese nurse had known something about the American culture and was just trying to behave like an American when she was in an American family.Case 7 p.62What do you think of Keiko insisting on giving valuable gifts to her college friends?How would you feel if Keiko presented you with a gift for your help?AnalysisKeiko insists on giving valuable gifts to her college friends, because in countries like Japan, exchanging gifts is a strongly rooted social tradition. Should you receive a gift, and don’t have one to offer in return, you will probably create a crisis. If not as serious as a crisis, one who doesn’t offer a gift in return may be considered rude or impolite.Therefore, in Japan, gifts are a symbolic way to show appreciation, respect, gratitude and further relationship.commucation across cultureKeiko obviously has taken those used items from Mary, Ed and Marion as gifts, for sheprobably doesn’t know that Americans frequently do nate their used household items to church or to the community.Mary, Ed and Marion would never consider those used household items given to Keiko as gifts. No wonder they felt very uncomfortable when they received valuable gifts in return. Case 8 p.62-63Why did the girl consider the menu created by her mother a strange one?What cultural differences can you find in this case?AnalysisWhen the Chinese girl fell in love with an American boy at that time, it seems that shepreferred to celebrate Christmas in the American way, for she wanted very much to appear the same as other American girls. She did not like to see her boyfriend disappointed at the “shabby” Chinese Christmas. That’s why she cried when she found out her parents had invited the minister’s family over for the Christmas Eve dinner. She thought the menu for the Christmas meal created by her mother a strange one because there were no roast turkey and sweet potatoes but only Chinese food.How could she notice then the foods chosen by her mother were allher favorites?From this case, we can find a lot of differences between the Chinese and Western cultures in what is appropriate food for a banquet, what are good table manners, and how one should behave to be hospitable. However, one should never feel shame just because one’s culture is different from others’. As Amy’s mother told her, you must be proud to be different, and your only shame is to have shame.3.1 Definition of Communication---A behavior-affecting process in which one person (a source) intentionally encodes andtransmits a message through a channel to an intended audience (receivers) in order to induce a particular attitude or behavior.---Transmission and reception of meaning through the manipulation of symbols, language and context.---A process involving the exchange of messages and the creation of meaning.(p.58)It involves a sender who encodes a message and a receiver who decodes the message.3.3 Types of Communication(1)Interpersonal Communication (Dyad)Intrapersonal Communication (Within)Mass CommunicationGroup CommunicationPublic CommunicationBusiness CommunicationIntracultural CommunicationShared communication between members of the same cultural group /communication between people from the same culturecommucation across cultureIntercultural Communicationcommunication between people from different culturesIntercultural Communication…Requires an understand ing of …Own cultureCultures of other groupsParent/Dominant culture (e.g. based on race or ethnicity)Co-cultures (e.g. based on gender, religion, age)Intercultural Communication…Requires an understanding of …..Knowledge systemBeliefsValuesCustomsBehaviorsIntercultural / Cross-cultural CommunicationAlthough the term cross-cultural is often used as a synonym for intercultural, it traditionally implies a comparison of some phenomena across cultures.For example, if we examine communication between two Chinese or between two Americans, we are looking at intra-cultural communication.If we observe communication between a Chinese and an American, in contrast, we are looking at intercultural communication.If we compare the speech act of apology in the Chinese culture and in the American culture, for example, we are making a cross-cultural comparison.If we look at how an American or a Chinese is making an apology when communicating with each other, in contrast, we are looking at intercultural communication.Cross-Cultural CommunicationInvolves highlighting similarities and differences across cultural groups to promotecommunicationInternational CommunicationInteractions among people from different nations. Certainly, communication among people from different countries is likely to be intercultural communication, but that is not always true.3.3 Types of Communication(2)human communication (人类交际）animal communication (动物交际）human-animal communication （人类与动物的交际）human-machine communication（人机交际）machine-to-machine communication（机器交际）3.4 Media of CommunicationFace-to-FaceTelephoneBroadcast MediaVerbalNon-verbalcommucation across cultureWhich other media of communication can you identify?3.6 The Communication ProcessMatching Task p.57One more example:1. A: Can you tell me the time?B: Well, the milkman has come.(No, I don’t know the exact time, but I can tell you that the milkman has come so that you may be able to tell what the approximate time it is now.)Case 6 p.61 ( assignment)Case AnalysisCase 6 p.61Why did the Chinese mother-in-law decide to leave the very afternoon?What was wrong with Litz asking her husband how long his mother was going to stay just two days after her mother-in-law’s arrival?AnalysisWhen a speaker says something to a hearer, there are at least three kinds of meanings invol ved: utterance meaning, the speaker’s meaning and the hearer’s meaning.In the dialogue, when Litz asked how long her mother-in-law was going to stay, she meant that if she knew how long she was going to stay in Finland, she would be able to make proper arrangements for her, such as taking her out to do some sightseeing. However, hermother-in-law took Litz’s question to mean “ Litz does not want me to stay for long”. From the Chinese point of view, it seems inappropriate for Litz to ask such a question just two days after her mother-in-law’s arrival. If she has to ask the question, it would be better to ask some time later and she should not let her mother-in-law hear it.Another CaseSituation:A Chinese student had just arrived at the States. One day, when he was reading in his room, he heard someone shouting outside: “ Watch out!” So he went to the window and stretched out his head and tried to find out what’s going on outside. Just then, his head was right poured by the water from abo ve…Question:What are the three meanings of “ Watch out” in communication?Key to the question:1. Utterance meaning: Be careful!2. Speaker’s meaning: Don’t pull out !3. Hearer’s meaning:Something is happening! Look out!3.9 Characteristics of Communication p.68-73DynamicSymbolicInteractiveInterpretiveContextualcommucation across cultureCommunication is a dynamic processCommunication is an ongoing, ever changing activity. It is not fixed.“You can’t stand in the same stream twice.”When people communicate, they are constantly affected by each other’s messages and as a consequence, people undergo continual change.Each time one is influenced, one changes in some way and people never stay frozen when in communication.Once a word or an action is employed, it cannot be retracted.Communication is symbolicCommunication involves the use of symbols.A symbol is a word, action, or object that strands for or presents a unit of meanings. Meaning, in turn, is a perception, thought, or feeling that a person experiences and might want to communicate to others.People’s behaviors are frequently interpreted symbolically, as an external representation of feelings, emotions, and internal states.Communication is interactive/transactionalCommunication must take place between people.When two or more people communicate, their unique backgrounds and experiences serve as a backdrop for the communication interaction.Communicators are simultaneously sending and receiving messages at every instant that they are involved in conversations.There are no such entities as pure senders or pure receivers.Communication is systemic/contextualCommunication does not occur in isolation or in a vacuum, but ratheris part of a larger system.Setting and environment help determine the words and actions you generate and the meanings you give the symbols produced by other people.Dress, language, topic selection, and the like are all adapted to context.People do not act the same way in every environment.Communication is contextual/systemicAll communication takes place within a setting or situation called a context.By context, we mean the place where people meet, the social purpose for being together, and the nature of the relationship.Thus, the context includes the physical, social, and interpersonal settings within which messages are exchanged.The physical context includes the actual location of the interactants: indoors or outdoors, crowded or quiet, public or private, close together or far apart, warm or cold, bright or dark. The social context refers to the widely shared expectations people have about the kinds of interactions that normally should occur given different kinds of social events.The interpersonal context refers to the expectations about the behaviors of others as a result of differences in the relationships between them. (examples---p69-70)commucation across cultureCommunication is interpretiveWhenever people communicate, they must interpret the symbolic behaviors of others and assign significance to some of those behaviors in order to create a meaningful account of the other’s actions.There is no direct mind-to-mind contact between people, you cannot access the thoughts and feelings of other human beings but can only infer what they are experiencing.Communication is complexAlthough all cultures use symbols to share their realities, the specific realities and the symbols employed are often quite different.People are both alike and different.Cultural, as well as individual, differences keep people apart.Members of different cultures look differently at the world around them.A successful intercultural communicator appreciates similarities and accepts differences.4. Elements of Communication p.50-56ContextParticipantsMessagesChannelsNoiseFeedbackphysical settingthe formality of the conference roomthe seating arrangementslightingthe time of daythe distance between communicatorshistorical contextprevious communication eventspsychological contextthe manner of perceiving themselves and otherscultural contextcommunication normsplay the roles of senders and receivers:senders form messagesC encoders;receivers process the messages and react to them―decoders variables affecting participants:---relationships: familiar or unfamiliar---gender: males or females---culture: from the same culture or from different cultures meaningscommucation across culturethe meanings may not be transferred successfullysymbolswords chosenfacial expressions, gesturestone of voiceencoding and decodingmessage encoded may not be decoded as intendedculture and nonverbal factors---sound, sight, smell, taste, touch---the nature of the channel selected affects the way a message will be processed---the impact of a message changes as the channel used to transmit it changes---the more channels used, the more successful the communication will be---any stimulus that interferes with the sharing of meaningexternal noisestimuli in the surrounding that distract attentioninternal noiseinterfering thoughts and feelings inside a communicatorsemantic noiseinappropriate choice of words---noise can function as a communication barrierverbal responsenonverbal responseserves useful functions for both senders and receivers: it provides senders with the opportunity to measure how they are coming across, and it provides receivers with the opportunity to exert some influence over the communication process.C-- cultural variables that undermine the communication of intended meaningExamples of Semantic Noise一次性用品：A Time Sex Thing一次性筷子：One Sex Chopsticks平时禁止入内：No entry on peace time小心溺水：Careful Drowning童子鸡：Chicken without sexual life麻婆豆腐：Bean curd made by a pockmarked woman贵阳：Expensive Sun干果区：Fuck the fruit areaAssignments1. Find a misleading sign in Meizhou and point out what’s wrong and give a correct one.2. Further Reading I : Understanding Culture p.64-67。

现代英语词汇学概论复习资料1~7现代英语词汇学概论最强版复习资料Chapter 2 Morphological Structure of English Words英语词汇的形态结构⏹ 2.1 Morphemes词素/语素/ 形位⏹ 2.2 Classification of Morphemes词素分类2.1.1 The Definition of “Morphemes” 词素的概念Morpheme: The smallest meaningful linguistic unit of language，not divisible or analyzable into smaller forms.➢smallest: not divisible into smaller forms➢meaningful: carry meaning (lexical and grammatical)e.g. denationalizationdenationalization= de + nation + al + iz + ation➢ A morpheme is a two-facet language unit: sound and meaning➢ A morpheme is not identical with a syllable，either，since the latter has nothing to do with meaning.Allomorphs语素变体、词素变体:➢various shapes or forms of a morpheme➢do not differ in meaning or function➢conditioned by position or adjoining sounds➢Eg. -sbook→books /-s/pig→pigs /-z/horse → horses /-iz/➢Eg. im-，in-，i- perfect, responsible, logical, flexible perfect → imperfectresponsible→ irresponsiblelogical → illogicalflexible → inflexible➢Eg. –tion，-sioninvent →inventiondescribe →descriptionjustify →justificationmodernize→modernizationexpand →expansiondecide →decisionomit →omission2.2 Classification of Morphemes词素分类●Free Morphemes and Bound Morphemes自由词素与粘着词素Free morpheme:➢one that can be uttered alone with meaning➢ A free morpheme is a word.E.g. green, red, write, faithBound morpheme:➢cannot stand by itself as a complete utterance➢appear with at least one other morpheme, free or boundE.g. receive re-ceiveQ：自由词素与粘着词素如何组词？E.g. green, greenhouse, greenness, disagreeable, receive, encyclopedia➢green (free)➢green-house (free + free)➢green-ness (free + bound)➢re-ceive (bound + bound)➢en-cyclo-pedia (bound + bound + bound)* A free morpheme is a word.●Roots and Affixes词根与词缀Root 词根: The basic unchangeable part of a word, and it conveys the main lexical meaning of the word.➢ 1. Free root (自由词根):A word consist of one free root (or one morpheme)is a simple word.Free roots provide the English language with a basis for the formation of new words.➢ 2. Bound root（粘着词根）:roots derived from foreign sources ,esp. from Greek and Latin, belong to the class of bound morphemes, such as tian and cieveEg.1)work, workable, worker, worked, working (free)2) contain, detain, retaintain= tenere (L) = to hold (bound)3) conceive, deceive, receiveceive= capere (L) = to take (bound)4) revive, vitamin, vital, vivacious, vividvit, viv = life / to live (bound)➢Vital:necessary in order to stay alive-al: pertaining to = have a connection withvital = having a connection with life Vivacious:adj. apprec. full of life and high spirits; lively-ous: full ofvivacous = full of life (energy)Vivid:producing sharp clear pictures in the mind; lifelike-id: having a certain qualityvivid = having a certain quality of lifeAffixes缀: a collective term for the type of formative that can be used when added to another morpheme.➢ 1. Inflectional affixes(屈折词缀): serves to express such meanings as plurality, tense, and the comparative or superlative degree.特点：1.not to form a new word with new lexical meaning2. having only particular grammatical meaning3. only to be affixed to words of the same word-class (not to change the word-class)➢ E.g. Plural marker: pens, oxen, feetGenitive case: Jame’sVerbal endings: works, working, worked, bought, saidComparative and superlative degree: slower, slowest➢ 2. Derivational affixes（派生词缀）:to be added to another morpheme to derive a new word 特点：1. to derive a new word2. having a specific lexical meaning (some also affective meaning)3. some to be attached to words of different word classes➢Eg. Having pejorative or derogatory meaning-ism means“doctrine or point of view ”==socialismPro-means“on the side of ”==pro-com-munist⏹Mini-carmean-nessModern-izeSocial-ism Pro-communist De-codeDe-valueWash-able⏹mis-mal-absorptionpseudo-democratic hire-ling weak-ling child-ish派生词缀分类（derivational morphemes）: Prefixes and suffixes1) By linguistic origin:➢Native affixes➢Foreign affixes2) By productivity:➢Productive/living affixes➢Unproductive/dead affixes➢Summary➢ 2.Morphological Structure of English Words英语词汇的形态➢ 2.1 Morphemes词素➢ 1.The Definition of “Morphemes”词素的概念➢ 2. Allomorphs 词素变体➢ 2.2 Classification of Morphemes 词素分类➢ 1. Free Morphemes and Bound Morphemes➢自由词素与粘着词素➢ 2. Roots and Affixes 词根与词缀➢free root and bound root自由词根与粘着词根➢inflectional affixes and derivational affixes屈折词缀与派生词缀➢➢。