Towards an extensible context ontology for ambient intelligence
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Human nature,as a complex and multifaceted concept,has been a subject of philosophical debate for centuries.The idea that human nature is inherently evil is a perspective that can be explored from various angles,including historical,cultural,and psychological viewpoints.Here are some points that can be included in an essay discussing this concept:1.Historical Context:The notion of human nature being evil can be traced back to ancient philosophies.For instance,in Chinese philosophy,Xunzi argued that people are born with selfish desires,which must be controlled through education and ritual.2.Cultural Influences:Different cultures have different views on human nature.For example,the Christian doctrine of original sin suggests that humans are born with a sinful nature due to the disobedience of Adam and Eve.3.Psychological Perspectives:From a psychological standpoint,theories such as Freuds psychoanalytic theory propose that humans are driven by instincts,including the death drive,which can be interpreted as an inherent tendency towards destructiveness.4.Biological Determinism:Some argue that our genetic makeup predisposes us to certain behaviors.For example,the selfish gene theory by Richard Dawkins suggests that genes promote their own survival,often at the expense of others,which could be seen as a form of inherent evil.5.Social Evidence:There are numerous examples from history and current events that seem to support the idea of inherent evil in human nature.Wars,violence,and exploitation are prevalent throughout human history,suggesting a capacity for cruelty and selfishness.6.Counterarguments:Its important to also consider the counterarguments to this view. Some philosophers,like孟子Mencius in Chinese philosophy,argue that humans are born good and that evil behaviors are learned or developed due to environmental factors.7.The Role of Environment:The environment in which a person grows up can significantly influence their behavior.Poverty,lack of education,and exposure to violence can exacerbate negative tendencies,suggesting that evil may be a product of circumstances rather than inherent nature.8.Personal Responsibility:An individuals choices and actions also play a crucial role in determining their moral compass.Even if one believes in the inherent evil of human nature,personal responsibility and the ability to make ethical decisions are essential.9.The Importance of Moral Education:If human nature is indeed inherently evil,the importance of moral education and societal structures that promote good behavior becomes paramount.This includes the role of family,schools,and laws in shaping individuals.10.Conclusion:In conclusion,while there are arguments to be made for the inherent evil in human nature,it is also essential to consider the complexity of human behavior and the influence of external factors.The debate is ongoing,and perhaps the truth lies somewhere in between,acknowledging both the potential for evil and the capacity for good within each individual.When writing an essay on this topic,its crucial to provide a balanced view,exploring both sides of the argument and supporting your points with evidence from various disciplines.。
Aboutness 所言之事Absolute frequency 绝对频数Alignment (of parallel texts) (平行或对应)语料的对齐Alphanumeric 字母数字类的Annotate 标注(动词)Annotation 标注(名词)Annotation scheme 标注方案ANSI/American National Standards Institute 美国国家标准学会ASCII/American Standard Code for Information Exchange 美国信息交换标准码Associate (of keywords) (主题词的)联想词AWL/Academic word list 学术词表Balanced corpus 平衡语料库Base list 底表、基础词表Bigram 二元组、二元序列、二元结构Bi-hapax 两次词Bilingual corpus 双语语料库CA/Contrastive Analysis 对比分析Case-sensitive 大小写敏感、区分大小写Chi-square (χ2) test 卡方检验Chunk 词块CIA/Contrastive Interlanguage Analysis 中介语对比分析CLAWS/Constituent Likelihood Automatic Word-tagging System CLAWS词性赋码系统Clean text policy 干净文本原则Cluster 词簇、词丛Colligation 类联接、类连接、类联结Collocate n./v. 搭配词;搭配Collocability 搭配强度、搭配力Collocation 搭配、词语搭配Collocational strength 搭配强度Collocational framework/frame 搭配框架Comparable corpora 类比语料库、可比语料库ConcGram 同现词列、框合结构Concordance (line) 索引(行)Concordance plot (索引)词图Concordancer 索引工具Concordancing 索引生成、索引分析Context 语境、上下文Context word 语境词Contingency table 连列表、联列表、列连表、列联表Co-occurrence/Co-occurring 共现Corpora 语料库(复数)Corpus Linguistics 语料库语言学Corpus 语料库Corpus-based 基于语料库的Corpus-driven 语料库驱动的Corpus-informed 语料库指导的、参考了语料库的Co-select/Co-selection/Co-selectiveness 共选(机制)Co-text 共文DDL/Data Driven Learning 数据驱动学习Diachronic corpus 历时语料库Discourse 话语、语篇Discourse prosody 话语韵律Documentation 备检文件、文检报告EAGLES/Expert Advisory Groups on Language Engineering Standards EAGLES文本规格Empirical Linguistics 实证语言学Empiricism 经验主义Encoding 字符编码Error-tagging 错误标注、错误赋码Extended unit of meaning 扩展意义单位File-based search/concordancing 批量检索Formulaic sequence 程式化序列Frequency 频数、频率General (purpose) corpus 通用语料库Granularity 颗粒度Hapax legomenon/hapax 一次词Header/Text head 文本头、头标、头文件HMM/Hidden Markov Model 隐马尔科夫模型Idiom Principle 习语原则Index/Indexing (建)索引In-line annotation 文内标注、行内标注Key keyword 关键主题词Keyness 主题性、关键性Keyword 主题词KWIC/Key Word in Context 语境中的关键词、语境共现(方式)Learner corpus 学习者语料库Lemma 词目、原形词、词元Lemma list 词形还原对应表Lemmata 词目、原形词、词元(复数)Lemmatization 词形还原、词元化Lemmatizer 词形还原(词元化)工具Lexical bundle 词束Lexical density 词汇密度Lexical item 词项、词语项目Lexical priming 词汇触发理论Lexical richness 词汇丰富度Lexico-grammar/Lexical grammar 词汇语法Lexis 词语、词项LL/Log likelihood (ratio) 对数似然比、对数似然率Longitudinal/Developmental corpus 跟踪语料库、发展语料库、历时语料库Machine-readable 机读的Markup 标记、置标MDA/Multi-dimensional approach 多维度分析法Metadata 元信息Meta-metadata 元元信息MF/MD (Multi-feature/Multi-dimensional) approach 多特征/多维度分析法Mini-text 微型文本Misuse 误用Monitor corpus (动态)监察语料库Monolingual corpus 单语语料库Multilingual corpus 多语语料库Multimodal corpus 多模态语料库MWU/Multiword unit 多词单位MWE/Multiword expression 多词单位MI/Mutual information 互信息、互现信息N-gram N元组、N元序列、N元结构、N元词、多词序列NLP/Natural Language Processing 自然语言处理Node 节点(词)Normalization 标准化Normalized frequency 标准化频率、标称频率、归一频率Observed corpus 观察语料库Ontology 知识本体、本体Open Choice Principle 开放选择原则Overuse 超用、过多使用、使用过度、过度使用Paradigmatic 纵聚合(关系)的Parallel corpus 平行语料库、对应语料库Parole linguistics 言语语言学Parsed corpus 句法标注的语料库Parser 句法分析器Parsing 句法分析Pattern/patterning 型式Pattern grammar 型式语法Pedagogic corpus 教学语料库Phraseology 短语、短语学POSgram 赋码序列、码串POS tagging/Part-of-Speech tagging 词性赋码、词性标注、词性附码POS tagger 词性赋码器、词性赋码工具Prefab 预制语块Probabilistic (基于)概率的、概率性的、盖然的Probability 概率Rationalism 理性主义Raw text/Raw corpus 生文本(语料)Reference corpus 参照语料库Regex/RE/RegExp/Regular Expressions 正则表达式Register variation 语域变异Relative frequency 相对频率Representative/Representativeness 代表性(的)Rule-based 基于规则的Sample n./v. 样本;取样、采样、抽样Sampling 取样、采样、抽样Search term 检索项Search word 检索词Segmentation 切分、分词Semantic preference 语义倾向Semantic prosody 语义韵SGML/Standard Generalized Markup Language 标准通用标记语言Skipgram 跨词序列、跨词结构Span 跨距Special purpose corpus 专用语料库、专门用途语料库、专题语料库Specialized corpus 专用语料库Standardized TTR/Standardized type-token ratio 标准化类符/形符比、标准化类/形比、标准化型次比Stand-off annotation 分离式标注Stop list 停用词表、过滤词表Stop word 停用词、过滤词Synchronic corpus 共时语料库Syntagmatic 横组合(关系)的Tag 标记、码、标注码Tagger 赋码器、赋码工具、标注工具Tagging 赋码、标注、附码Tag sequence 赋码序列、码串Tagset 赋码集、码集Text 文本TEI/Text Encoding Initiative 文本编码计划The Lexical Approach 词汇中心教学法The Lexical Syllabus 词汇大纲Token 形符、词次Token definition 形符界定、单词界定Tokenization 分词Tokenizer 分词工具Transcription 转写Translational corpus 翻译语料库Treebank 树库Trigram 三元组、三元序列、三元结构T-score T值Type 类符、词型TTR/Type-token ratio 类符/形符比、类/形比、型次比Underuse 少用、使用不足Unicode 通用码Unit of meaning 意义单位WaC/Web as Corpus 网络语料库Wildcard 通配符Word definition 单词界定Word form 词形Word family 词族Word list 词表XML/EXtensible Markup Language 可扩展标记语言Zipf's Law 齐夫定律Z-score Z值。
在操场上丢了钥匙英语作文None is a Powerful Prompt for Exploration and DiscoveryThe word "none" is deceptively simple, yet it holds a multitude of meanings and implications that can serve as a powerful prompt for exploration and discovery. As a word that conveys a sense of absence, emptiness, or lack, "none" invites the writer to delve into realms of the abstract, the philosophical, and the deeply personal.One interpretation of "none" is the absence of any specific topic or subject matter. This open-ended prompt allows the writer to venture into uncharted territories of thought, unencumbered by the constraints of a predetermined theme. It presents an opportunity to engage in a process of self-discovery, to explore the boundaries of one's own creativity and imagination. In this context, the essay on "none" could take on a highly introspective and reflective tone, as the writer grapples with the complexities of their own existence and the nature of reality itself.Alternatively, "none" could be seen as a statement of defiance or arejection of the conventional. The writer might choose to challenge the status quo, to question the accepted norms, and to venture into uncharted territories of thought and expression. This approach could lead to a thought-provoking and unconventional essay that encourages the reader to think beyond the confines of their own experiences. The writer might explore the concept of nonconformity, the power of dissent, or the transformative potential of radical ideas.Another perspective on "none" could be the exploration of the concept of nothingness itself. What does it mean to have nothing? What are the implications of the absence of something? How does the human mind grapple with the idea of nothingness, and what insights can be gained from this exploration? These are the kinds of questions that a writer could delve into when confronted with the prompt of "none." The essay might explore the philosophical and scientific theories of the nature of the universe, the role of emptiness in various spiritual and religious traditions, or the psychological and emotional impact of experiencing a profound sense of absence.Furthermore, "none" could be seen as a statement of neutrality or impartiality. In this context, the writer could choose to explore the concept of objectivity, the ability to step back and observe the world without the biases and preconceptions that often shape our perceptions. This could lead to a nuanced and balanced exploration of complex issues, where the writer seeks to present multipleperspectives and to encourage the reader to think critically and independently. The essay might examine the role of objectivity in fields such as journalism, science, or political discourse, or it might explore the challenges and limitations of achieving true impartiality in a world that is inherently subjective.Regardless of the specific interpretation or approach taken, the essay on "none" presents a unique opportunity for the writer to engage in a process of self-discovery and intellectual exploration. By delving into the depths of this seemingly simple word, the writer can uncover layers of meaning, challenge their own assumptions, and ultimately craft a thought-provoking and engaging piece of writing.In exploring the concept of "none," the writer might draw upon a wide range of sources and disciplines, from philosophy and literature to psychology and the natural sciences. They might incorporate personal anecdotes, historical examples, or cutting-edge research to support their arguments and to deepen the reader's understanding of the topic. The essay might also incorporate creative elements, such as metaphors, analogies, or thought experiments, to help the reader grasp the elusive and abstract nature of "none."One potential approach to the essay could be to structure it around a series of questions or themes that the writer explores in depth. For example, the essay might begin by examining the various dictionarydefinitions and connotations of the word "none," before delving into the philosophical and existential implications of nothingness. The writer might then explore the role of "none" in various cultural, religious, and artistic contexts, drawing connections between the concept of absence and the human experience of loss, uncertainty, or transcendence.Alternatively, the essay could take a more narrative or personal approach, with the writer using their own experiences and reflections as a starting point for exploring the broader significance of "none." The writer might share a pivotal moment or realization in their life where the concept of "none" played a central role, and then use this as a springboard for a deeper exploration of the topic.Regardless of the specific structure or approach, the essay on "none" presents a unique opportunity for the writer to engage in a process of intellectual and creative exploration. By embracing the absence of constraints and the freedom to delve into the unknown, the writer can craft a work that is both deeply meaningful and highly engaging for the reader.In conclusion, the essay on "none" is a blank canvas, a space for the writer to unleash their creativity, their curiosity, and their intellectual prowess. It is a prompt that invites the writer to venture into the unknown, to embrace the absence of constraints, and to craft a workthat is both meaningful and memorable. Whether the writer chooses to explore the philosophical implications of nothingness, the unconventional boundaries of expression, or the pursuit of objectivity, the essay on "none" presents a unique and compelling opportunity for the writer to leave a lasting impression on the reader.。
介绍传统文化英语作文步骤Delving into the Depths of Cultural Heritage: A Guide to Crafting an Essay on Traditional Culture The vibrant tapestry of human civilization is woven with threads of tradition, each strand unique and imbued with the spirit of its people. Exploring these traditions, understanding their origins and significance, forms the heart of an essay on traditional culture. But where do we begin? How do we capture the essence of something so deeply ingrained, so intricately tied to the soul of a nation or community? Firstly, pinpoint the cultural element you wish to explore. Is it a vibrant festival like the Chinese New Year, bursting with the cacophony (meaning: a harsh, discordant mixture of sounds; origin: Greek) of firecrackers and the mellifluous (meaning: sweet or musical; pleasing to hear; origin: Latin) melodies of folk songs? Or perhaps a time-honored craft, like the delicate art of Japanese origami, where paper is transformed into intricate cranes and vibrant flowers, each fold imbued with centuries of tradition? Thepossibilities are as diverse as the cultures themselves. Next, delve into the historical roots. Unravel the origins of the tradition, tracing its path through the annals of time. Was it born from a practical need, like the Inuit practice of building igloos for shelter in the harsh Arctic environment? Or did it emerge from a spiritual belief, like the Hindu tradition of Diwali, the festival of lights symbolizing the triumph of good over evil? Understanding the historical context adds depth and meaning to your essay, allowing you to appreciate the tradition's evolution and enduring relevance. Now, illuminate the cultural significance. How does this tradition bind the community together? Does it instill values of respect for elders, like the Korean custom of bowing as a greeting? Does it celebrate the harvest and the bounty of nature, like the American tradition of Thanksgiving? Explore the role the tradition plays in shaping the identity of the people, fostering a sense of belonging and shared heritage. Weave in personal anecdotes or observations to add a touch of intimacy. Perhaps you have a cherished memory of participating in a traditional ceremony, the sights, sounds, and emotions vividly etched in your mind. Maybe you've witnessed the meticulous (meaning: showing great attention to detail; very careful and precise; origin: Latin) craftsmanship of a traditional artisan, marveling at the skill and dedication passed down throughgenerations. These personal touches breathe life into your essay, making it relatable and engaging. Don't shy away from discussing the challenges and changes faced by traditional cultures in the modern world. Explore how globalization and technological advancements have impacted these age-old customs. Are they fading into obscurity, or are communities finding innovative ways to preserve and adapt them? This critical analysis adds a layer of complexity to your essay, demonstrating a nuanced understanding of the dynamics between tradition and modernity. Finally, conclude by reflecting on the enduring value of traditional cultures. Emphasize their role in fostering a sense of identity, community, and continuity in an ever-changing world. These traditions, passed down through generations like precious heirlooms, connect us to our past, shape our present, and guide our future. By preserving and celebrating them, we enrich the human experience and ensure that the vibrant tapestry of our shared heritage continues to flourish for generations to come.。
2024-2025学年浙江省杭州市英语高三上学期模拟试题与参考答案一、听力第一节(本大题有5小题,每小题1.5分,共7.5分)Question: What does the man mean?A. He needs to have his bike repaired.B. He has to get ready for an exam.C. He wants to take a walk with the woman.D. He prefers cycling to any other exercise.Answer: AExplanation: The conversation hints that the man’s bike is broken, and he’s mentioning how he has to take the bus to work because of it. The line “I have to take the bus today because my bike is broken” clearly indicates that he needs to have his bike repaired.Question: When does the film start?A. At 7:30.B. At 8:00.C. At 8:30.D. At 9:00.Answer: CExplanation: The woman in the conversation says, “The film starts at halfpast eight,” which directly corresponds to 8:30. Hence, the correct answer isC.3、 What is the man planning to do tonight?A. Go to a movie.B. Have dinner with friends.C. Attend a lecture.Answer: AExplanation: In the audio clip, the woman asks the man if he wants to go to the m ovies tonight. The man responds positively, saying “Yeah, that sounds good.” This indicates that he is planning to go to a movie tonight, hence the answer is A.4、 Where does the conversation most likely take place?A. In a classroom.B. At a library.C. In a restaurant.Answer: BExplanation: The clues in the conversation suggest that the two speakers are discussing the availability of books and the library’s hours. For instance, one of them might mention checking out a book or asking about the library’s closing time. These details point to the conversation taking place in a library setting, making B the correct answer.5.What time will the train arrive at the station?A. 7:15 p.m.B. 7:45 p.m.C. 8:15 p.m.Answer: A. 7:15 p.m.Explanation: In the audio clip, the announcer clearly states, “The next train to arrive at platform 5 will be the 7:15 p.m. service to London.” This directly answers the question of what time the train will arrive at the station. Therefore, the correct answer is A, 7:15 p.m. The other options, B and C, are not mentioned in the audio and can be eliminated as incorrect.二、听力第二节(本大题有15小题,每小题1.5分,共22.5分)1.Question: What time does the train to London depart?A. 8:15 a.m.B. 8:45 a.m.C. 9:00 a.m. Answer: B Explanation: The recording states, “The next train to London leaves at 8:45 a.m. from platform 3.” Therefore, the correct answer is B, 8:45 a.m.2.Question: Where is the man planning to go for his vacation?A. The beach.B. The mountains.C. The city. Answer: A Explanation: The man in the recording says, “I’m really looking forward to my vacation at the seaside. The beach is where I can truly relax.” This indicates that he plans to go to the beach for hisvacation, so the answer is A.3、What does the man mean?A. He can’t stand the heat.B. He wants to work outdoors.C. He enjoys staying indoors.Answer: A Explanation: In the listening material, the man complains about the high temperature outside and says “I can’t stand the heat.” This directly corresponds to option A, which states that he can’t stand the heat.4、When does the woman plan to start her new job?A. Next Monday.B. This weekend.C. Tomorrow morning.Answer: A Explanation: The woman in the listening material says “I’m going to start my new job next Monday.” This directly corresponds to option A, which states that she plans to start her new job next Monday.5、Question: What time does the train leave for New York?A. 7:30.B. 8:30.C. 9:30.Answer: BExplanation: In the audio, the speaker clearly states, “The next train to New York departs at 8:30 am from platform 5.” This directly corresponds tooption B, confirming that the train leaves at 8:30.6、Question: Where should the listener go if he wants to buy a map of the city?A. The gift shop.B. The information desk.C. The bookstore.Answer: BExplanation: The audio mentions, “For any inquiries or if you need a map of the city, please head to the information desk located at the main entrance.” This information directs the listener to the information desk for acquiring a city map, thus making B the correct answer.7、Question: What time does the train to London depart?A. At 9:30 am.B. At 10:00 am.C. At 10:30 am.Answer: BExplanation: The audio clip st ates, “The next train to London leaves at 10 o’clock sharp.” This directly corresponds to option B, indicating that the train departs at 10:00 am.8、Question: How much will the speaker pay for the two books?A.15.B.20.C.25.Answer: CExplanation: The dialogue between the speaker and the cashier goes as follows: “I’d like to buy these two books, please.” “That’ll be12.50 each, so a total of25.” This confirms that the total cost for the two books is25, matching option C.9、 What is the man going to do on Friday?A. Play football.B. Go shopping.C. Have a meeting.Answer: C Explanation: The dialogue states, “I’m sorry, but I can’t go shopping with you on Friday. I have a meeting that afternoon.” The man mentions he has a meeting on Friday afternoon, so h e won’t be able to go shopping. Therefore, the correct answer is C.10、 Where does the conversation most probably take place?A. In a classroom.B. In a restaurant.C. In a library.Answer: A Explanation: The conversation includes references to “homework” and “exam”, which are commonly associated with a classroom setting. Additionally, there is no mention of food or books, which would typically be discussed in a restaurant or library respectively. Hence, the mostprobable location for this conversation is a classroom, making A the correct answer.11.What time does the train leave for London?A. 8:30 am.B. 9:00 am.C. 9:30 am.Answer: BExplanation: In the conversation, the woman asks the man about the train schedule to London. The man responds, “The next train to London leaves at 9 o’clock sharp.” This clearly indicates that the train leaves at 9:00 am, making option B the correct answer.Conversation 2:12.Why does the man suggest the woman take the bus instead of driving?A. To avoid traffic congestion.B. To save money on gas.C. To enjoy the scenery along the way.Answer: AExplanation: During the conversation, the woman expresses her intention to drive to the city center for a meeting. The man advises her to take the bus instead, saying, “It’s rush hour now. You’ll just get stuck in traffic. The bus will get you there faster.” This suggests that the main reason for his suggestion is to avoid traffic congestion, making option A the correct answer.13、Question: What is the man planning to do this weekend?A. Go fishing.B. Watch a football game.C. Visit his cousin.Answer: A. Go fishing. Explanation: In the audio, the man says, “I’m thinking of going fishing this weekend. It’s been a while since I last did it.” This directly indicates that he is planning to go fishing, hence option A is the correct answer.14、Question: Where does the conversation most likely take place?A. In a hospital.B. At a bus stop.C. In a restaurant.Answer: B. At a bus stop. Explanation: The dialogue includes phrases like “the next bus” and “waiting for the bus,” which suggest that the speakers are discussing their wait for public transportation. This indicates that the conversation is most likely taking place at a bus stop, hence optionB is the correct answer.15、Listen to the recording and choose the best answer to the question you hear.Question: What time will the train arrive at the station?Options:A. 8:15 a.m.B. 8:45 a.m.C. 9:15 a.m.Answer: BExplanation: In the recording, the speaker clearly states, “The train is scheduled to arrive at the station at 8:45 a.m.” This directly corresponds to option B, making it the correct answer. The other options, A and C, are not mentioned in the recording and hence incorrect.三、阅读第一节(第1题7.5分,其余每题10分,总37.5分)First QuestionReading Comprehension - Section APassage:The art of gardening has been a source of relaxation and creativity for centuries. From the ancient civilizations of Mesopotamia, where irrigation systems were devised to nourish lush gardens, to modern-day urban rooftop gardens, humans have continually found solace and beauty in nurturing plants. Gardening is more than just tending to the soil and watching seeds grow; it’s a meditative practice that connects individuals with nature, fostering a sense of accomplishment and well-being.In recent years, the trend of urban gardening has gained momentum, as more and more city dwellers seek to bring a touch of green into their lives. Rooftop gardens, vertical gardens, and even indoor herb gardens have become popular ways to combat the stress of city living and improve air quality. These spaces notonly provide aesthetic pleasure but also serve as havens for wildlife, such as birds and butterflies, attracted by the variety of flora.Gardening also offers numerous health benefits. Regular exposure to nature has been shown to reduce stress levels, improve mood, and even boost the immune system. The physical act of gardening, including digging, planting, and weeding, provides a low-impact workout, strengthening muscles and improving flexibility. Moreover, the act of nurturing plants can be therapeutic, helping to alleviate anxiety and depression.Yet, the benefits of gardening extend beyond the individual. Community gardens, where neighbors come together to cultivate shared spaces, foster a sense of belonging and camaraderie. These spaces often become hubs of social activity, where people exchange gardening tips, share harvests, and even hold educational workshops. Community gardens can also play a role in food security, providing fresh produce to those who may not have access to healthy, affordable options.As the world faces increasing challenges related to climate change and environmental degradation, gardening takes on even greater significance. By planting native species and incorporating sustainable practices, gardeners can contribute to biodiversity conservation and eco-restoration efforts. Every garden, no matter how small, has the potential to make a positive impact on the planet.Questions:1.What is the main theme of the passage?•Answer: The benefits and significance of gardening.2.What is a modern trend in gardening mentioned in the passage?•Answer: The trend of urban gardening, where city dwellers bring green spaces into their lives.3.How does gardening benefit individuals, according to the passage?•Answer: Gardening reduces stress, improves mood, boosts the immune system, provides a low-impact workout, and can be therapeutic for mental health.4.What role can community gardens play in society?•Answer: Community gardens foster a sense of belonging and camaraderie, serve as hubs of social activity, and can contribute to food security by providing fresh produceto those in need. Second PassageReading ComprehensionPassage:Title: The Benefits of Reading BooksIn today’s fast-paced digital age, where screens dominate our lives, the act of reading a physical book can often seem like a relic of the past. However, the benefits of delving into the pages of a well-crafted novel, athought-provoking essay, or an informative non-fiction piece are numerous and undeniable.Firstly, reading books enhances cognitive abilities. Studies have shown that regular reading can improve vocabulary, memory, and even brain connectivity. As we engage with complex narratives and diverse perspectives, our minds areforced to stretch and adapt, strengthening neural pathways and fostering critical thinking skills.Secondly, reading is a powerful tool for emotional intelligence. Books transport us to different worlds, allowing us to experience emotions and situations that may be beyond our daily reach. This emotional immersion helps us develop empathy, understanding, and resilience, making us better equipped to navigate the complexities of human relationships.Moreover, reading promotes creativity and imagination. When we read, our minds are free to wander, creating mental images and scenarios based on the words on the page. This process stimulates the imagination, fostering creativity in both our personal and professional lives.Lastly, books are a source of knowledge and inspiration. They can introduce us to new ideas, cultures, and histories, broadening our horizons and igniting a lifelong love of learning. For many, books serve as a compass, guiding them through life’s challenges and uncertainties.In conclusion, the benefits of reading books are vast and multifaceted. From enhancing cognitive abilities to fostering emotional intelligence, creativity, and inspiration, books hold a unique place in our lives. As we continue to navigate the digital landscape, let us not forget the timeless joy and value of reading.Questions:1.What is the main benefit of reading books according to the passage?•Answer: Reading books enhances cognitive abilities, such as vocabulary, memory, and critical thinking skills.2.How does reading contribute to emotional intelligence?•Answer: Reading promotes emotional intelligence by transporting us to different worlds and allowing us to experience emotions and situations, fostering empathy,understanding, and resilience.3.What role does reading play in stimulating creativity and imagination?•Answer: Reading stimulates creativity and imagination by encouraging our minds to wander and create mental images and scenarios based on the words on the page.4.Why are books considered a source of knowledge and inspiration?•Answer: Books are considered a source of knowledge and inspiration because they introduce us to new ideas, cultures, and histories, broadening our horizons andigniting a lifelong love of learning. Third Section: Reading ComprehensionPassage:Title: The Benefits of Reading for Stress ReliefIn today’s fast-paced world, stress has become an almost inevitable part of our daily lives. From work deadlines to personal relationships, there are countless sources of stress that can take a toll on our mental and physical well-being. However, amidst this chaos, one simple yet powerful activity stands out as an effective stress reliever: reading.Research has consistently shown that reading can have a profound impact on reducing stress levels. When we immerse ourselves in a good book, our minds shift away from the pressures of the present and transport us to a different world.This escape, even if temporary, provides a much-needed break from the stressors of daily life.Moreover, reading promotes relaxation by lowering heart rate and reducing muscle tension. As we lose ourselves in the story, our bodies enter a state of deep rest, similar to that achieved through meditation or yoga. This physical relaxation, in turn, contributes to mental calmness and clarity.But the benefits of reading extend beyond mere stress relief. Regular reading has been linked to improved cognitive function, increased empathy, and expanded vocabulary. It fosters creativity and imagination, encouraging us to think outside the box and explore new ideas.Furthermore, reading can serve as a form of self-care, allowing us to nurture our minds and souls. By dedicating time to reading, we prioritize our own mental health and well-being, sending a powerful message to ourselves that we matter and deserve to be taken care of.In conclusion, reading is a valuable tool for managing stress and promoting overall well-being. By engaging in this simple yet powerful activity, we can find solace, relaxation, and a sense of escape from the pressures of modern life.Questions:1.What is the main idea of the passage? Answer: The benefits of readingfor stress relief.2.How does reading help reduce stress levels? Answer: By shifting ourminds away from present pressures and transporting us to a differentworld.3.What physical effects does reading have on the body? Answer: Readingpromotes relaxation by lowering heart rate and reducing muscle tension.4.What additional benefits of regular reading are mentioned in the passage?Answer: Improved cognitive function, increased empathy, expandedvocabulary, fostering creativity and imagination, and serving as a form of self-care. Question 4:Read the passage carefully and answer the following questions:1.What is the main idea of the passage?•Answer: The power of reading and its numerous benefits for personal growth, academic success, and emotional well-being.2.According to the passage, what are some of the academic benefits of reading?•Answer: Reading improves vocabulary, comprehension, and critical thinking skills, all of which are crucial for academic success.3.How does reading affect emotional and psychological well-being?•Answer: Reading can provide comfort and solace during difficult times, inspire creativity and imagination, and foster empathy for others, all of which contribute toemotional and psychological well-being.4.Why is it important to prioritize reading in today’s digital age?•Answer: In today’s fast-paced, digital age, prioritizing reading helps us slow down, focus our minds, and engage in meaningful, thought-provoking experiences amidstthe overwhelming amount of information readily available.四、阅读第二节(12.5分)Title: The Benefits of ReadingReading is a fundamental skill that opens doors to knowledge, imagination, and personal growth. Throughout history, books have been considered as windows to the world, allowing individuals to experience different cultures, perspectives, and emotions without ever leaving their rooms. In today’s fast-paced society, where technology dominates our daily lives, the importance of reading cannot be overlooked. Here are just a few benefits of cultivatinga love for reading.1.Improved Cognitive Abilities: Regular reading stimulates the brain,enhancing cognitive functions such as memory, attention span, andcritical thinking. As we read, our minds work to process information, make connections, and form opinions, thereby exercising and strengthening our mental muscles.2.Enhanced Vocabulary: Reading exposes us to a vast array of words andphrases, broadening our vocabulary. This not only improves our writing skills but also enriches our speech, making us more articulate andconfident communicators.3.Stress Relief: Escaping into a good book can be a powerful tool forstress reduction. By immersing ourselves in a fictional world or learning about fascinating topics, we temporarily forget our worries, providinga mental break from the stresses of daily life.4.Improved Empathy: Reading about diverse characters and theirexperiences fosters empathy. As we connect with the emotions and struggles of others, we become more understanding and compassionate towards those around us.5.Encourages Lifelong Learning: Books are a treasure trove of knowledge,spanning every subject imaginable. By reading, we continue to learn and grow throughout our lives, nurturing a curious and inquisitive mind. Question 51-55:51.What is the main purpose of the passage?A. To compare reading with technology.B. To promote the importance of reading.C. To criticize the lack of reading habits.D. To explain the history of books.Answer: B52.According to the passage, what does reading do to our cognitive abilities?A. It weakens them over time.B. It has no significant impact.C. It stimulates and enhances them.D. It slows down the brain’s function.Answer: C53.Which benefit of reading is not mentioned in the passage?A. Improved vocabulary.B. Enhanced critical thinking.C. Increased physical strength.D. Stress relief.Answer: C54.How does reading contribute to our empathy?A. By limiting our exposure to different perspectives.B. By fostering a sense of indifference towards others.C. By allowing us to connect with diverse characters and their experiences.D. By encouraging us to avoid social interactions.Answer: C55.What is the last benefit of reading mentioned in the passage?A. It improves memory and attention span.B. It enhances our vocabulary and writing skills.C. It encourages lifelong learning.D. It provides a mental break from daily stress.Answer: C五、语言运用第一节 _ 完形填空(15分)Passage for Cloze Test:Once upon a time, there was a young man named Jack who lived in a small village. He was known for his 1 courage and never-give-up attitude. One day, Jack heard about a legendary treasure hidden deep in the heart of the forest, guarded by a fierce dragon. Despite the warnings from the 2 villagers, Jack was determinedto embark on this adventurous journey.Armed with only a rusty sword and a bag of bread, Jack set off into the unknown. The forest was dense and 3, with thorny bushes and treacherous paths. But Jack, with his strong heart and 4 mind, persevered.As he journeyed deeper, Jack came across various challenges. He had to 5 rushing rivers, climb steep cliffs, and even evade the traps set by mischievous animals. Yet, he never lost sight of his goal –the treasure and the glory that awaited him.Days turned into weeks, and Jack’s body began to 6 from the exhaustion of the journey. His clothes were torn, and his feet were blistered. But his spirit remained unbroken. One fateful day, as he stumbled upon a clearing, Jack saw the dragon, looming large and fearsome before him.For a moment, Jack’s courage faltered. But then, he remembered all the hardships he had overcome and the 7 of his fellow villagers. Drawing a deep breath, he summoned all his strength and charged towards the dragon.The battle was fierce and brutal. The dragon breathed fire, and Jack dodged and weaved, striking back with his sword whenever he could. Time seemed to stand still as the two combatants fought to the 8.Finally, with a mighty swing of his sword, Jack struck the dragon’s heart. The creature let out a deafening roar and fell to the ground, defeated. Jack stood victorious, his heart pounding with 9.He searched the dragon’s lair and found the treasure – gold, jewels, andartifacts beyond his wildest dreams. But as he gazed upon the riches, Jack realized that the true treasure was not the material wealth but the 10 he had gained – courage, perseverance, and self-belief.With a heart full of gratitude, Jack returned to his village, where he was greeted as a hero. He shared his 11 with the villagers, teaching them that true strength comes from within and that no obstacle is too great when one has the will to overcome it.Cloze Test:1. A. hiddenB. immenseC. boundlessD. unparalleledAnswer: D2. A. superstitiousB. skepticalC. enthusiasticD. cautiousAnswer: B3. A. invitingB. sereneC. treacherousD. enchantingAnswer: C4. A. feebleB. fragileC. resilientD. hesitant Answer: C5. A. fordB. drainC. diveD. sail Answer: A6. A. healB. weakenC. strengthenD. recover Answer: B7. A. disappointmentB. admirationC. sympathyD. envy Answer: B8. A. endB. limitC. conclusionD. deathAnswer: A9. A. sorrowB. angerC. excitementD. fearAnswer: C10.A. wisdomB. experienceC. treasureD. fortuneAnswer: A11.A. adventureB. journeyC. lessonD. victoryAnswer: CThis cloze test was designed to assess comprehension of the text as well as vocabulary and contextual understanding.六、语言运用第二节 _ 语法填空(15分)Passage for Grammar Filling:Once upon a time, in a small village nestled in the heart of a lush forest, there lived a young boy named Jack. Jack was known for his (1)_______(curious) and adventurous spirit. One day, while exploring the depths of the forest, he stumbled upon an ancient tree with a (2)_______(shine) golden trunk. Intrigued, Jack approached the tree and noticed a small, intricately carved door. Without hesitation, he pushed it open, revealing a hidden staircase leading downwards.Filled with (3)_______(excite), Jack began his descent, his heart pounding with anticipation. As he reached the bottom, he found himself in a vast underground chamber, illuminated by glowing crystals embedded in the walls. In the center of the chamber stood a wise old wizard, who greeted Jack warmly.“Welcome, young one,” said the wizard. “You have found the realm of (4)_______(magic). I sense great potential in you. I offer you a choice: to learn the secrets of magic and use it for good, or to leave this place and forget what you have seen.”Jack, without a moment’s hesitation, chose to learn. The wizard taught him the basics of magic, from simple spells to more complex rituals. Jack’s (5)_______(absorb) nature allowed him to progress rapidly, and soon he was mastering the art with ease.But a s Jack’s powers grew, so did his (6)_______(responsible). He realized that with great power came great responsibility. He vowed to use his magic to protect his village and the forest from any harm that might come their way.One day, a fierce dragon threatened to destroy the village. Jack, now askilled magician, stepped forward to confront the beast. Using all his (7)_______(know), he cast a powerful spell that banished the dragon back to its lair. The villagers cheered and hailed Jack as a hero.From that day on, Jack used his magic to bring prosperity and peace to his community. He also traveled far and wide, helping those in need and spreading the message of (8)_______(kind).Grammar Filling Questions:1.Jack was known for his (1)_______(curious) and adventurous spirit.A. curiousB. curiouslyC. curiosity Answer: C(Note: Only one question is provided as per the request, but the remaining nine questions can be structured similarly, focusing on the appropriate form of the given words or phrases in the context of the passage.)七、写作第一节 _ 应用文写作(15分)Title: Write a letter of recommendation for a student applying for a university scholarship.Instructions: Imagine you are the head teacher of a high school, and one of your outstanding students, Li Hua, has requested a letter of recommendation for a prestigious university scholarship. Li Hua has consistently demonstrated academic excellence, leadership skills, andcommunity involvement throughout his/her high school career. Compose a letter that highlights Li Hua’s achievements, qualities, and why you believe he/she deserves this scholarship.Writing Sample:[School Letterhead][Date]To Whom It May Concern,I am writing this letter with utmost enthusiasm to recommend Li Hua, a remarkable student of our esteemed high school, for the prestigious university scholarship. As the head teacher, I have had the privilege of witnessing Li Hua’s remarkable journey from a diligent student to a well-rounded individual who excels in academics, leadership, and community service.Academically, Li Hua stands out as one of the brightest students in our school. Throughout his/her high school years, he/she has consistently maintained an impeccable academic record, achieving top grades in all subjects. His/her passion for learning is evident in the depth of understanding and critical thinking he/she demonstrates in class discussions and assignments. Li Hua’s intellectual curiosity has led him/her to engage in independent research projects, further enhancing his/her knowledge and skills.Beyond academics, Li Hua is a natural leader. He/She has actively participated in various extracurricular activities, including serving as the captain of our school’s debate team and organizing charity events for local。
tpo68三篇阅读原文译文题目答案译文背景知识阅读-1 (2)原文 (2)译文 (5)题目 (8)答案 (15)背景知识 (17)阅读-2 (20)原文 (20)译文 (24)题目 (27)答案 (35)背景知识 (37)阅读-3 (41)原文 (41)译文 (44)题目 (47)答案 (54)背景知识 (55)阅读-1原文Salt and the Rise of Venice①The city of Venice,on Italy’s coastline,achieved commercial dominance of southern Europe during the Middle Ages largely because of its extensive trade in the valuable commodity of salt.At first,Venice produced its own salt at its Chioggia saltworks.For a time its principal competitor in the region was the town of Cervia,with Venice having the advantage because Chioggia was more productive.But Chioggia produced a fine-grained salt,so when Venetians wanted coarser salt, they had to import it.Then,in the thirteenth century,after a series of floods and storms destroyed about a third of the salt-producing ponds in Chioggia,the Venetians were forced to import even more salt.②That was when the Venetians made an important discovery.More money could be made buying and selling salt than producing it. Beginning in1281,the government paid merchants a subsidy on salt landed in Venice from other areas.As a result of this assistance, shipping salt to Venice became so profitable that the salt merchants could afford to ship other goods at prices that undersold theircompetitors.Growing fat on the salt subsidy,Venice merchants could afford to send ships to the eastern Mediterranean,where they picked up valuable cargoes of Indian spices and sold them in western Europe at low prices that their non-Venetian competitors could not afford to offer.That meant that Venetians were paying extremely high prices for salt,but they did not mind expensive salt if they could dominate the spice trade and be leaders in the grain trade.When grain harvests failed in Italy,Venice would use its salt income to subsidize grain imports from other parts of the Mediterranean and thereby corner the Italian grain market.③Unlike the Chinese salt monopoly,the Venetian government never owned salt but simply took a profit from regulating its trade.Enriched by its share of sales on high-priced salt,the salt administration could offer loans to finance other trade.Between the fourteenth and sixteenth centuries,a period when Venice was a leading port for grains and spices,30to50percent of the tonnage of imports to Venice was in salt.All salt had to go through government agencies.The salt administration issued licenses that told merchants not only how much salt they could export but also to where and at what price.The salt administration also maintained Venice’s palatial public buildings andthe complex hydraulic system that prevented the metropolis from washing away.Many of Venice’s grand statues and ornamental buildings were financed by the salt administration.④Venice carefully built its reputation as a reliable supplier,and so contracts with the merchant state were desirable.Venice was able to dictate terms for these contracts.In1250,when Venice agreed to supply Mantua and Ferrara with salt,the contract stipulated that these cities would not buy salt from anyone else.This became the model for Venetian salt contracts.As Venice became the salt supplier to more and more countries,it needed more and more salt producers from which to buy.Merchants financed by the salt administration went farther into the Mediterranean,buying salt from many distant sources. Wherever they went,they tried to dominate the supply,control the saltworks,and even acquire them if they could.⑤Venice manipulated markets by controlling production.In the late thirteenth century,wishing to raise the world market price,Venice had all saltworks on the Greek island of Crete destroyed,and it banned the local production of salt.The Venetians then brought in all the saltneeded for local consumption,built stores to sell the imported salt, and paid damages to the owners of the saltworks.The policy was designed to control prices and at the same time keep the locals happy. Aiding its ability to ruthlessly manipulate commerce and control territory,Venice maintained the ships of the merchant fleet as a naval reserve and called them into combat when needed.The Venetian fleet patrolled the Adriatic Sea,stopped ships,inspected cargo,and demanded licensing documents to make sure all commercial traffic was conforming with its regulations.译文盐和威尼斯的崛起①位于意大利海岸线上的威尼斯城在中世纪期间在南欧取得了商业主导地位,主要是因为它广泛从事有价值的盐贸易。
英语46级作文跑题方法To deviate from the topic in an English 46-level essay, one must employ subtle techniques that maintain coherence and sophistication while diverting from the main theme. Here are some strategies to accomplish this:1. Introduce Tangential Ideas: Start by introducing related but ultimately divergent concepts. Use transitional phrases like "While this may seem unrelated, it's essential to consider..." or "Another aspect worthy of exploration is..." to smoothly transition away from the main topic.2. Utilize Extended Examples: Incorporate elaborate examples or anecdotes that may initially appear relevant but gradually veer off course. By gradually introducing details and tangents within the examples, the reader may not immediately notice the deviation from the main topic.3. Employ Digressions: Insert parenthetical asides or footnotes that delve into tangential topics. Thesedigressions should be seamlessly integrated into the flow of the essay, providing additional context or perspective while subtly leading away from the main theme.4. Explore Contradictory Perspectives: Introduce counterarguments or alternative viewpoints that, while related to the main topic, ultimately lead the discussion in a different direction. Use phrases like "On the other hand..." or "However, it's worth considering the opposing viewpoint..." to shift the focus away from the original subject.5. Engage in Philosophical Reflection: Incorporate philosophical musings or abstract reflections that may not directly address the topic at hand but add depth and complexity to the essay. These reflections can serve as a vehicle for exploring tangential ideas while maintaining the intellectual rigor expected at the 46-level.6. Challenge Assumptions: Question underlying assumptions or premises related to the main topic, leading to a broader discussion that gradually moves away from theoriginal subject. By challenging established notions, you can subtly steer the conversation in a new direction without appearing to completely disregard the prompt.7. Use Sophisticated Language and Syntax: Employ advanced vocabulary, intricate sentence structures, and rhetorical devices to create an aura of erudition and complexity. This can help mask the deviation from the main topic by captivating the reader's attention and fostering an impression of intellectual depth.In summary, the key to veering off topic in an English 46-level essay is to employ subtle and sophisticated techniques that maintain the illusion of coherence and depth while gradually leading the discussion in a different direction. By skillfully incorporating tangential ideas, extended examples, digressions, contradictory perspectives, philosophical reflections, and challenging assumptions, one can effectively deviate from the main topic without arousing suspicion.。
2023年1月浙江高考英语阅读B篇解析(笔记版)2023年1月浙江高考英语阅读B篇解析(笔记版)2023年1月的浙江高考英语阅读B篇是一个重要的考试部分。
在本文中,我们将对该篇阅读材料进行详细解析和分析,帮助考生更好地理解文中的内容,并为他们在考试中取得更好的成绩提供指导。
首先,让我们对阅读材料进行整体概述。
该篇文章主要谈论了气候变化对海洋中的生物多样性和海洋生态系统的影响。
文章列举了一些具体的例子和数据,旨在向读者展示气候变化是如何对海洋生态系统造成负面影响的。
接下来,我们将逐段对文章内容进行解析。
第一段是文章的引言部分,旨在向读者介绍本文的主题。
该段落提到了气候变化对地球的重要性,并简要概述了气候变化对海洋生物和生态系统的影响。
此处,作者通过引用科学家的观点来支持他们的论述,使文章更有说服力。
接着,第二段详细讨论了气候变化对海洋温度的影响。
文章指出,随着地球变暖,海洋温度上升,这对海洋生物的生存环境带来了很大的威胁。
为了支持这个论点,作者引用了一项研究,并分享了相关数据。
这些具体的信息有助于读者更好地理解气候变化对海洋生态系统的负面影响。
在第三段,文章转向讨论气候变化对海洋酸化的影响。
作者解释了二氧化碳的排放是造成海洋酸化的主要原因,并指出这一现象对海洋生物的生存造成了严重的威胁。
为了支持这一观点,作者引用了另外一项研究,并提供了相关的事实和数据。
这些信息加强了文章的可信度。
随后的一段具体讨论了气候变化对海洋生物多样性的影响。
文章指出,气候变化导致的环境变化对海洋生态系统中的物种多样性产生了负面影响。
为了支持这一说法,作者引用了一些案例研究,并提供了适当的例证。
这些具体的例子有助于读者更好地理解气候变化对海洋生物多样性的威胁。
最后一段是文章的结论部分,总结了文章的主要观点。
作者再次强调了气候变化对海洋生态系统的危害,并呼吁人们采取积极的行动来减缓气候变化的影响。
这一段提供了一个有力的结论,强调读者应对气候变化负责,并呼吁他们行动起来。
Towards an extensible context ontology forAmbient IntelligenceDavy Preuveneers1,Jan Van den Bergh2,Dennis Wagelaar3,Andy Georges4, Peter Rigole1,Tim Clerckx2,Yolande Berbers1,Karin Coninx2,VivianeJonckers3,and Koen De Bosschere41Department of Computer Science,K.U.LeuvenCelestijnenlaan200A,B-3001Leuven,Belgium,{davy.preuveneers,peter.rigole,yolande.berbers}@cs.kuleuven.ac.be,http://www.cs.kuleuven.ac.be2Expertise Centre for Digital Media,Limburgs Universitair CentrumUniversitaire Campus,B-3590Diepenbeek,Belgium,{jan.vandenbergh,tim.clerckx,karin.coninx}@luc.ac.be,http://www.edm.luc.ac.be3System and Software Engineering Lab,Vrije Universiteit BrusselPleinlaan2,B-1050Brussels,Belgium,dennis.wagelaar@vub.ac.be,vejoncke@info.vub.ac.be,http://ssel.vub.ac.be4Department of Electronics and Information Systems,Ghent UniversitySt.-Pietersnieuwstraat41,B-9000Gent,Belgium,{ageorges,kdb}@elis.UGent.be,http://www.elis.UGent.be/parisAbstract.To realise an Ambient Intelligence environment,it is para-mount that applications can dispose of information about the context inwhich they operate,preferably in a very general manner.For this purposevarious types of information should be assembled to form a representa-tion of the context of the device on which aforementioned applicationsrun.To allow interoperability in an Ambient Intelligence environment,it is necessary that the context terminology is commonly understoodby all participating devices.In this paper we propose an adaptable andextensible context ontology for creating context-aware computing infras-tructures,ranging from small embedded devices to high-end service plat-forms.The ontology has been designed to solve several key challenges inAmbient Intelligence,such as application adaptation,automatic codegeneration and code mobility,and generation of device specific user in-terfaces.1IntroductionSmall portable devices,such as PDAs and mobile phones,are becoming more widespread.As a consequence,people are expecting the functionalities provided by these devices to increase.GSMs with a quite extensive amount of organizer software,games and multimedia services are no exception,rather they are rapidlybecoming a default asset in everyone’s life.As devices grow more powerful,with respect to computing power and autonomy,we expect the software on such em-bedded devices to become more advanced too.Additionally,at home and at work,embedded systems start getting a foothold.Home automation systems for example are no longer the rare expensive gadgets they used to be.Observing these trends,the IST Advisory Group(ISTAG)[1]has concluded that within a few years,real Ambient Intelligence(AmI)environments will emerge.In such environments,devices will communicate and interact independently,without im-mediate user interaction.The devices will make decisions based on a variety of factors,including user preferences and the presence of other users in the near neighbourhood.To accomplish this,devices need to be aware of contextual information within their environment.In order to sort out any information that may characterize the situation of a person or a computing device,it is a must to structure the large amount of data so that synthesizing of valuable information from varying sources is possible.The resulting structured data is called the context of the device.The context thus describes all the relevant information to allow software on a device to semi-automatically interact in a well-defined way with its environment.The context model proposed in this paper will be used in the CoDAMoS project[2] to solve several key challenges in the area of Ambient Intelligence by supporting context-driven adaptation of mobile services.A short overview of the context requirements to support an Ambient Intel-ligence environment is given in section2.In section3we describe related work on the modeling of context and their shortcomings.We then present our context ontology proposal in section4and end this paper with a conclusion and future work in section5.2Requirements for Ambient IntelligenceThe aim of AmI computing infrastructures is to provide intelligent services to the user by targeting software towards a specific context before delivery,and adapting it to a changing context after delivery.More specifically,it will require integration of state-of-the-art concepts within several computer science research domains,such as application adaptation,code mobility in nomadic environ-ments,automatic code generation and context-aware user interfaces.Therefore, detailed context information should be provided to be able to accomplish these objectives,resulting in the following requirements for a basic context model: R.1Application adaptivity:With dynamic environments and changing con-texts in mind,it is important that applications support some degree of adap-tivity.Hence,up-to-date information about the user,available services and host platforms,network connectivity,time,location and other sensed data should be included in the context model to assist appropriate application adaptation.R.2Resource awareness:As resources on embedded devices are sometimes too limited to run certain services,sufficient information about maximumand currently available resources,such as processing power,memory,battery life time and bandwidth,is needed to consider service adaptation or service relocation for lowering resource usage.R.3Mobile services:When the location of a user changes over time,whole services or parts thereof must be able to migrate almost instantaneously.Therefore,detailed information about the execution platform should allow autonomous migration when,for example,compatible virtual machines exist on two different platforms.R.4Semantic service discovery:Semantic discovery based on context in-formation enhances key-value based matching protocols by automatically incorporating search criteria that are relevant for the current user or device. R.5Code generation:By specifying the operating system,drivers,software libraries and virtual machines on an embedded device,code generation can be used to generate a dedicated implementation of a high-level service spec-ification to broaden the range of devices on which services can be deployed. R.6Context-aware user interfaces:Services at the end-user side that have to work within tight resource boundaries on mobile devices need user inter-faces that are adapted to their context of er interfaces can further adapt dynamically if the context changes over time.These requirements allow mobile services to be designed in a generic way,with functional variations to be generated for a range of platforms,but also so that they can adapt to context elements such as other services and resources available in their context.3Related WorkContext-awareness is a hot research domain,with interesting topics such as context modeling,formal context languages for specifying facts and interrela-tionships,and infrastructure support for querying and reasoning on contextual information using an inference engine.The Context Ontology Language(CoOL)[3]is an ontology-based context modeling approach,which uses the Aspect-Scale-Context(ASC)model where each aspect(e.g.spatial distance)can have several scales(e.g.kilometer scale or mile scale)to express some context information(e.g.20).Mapping functions exist to convert context information from one scale to another.CoOL is very useful for describing concepts with an inherent metric ordering such as in requirement R.2,though less practical for expressing scales for aspects as in requirement R.1. Chen et al.[4]propose a context broker architecture(CoBrA)using an ontology to describe persons,places and intentions.Less emphasis is put on the notion of services and related aspects,such as user interfaces and mobile devices on which these services are deployed,needed to fulfill the above requirements.Gu et al.[5]present a service-oriented context-aware middleware(SOCAM)based on a context model with person,location,activity and computational entity(such as a device,network,application,service,etc.)as basic context concepts.Thenotion of mobile services seems to be beyond the scope of this context model. Henricksen and Indulska[6]propose a context model that describes context based on several types of facts(e.g.sensed,static and profiled)subject to constraints and quality annotations.Some general description frameworks for expressing context are the Resource Description Framework(RDF)[7]and the Web Ontology Language(OWL)[8]. Other languages are built on top of these frameworks,but are more tailored to describing context.These include the Composite Capability/Preference Profiles (CC/PP)[9]and the User Agent Profiling Specification(UAProf)[10].All have been used to specify context.Korpip¨a¨a et al.[11]use RDF to describe sensor and derived sensor data on mobile /PP was used by Indulska et al.[12], but found to be too limited to describe complex context models.OWL,on the other hand,allows the definition of more complex context models and is used in several approaches[3–5].4Extensible Context OntologyConsidering the fast evolution in the hardware and software industry,it is impor-tant that decisions made today regarding our context specification are adaptable and extensible.Thus,we should remain as conservative as possible,keeping open the options for change in our context model.We therefore opted to define a ba-sic,generic context ontology1.Ontologies provide classes of objects,relationships and domain constraints on their properties.By mapping concepts in different ontologies,structured information can be shared.Hence,ontologies are good candidates to express meaning within our context specification.4.1General OverviewWe determined four main entities around which we built our ontology.These are based around the most important aspects in context information,which are also,sometimes partially,discussed in[13–15]:User:The user plays an important role within Ambient Intelligence.The appli-ances within its environment should adapt to the user,and not vice versa.Important properties include a user’s profile,but also his preferences,mood and current activity.Environment:The environment in which the user interacts is an important as-pect of the context specification.It consists of time and location information, and environmental conditions,such as temperature and lighting. Platform:This part is dedicated to the hardware and software description of a specific device.This includes among other things specifications of the processor,available memory and bandwidth,but also information about the operating system and other available software libraries.1The current implementation of our context ontology in OWL can be found at www.cs.kuleuven.ac.be/cwis/research/distrinet/projects/CoDAMoS/ontology/Service:Services provide specific functionality to the user.Specifying semantic and syntactic information sustains easy service discovery and service inter-action using a well-defined service interface.Every device will contain its own context specification with a full description of its provided services,while containing pointers to relevant information on devices in its environment.An overview of the proposed context ontology2is given in figure1.Fig.1.Context ontology overview4.2UserAccording to Dey[15],context information is only relevant if it influences a user’s task.This is why the user should take a central place in the Ambient Intelligence philosophy.Collecting information about his context enables applications and services to improve the usability of appliances.By accomplishing requirements R.1and R.6,it is possible to adapt the application as well as the user interface to the user’s preferences.In the ontology a distinction is made between a user’s preference,such as a preference for using small fonts,and his profile,containing facts such as gender,name and current employer.While the former may be subject to the current situation,the latter remains more or less static.When a user performs a task,this can be subdivided into several activities. Clerckx et al.[16]show it is possible to link context information to a model de-scribing the tasks a user can perform while using an application.The user fulfills a certain role,e.g.the project manager who is heading offto work for a meeting or the considerate father who picks up his children from school.Hence,people have different roles,but also different moods,and their personal preferences may depend on both issues.For example,consider the project manager,drowning in work,who does not want to be disturbed unless for urgent matters.Figure2 shows the relevant user concepts and relationships.2A(*)means a relationship with multiplicity of1or more.er ontology concepts4.3EnvironmentA user is not a singular entity in an ambient environment.He interacts through various devices with his environment and with other people.This environment continuously provides information that allows him to make well-informed deci-sions or that can influence his behaviour.However,the diversity of entities that can be sensed or measured is enormous,if not infinite.It is therefore useless to try to describe everything within the surroundings of a user or a device.As user mobility is a key aspect within Ambient Intelligence,important concepts in this part of the context specification to meet requirements R.1and R.3include:loca-tion,time and some environmental conditions.For example,due to some cloudy weather and heavy rain outside,the home automation system might decide to turn on the lights.Of course,this is not needed in the middle of the night or if nobody is at home.Figure3gives an overview of the ontology concepts and relationships for the environment.Another issue is that this information might be sensed by varying sources with different accuracies,with possibly conflicting measurements.It is very im-portant that we are reasonably confident about the accuracy of the derived information within the context specification.Note that the environment is not directly related to the user,but rather through the used platform:The envi-ronment is always sensed through a device.By explicitly specifying this,it is possible to reason about several properties of the sensed environment that re-quire knowledge of the measuring device,e.g.accuracy.Fig.3.Environment ontology concepts4.4PlatformThe platform section of the ontology provides a description of(i)the software that is available on the device for the user or other services to interact with,and (ii),the hardware which specifies the resources of the device.Since the presence of certain hardware and software elements in devices can vary,only the relevant entries of the context specification arefilled in.An overview of this part of the context specification is shown in Figure4.The software installed on the device The available software on a device is specified for the following reasons:(i)a service may require certain functionality to run,thus before deployment the service provider should be able to check for the presence of said functionality,and(ii)automated service builders must know for which software platform they are generating code.Hereby,we fulfill requirements R.3and R.5.Software that is available on the device can be described by the following required parameters,or properties in the context specification:Name:The software component name,e.g.Java Media Framework. Edition:The software edition,if applicable,e.g.Enterprise Edition. Version:The software version,e.g.2.11.While we will in general generate code[17]for a high-level API,such as the Java API,it sometimes may be necessary to drop to a lower level,such asFig.4.Platform ontology conceptsthe operating system or C-library.Therefore,we define the various software components,ranging from the lowest level to the high-level API’s.By specifying an exact edition or version of the software components,we can generate code that is optimised for usage with these components.Operating system:When code is generated for this level,it is necessary for the code generator to know about the API offered by the operating system (system calls)and e.g.the C-library(if any)present on the system.Examples are Windows CE3.0and Linux-2.4.19/glibc-2.3.2.Virtual machine:If a virtual machine is present,the code generator should know what type of machine-independent representation the machine accepts and what API is offered by it.Examples are J2EE[18],J2ME[19]and .NET[20].We also need to know the vendor and version of virtual machines.We have shown in[21]that the JVM can have a significant influence on the execution behaviour of a workload(JVM+application+input),especially for short or small applications.Middleware:Besides the operating systems and virtual machines that are present,additional‘middleware’packages and libraries may have been in-stalled as well,e.g.a CORBA broker[22].Rendering Engine:This forms the backend for rendering a user interface on the particular device supporting at least one modality.Examples are QT, Java Swing and Windows Forms.The hardware of the device For software deployment purposes,it is impor-tant that the context specifies the hardware in the device,such as the CPU type and properties,the available memory,networking capabilities,etc.If one wants to deploy a piece of software,obviously it shouldfit on the device, both statically,and dynamically(at runtime).Furthermore,for e.g.multi-media applications,it is important that deadlines can be met.Consider for exam-ple the decoding of a video sample.The user wants smooth rendering of the video-frames,making it necessary to decode each frame in time.Thus,if the performance of the video decoding software is too low,these deadlines will not be met.We distiguishfive hardware resources that should be described in the context to accomplish requirements R.1,R.2,R.3and R.5for the device to support service mobility or service profiling:(i)the CPU,(ii)storage(permanent),(iii) memory(volatile),(iv)power,and(v)network capabilities.Each of these have several properties that are important for code-generation and for subsequent performance estimation.For the latter,we should know e.g.the cache and TLB size,the branch predictor used,etc.,as they are used in the performance model we are developing.This model is needed to see if the generated code can actually run on the device,or if a simpler version should be instantiated.4.5ServicesIn several computer science domains the concept of services refers to a com-putational entity that offers a particular functionality to a possibly networked environment.Typical examples of where this term is used are in the domains of web services,telematics,residential gateways and mobile services.Although the previous domains target different users,they all have in common that these services are deployed to offer users a certain functionality using a well-defined interface,hereby providing a comfortable way for a user to achieve his goals. Our research is focussed on how services can dynamically interact and be aware of and be adapted to the current context,while keeping certain QoS aspects in mind.A user should be able to discover services in his environment and invoke them without too much hassle.This research involves requirements R.1,R.2and R.3.These services might be composed of other existing services and be adapted to personal preferences and to the device on which it is being employed.Hence service descriptions should be detailed enough to make this possible.Infigure5we give an overview of the main concepts regarding services.Typi-cally,a user wants to employ a service to accomplish a specific task.He therefore interacts with some I/O device(a touchscreen,keyboard,voice recognition,etc.). Services will generally be implemented using software modules being provided on a device.Hence,each platform can host several services and/or employ several remote services in the neighbourhood when the necessary network infrastructure is present.The level of detail at which services are described in the context specification of a device,depends on where these services are hosted.Each device is responsible for having a full description of its own services,including how it can be interfaced by other services.A high-level description of the services in its neighbourhood is more than adequate enough for doing service discovery using the context specification of the device to see if we are interested in a service and wouldFig.5.Service ontology conceptslike to receive more detailed information about rmation about required protocols and message formats can be negotiated later on if necessary,hence keeping bandwith usage to a minimum by only sending required information.We therefore provide a multi-level service description,by extending our con-text ontology with a service ontology called OWL-s[23].Although this ontology is tailored to web services and the semantic web[24],it also provides a rich and standardized framework to describe services in general.The Semantic Web community,using the OWL-s ontology specification,addresses the problem of having a lack of semantics within WSDL[25]service descriptions by adding a semantic layer based on the following concepts:Service profile:It provides a human readable description of the functionality of the service by specifying its inputs and outputs,information about the service provider,a quality rating and other attributes that can be used for service discovery.Service model:It describes what happens when the service is carried out, by giving more detailed information about the control-flow and data-flow involved in using the service so that the user or agent could perform an in-depth analysis of whether the service meets its needs.Service grounding:The service grounding deals with implementation details by specifying a communication protocol,message formats,other service spe-cific details.5Conclusion and Future WorkThe necessity of ontologies for the establishment of context-aware pervasive com-puting systems is broadly acknowledged.In this paper,we presented a basic, generic ontology for the description of context information.The ontology is currently expressed in OWL,but could also be expressed in other ontology languages.It consists of four basic context entities:(i)user,the central concept in context-aware computing,(ii)environment,the description ofrelevant aspects of the user’s surroundings,(iii)platform,the hardware and soft-ware of the device or devices through which a user interacts with the application or services and(iv)service,functionality offered in the user’s environment.Based on the gained experience and the feedback of industrial partners the context ontology will be further refined.Extensions,inevitable for the realization of concrete case studies for the CoDAMoS project[2],and refinements will be related to the presented basic ontology.Further attention will be paid to how emerging standardized ontologies for various aspects of context information will relate to the established ontology. When needed for our research objectives or accomplishment of case studies, relations between the ontologies will be specified to enhance our current ontology. 6AcknowledgementsThe CoDAMoS(Context-Driven Adaptation of Mobile Services)project IWT 030320is directly funded by the Flemish Institute for the Promotion of the Scientific-Technological Research in the Industry(IWT–Vlaanderen). 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