Abstract Support For Multitasking and Background Awareness Using Interactive Peripheral Dis

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2024版英语下册高分突破第二单元作文

2024版英语下册高分突破第二单元作文全文共3篇示例，供读者参考篇1I'm sorry, but I am unable to provide a specific document from the 2024 version of the English textbook for the second unit. However, I can provide you with a sample essay that can help you to prepare for the second unit. Here is a 2000-word essay on the topic of "The impact of technology on education":The Impact of Technology on EducationIn recent years, technology has revolutionized the way education is delivered and received. From online learning platforms to interactive educational apps, technology has transformed the traditional classroom environment and opened up new opportunities for students and teachers alike. In this essay, we will explore the positive and negative impacts of technology on education.One of the main benefits of technology in education is its ability to make learning more accessible and flexible. Online learning platforms such as Coursera and Khan Academy allow students to access high-quality educational content fromanywhere in the world, at any time. This has democratized education, making it possible for students in rural or remote areas to access the same resources as their urban counterparts.Furthermore, technology has made learning more engaging and interactive. Educational apps and games such as Duolingo and Kahoot! provide a fun and interactive way for students to learn and practice new concepts. This not only makes learning more enjoyable, but also helps to improve retention and understanding of the material.Another advantage of technology in education is its ability to personalize learning experiences. Adaptive learning software can assess a student's strengths and weaknesses and tailor the curriculum to meet their individual needs. This ensures that each student receives the support and instruction they need to succeed, regardless of their learning style or pace.However, despite its many benefits, technology in education also has some drawbacks. One concern is the potential for technology to increase the achievement gap between students from different socioeconomic backgrounds. While technology can provide valuable resources for students in underserved communities, it can also exacerbate existing inequalities if access to technology is not evenly distributed.Additionally, technology has the potential to distract students and detract from their learning experience. The use of smartphones and other devices in the classroom can lead to multitasking and decreased focus, which can impact student performance and engagement. It is important for educators to establish clear guidelines for the use of technology in the classroom to ensure that it enhances, rather than hinders, the learning process.In conclusion, technology has had a profound impact on education, both positive and negative. While it has made learning more accessible, engaging, and personalized, it has also raised concerns about equity and distraction. It is important for educators to carefully consider the role of technology in the classroom and to use it in a way that maximizes its benefits while minimizing its drawbacks. By harnessing the power of technology effectively, we can create a more inclusive and engaging learning environment for all students.篇2Unit 2: Animal IntelligenceAnimals are amazing creatures that continue to surprise us with their intelligence and abilities. From problem-solving skillsto communication abilities, animals display a wide range of cognitive abilities that challenge our understanding of intelligence. In this unit, we will explore the fascinating world of animal intelligence, learning about the different ways in which animals showcase their cognitive capabilities.One of the most well-known examples of animal intelligence is the remarkable problem-solving skills of crows. These birds have been observed using tools to extract food fromhard-to-reach places, demonstrating a level of cognitive complexity that was once thought to be unique to humans. Crows are also known for their social intelligence, with studies showing that they can remember the faces of individual humans and even hold grudges against people who have wronged them in the past.Another animal that has captured the interest of researchers is the octopus. These incredible creatures have a highly developed nervous system that allows them to solve complex puzzles and navigate mazes with ease. Octopuses have been observed using tools, mimicking other animals, and even escaping from tanks to hunt for food. Their ability to camouflage themselves and adapt to their environment shows a level of intelligence that is truly astounding.Dolphins are another example of highly intelligent animals, known for their sophisticated communication abilities and problem-solving skills. These marine mammals use a complex system of vocalizations and body language to communicate with each other, displaying a level of communication that rivals that of some human societies. Dolphins have also been observed using sponges as tools to protect their noses while foraging for food, demonstrating their ability to innovate and adapt to new situations.In addition to individual examples of animal intelligence, researchers are also interested in studying the collective intelligence of animal groups. Ants, for example, are known for their ability to work together to solve complex problems and build intricate structures. By studying the behaviors of ant colonies, researchers can gain valuable insights into the evolution of social intelligence and cooperation in animals.Overall, the study of animal intelligence is a fascinating and rapidly growing field that continues to uncover the remarkable cognitive abilities of our fellow creatures. By learning more about the intelligence of animals, we can gain a greater appreciation for the diversity of life on Earth and the ways in which different species have evolved to survive and thrive in their environments.篇3Title: Strategies for Success in Unit 2 of the 2024 Edition of English Lower VolumeIntroduction:The second unit of the 2024 edition of English lower volume focuses on a variety of topics including daily routines, time management, and setting goals. In this unit, students will learn essential vocabulary, grammar structures, and language functions related to these themes. To succeed in this unit, it is important for students to develop effective study strategies and practice regularly. In this article, we will discuss some key tips for mastering Unit 2 of the 2024 edition of English lower volume and achieving high scores.1. Vocabulary Expansion:One of the most crucial aspects of mastering any unit in an English textbook is expanding your vocabulary. In Unit 2, students will encounter words related to daily routines, time expressions, and goal-setting. To enhance your vocabulary, consider creating flashcards, using online vocabulary-building tools, or engaging in daily vocabulary practice. By regularlyreviewing and using new words in context, you can improve your retention and comprehension.2. Grammar Practice:Grammar plays a significant role in language learning and communication. In Unit 2, students will learn about verb tenses, adverbs of frequency, and time expressions. To master these grammar concepts, it is important to practice regularly through exercises, quizzes, and writing assignments. Consider using grammar workbooks, online resources, or language learning apps to reinforce your understanding of grammar rules and structures.3. Speaking and Listening Skills:Improving your speaking and listening skills is essential for communication in English. In Unit 2, students will have opportunities to practice speaking about daily routines, time management, and goals. To enhance your speaking and listening skills, consider participating in group discussions, role-plays, or language exchange programs. Additionally, listening to English podcasts, watching videos, or engaging in conversation with native speakers can help you improve your listening comprehension and pronunciation.4. Writing Tasks:Writing tasks are an integral part of any language learning curriculum. In Unit 2, students will be required to write essays, journal entries, and goal-setting plans. To excel in writing tasks, it is important to practice different types of writing, such as descriptive, narrative, and argumentative writing. Consider using writing prompts, journaling, or seeking feedback from teachers or peers to improve your writing skills and accuracy.5. Time Management:Effective time management is key to success in Unit 2 and beyond. To maximize your study time and productivity, create a study schedule, prioritize tasks, and set realistic goals. Break down your study sessions into manageable chunks, take regular breaks, and avoid procrastination. By staying organized and disciplined in your study routine, you can optimize your learning experience and achieve high scores in Unit 2.Conclusion:Mastering Unit 2 of the 2024 edition of English lower volume requires dedication, practice, and strategic study habits. By expanding your vocabulary, practicing grammar, honing your speaking and listening skills, improving your writing tasks, andmanaging your time effectively, you can excel in this unit and achieve high scores. Remember to stay motivated, seek help when needed, and be consistent in your study efforts. With the right strategies and mindset, you can succeed in Unit 2 and progress confidently in your English language learning journey.。

2023年一月全国新高考卷一浙江英语作文

2023年一月全国新高考卷一浙江英语作文全文共3篇示例，供读者参考篇12023 National College Entrance Examination Paper 1 Zhejiang English CompositionSection A: WritingDirections: For this part, you are allowed 30 minutes to write a short essay on the topic of Environmental Protection: Everyone’s Responsibility. You should write at least 150 words following the outline given below.1. 人类对环境的破坏现象日益严重2. 环境问题对我们的生活和健康造成了负面影响3. 作为每个人，我们应该怎样保护环境Environmental Protection: Everyone’s ResponsibilityIn recent years, the issue of environmental pollution has become increasingly severe. With the rapid development of industry and urbanization, human activities have caused extensive damage to the environment. The air we breathe is contaminated, the water we drink is polluted, and the land welive on is degraded. These environmental problems not only endanger wildlife but also pose serious threats to our health and well-being.As individuals, it is our responsibility to protect the environment for ourselves and future generations. We can start by adopting environmentally friendly behaviors in our daily lives, such as reducing waste, conserving energy, and recycling materials. We can also participate in environmental cleanup activities and support eco-friendly initiatives in our communities. By taking small steps to protect the environment, we can make a big impact on the health of our planet.In conclusio n, environmental protection is everyone’s responsibility. It is up to each of us to take action and make a difference in preserving our natural resources and safeguarding the environment for future generations. Let us work together to create a cleaner, healthier, and more sustainable world for all.篇22023 January National College Entrance Examination Paper 1 Zhejiang English CompositionTopic: The Importance of Cultural Exchange in a Globalized WorldIn today's globalized world, cultural exchange plays a crucial role in promoting mutual understanding and cooperation among nations. The exchange of cultural ideas, beliefs, and practices not only enriches our lives but also fosters international harmony and cooperation. In this essay, I will discuss the importance of cultural exchange and how it can contribute to a more peaceful and interconnected world.Firstly, cultural exchange helps break down stereotypes and prejudices that often lead to conflicts and misunderstandings between different cultures. By learning about and appreciating the customs, traditions, and values of other cultures, individuals can develop a greater sense of empathy and respect for diversity. This, in turn, can help build bridges between people from different backgrounds and create a more inclusive and tolerant society.Secondly, cultural exchange promotes economic growth and development by fostering cross-cultural collaborations and partnerships. When people from different cultures come together to share ideas, knowledge, and resources, they can create innovative solutions to global challenges and drive economic progress. By fostering a culture of openness and cooperation, cultural exchange can help businesses thrive in aglobal marketplace and create new opportunities for growth and prosperity.Furthermore, cultural exchange contributes to the preservation and promotion of cultural heritage and traditions. By sharing their cultural practices and traditions with others, communities can ensure that their unique identity and heritage are preserved and celebrated for future generations. This not only helps promote cultural diversity but also fosters a sense of pride and belonging among individuals and communities.In conclusion, cultural exchange is vital for promoting mutual understanding, cooperation, and respect among nations in a globalized world. By embracing cultural diversity and engaging in cross-cultural dialogue, we can build a more peaceful, inclusive, and interconnected world for future generations to enjoy. It is essential for individuals, communities, and nations to actively participate in cultural exchange activities to create a more harmonious and prosperous future for all.篇32023 January National College Entrance Examination Paper 1 Zhejiang English CompositionSection ADirections: Write an essay of 800 words on the following topic.Topic: The impact of technology on educationIn recent years, technology has been transforming every aspect of our lives, and education is no exception. With the advancement of technology, the traditional way of teaching and learning has been revolutionized. In this essay, I will discuss the positive and negative impacts of technology on education.Firstly, technology has greatly improved the accessibility of education. With the internet, students can access a vast amount of information online, which allows them to learn at their own pace and in their own time. Online courses and educational websites provide students with the opportunity to learn from anywhere in the world. This has made education more flexible and convenient for everyone.Secondly, technology has enhanced the efficiency of learning. Interactive software and educational apps engage students in the learning process and make learning more fun and engaging. Virtual reality technology enables students to have immersive learning experiences and helps them better understand complex concepts. Moreover, technology has made it easier for teachers to track students' progress and providepersonalized feedback, thus improving the effectiveness of teaching.However, technology also has its drawbacks. One of the main concerns is the overreliance on technology in education. Some students may become too dependent on technology for learning, which can hinder their critical thinking andproblem-solving skills. Additionally, the digital divide between students who have access to technology and those who do not can widen educational inequalities.In conclusion, technology has brought about significant changes to education, both positive and negative. It is important for educators to embrace technology and use it wisely to enhance the learning experience for students. By striking a balance between traditional teaching methods and technology, we can ensure that technology serves as a tool to enrich education rather than a distraction.Section BDirections: Write an essay of 1200 words on the following topic.Topic: The importance of foreign language educationIn today's globalized world, the ability to communicate in a foreign language is more important than ever. Foreign language education plays a crucial role in preparing students for the challenges and opportunities of the 21st century. In this essay, I will discuss the importance of foreign language education.Firstly, learning a foreign language opens up a world of opportunities. In an increasingly interconnected world, knowing a foreign language can give individuals a competitive edge in the job market. Many multinational companies value employees who can speak multiple languages, as it enables them to communicate with clients and partners from different countries. Additionally, knowing a foreign language can enhance cultural awareness and empathy, as it allows individuals to better understand and appreciate other cultures.Secondly, foreign language education can improve cognitive abilities. Studies have shown that learning a foreign language can enhance memory, problem-solving skills, and creativity. It can also delay the onset of cognitive decline in old age. Moreover, learning a foreign language can improve multitasking abilities and decision-making skills, as it requires individuals to switch between languages and make quick decisions.Furthermore, foreign language education promotes global citizenship and intercultural understanding. By learning a foreign language, students can develop a deeper appreciation for diversity and learn to communicate with people from different backgrounds. This can help build bridges between cultures and promote peace and cooperation on a global scale.In conclusion, foreign language education is essential for preparing students for the challenges of a globalized world. By learning a foreign language, students can enhance their career prospects, improve cognitive abilities, and promote intercultural understanding. It is important for educators to prioritize foreign language education and provide students with the resources and support they need to succeed in a multilingual world.。

初中以保护地方方言为主写英语作文

初中以保护地方方言为主写英语作文全文共3篇示例，供读者参考篇1Protecting local dialects in middle schoolsAs globalization continues to spread, the use of local dialects is gradually declining, especially among younger generations. In order to preserve and protect these valuable aspects of our cultural heritage, it is important for middle schools to take a proactive role in promoting the use of local dialects among students.Local dialects are an important part of our cultural identity and heritage. They reflect the unique history, traditions, and perspectives of a particular region or community. However, many local dialects are at risk of disappearing as younger generations increasingly use standardized forms of language in their daily lives. This loss of local dialects not only diminishes our cultural diversity, but also erodes our understanding of our own history and identity.Middle schools play a crucial role in shaping the language habits of young people. By incorporating the teaching and use oflocal dialects into the curriculum, schools can help students develop a stronger connection to their cultural roots. This can be done through language classes, cultural activities, and promoting the use of local dialects in everyday conversations.In addition to preserving our cultural heritage, there are many benefits to promoting the use of local dialects in middle schools. Studies have shown that bilingualism and proficiency in regional languages can improve cognitive skills, enhance communication abilities, and foster a sense of belonging to a community. By encouraging students to use local dialects, schools can help them develop a more comprehensive understanding of language and culture.Furthermore, promoting the use of local dialects in middle schools can help bridge the generation gap between older and younger members of the community. By teaching students to appreciate and use their local dialects, schools can facilitate communication and understanding between different age groups, fostering a stronger sense of unity and cohesion within the community.To effectively protect local dialects in middle schools, it is important to implement a comprehensive strategy that includes curriculum development, teacher training, and communityinvolvement. Schools should work closely with local language experts and cultural organizations to develop appropriate teaching materials and methods for promoting the use of local dialects. Teachers should receive training on how to incorporate local dialects into their lessons and encourage students to use them in their daily interactions.Community involvement is also essential in protecting local dialects in middle schools. Schools should collaborate with local cultural institutions, community leaders, and parents to raise awareness about the importance of preserving local dialects and to create opportunities for students to practice and use them outside of the classroom.In conclusion, protecting local dialects in middle schools is vital for preserving our cultural heritage, fostering a sense of belonging and community, and enhancing the cognitive and communication skills of students. By incorporating the teaching and use of local dialects into the curriculum, schools can help ensure that these valuable aspects of our cultural identity continue to thrive for future generations.篇2Protecting local dialects in junior high schoolLocal dialects are an important part of our cultural heritage. They represent the unique history and traditions of a region, and are a key element in preserving our cultural diversity. However, with the rapid spread of globalization and the dominance of standard languages such as English, many local dialects are at risk of disappearing.In junior high schools, there should be more emphasis on protecting and promoting local dialects. By exposing students to their local dialects from a young age, we can help instill a sense of pride and appreciation for their linguistic heritage. This can help ensure that future generations continue to speak and preserve these unique forms of communication.One way to protect local dialects in junior high schools is to include them in the curriculum. Schools should offer classes or workshops that focus specifically on the local dialect of the region. This can help students develop an understanding of the grammar, vocabulary, and pronunciation of their dialect, as well as learn about its history and cultural significance.Furthermore, schools can organize cultural events and activities that showcase the local dialect. This can include performances, storytelling sessions, or language competitions that highlight the beauty and richness of the dialect. By creatinga platform for students to engage with their dialect in a fun and interactive way, we can help foster a sense of identity and connection to their linguistic roots.In addition to formal education, families and communities also play a crucial role in protecting local dialects. Parents should encourage their children to use their dialect at home and in their daily interactions. Community organizations can also organize language revitalization programs or projects that support the preservation of local dialects.Overall, protecting local dialects in junior high schools is essential for preserving our cultural heritage and promoting linguistic diversity. By incorporating local dialects into the curriculum, organizing cultural events, and engaging families and communities, we can help ensure that these unique forms of communication continue to thrive for generations to come. Let us work together to protect and celebrate our linguistic heritage!篇3Protecting local dialects in middle schoolsIntroductionAs globalization grows rapidly, some traditional cultural characteristics are gradually disappearing, such as local dialects.Local dialects are colorful and rich in cultural connotations, reflecting the unique charm of a region. However, with the popularity of standardized Mandarin Chinese, many young people, especially students in middle schools, are gradually losing their ability to speak and understand their local dialects. It is crucial for middle schools to take action to protect and promote local dialects.Preservation of local dialectsFirstly, middle schools should include local dialects as a compulsory course in the curriculum. By learning local dialects in a systematic and organized way, students can understand the meanings behind the words and expressions, as well as the history and culture related to the language. This will not only help students develop a sense of belonging to their hometown but also broaden their cultural horizon.Secondly, middle schools can organize activities such as dialect competitions, storytelling sessions in local dialects, and field trips to places where the local dialect is spoken widely. These activities will create an immersive learning environment for students and enhance their interest in learning and using local dialects.Thirdly, schools can invite local dialect experts and elders to give lectures and workshops on the importance of preserving local dialects. By sharing their knowledge and experiences, students can better understand the significance of local dialects and become more motivated to protect and promote them.Benefits of protecting local dialectsProtecting local dialects in middle schools has several benefits. Firstly, it helps preserve the cultural heritage of a region. Local dialects are an essential part of a region's cultural identity, and by preserving them, we can ensure that future generations can continue to enjoy and appreciate their cultural heritage.Secondly, learning local dialects can enhance students' language skills and cognitive abilities. Research has shown that bilingualism can improve cognitive functions such asproblem-solving, multitasking, and creativity. By learning and using local dialects, students can develop these cognitive abilities and become more proficient in language learning.Thirdly, protecting local dialects can promote diversity and inclusivity in society. Every language and dialect has its unique beauty and value, and by respecting and preserving them, we can create a more inclusive and diverse society where people of different language backgrounds can coexist harmoniously.ConclusionIn conclusion, protecting local dialects in middle schools is essential for preserving cultural heritage, enhancing language skills, and promoting diversity and inclusivity. Middle schools play a crucial role in ensuring that local dialects are protected and promoted, and by taking appropriate measures, we can ensure that future generations can continue to enjoy the beauty and richness of local dialects. Let's work together to protect and promote our local dialects!。

OMB-PER-488 IEEE-488 接口板说明书

D4-11The OMB-PER-488 board forIBM PC and compatibles converts a PC or a PC/AT into anIEEE.2-compliant controller. The OMB-PER-488 includes a half-size interface board with DOS and/ or Windows driver software. Thesoftware drivers included with each board are fully and independently documented, ensuring easy start-up and usability.SOFTWARE DRIVERSThe OMB-PER-488 is available with several driver packages; the base driver compatible with all major programming languages andspreadsheets; a high performance driver with subroutine-style interface that supports C, Pascal and QuickBasic; and a Windows dynamic link library (DLL) with C and VisualBasic support.DOS DEVICE DRIVER SOFTWAREThe DOS driver software for the OMB-PER-488 features powerful HP-style commands to simplify IEEE-488 instrument control and application program development,by transparently executing multiple low-level bus management tasks and shielding the operator from the complexities of IEEE-488 protocol.They can be used in application programs written in any popular software language. PC serial (COM) port support is standard,enabling direct serial communication from programming languages.Asynchronous communications is also supported, allowing a program to execute foreground tasks while the driver concurrently controls multiple background I/O tasks. Data is transferred simultaneously,via DMA or interrupts, on multiple IEEE-488 and/or serial ports.Automatic program vectoring to service routines for Basic, C andߜPC and AT Compatible,with 8-Bit Slotߜ330 kbyte/sec Data Transfer RateߜFull IEEE-488.2 Support ߜIncludes DOS and Windows DriversߜEasily Programmable via Familiar HP-Style CommandsߜCompatible withPopular Graphics and Analysis SoftwareIEEE-488 Interface BoardBoard and Software for ISA BusOMB-PER-488$499Basic UnitOMB-PER-488for IBMPC,and compatibles, $395D4IEEE-488 CONTROLLERS AND COMMUNICATION ADAPTORSPascal programs is also supported.Other features include interactive instrument control from the DOS prompt, and serial and parallel port redirection (for applications that direct printer/plotter output through the BIOS).Windows Dynamic Link Library (DLL)The Windows DLL supplied with the OMB-PER-488 board allows users to integrate IEEE 488.2 control into Microsoft Windows applications. It provides HP-style IEEE-488commands for high and low-level IEEE-488.1 bus control, and offers additional commands that support the IEEE-488.2 standard. Thesoftware also conforms to Windows’standard application architecture,allowing Windows to link with the IEEE-488 driver during run time,and to manage memory requirements, interrupts andmessages. Windows multitasking capability allows multiple testapplications to concurrently access the same network of IEEE-488instruments. This software automatically arbitratesSpecificationsOMB-PER-488IEEE Controller Device:NEC µPD 7210Max Transfer Rate:330 kbytes/sec Dimensions: occupies one PC-compatible (ISA) short or long slot Connector: accepts standard IEEE-488 connector with metric studsPower: +5V @ 650 mA max from PCEnvironment: 0 to 70°C, 0 to 95% RHDMA: channels 0, 1, 2 and 3,jumper-selectableInterrupts: IRQ 2, 3, 4, 5, 6 or 7IEEE Base I/O Addresses:&h02E1, &h22E1, &h42E1 or &h62E1Multiple Board Support:up to four boards may be installed,sharing a single DMA channel and interrupt lineOrdering Example: OMB-PER-488 interface, and OMEGACARE SM 1-yearextended warranty for OMB-PER-488 (adds 1 year to standard 1-year warranty),with OMBX-CA-7-3 cable, $499 + 39 +100 = $638.D4-12CANADA www.omega.ca Laval(Quebec) 1-800-TC-OMEGA UNITED KINGDOM www. Manchester, England0800-488-488GERMANY www.omega.deDeckenpfronn, Germany************FRANCE www.omega.frGuyancourt, France088-466-342BENELUX www.omega.nl Amstelveen, NL 0800-099-33-44UNITED STATES 1-800-TC-OMEGA Stamford, CT.CZECH REPUBLIC www.omegaeng.cz Karviná, Czech Republic596-311-899TemperatureCalibrators, Connectors, General Test and MeasurementInstruments, Glass Bulb Thermometers, Handheld Instruments for Temperature Measurement, Ice Point References,Indicating Labels, Crayons, Cements and Lacquers, Infrared Temperature Measurement Instruments, Recorders Relative Humidity Measurement Instruments, RTD Probes, Elements and Assemblies, Temperature & Process Meters, Timers and Counters, Temperature and Process Controllers and Power Switching Devices, Thermistor Elements, Probes andAssemblies,Thermocouples Thermowells and Head and Well Assemblies, Transmitters, WirePressure, Strain and ForceDisplacement Transducers, Dynamic Measurement Force Sensors, Instrumentation for Pressure and Strain Measurements, Load Cells, Pressure Gauges, PressureReference Section, Pressure Switches, Pressure Transducers, Proximity Transducers, Regulators,Strain Gages, Torque Transducers, ValvespH and ConductivityConductivity Instrumentation, Dissolved OxygenInstrumentation, Environmental Instrumentation, pH Electrodes and Instruments, Water and Soil Analysis InstrumentationHeatersBand Heaters, Cartridge Heaters, Circulation Heaters, Comfort Heaters, Controllers, Meters and SwitchingDevices, Flexible Heaters, General Test and Measurement Instruments, Heater Hook-up Wire, Heating Cable Systems, Immersion Heaters, Process Air and Duct, Heaters, Radiant Heaters, Strip Heaters, Tubular HeatersFlow and LevelAir Velocity Indicators, Doppler Flowmeters, LevelMeasurement, Magnetic Flowmeters, Mass Flowmeters,Pitot Tubes, Pumps, Rotameters, Turbine and Paddle Wheel Flowmeters, Ultrasonic Flowmeters, Valves, Variable Area Flowmeters, Vortex Shedding FlowmetersData AcquisitionAuto-Dialers and Alarm Monitoring Systems, Communication Products and Converters, Data Acquisition and Analysis Software, Data LoggersPlug-in Cards, Signal Conditioners, USB, RS232, RS485 and Parallel Port Data Acquisition Systems, Wireless Transmitters and Receivers。

mystudyhabits英语作文

mystudyhabits英语作文1. My study habits are an important part of my daily routine.2. I always start my day by reviewing the material I learned the day before.3. This helps to reinforce my memory and ensure that the information sticks in my mind.4. I prefer to study in a quiet and well-lit environment.5. It helps me to focus and retain information more effectively.6. I like to break up my study sessions into smaller, manageable chunks.7. This prevents me from feeling overwhelmed and allows me to stay more engaged with the material.8. I also find it helpful to take short breaks in between study sessions.9. This gives my mind a chance to rest and recharge before diving back into the material.10. When studying, I like to use different resources such as textbooks, online articles, and videos.11. This provides me with a well-rounded understanding of the subject matter.12. I also make use of flashcards to help memorize important facts and definitions.13. Additionally, I find it helpful to discuss the material with classmates or friends.14. This allows me to gain new perspectives and insights on the topic.15. I make sure to set specific goals for each study session.16. This helps me stay on track and makes my study time more productive.17. I find that it's important to be organized when it comes to studying.18. Keeping my notes and materials in order makes iteasier to access information when I need it.19. Prioritizing my tasks and assignments helps me stay focused on what needs to be done first.20. I make use of a planner or calendar to stay on top of deadlines and due dates.21. I also try to eliminate distractions while studying, such as turning off my phone or finding a quiet place to work.22. It's important for me to stay motivated while studying.23. I remind myself of the long-term goals and rewardsthat come from putting in the effort.24. I also like to reward myself after completing a study session or finishing a challenging assignment.25. Setting aside time for relaxation and hobbies is important for maintaining a healthy balance.26. I find that exercise helps to clear my mind and reduce stress.27. It's important for me to get enough sleep each night.28. I find that I am more focused and alert when I am well-rested.29. I also pay attention to my diet, as eating well can have a positive impact on my energy levels and concentration.30. I make sure to ask for help when I need it.31. Whether it's from a teacher, tutor, or classmate, getting clarification on difficult material is crucial to my understanding.32. I find that teaching the material to someone else can solidify my own understanding of it.33. It helps me retain the information and identify any gaps in my knowledge.34. I make use of study groups to collaborate and learn from others.35. Discussing the material with peers can help me see things from different perspectives and gain new insights.36. I also take advantage of resources such as online forums and study guides.37. They can provide additional support and explanations when I need them.38. I like to challenge myself with practice questions and quizzes.39. Testing my knowledge helps me identify areas that need further review and reinforcement.40. I find that creating a study schedule and sticking to it is essential for staying on top of my coursework.41. It allows me to allocate enough time for each subject and avoid last-minute cramming.42. I also make sure to review and revise my notes regularly to keep the information fresh in my mind.43. Seeking feedback from teachers and professors can help me identify areas of improvement.44. Constructive criticism helps me grow and develop my skills.45. I find that staying positive and maintaining a growth mindset is important for overcoming challenges and setbacks.46. I remind myself that mistakes are opportunities to learn and improve.47. I like to use different study techniques, such as mind mapping, to help me process and organize information.48. It helps me better understand the connections between different concepts.49. I find it helpful to set aside specific times for studying different subjects.50. This prevents me from feeling overwhelmed and helps me stay focused on one task at a time.51. Creating a conducive study environment is crucial for my productivity.52. I make sure to keep my workspace tidy and free of distractions.53. I also find it helpful to listen to calming music while studying, as it can help me concentrate and relax.54. I set clear and achievable goals for each study session.55. This helps me stay motivated and makes it easier to measure my progress.56. It's important for me to take care of my physical and mental well-being while studying.57. I take regular breaks to stretch and move around to avoid feeling stiff or fatigued.58. I also make sure to practice mindfulness and relaxation techniques to reduce stress.59. Taking the time to reflect on my learning progress helps me identify areas for improvement.60. I make use of reflection journals to document my thoughts and experiences with different study methods.61. Seeking out new learning resources and materials keeps my study sessions fresh and engaging.62. This can include books, online courses, or educational podcasts.63. I make sure to pace myself and avoid cramming before exams or deadlines.64. I find that spreading out my study sessions over time helps me retain information better.65. Working with a study partner can be beneficial for discussing challenging concepts and keeping each other accountable.66. I find that teaching the material to someone else can help reinforce my own understanding of it.67. I seek out opportunities for hands-on learning and practical application of the material I'm studying.68. This can include conducting experiments,participating in group projects, or taking on internships.69. I make use of online tools and resources to supplement my learning, such as educational websites and interactive tutorials.70. I find that creating a study plan for each subject helps me stay organized and on track with my learning goals.71. I make sure to allocate enough time for each subject based on its level of difficulty and my familiarity with the material.72. It's important for me to continuously review and practice previous concepts while learning new material.73. This helps me reinforce my understanding and prevents me from forgetting important information.74. I like to vary my study locations to keep things interesting and prevent monotony.75. This can include studying at a library, coffee shop, or outdoors in nature.76. I find that setting realistic expectations for my studies helps me manage my time more effectively.77. I make sure to break down larger tasks into smaller, manageable steps to avoid feeling overwhelmed.78. Avoiding multitasking and focusing on one subject ata time helps me retain information better.79. I make use of mnemonic devices and memory techniques to help me remember important information.80. This can include creating acronyms, visual aids, or using rhymes to aid in memory recall.81. I find that setting specific, measurable, achievable, relevant, and time-bound (SMART) goals for my studies helps me stay on track.82. Practicing self-discipline and establishing a routine for my studies helps me maintain consistency and avoid procrastination.83. I make use of study apps and digital tools to help me stay organized and track my progress.84. Using online resources such as Khan Academy or Coursera can supplement my learning and provide additional support when needed.85. I find that taking regular breaks during my study sessions helps me maintain focus and prevent burnout.86. Practicing active recall, such as self-testing or teaching the material to someone else, helps me retain information more effectively.87. I make use of practice exams and past papers to familiarize myself with the format and structure of assessments.88. Seeking feedback from instructors and peers helps me identify areas for improvement and gain new insights.89. I find that reviewing and summarizing the material in my own words helps me gain a deeper understanding of the subject matter.90. Creating a study schedule and setting aside dedicated time for each subject ensures that I cover all the necessary material.91. I make use of study aids such as highlighters, sticky notes, and flashcards to help me organize and retain information.92. I find that setting specific goals for each study session helps me stay motivated and focused.93. Reflecting on my learning process and adapting my study strategies based on the results helps me improve over time.94. Using technology, such as recording lectures or accessing online resources, can enhance my learning experience.95. Employing the Pomodoro technique, which involves studying for 25 minutes and then taking a 5-minute break, helps me stay focused and productive.96. Staying consistent with my study routine helps me make steady progress and avoid last-minute cramming.97. I make sure to challenge myself with difficult problems and questions to deepen my understanding of the material.98. I seek out opportunities for real-world application of the concepts I'm studying to solidify my understanding.99. Tracking my study time and progress using a planner or app helps me stay accountable and organized.100. I find that staying curious and asking questions about the material helps me engage with the subject matter more deeply.101. Prioritizing my mental health and well-being alongside my studies is a crucial part of my study habits.102. I make sure to take breaks when needed and practice self-care to avoid burnout.103. Incorporating self-reflection into my study routine helps me identify areas for improvement and set new goals.104. Engaging with others in group discussions or study sessions can provide new perspectives and insights on the material.105. I find that setting aside time for leisureactivities and hobbies helps me recharge and maintain a healthy balance.106. Regularly revisiting and reinforcing previous learning to keep the information fresh in my mind is an important aspect of my study habits.107. Lastly, staying adaptable and open-minded in my approach to studying allows me to continually grow and improve as a learner.。

2022安徽普高专升本英语考试真题及答案

2022安徽普高专升本英语考试真题及答案全文共3篇示例，供读者参考篇12022 Anhui High School Proficiency Test for College English Exam Questions and AnswersPart I: Reading Comprehension (40 points)Directions: There are four passages in this part. Each passage is followed by five questions or unfinished statements. For each of them, there are four possible answers marked A, B, C, and D. Choose the best answer and mark the corresponding letter on Answer Sheet 1.Passage 1Questions 1-5 refer to the following passage.Football is a popular sport in many countries around the world, but its origins can be traced back to England in themid-19th century. The game of football as we know it today evolved from various forms of ball games played by people in different parts of England.1. Where did football originate?A. ChinaB. JapanC. EnglandD. Brazil2. When did football originate?A. 18th centuryB. 19th centuryC. 20th centuryD. 21st century3. What country is known for its football heritage?A. GermanyB. ItalyC. BrazilD. France4. How has football evolved over time?A. It has become less popularB. It has stayed the sameC. It has become more strategicD. It has become less competitive5. Why is football considered a global sport?A. It is only played in EnglandB. It is played in many countries around the worldC. It is not popular outside of EuropeD. It is only played by menAnswer Key:1. C2. B3. C4. C5. BPart II: Cloze Test (10 points)Directions: There are 20 blanks in the following passage. For each blank, there are four choices marked A, B, C, and D. Choose the best answer and mark the corresponding letter on Answer Sheet 1.Passage 1During the summer, my family and I often go camping in the mountains. It's a great way to (1) _____ some quality time together and enjoy the beauty of nature. We always bring plenty of food and drinks, as well as camping gear like tents and sleeping bags. (2) _____ the daytime, we like to go hiking and explore the area around (3) _____ campsite. We often come across (4) _____ wildlife, such as deer and rabbits. It's a wonderful experience to be (5) _____ close to nature.1. A. spendB. takeC. makeD. have2. A. AtB. OnC. InD. During3. A. ourB. itsC. theirD. your4. A. wildB. wildnessC. wildernessD. wildlife5. A. thereforeB. soC. suchD. veryAnswer Key:1. A2. D3. A4. D5. CPart III: Writing (30 points)Directions: For this part, you are supposed to write a composition of about 150 words on the following topic: "The Importance of Learning a Foreign Language." You should write neatly on ANSWER SHEET 2.Answer:Learning a foreign language is not only beneficial but also essential in today's globalized world. It opens up new opportunities for communication, travel, and employment. Being able to speak a second language fluently can help individuals advance in their careers and build relationships with people from different cultures.Moreover, learning a foreign language can enhance cognitive abilities such as problem-solving, critical thinking, and creativity. It can also improve memory and multitasking skills. Overall, acquiring a foreign language can broaden one's horizons and improve overall mental agility.In conclusion, learning a foreign language is a valuable skill that can enrich one's life in numerous ways. It is an investment that pays off in personal growth, cultural understanding, and career advancement. Therefore, it is important to embrace the challenge of learning a new language and reap the benefits that come with it.篇22022 Anhui High School College Entrance Examination English Test Questions and AnswersPart I: Reading Comprehension (共20分)Section A: Non-factual InformationDirections: For this section, you are required to read a passage and answer questions based on the information provided. Each question has four possible choices A, B, C, and D. You should select the best choice and mark the corresponding letter on your answer sheet.Passage OneQuestions 1-5The Rise of Digital NomadsDigital nomads are individuals who use telecommunications technologies to earn a living and conduct their life in a nomadic manner. Such workers often work remotely from foreign countries, coffee shops, public libraries, co-working spaces, or recreational vehicles. Digital nomads are a type of people who use digital technologies to earn a living and, more generally, conduct their life in a nomadic manner.According to a recent survey conducted by MBO Partners, 7.3 million people classify themselves as digital nomads in the U.S. alone. With the rise of remote working, it is predicted that this number will continue to increase over the coming years. Digital nomads enjoy the freedom and flexibility that comes with their lifestyle, but they also face challenges such as a lack of job security and social isolation.1. What is the main idea of this passage?A. The Rise of Digital NomadsB. The Challenges Faced by Digital NomadsC. The Future of Remote WorkingD. The Benefits of Working in Coffee Shops2. According to the passage, how many digital nomads are there in the U.S.?A. 7.3 millionB. 1 millionC. 10 millionD. 5 million3. Why do digital nomads face challenges according to the passage?A. Lack of technologyB. Lack of job security and social isolationC. Lack of moneyD. Lack of opportunities4. What is one place where digital nomads often work remotely from?A. Their homesB. SchoolsC. HospitalsD. Cafes5. Which word best describes the lifestyle of digital nomads?A. TraditionalB. ImmovableC. NomadicD. CorporatePassage TwoQuestions 6-10The Benefits of BilingualismThere are several benefits to being bilingual. Studies have shown that bilingual individuals have better cognitive abilities and improved problem-solving skills. Bilingualism can also lead to increased job opportunities and higher salaries. In addition, learning a second language can help improve memory and delay the onset of cognitive diseases such as Alzheimer's.While there are many benefits to being bilingual, it can also be challenging. Those who are not fluent in both languages may struggle to communicate effectively in certain situations. However, the benefits of bilingualism far outweigh the challenges, making it a valuable skill to possess in today's globalized world.6. According to the passage, what are some benefits of being bilingual?A. Increased job opportunities and higher salariesB. Better cognitive abilities and improved problem-solving skillsC. Improved memory and delayed onset of cognitive diseasesD. All of the above7. What can be a challenge for those who are not fluent in both languages?A. Communicating effectivelyB. Finding a jobC. Solving problemsD. None of the above8. Why is bilingualism considered a valuable skill in today's world?A. It can help improve memoryB. It can lead to job opportunitiesC. It can delay the onset of cognitive diseasesD. It allows for better communication in a globalized world9. What do studies show about bilingual individuals?A. They have worse cognitive abilitiesB. They have lower salariesC. They are less likely to develop cognitive diseasesD. They have limited job opportunities10. What is the main idea of this passage?A. The Challenges of Being BilingualB. The Benefits of BilingualismC. The Importance of Cognitive DiseasesD. The Development of Job OpportunitiesPart II: Writing (共30分)In this section, you are required to write an essay on a given topic. You should write at least 200 words and include examples to support your arguments.Essay Question:Some people believe that traditional education is no longer necessary in today's digital age. Do you agree or disagree with this statement?Sample Answer:In today's digital age, traditional education is still a valuable and necessary part of the learning process. While technology has certainly changed the way we access information and communicate, it has not rendered traditional education obsolete.One of the key benefits of traditional education is the opportunity for in-person interaction with teachers and peers. This allows for a more personalized and interactive learning experience, where students can ask questions, engage in discussions, and receive immediate feedback. These interactions are essential for social and emotional development, as well as for building critical thinking and problem-solving skills.Furthermore, traditional education provides a structured and comprehensive curriculum that covers a wide range of subjects and topics. This ensures that students receive a well-rounded education and are prepared for future academic and professional success. While technology can supplement and enhance the learning process, it cannot replace the depth and breadth of knowledge that traditional education provides.In conclusion, traditional education remains relevant and necessary in today's digital age. While technology has its place in the learning process, it cannot fully replace the value ofin-person interactions, structured curriculum, and comprehensive education that traditional schools offer.Overall, the 2022 Anhui High School College Entrance Examination English test provided a variety of questions that tested students' reading comprehension and writing skills. Thequestions required critical thinking and the ability to communicate effectively in English. Students who prepared well and practiced regularly were likely to perform well on the exam. The test aimed to assess students' proficiency in English and their ability to think critically and articulate their thoughts clearly.篇32022 Anhui Provincial High School Specialized Examination for Undergraduate Programs in English考试时间：2022年9月10日考试时长：120分钟本试卷共11页，共120分Part I Listening Comprehension(30 points)Section A (10 points)Directions: In this section, you will hear ten short conversations. At the end of each conversation, a question will be asked about what was said. The conversations and the questions will be spoken only once. After you hear a conversation and the question about it, read the four possibleanswers on your paper, and decide which one is the best answer to the question you have heard.1. A. She is going out for lunch.B. She forgot her lunch.C. She has a meeting.D. She has finished her lunch.2. A. Sailing.B. Swimming.C. Fishing.D. Rowing.3. A. At the library.B. At the concert.C. At the gym.D. At the hotel.4. A. 20 dollars.B. 23 dollars.C. 30 dollars.D. 50 dollars.5. A. Tune the guitar.B. Paint a picture.C. Attend a concert.D. Play a computer game.6. A. She lost her key.B. She locked herself out.C. She forgot to lock the door.D. She broke her key.7. A. Downstairs.B. Upstairs.C. In the bathroom.D. In the living room.8. A. Books.B. Chairs.C. Beds.D. Desks.9. A. They like the music.B. They are neighbors.C. They are tired of the music.D. They don't like the music.10. A. The man should go to the bank.B. The man should take a taxi.C. The man should walk.D. The man should wait.Section B (10 points)Directions: In this section, you will hear four passages. At the end of each passage, you will hear four or five questions. After you hear a passage and the questions about it, read the four or five possible answers on your paper, and decide which one is the best answer to each question you have heard.Passage OneQuestions 11-13 are based on Passage One.11. A. Going on a trip.B. Sending a postcard.C. Cleaning the room.D. Playing games.12. A. It is sunny.B. It is rainy.C. It is snowy.D. It is windy.13. A. At a restaurant.B. In a hotel.C. At the beach.D. On a street.Passage TwoQuestions 14-16 are based on Passage Two.14. A. Excited.B. Nervous.C. Confident.D. Anxious.15. A. Six hours.B. Seven hours.C. Eight hours.D. Nine hours.16. A. A doctor.B. An engineer.C. A lawyer.D. A teacher.Passage ThreeQuestions 17-20 are based on Passage Three.17. A. At a train station.B. At a bus stop.C. At an airport.D. At a subway station.18. A. She missed the train.B. She arrived late at the station.C. She lost her ticket.D. She misplaced her luggage.19. A. Two.B. Three.C. Four.D. Five.20. A. How long the trip is.B. The train schedule.C. The weather forecast.D. The arrival time.Passage FourQuestions 21-25 are based on Passage Four.21. A. In a café.B. In a library.C. In a bookstore.D. In a park.22. A. American.B. British.C. Chinese.D. French.23. A. He's a novelist.B. He's a scientist.C. He's an artist.D. He's a musician.24. A. Because he admires the writer.B. Because he needs to buy a book.C. Because he likes the coffee there.D. Because he wants to meet his friend.25. A. The bookshop.B. The café.C. The park.D. The library.Part II Reading Comprehension (40 points)Section A (30 points)Directions: In this section, there are four passages. Each passage is followed by several questions or unfinished statements. For each of them, there are four choices marked A, B,C, and D. You should decide on the best answer to each question or unfinished statement by marking the corresponding letter on the Answer Sheet.Passage OneQuestions 26-30 are based on Passage One.26. According to the passage, what was the main cause of the fire in the library?A. A cigarette butt.B. An overcrowded bookshelf.C. A short circuit.D. A leaking gas pipe.27. How many people were injured in the fire?A. Three.B. Four.C. Five.D. Six.28. What did the firefighters use to put out the fire?A. Water.B. Fire extinguishers.C. Sand.D. Blankets.29. What happened to the wooden bookshelves?A. They were damaged completely.B. They were destroyed.C. They were burnt to ashes.D. They were salvaged.30. What did the library staff do to prevent such accidents in the future?A. Installed smoke alarms.B. Reduced the number of books.C. Conducted fire drills.D. Reorganized the shelves.Passage TwoQuestions 31-35 are based on Passage Two.31. What was the weather like when the couple went hiking?A. Snowing.B. Raining.C. Sunny.D. Windy.32. How did the couple feel about the scenery?A. Beautiful.B. Uninteresting.C. Boring.D. Ugly.33. Who saved the couple when they got lost in the woods?A. A park ranger.B. A tour guide.C. A dog.D. Themselves.34. What did the couple do after they were rescued?A. Invited the rescuer for dinner.B. Filed a complaint with the park.C. Finished their hiking trip.D. Stayed at a hotel.35. What can we learn from the passage?A. The couple were experienced hikers.B. The couple didn't follow safety rules.C. The couple underestimated the difficulty of the hike.D. The couple were well-prepared for the hike. Passage ThreeQuestions 36-40 are based on Passage Three.36. What is the main topic of the passage?A. The benefits of running.B. The history of marathons.C. The techniques of jogging.D. The joy of long-distance running.37. How did the author feel about running at first?A. It was exhausting.B. It was boring.C. It was enjoyable.D. It was painful.38. What motivated the author to start running?A. A friend's recommendation.B. A doctor's advice.C. A desire to lose weight.D. A need for a new hobby.39. What is the author's running routine now?A. One mile every day.B. Five miles every day.C. Ten miles every week.D. A marathon every year.40. What does the author suggest at the end of the passage?A. Everyone should run.B. Running is not for everyone.C. Running is a healthy exercise.D. Running requires dedication.Passage FourQuestions 41-45 are based on Passage Four.41. According to the passage, what is the main cause of obesity in children?A. Lack of exercise.B. Genetic factors.C. Eating too much junk food.D. Watching too much TV.42. How does the author suggest parents help their children stay healthy?A. Set a good example.B. Enroll them in sports.C. Take them to the gym.D. Limit their screen time.43. What is one of the side effects of childhood obesity?A. Poor eyesight.B. High blood pressure.C. Fast metabolism.D. Low self-esteem.44. What kind of food should children avoid, according to the passage?A. Fruits and vegetables.B. Sugary snacks.C. Lean protein.D. Whole grains.45. Why is childhood obesity considered a serious problem?A. It affects their academic performance.B. It leads to social isolation.C. It can cause health issues.D. It affects their physical appearance.Section B (10 points)Directions: In this section, you are going to read a short passage with ten questions. You should choose the best answer for each question by marking the corresponding letter on the Answer Sheet.Writing Skills (40 points)Part III Writing (40 points)Section A (10 points)Directions: In this section, you are going to read a passage with ten blanks. You are to choose the words that best fit into the blanks from the four choices given in the passage.Section B (30 points)Directions: Write an essay on the following topic in about 200 words.Topic: The Importance of Learning a Second LanguagePart IV Supplementary MaterialsⅠ. 拼音与字音Ⅱ. 单词拼写Ⅲ. 选词填空Ⅳ. 翻译Answer Key:1-5 BACBA 6-10 ABDDC 11-15 DBACC 16-20 CDBCA21-25 BCDAB 26-30 BDACD 31-35 CDBAB 36-40 BDACB41-45 ACBDCI hope the above sample provides a clear idea of what the 2022 Anhui Provincial High School Specialized Examination forUndergraduate Programs in English looks like. The aim of this document is to help students prepare effectively for the exam by familiarizing themselves with the format and types of questions they can expect. Good luck to all the students taking the exam!。

操作系统概念第六版重点部分中文答案

1.1 What are the three main purposes of an operat ing system?1 To provide an en vir onment for a computer user to execute programs on computerhardware in a convenient and ef ?cie nt manner.2 To allocate the separate resources of the computer as n eeded to solve the problemgive n. The allocati on process should be as fair and ef ?cie nt as possible.3 As a control program it serves two major functions: (1) supervision of the execution of user programs to preve nt errors and improper use of the computer, and (2) man age- ment of the operati on and con trol of I/O devices.环境提供者，为计算机用户提供一个环境，使得能够在计算机硬件上方便、高效的执行程序资源分配者，为解决问题按需分配计算机的资源，资源分配需尽可能公平、高效控制程序监控用户程序的执行，防止岀错和对计算机的不正当使用管理I/O设备的运行和控制1.2 List the four steps that are n ecessary to run a program on a completely dedicatedmachi ne.An swer: Gen erally, operati ng systems for batch systems have simpler requireme nts tha n for pers onal computers. Batch systems do not have to be con cer ned with in teract ing with a useras much as a personal computer. As a result, an operating system for a PC must be concernedwith resp onse time for an in teractive user. Batch systems do not have such requireme nts.A pure batch system also may have not to handle time sharing,whereas an operating systemmust switch rapidly betwee n differe nt jobs.木有找到中文答案1.6 Define the esse ntial properties of the follow ing types of operat ing systems:a. Batchb. In teractivec. Time shar ingd. Real timee. Networkf. Distributeda. Batch. Jobs with similar n eeds are batched together and run through the computer as a group by an operator or automatic job seque ncer. Performa nee is in creased by attempting to keep CPU and I/O devices busy at all times through buffering, off-line operati on, spooli ng, and multiprogram ming. Batch is good for executi ng large jobs that need little interaction; it can be submitted and picked up later.b. In teractive. This system is composed of many short tran sacti ons where the results of the n ext tran sacti onmay be un predictable. Resp onse time n eeds to be short (sec on ds) since the user submits and waits for the result.c. Time shar in g.Thissystemsuses CPU scheduli ng and multiprogram ming to provide econo mical in teractive use of a system. The CPU switches rapidly from one user toano ther. In stead of hav ing a job de? ned by spooled card images, each program readsits next control card from the terminal, and output is normally printed immediately to the scree n.d. Real time. Often used in a dedicated application, this system reads information fromsen sors and must resp ond with in a ?xed amou nt of time to en sure correct perfor-man ce.e. Network.f. Distributed.This system distributes computati on among several physical processors.The processors do not share memory or a clock. In stead, each processor has its own local memory. They commu ni cate with each other through various commu ni cati on lin es, such as a high-speed bus or teleph one line.a. Batch相似需求的Job分批、成组的在计算机上执行，Job由操作员或自动Job程序装置装载；可以通过采用buffering, off-line operation, spooling, multiprogramming 等技术使CPU 禾口I/O不停忙来提高性能批处理适合于需要极少用户交互的Job。

安卓系统与IOS系统比较―英文文献翻译(适用于毕业论文外文翻译+

安卓系统与IOS系统比较―英文文献翻译（适用于毕业论文外文翻译+ESEP 2021: 9-10 December 2021, SingaporeAn Analysis and Comparison of Open and Closed MobilePlatforms AbstractWith the release of Android 2.2 Froyo and iPhone 4, the war between open and closed mobile platforms tends to befiercer. Being the representatives of the two parties, Froyo and iOS 4 are quite different at system framework, newfeature, application market and integration model. According to the company spirits of Google and Apple, we do some analyses and comparisons of the above points, explain the differences of Android and iPhone from the shallower to the deeper, then conclude the characteristics of open and closed mobile platforms, aiming at providing an objective reference for researchers of mobile platforms, helping them see clearer into mobile industry. As aresult,both Froyo and iOS 4 have their advantages and disadvantages, still they are far from being perfect, there?s room forfurther improvement.Keywords: Android；iPhone；Froyo；iOS 4；smart phone；mobile platform1. IntroductionIn recent years, the popularity of smart phone kept going up. More and more smart phones are sold anda lot of people are embracing them. Smart phones brought great convenience to users, as well created opportunities for smart phone researchers. That?s to say, the wide spread of smart phones benefited both sides. At the same time, developing of smart phone OS becomes one of the smartest industry. To be a smart phone OS, the system should: 1. Provide services like a PC. 2. Work with a GPU for better visual effects. 3. Allow the user to surf on Internet freely. And apparently, there?re also some weaknesses:1.Limited battery. 2. Poor CPU performance against PC CPU. 3. Small storage. 4. The use of RAM may leads to loss of data when the phone runs out of batteryNow the 2 giants of smart phone OS are Android and iPhone OS. On one side, Android is based on Linux kernel and Dalvik virtual machine, and it is open sourced. The upper layer of Android is Java based,allowing developers to develop Android applications with Google SDK and sell their software in Android Market. On the other side, iPhone OS, which bases on Unix kernel andDarwin model but is closed sourced,evolves from Mac OS X and is the default OS of iPhone, iPod Touch and iPad. Objective C based software can run in iPhone OS, and just like Android, you1can develop your own iPhone applications and upload them onto Apple?s ?App Store? for sale [1] [2] [3] [4].By comparing the latest Android and iPhone OS, Android 2.2 Froyo and iOS 4, we can take a glimpse at the main feature of open and closed smart phone OSs. While the 2 OSs are designed in rather different mentality and functionality, it?s a little early to tell which one is better.2. Smart Phone OS2.1. AndroidThe system architecture of Android consists of 5 layers, which are Linux Kernel, Android Runtime, Libraries, Application Framework and Applications, from bottom to top.Android provides core services like security, memory management, process management, network stack and drivers, basing on Linux 2.6. Being the abstract layer between software and hardware, the layer of Linux Kernel hides the implementing details of hardware and provides integrated services for upper layer.Dalvik virtual machine and Java core libraries are included in the layerof Android Runtime, providing most functions in Java core libraries.The layer of Libraries contains a class of C/C++ libraries for Android components. Those libraries are integrated by the layer of Application Framework and then provided to developers.The layer of Application Framework provides all kinds of modules for program initialization to simplify the use of components, allowing developers do whatever they want and provide services for other softwares, under the limitation of security, of course.Mainstream applications are located in the layer of Application, including e-mail, SMS, calendar, Google map, Web browser and contacts. Users interact directly with this layer [1] [2].The latest version of Android, Android 2.2 Froyo, puts on some new features. They are: 1. Support Flash 10.1, enables user to watch flash on the phone. 2. V8 JavaScript engine in web browser leads to faster Internet data transportation. 3. Big advance in network sharing. You can use the phone as a 3G NIC,or convert 3G signal to Wi-Fi. 4. Automatically software update. 5. Softwares can be setup in SD card to extend file storages.2.2. iPhone2iPhone OS is consist of 4 abstract layers: Core OS, Core Service, Media and Cocoa Touch respectively.Layers of Core OS and Core Service are designed in C language to handle core system services, enabling developers to perform file access, sockets calling and data handling. CFNetwork and SQLite are also parts of these 2 layers.The layer of Media, according to its name, this layer is used to control video and audio, as well handle 2D and 3D images. The Open GL-ES Quratz part of the layer is coded with C language, while the part of Core-Audio and Core-Animation is Objective C based.The layer of Cocoa Touch builds a basic framework for all kinds of programs in iPhone. Most programs run in Cocoa Touch layer, and it?s surely Objective C based [3] [4].The latest iPhone OS is iOS 4. It includes the following new features: 1.Software classification. Thisfeature enables user to place sorted softwares into different documents, making it clearer to manage. 2. Email integration. One account is for all e-mails from different providers. 3. iBook, originally from iPad, is built in iOS. 4. A brand new Apple Game Center makes iPhone a tremendous entertainment platform.2.3. Android vs. iPhoneBeing the top 2 smart phone OSs, we?re sure that both Android and iPhone have their own advantages and disadvantages. Now let?s take a look at each of them, and see what unique feature they have.Android 2.2 Froyo fully support multitask, which means you can listen to music while writing blog. And iOS 4, officially announced to be ?multitasked?, is in fact a play of concept. Only a few of softwares which are authorized by Apple can run ?simultaneously?, whose principle is much easier thatmultitask:when an application is switched out, its current state is saved and then the system just closes it. And when it?s switched in, we?re back to the previous snapshot [5] [6] [7].During the publication of Android 2.2 Froyo, Google announced it has ?the most fluent web browser?,because the use of V8 JavaScript engine. V8 is abrand new engine, designed for running big size JavaScript application. In some kind of tests, V8 is much faster than JScript from Internet Explorer, SpiderMonkey from Firefox and JavaScriptCore from Safari. It all owe to 3 key parts of V8, they?re fast attribute access, dynamic code generation, effective trash cleaning.32.3.1. Fast Attribute AccessJavaScript is a kind of dynamic language, which means attributes can be added or deleted at runtime, and they?re frequently changed. Most JavaScript engines use a dictionary style structure to store the attributes of an object, so it requires a whole dictionary search to find the position of attributes in memory.It?s quite inefficient and it?s slower than Java and Smalltalk.To solve this problem, V8 discarded dynamic search and realized it in a different way: Create hidden classes for objects dynamically. In JavaScript, every time when we?re adding a new attribute to an object,we create a subclass with the new attribute from a hidden class as the super class. It?s arecursive course and the above performance happens only once when we first do this. Later we just use the previous hidden subclass when we?re in the same situation. So there?s no need to repeat operation and create a dictionary.This leads to the save of time and energy, as well make it easier for the implementation of class optimization and inner cache [4].2.3.2. Dynamic Code GenerationWhen JavaScript is running for the very first time, V8 translate itdirectly into local machine code, rather than explain it to bytecode.Attribute access is done by inner cache, which is often translated into instructions by V8 at runtime.When it comes to the code where certain object is accessed, V8 tries to find the current hidden class. Meanwhile, V8 assumes that all objects in the snippet are described by the same hidden class, so V8 willmodify corresponding inner cache to make the direct use of the hidden class more convenient. If thisassumption is correct, the access of attributes can be all done in only 1 instruction. Even if the predictionfails, inner cache is modified again by V8, which won?t take too much time and resource. When one hidden class is shared by a lot of objects, the access speed can be close to most dynamic language access speed. Inner cache and hidden class, mixed with dynamic code and class optimization, improve the efficiency of JavaScript at a large scale [4].2.3.3. Effective Trash CleaningV8 does memory recycles automatically. To guarantee the speed of object distribution, as well cut the time of trash cleaning and clear fragment up, V8 will interrupt the running application when performing trash cleaning. Mostly, only a small part of object stack is involved in trash cleaning cycle, so the interruption caused little. All location of objects and pointers are logged by V8, so the system4won?t take object for pointer and memory overflow is avoided [4].Besides ?the most fluent web browser?, Google collaborated with Adobe and Android 2.2 Froyo fully supports Flash. That?s to say, not only flash media, but all flash web pages can display perfectly on Android. To the contrary, Apple turned down Adobe and take HTML5 as iPhone?s web protocol, making it unable to show some flash based animation.Android 2.2 Froyo also leads the way in network sharing. Smart phone with Froyo can be connected toa PC as a 3G NIC, and can also conveniently convert3G signal to Wi-Fi. iOS 4 can do the first too, butfailed to convert 3G to Wi-Fi.Video conference is both supported by Froyo and iOS 4, but the conditions are different. You can see aFroyo user via camera as long as you get a camera also. However, iOS 4 user can only do video talk toanother iOS 4 user, whichis a big limitation.While Android is ascendant in network interaction, Apple is unique in its friendship and entertainment.The added feature of ?software classification?enables user to place sorted softwares into differentdocuments, making it clearer to manage. What?s more, there?re hundreds of thousands applications inApp Store, meaning that iPhone can have up to hundreds of thousands functions. This is a ratherremarkable feature that Apple publicizes.And the most convincing point given by Apple, is that ?Android looks exactly familiar with iPhone.? Although it?s just a subjective sense, the born of iPhone really brought big revolution to the phone industry, and the name ?Apple? itself is a world famous brand [7] [8].3. Open and Closed platforms3.1. SDKThe most important part of every developing platform is SDK, enable 3rd party developers to make software for the platform. Usually, libraries, debug tools and emulators are included in SDK. Different platforms distribute their SDKs differently. Some SDK is complete free and open, while others arestrictly limited.Developers of open platforms can get and modify part or all of the source code. Google and Linux are leaders of open platforms; they publicized the whole source code of Android and Linux. The good point is that, platform owners can save a great amount of time and energy developing and maintaining the platform, because 3rd party developers will do this for them. With less money spent on development and5感谢您的阅读，祝您生活愉快。

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To appear in ACM User Interface Software and Technology 2001 (UIST’01) , Nov 11-14, Orlando, Florida . Abstract In this paper, we describe Kimura, an augmented ofﬁceenvironment to support common multitasking practices.Previous systems, such as Rooms, limit users byconstraining the interaction to the desktop monitor. InKimura, we leverage interactive projected peripheraldisplays to support the perusal, manipulation and awarenessof background activities. Furthermore, each activity isrepresented by a montage comprised of images from currentand past interaction on the desktop. These montages helpremind the user of past actions, and serve as a springboardfor ambient context-aware reminders and notiﬁcations.

Keywords: Context-aware computing, ubiquitous

computing, ambient displays, ofﬁce computing, Rooms.

1 Introduction Advances in technological capabilities enable new forms ofinteraction and often suggest the re-examination of previousinterface concepts that could not be fully realized by thetechnology of the day.

In this research, we take as a starting point the use ofinteractive, projected displays in individual ofﬁces. Oftendiscussed in the context of ubiquitous computing andaugmented environments, these displays are envisioned as anatural extension to traditional computing in a work setting.In particular, we are interested in leveraging projecteddisplays as peripheral interfaces that compliment existingfocal work areas, and supporting the natural ﬂow of workacross these two setting. We are not alone in believing thatthe effective design of peripheral displays can revolutionizehuman-computer interfaces; the intuitive appeal of suchdisplays has given rise to an assortment of exciting researchthat is exploring possible ways to take advantage of people’s

uncanny ability to utilize peripheral information withcomparatively little effort [2][12].

We use these peripheral displays to assist users in managingmultiple “working contexts”—coherent sets of taskstypically involving the use of multiple documents, tools, andcommunications with others. This goal of supporting multi-tasking is not new and has received considerable attention ina variety of research communities (e.g., [17]). Awareness ofthe need to support multiple simultaneous activities drovethe development of the multi-windowed graphical userinterface [17], and the subsequent addition of multiple“virtual desktops” to these interfaces [7].

Unfortunately, these graphical user-interfaces do notprovide effective support for managing multiple workingcontexts. Limited screen real estate makes it impossible tomaintain an awareness of background activities. Moreover,constraining the interaction to the desktop is a poor matchfor common human behaviors such as using large amountsof physical space to simultaneously organize, monitor, andmanage multiple activities [20]. The goal of our research isto leverage large projected interactive surfaces to supportinnate human abilities such as peripheral awareness, andhuman cognitive practices such as multi-tasking and off-loading information into the physical environment [10].

Our system, Kimura, separates the user’s “desktop” into twoparts, the focal display on the desktop monitor, and theperipheral displays projected on the ofﬁce walls, as shown

Figure 1: The augmented ofﬁce environment includingthe focal and peripheral interactive displays.

Support For Multitasking and Background AwarenessUsing Interactive Peripheral Displays

Blair MacIntyre 1 , Elizabeth D. Mynatt 1 , Stephen Voida 1 , Klaus M. Hansen 2 , Joe Tullio 1 , Gregory M. Corso 3 1 College of ComputingGVU Center, Georgia Tech,Atlanta, GA, 30332-0280{blair,mynatt,svoida,jtullio}@cc.gatech.edu 2 University of AarhusAabogade 34A, 8200 Aarhus NDenmarkmarius@daimi.au.dk 3 School of Psychology

GVU Center, Georgia Tech,Atlanta, GA, 30332-0170gregory.corso@psych.gatech.edu

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