The effects of next to nearest neighbor hopping on Bose-Einstein condensation in cubic latt
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广东省东莞市香市中学2018-2019学年高三英语上学期期末试卷含解析一、选择题1. Films, _______ the one you told me about yesterday or the one that will be on,_______ not worth seeing.A. including; isB. as well as; areC. besides; isD. such as; are参考答案:D2. Being able to afford _______ drink would be ______ comfort in those tough times.A.the; the B.a; a C.a; 不填 D.不填;a参考答案:B3. China is a reliable partner, because we always honor our.mitmentB.qualityC.cooperationD.virtue参考答案:A句意:中国是一个可以信赖的伙伴,因为我们一直信守我们的承诺。
commitment意为"承诺";quality意为"品质";cooperation意为"合作";virtue意为"美德"。
4. ---I think Maths is playing a more important part in the new test system. What about you?--- ______. We should be more devoted to it.A. No pains, no gains.B. Fact speaks louder than words.C. Great minds think alike.D. Don’t claim to know what you don’t know.参考答案:C略5. Elias felt bad ______ he talked to a group.A. the first timeB. for the first timeC. at that timeD. on the time参考答案:A6. It’s a little surprising that a house made of wood or bamboo may stay up in an earthquake while it is easier for made of steel and concrete to fall down sometimes.A. oneB. thatC. itD. what参考答案:A7. The speech from the new government is a __________ that major changes are on the way.A.notice B.feature C.signal D.mark参考答案:C8. The boy went swimming in the deep lake, his mother's fear for his safety.A. regardless ofB. apart fromC. but forD. instead of参考答案:A9. _______ some teenagers don’t realize is _______ difficult life can be after they get addicted to computer games.A. What; howB. That; howC. That; whatD. What; what a参考答案:A【详解】考查主语从句和表语从句。
2024北京大兴高二(上)期末英语本试卷共12页,共100分。
考试时长90分钟。
考生务必将答案写在答题卡上,在试卷上作答无效。
第一部分知识运用(共两节,30分)第一节完形填空(共10小题;每小题1.5分,共15分)阅读下面短文,掌握其大意,从每题所给的A、B、C、D四个选项中,选出最佳选项,并在答题卡上将该项涂黑。
The incident happened one day in November. A stranger asked Sammy where his mother and father were, and he knew something was off. While the woman was 1 to him, she insisted that she knew his family. The woman indicated he should come with her, but young Sammy didn’t follow.He was understandably 2 the situation but out of it he came up with a plan. The youngster entered a store he regularly went to and 3 the cashier, Hannah Daniels. Thirty-year-old Hannah was behind the register and Sammy’s 4 were something she would never forget.He whispered to her, “Act like you’re my mom. This lady is 5 me.” Hannah remained calm, but she didn’t take Sammy’s words lightly.Hannah immediately placed herself between the boy and the woman. The woman was standing just outside the store, so Hannah could shut the door and lock it 6 something terrible happened.Sammy recalled the 7 moment and noted that he was trembling in the store. His dad bad taught him about the 8 of strangers and the risk of kidnappings (拐骗). As a result, the youngster knew how to 9 to the woman.camera, he said he was moved to tears. He hopes their experience would 10 other moms and dads to educate their kids because it can make a significant difference.1. A. nice B. unfamiliar C. similar D. polite2. A. worried about B. insisted on C. interested in D. surprised at3. A. rejected B. analyzed C. caught D. approached4. A. grades B. jokes C. words D. hopes5. A. following B. challenging C. testing D. teaching6. A. since B. after C. until D. before7. A. exciting B. frightening C. satisfying D. disappointing8. A. danger B. love C. voice D. preference9. A. play B. respond C. talk D. complain10. A. invite B. allow C. encourage D. introduce第二节语法填空(共10小题;每小题1.5分,共15分)阅读下列短文,根据短文内容填空。
ECMWF模式降水预报与极端天气预报指数在暴雨预报中的评估与应用季晓东;漆梁波【摘要】评估分析了欧洲中期天气预报中心(European Centre for Medium-range Weather Forecasts,ECMWF)细网格模式(以下简称EC-thin)在长三角地区汛期(5—9月)的暴雨预报评分及ECMWF降水极端天气预报指数(EFI)对暴雨预警的指示作用.研究发现:(1)EC-thin降水和降水EFI对暴雨预报的ETS评分随着预报时效的延长而明显降低,在短时效内,细网格模式降水预报占优,超过60 h后,降水EFI的评分相对更好.(2)对EC-thin降水而言,在不同的预报时效采用不同的降水阈值来预报暴雨,可望达到最佳的评分效果.短期时效内该阈值随着预报时效的延长,大致从55 mm逐渐下降到35 mm.(3)对于降水EFI而言,12—36 h内EFI为0.65~0.7时,暴雨预报ETS评分最高.随着预报时效的延长逐渐下降,60—84 h内EFI为0.55~0.6时,暴雨预报ETS评分最高.(4)在不同预报时效内,采用合理的方式和阈值综合考虑EC-thin降水和降水EFI,可望得到更高的暴雨预报评分.【期刊名称】《暴雨灾害》【年(卷),期】2018(037)006【总页数】8页(P566-573)【关键词】暴雨预报;ECMWF细网格模式;极端天气预报指数EFI;ETS评分【作者】季晓东;漆梁波【作者单位】上海中心气象台,上海 200030;上海中心气象台,上海 200030【正文语种】中文【中图分类】P338+.8引言随着气候变暖,暴雨发生频率和强度有增加的趋势,常常衍生的洪涝灾害对社会和生态的影响力和破坏力也越来越严重[1,2],因此,探索提高暴雨预报的方法迫不及待。
随着数值天气预报的发展,高分辨数值模式产品在现代天气预报业务中已不可或缺[3]。
EC⁃MWF全球确定性模式(以下简称EC-thin)是最先进的数值天气预报模式之一,其对暴雨预报能力在持续上升[4,5]。
名词解释中英文对比<using_information_sources> social networks 社会网络abductive reasoning 溯因推理action recognition(行为识别)active learning(主动学习)adaptive systems 自适应系统adverse drugs reactions(药物不良反应)algorithm design and analysis(算法设计与分析) algorithm(算法)artificial intelligence 人工智能association rule(关联规则)attribute value taxonomy 属性分类规范automomous agent 自动代理automomous systems 自动系统background knowledge 背景知识bayes methods(贝叶斯方法)bayesian inference(贝叶斯推断)bayesian methods(bayes 方法)belief propagation(置信传播)better understanding 内涵理解big data 大数据big data(大数据)biological network(生物网络)biological sciences(生物科学)biomedical domain 生物医学领域biomedical research(生物医学研究)biomedical text(生物医学文本)boltzmann machine(玻尔兹曼机)bootstrapping method 拔靴法case based reasoning 实例推理causual models 因果模型citation matching (引文匹配)classification (分类)classification algorithms(分类算法)clistering algorithms 聚类算法cloud computing(云计算)cluster-based retrieval (聚类检索)clustering (聚类)clustering algorithms(聚类算法)clustering 聚类cognitive science 认知科学collaborative filtering (协同过滤)collaborative filtering(协同过滤)collabrative ontology development 联合本体开发collabrative ontology engineering 联合本体工程commonsense knowledge 常识communication networks(通讯网络)community detection(社区发现)complex data(复杂数据)complex dynamical networks(复杂动态网络)complex network(复杂网络)complex network(复杂网络)computational biology 计算生物学computational biology(计算生物学)computational complexity(计算复杂性) computational intelligence 智能计算computational modeling(计算模型)computer animation(计算机动画)computer networks(计算机网络)computer science 计算机科学concept clustering 概念聚类concept formation 概念形成concept learning 概念学习concept map 概念图concept model 概念模型concept modelling 概念模型conceptual model 概念模型conditional random field(条件随机场模型) conjunctive quries 合取查询constrained least squares (约束最小二乘) convex programming(凸规划)convolutional neural networks(卷积神经网络) customer relationship management(客户关系管理) data analysis(数据分析)data analysis(数据分析)data center(数据中心)data clustering (数据聚类)data compression(数据压缩)data envelopment analysis (数据包络分析)data fusion 数据融合data generation(数据生成)data handling(数据处理)data hierarchy (数据层次)data integration(数据整合)data integrity 数据完整性data intensive computing(数据密集型计算)data management 数据管理data management(数据管理)data management(数据管理)data miningdata mining 数据挖掘data model 数据模型data models(数据模型)data partitioning 数据划分data point(数据点)data privacy(数据隐私)data security(数据安全)data stream(数据流)data streams(数据流)data structure( 数据结构)data structure(数据结构)data visualisation(数据可视化)data visualization 数据可视化data visualization(数据可视化)data warehouse(数据仓库)data warehouses(数据仓库)data warehousing(数据仓库)database management systems(数据库管理系统)database management(数据库管理)date interlinking 日期互联date linking 日期链接Decision analysis(决策分析)decision maker 决策者decision making (决策)decision models 决策模型decision models 决策模型decision rule 决策规则decision support system 决策支持系统decision support systems (决策支持系统) decision tree(决策树)decission tree 决策树deep belief network(深度信念网络)deep learning(深度学习)defult reasoning 默认推理density estimation(密度估计)design methodology 设计方法论dimension reduction(降维) dimensionality reduction(降维)directed graph(有向图)disaster management 灾害管理disastrous event(灾难性事件)discovery(知识发现)dissimilarity (相异性)distributed databases 分布式数据库distributed databases(分布式数据库) distributed query 分布式查询document clustering (文档聚类)domain experts 领域专家domain knowledge 领域知识domain specific language 领域专用语言dynamic databases(动态数据库)dynamic logic 动态逻辑dynamic network(动态网络)dynamic system(动态系统)earth mover's distance(EMD 距离) education 教育efficient algorithm(有效算法)electric commerce 电子商务electronic health records(电子健康档案) entity disambiguation 实体消歧entity recognition 实体识别entity recognition(实体识别)entity resolution 实体解析event detection 事件检测event detection(事件检测)event extraction 事件抽取event identificaton 事件识别exhaustive indexing 完整索引expert system 专家系统expert systems(专家系统)explanation based learning 解释学习factor graph(因子图)feature extraction 特征提取feature extraction(特征提取)feature extraction(特征提取)feature selection (特征选择)feature selection 特征选择feature selection(特征选择)feature space 特征空间first order logic 一阶逻辑formal logic 形式逻辑formal meaning prepresentation 形式意义表示formal semantics 形式语义formal specification 形式描述frame based system 框为本的系统frequent itemsets(频繁项目集)frequent pattern(频繁模式)fuzzy clustering (模糊聚类)fuzzy clustering (模糊聚类)fuzzy clustering (模糊聚类)fuzzy data mining(模糊数据挖掘)fuzzy logic 模糊逻辑fuzzy set theory(模糊集合论)fuzzy set(模糊集)fuzzy sets 模糊集合fuzzy systems 模糊系统gaussian processes(高斯过程)gene expression data 基因表达数据gene expression(基因表达)generative model(生成模型)generative model(生成模型)genetic algorithm 遗传算法genome wide association study(全基因组关联分析) graph classification(图分类)graph classification(图分类)graph clustering(图聚类)graph data(图数据)graph data(图形数据)graph database 图数据库graph database(图数据库)graph mining(图挖掘)graph mining(图挖掘)graph partitioning 图划分graph query 图查询graph structure(图结构)graph theory(图论)graph theory(图论)graph theory(图论)graph theroy 图论graph visualization(图形可视化)graphical user interface 图形用户界面graphical user interfaces(图形用户界面)health care 卫生保健health care(卫生保健)heterogeneous data source 异构数据源heterogeneous data(异构数据)heterogeneous database 异构数据库heterogeneous information network(异构信息网络) heterogeneous network(异构网络)heterogenous ontology 异构本体heuristic rule 启发式规则hidden markov model(隐马尔可夫模型)hidden markov model(隐马尔可夫模型)hidden markov models(隐马尔可夫模型) hierarchical clustering (层次聚类) homogeneous network(同构网络)human centered computing 人机交互技术human computer interaction 人机交互human interaction 人机交互human robot interaction 人机交互image classification(图像分类)image clustering (图像聚类)image mining( 图像挖掘)image reconstruction(图像重建)image retrieval (图像检索)image segmentation(图像分割)inconsistent ontology 本体不一致incremental learning(增量学习)inductive learning (归纳学习)inference mechanisms 推理机制inference mechanisms(推理机制)inference rule 推理规则information cascades(信息追随)information diffusion(信息扩散)information extraction 信息提取information filtering(信息过滤)information filtering(信息过滤)information integration(信息集成)information network analysis(信息网络分析) information network mining(信息网络挖掘) information network(信息网络)information processing 信息处理information processing 信息处理information resource management (信息资源管理) information retrieval models(信息检索模型) information retrieval 信息检索information retrieval(信息检索)information retrieval(信息检索)information science 情报科学information sources 信息源information system( 信息系统)information system(信息系统)information technology(信息技术)information visualization(信息可视化)instance matching 实例匹配intelligent assistant 智能辅助intelligent systems 智能系统interaction network(交互网络)interactive visualization(交互式可视化)kernel function(核函数)kernel operator (核算子)keyword search(关键字检索)knowledege reuse 知识再利用knowledgeknowledgeknowledge acquisitionknowledge base 知识库knowledge based system 知识系统knowledge building 知识建构knowledge capture 知识获取knowledge construction 知识建构knowledge discovery(知识发现)knowledge extraction 知识提取knowledge fusion 知识融合knowledge integrationknowledge management systems 知识管理系统knowledge management 知识管理knowledge management(知识管理)knowledge model 知识模型knowledge reasoningknowledge representationknowledge representation(知识表达) knowledge sharing 知识共享knowledge storageknowledge technology 知识技术knowledge verification 知识验证language model(语言模型)language modeling approach(语言模型方法) large graph(大图)large graph(大图)learning(无监督学习)life science 生命科学linear programming(线性规划)link analysis (链接分析)link prediction(链接预测)link prediction(链接预测)link prediction(链接预测)linked data(关联数据)location based service(基于位置的服务) loclation based services(基于位置的服务) logic programming 逻辑编程logical implication 逻辑蕴涵logistic regression(logistic 回归)machine learning 机器学习machine translation(机器翻译)management system(管理系统)management( 知识管理)manifold learning(流形学习)markov chains 马尔可夫链markov processes(马尔可夫过程)matching function 匹配函数matrix decomposition(矩阵分解)matrix decomposition(矩阵分解)maximum likelihood estimation(最大似然估计)medical research(医学研究)mixture of gaussians(混合高斯模型)mobile computing(移动计算)multi agnet systems 多智能体系统multiagent systems 多智能体系统multimedia 多媒体natural language processing 自然语言处理natural language processing(自然语言处理) nearest neighbor (近邻)network analysis( 网络分析)network analysis(网络分析)network analysis(网络分析)network formation(组网)network structure(网络结构)network theory(网络理论)network topology(网络拓扑)network visualization(网络可视化)neural network(神经网络)neural networks (神经网络)neural networks(神经网络)nonlinear dynamics(非线性动力学)nonmonotonic reasoning 非单调推理nonnegative matrix factorization (非负矩阵分解) nonnegative matrix factorization(非负矩阵分解) object detection(目标检测)object oriented 面向对象object recognition(目标识别)object recognition(目标识别)online community(网络社区)online social network(在线社交网络)online social networks(在线社交网络)ontology alignment 本体映射ontology development 本体开发ontology engineering 本体工程ontology evolution 本体演化ontology extraction 本体抽取ontology interoperablity 互用性本体ontology language 本体语言ontology mapping 本体映射ontology matching 本体匹配ontology versioning 本体版本ontology 本体论open government data 政府公开数据opinion analysis(舆情分析)opinion mining(意见挖掘)opinion mining(意见挖掘)outlier detection(孤立点检测)parallel processing(并行处理)patient care(病人医疗护理)pattern classification(模式分类)pattern matching(模式匹配)pattern mining(模式挖掘)pattern recognition 模式识别pattern recognition(模式识别)pattern recognition(模式识别)personal data(个人数据)prediction algorithms(预测算法)predictive model 预测模型predictive models(预测模型)privacy preservation(隐私保护)probabilistic logic(概率逻辑)probabilistic logic(概率逻辑)probabilistic model(概率模型)probabilistic model(概率模型)probability distribution(概率分布)probability distribution(概率分布)project management(项目管理)pruning technique(修剪技术)quality management 质量管理query expansion(查询扩展)query language 查询语言query language(查询语言)query processing(查询处理)query rewrite 查询重写question answering system 问答系统random forest(随机森林)random graph(随机图)random processes(随机过程)random walk(随机游走)range query(范围查询)RDF database 资源描述框架数据库RDF query 资源描述框架查询RDF repository 资源描述框架存储库RDF storge 资源描述框架存储real time(实时)recommender system(推荐系统)recommender system(推荐系统)recommender systems 推荐系统recommender systems(推荐系统)record linkage 记录链接recurrent neural network(递归神经网络) regression(回归)reinforcement learning 强化学习reinforcement learning(强化学习)relation extraction 关系抽取relational database 关系数据库relational learning 关系学习relevance feedback (相关反馈)resource description framework 资源描述框架restricted boltzmann machines(受限玻尔兹曼机) retrieval models(检索模型)rough set theroy 粗糙集理论rough set 粗糙集rule based system 基于规则系统rule based 基于规则rule induction (规则归纳)rule learning (规则学习)rule learning 规则学习schema mapping 模式映射schema matching 模式匹配scientific domain 科学域search problems(搜索问题)semantic (web) technology 语义技术semantic analysis 语义分析semantic annotation 语义标注semantic computing 语义计算semantic integration 语义集成semantic interpretation 语义解释semantic model 语义模型semantic network 语义网络semantic relatedness 语义相关性semantic relation learning 语义关系学习semantic search 语义检索semantic similarity 语义相似度semantic similarity(语义相似度)semantic web rule language 语义网规则语言semantic web 语义网semantic web(语义网)semantic workflow 语义工作流semi supervised learning(半监督学习)sensor data(传感器数据)sensor networks(传感器网络)sentiment analysis(情感分析)sentiment analysis(情感分析)sequential pattern(序列模式)service oriented architecture 面向服务的体系结构shortest path(最短路径)similar kernel function(相似核函数)similarity measure(相似性度量)similarity relationship (相似关系)similarity search(相似搜索)similarity(相似性)situation aware 情境感知social behavior(社交行为)social influence(社会影响)social interaction(社交互动)social interaction(社交互动)social learning(社会学习)social life networks(社交生活网络)social machine 社交机器social media(社交媒体)social media(社交媒体)social media(社交媒体)social network analysis 社会网络分析social network analysis(社交网络分析)social network(社交网络)social network(社交网络)social science(社会科学)social tagging system(社交标签系统)social tagging(社交标签)social web(社交网页)sparse coding(稀疏编码)sparse matrices(稀疏矩阵)sparse representation(稀疏表示)spatial database(空间数据库)spatial reasoning 空间推理statistical analysis(统计分析)statistical model 统计模型string matching(串匹配)structural risk minimization (结构风险最小化) structured data 结构化数据subgraph matching 子图匹配subspace clustering(子空间聚类)supervised learning( 有support vector machine 支持向量机support vector machines(支持向量机)system dynamics(系统动力学)tag recommendation(标签推荐)taxonmy induction 感应规范temporal logic 时态逻辑temporal reasoning 时序推理text analysis(文本分析)text anaylsis 文本分析text classification (文本分类)text data(文本数据)text mining technique(文本挖掘技术)text mining 文本挖掘text mining(文本挖掘)text summarization(文本摘要)thesaurus alignment 同义对齐time frequency analysis(时频分析)time series analysis( 时time series data(时间序列数据)time series data(时间序列数据)time series(时间序列)topic model(主题模型)topic modeling(主题模型)transfer learning 迁移学习triple store 三元组存储uncertainty reasoning 不精确推理undirected graph(无向图)unified modeling language 统一建模语言unsupervisedupper bound(上界)user behavior(用户行为)user generated content(用户生成内容)utility mining(效用挖掘)visual analytics(可视化分析)visual content(视觉内容)visual representation(视觉表征)visualisation(可视化)visualization technique(可视化技术) visualization tool(可视化工具)web 2.0(网络2.0)web forum(web 论坛)web mining(网络挖掘)web of data 数据网web ontology lanuage 网络本体语言web pages(web 页面)web resource 网络资源web science 万维科学web search (网络检索)web usage mining(web 使用挖掘)wireless networks 无线网络world knowledge 世界知识world wide web 万维网world wide web(万维网)xml database 可扩展标志语言数据库附录 2 Data Mining 知识图谱(共包含二级节点15 个,三级节点93 个)间序列分析)监督学习)领域 二级分类 三级分类。
2024届高三开学测试英语试卷(答案在最后)本试卷分选择题和非选择题两部分,共8页,满分为120分。
考试用时120分钟。
注意事项:1、答卷前,考生务必用黑色字迹的钢笔或签字笔将自己的姓名和学号填写在答题卡和答卷密封线内相应的位置上,用2B铅笔将自己的学号填涂在答题卡上。
2、选择题每小题选出答案后,有2B铅笔把答题卡上对应题目的答案标号涂黑;如需改动,用橡皮擦干净后,再选涂其他答案;不能答在试卷上。
3、非选择题必须用黑色字迹的钢笔或签字笔在答卷纸上作答,答案必须写在答卷纸各题目指定区域内的相应位置上,超出指定区域的答案无效;如需改动,先划掉原来的答案,然后再写上新的答案;不准使用铅笔和涂改液。
不按以上要求作答的答案无效。
4、考生必须保持答题卡的整洁和平整。
第一部分阅读(共两节,满分50分)第一节(共15小题;每小题2.5分,满分37.5分)阅读下列短文,从1-15每题所给的四个选项(A、B、C、和D)中,选出最佳选项,并在答题卡上将该项涂黑。
ATo request Smile Cards,please fill out the form below.A volunteer will mail you an order of ten cards within two weeks.Smile Cards are offered to anyone who requests them on a pay-it-forward basis.That means there is no charge for a set of cards.Someone before you has paid for your cards,and you are invited to keep the chain going and pay-forward whatever you wish for the next person!For special events or circumstances,you can also place a large quantity of request.Note:When using a Smile Card,remember not to just hand it out by itself.The idea is to do something kind for someone and then leave the Smile Card behind,so that they know someone reached out to them,and that they are invited to pay-forward the kindness and keep the ripples going!PLACE SMILE CARD ORDER NOWABOUT USKindSpring is a place to practice small acts of"kindness.For over a decade the KindSpring user community has focused on inner transformation,while collectively changing the world with generosity,gratitude,and trust. The site is100%volunteer-run and totally non-commercial.It is a shared labor of love.1.When can you use a smile card?A.Your friend's birthday is approaching.B.Your classmate has won the first prize.C.You've ordered lunch for a poor friend.D.You find your classmate in low spirits.2.To order smile cards,you have to____________.A.pay for them in advanceB.place a big quantity of requestC.mail some necessary informationD.tell what favor you will do for others3.The purpose of using smile cards is to encourage people to________________.A.spread kindnessB.become volunteersC.advertise for K indSpringD.pay others'kindness back【答案】1.C 2.D 3.A【解析】【导语】这是一篇应用文。
一篇英文文章,用百度翻译翻译的还有一篇中文文章供参考满满的诚意,求赏金ABSTRACTSURFER is a contouring and 3D surface mapping program, which quickly and easily transforms random surveying data, using interpolation, into continuous curved face contours. In particular, the new version, SURFER 8.0, provides over twelve interpolation methods, each having specific functions and related parameters. In this study, the 5 meter DTM was used as test data to compare the various interpolation results; the accuracy of these results was then discussed and evaluated.摘要冲浪是一个轮廓和三维表面的绘制程序,并迅速和容易地变换随机测量数据,使用插值,成连续的曲面轮廓。
特别是,新版本,上网8,提供超过十二的插值方法,每一个具有特定功能和相关参数。
在这项研究中,5米DTM作为测试数据,比较不同的插值结果;讨论和评价,然后这些结果的准确性。
1. INTRODUCTIONHow to adequately use exist numerous wide-distributed height points has been an important topic in the field of spatial information. Normally, contouring is the way to accurately describe the terrain relief by means of Scenography, Shading, Hachure and Layer Tinting in a way which is best fit to the habit of human vision.Presently, discretely collected height points have to be interpolated to form curved faces, the selection of spatial interpolation methods decide the quality, accuracy and follow-up analysis applications. Interpolation methods are used here to calculated the unknown heights of interested points by referring to the elevation information of neighboring points. There are a great many commercial interpolation software, however, most of them are tiny and designed to solve specific problems with limited versatility. The SURFER is a software developed by US GOLDEN company, and the newest version 8.0 contains up to 12 interpolation methods to been free chosen for various needs. Users are suggested to first have the basic understanding of every interpolation methods before he or she can effectively select parameters in every interpolation methods. In the following paper, we will introduce every interpolation method in SURFER.1。
高考英语阅读思路专项训练之一猜测词义一、词义理解题常见的题型有:The author uses the word “…” to mean ____.The underlined word (phrase, term) “…” means _____.According to the passage, the word “…” properly means _____.The word “…” in paragraph … refers to ____.By “…”, the author means _____.which of the following is closest in meaning to “…”?What is “…”?二、猜测词义方法1)Definition and explanation 利用定义和解释猜测词义;He is a resolute man. Once he makes up his mind to do something, he won’t give it up halfway. The underlined word means____.A.strongB. firmC. kindD. clever2) Experience 根据普通常识和经验推测生词的词义1.Mr. Brown is now working at Princeton University far away from home. For this reason he has to rent a room near the office where he works.A.to work to liveB. to eat to liveC. to teach to liveD. to pay to use2. A good teacher works in quite a different way. His audience take an active part in his play: they ask and answer questions, they obey orders, and if they don’t understand something, they say so.Th e word “audience” in the paragraph means ____.A.studentsB. people who watch a playC. people who act on the stageD. people who listen to something3) Related Information 即根据上下文的语境来猜测生词的词义。
厦门大学网络教育2014-2015学年第二学期《英语2》课程复习题I. Reading Comprehension:Passage 1Millions of stars are traveling about in space. A few form groups which journey together, but most of them travel alone. And they travel through a universe so large that one star seldom comes near to another. For the most part each star makes its journey in complete loneliness, like a ship on an empty ocean. The ship will be well over a million miles from its nearest neighbor. From this it is easy to understand why a star seldom finds another anywhere near it.We believe, however, that some two thousand million years ago, another star wandering through space happened to come near our sun. Just as the sun and the moon raise tides on the earth, so this star must have raised tides on the surface of the sun. But they were very different from the small tides that are raised in our oceans; a large tidal wave must have traveled over the surface of the sun, at last forming a mountain so high that we cannot imagine it. As the cause of the disturbance came nearer, so the mountain rose higher and higher. And before the star began to move away again, its tidal pull had become so powerful that this mountain was torn to pieces and threw off small parts of itself into space. These small pieces have been going round the sun ever since. They are the planets.1. Millions of stars are _______.A. following their own paths in spaceB. moving about without a fixed courseC. seldom wandering about in the universeD. always traveling together2. Some two thousand million years ago, the mountain on the sun was raised probablybecause _______.A. a large tidal wave of a star traveled over the surface of the sunB. another star happened to come near the sunC. the sun and the moon raised the tides on the earthD. the star moved away from the sun3. The article suggests that _______.A. our earth exists before the sunB. how space formedC. no one knows where the earth comes fromD. our earth used to be part of a high mountain on the sun4. The expression "the cause of the disturbance" refers to _______.A. the large tidal waveB. the powerful tidal pullC. the star coming near the sunD. one of the sun's planets5. In this article, the writer mainly wants to tell the readers _______.A. that the universe is so large that we cannot imagine itB. how the high mountains were formed on the sunC. why the tides over the surface of the sun were so powerfulD. where the planets in the universe came fromPassage 2Cars are important in the United States. Without a car most people feel that they are poor. And even if a person is poor he doesn’t feel really poor when he has a car.Henry Ford was the man who first started making cars in large numbers. He probably didn’t know how much the car was going to affect American culture. The car made the United States a nation on wheels. And it helped make the United States what it is today.There are three main reasons the car became so popular in the United States.First of all the country is a huge one and Americans like to move around in it. The car provides the most comfortable and cheapest form of transportation. With a car people can go any place without spending a lot of money.The second reason cars are popular is the fact that the United States never really developed an efficient and inexpensive form of public transportation. Long-distance trains have never been as common in the United States as they are in other parts of the world. Nowadays there is a good system of air-service provided by planes. But it is too expensive to be used frequently.The third reason is the most important one, though. The American spirit of independence is what really made cars popular. Americans don’t like to wait for a bus or a train or even a plane. They don’t like to have t o follow an exact schedule. A car gives them the freedom to schedule their own time. And this is the freedom that Americans want most to have.The gas shortage has caused a big problem for Americans. But the answer will not be a bigger system of public transportation. The real solution will have to be a new kind of car, one that does not use so much gas.6. When do most Americans feel they are poor?A. When they don’t have a car.B. When they live in a huge country.C. When they don’t use planes.D. When they have a car.7. What is the most important reason that cars become popular in the United States?A. Because the United States is huge.B. Because public transportation is not so good.C. Because Americans like to be independent.D. Because Americans like to move around.8. What public transportation is good in the United States?A. Buses.B. Trains.C. Taxis.D. Planes.9. What has caused a big problem for Americans?A. A new kind of car.B. Public transportation.C. The gas shortage.D. Poor people.10. Which of the following is not mentioned according to this passage?A. Cars have made the nation on wheels.B. Cars have made the United States have a gas shortage.C. Nearly 80% of the American people have cars.D. Cars have made American independent.Passage 3“Women have an advantage when it comes to remembering things like the physical features, clothing, and postures of other people,” Horgan says. “This advantage might be due to women being slightly more people-oriented than men are.”The study also found that men and women did better at remembering the appearance of women than they did recollecting (记得) how men looked. Women in general may be more memorable than men because their hair and clothing styles and use of jewelry tend to be more varied than that of men. For example, in many offices, men may look similar in their suits and ties, yet women may wear necklaces and earrings, or have other jewelry or clothing that makes their appearances stand out more.However, the results suggest women are not more memorable because people spend more time looking at them. Participants in the study did not look at women any longer than they looked at men.“We really don’t know for sure why women have an advanta ge at remembering how others look,” Horgan confesses. “But these results go along with studies that show women are better than men in other areas having to do with interpersonal sensitivity.”For example, various studies have shown women have an advantage at using nonverbal (非语言的) cues(提示) to understand how others are feeling, and how theyare likely to behave. Women also appear to be better at using nonverbal cues to figure out someone’s personality traits(性格特征).11. According to the passage, women are good at remembering features of ________.A. office clerksB. men onlyC. women onlyD. people in general12. Women are generally better remembered than men because ________.A. women are more likely to wear suits and tiesB. women’s appearances stand out moreC. women make themselves more fashionableD. women are more frequently noticed by others13. According to the passage, which of the following factors most probably makes women more memorable?A. Their different social identity.B. Their small proportion in the workplace.C. Their shining jewelry.D. Their generous smile.14. When it comes to interpersonal things, women are more ________.A. sensitiveB. openC. conservativeD. easy-going15. Which of the following is true according to the passage?A. Women seem to have better interpersonal relationship than men in family life.B. Women are generally more understanding than men.C. Women know what a man will do next without even looking at him.D. Women sometimes learn about other people’s personality without talking to them.Passage 4If the population of the Earth goes on increasing at its present rate, there will eventually not be enough resources left to support life on the planet. One possible solution to the problem has recently been suggested by an American scientist, Professor Carl Sagan: he believes that before the Earth's resources are completely used up it will be possible to change the atmosphere of Venus (金星) and so create a new world almost as large as the Earth itself. The difficulty is that Venus is much hotter than the Earth and has only a tiny amount of water.Sagan suggests that algae (藻类), plant life that can live in extremely hot or cold atmospheres and at the same time produce oxygen, should be produced in conditions similar to those on Venus. The algae will be placed in small rockets. Spaceships will then fly to Venus and fire the rockets into the atmosphere. In a fairly short time, the algae will break down the gasses in the atmosphere and change them into oxygen that people can breathe. But before man can set foot on Venus, it will be necessary for the oxygen to produce rain to cool the planet, so that after a few years conditions like those on Earth will be produced.If the experiments are successful, life will become possible there but it will not be pleasant at first. When they go to Venus, the first citizens will have to take plenty of water with them and get used to days and nights lasting 60 Earth days. But there will also be some advantages. They will live longer because their hearts will suffer less stress than on Earth. (285 words)16. Men may eventually move to Venus because _____________.A. there are many people on the EarthB. we have used too much oil and waterC. the limited resources can't support life on the EarthD. people take up too much space17. Now it is difficult for us to move to Venus because _____________.A. it is too hot for men to land onB. there is no water thereC. we cannot change the environment thereD. it's a long distance for us to go there18. The algae play a very important role in the possible solution because _____________.A. they can be produced easily on the EarthB. there are a lot of them on VenusC. they can be easily carried to VenusD. they can live in hot and cold conditions and produce oxygen19. The first citizens will find life on Venus not pleasant because ___________.A. their hearts will suffer more stressB. their days and nights will last quite longC. there are not any houses thereD. there is too much water there20. One of the advantages the first citizens on Venus will enjoy is ___________.A. they will have much more spaceB. they won't suffer from heart diseaseC. their life will last longerD. they will have better living conditionsII. Vocabulary and Structure:1. Since we can't hear you at the back of the hall, you'll have to __________ your voice.A. improveB. increaseC. raiseD. open2. _____________ he works hard, I don't mind when he finishes the experiment.A. As soon asB. As long asC. As well asD. So far as3. People who want the typist's job will be judged __________ how accurate and fast they are.A. in favor ofB. in terms ofC. in ways ofD. in spite of4. Shall we request the chairman __________ our suggestion again?A. to considerB. consideringC. considerD. considered5. Some say yes and others say no; I don't know __________ to follow.A. whetherB. whatC. whomD. how6. I could not persuade him to accept it, _____________ make him see the importance of it.A. if only I could notB. or I could notC. not more than I couldD. nor could I7. Mr. Edward was not in, so his brother acted as _______ at the party.A. actorB. guestC. hostD. dancer8. ________ students often find it difficult to live in China at first.A. OutsideB. OverseasC. NationalD. Abroad9. His company promised to pay for his health _______ in addition to other benefits.A. examinationB. serviceC. checkD. insurance10. Many students found the book _____________; it provided them with a largeamount of information on the subject.A. informativeB. confusingC. distractingD. amusing11. As so many overseas business people have come to start and build new businesses,the place looks much more _________ than it did a few years ago.A. propertiedB. tediousC. prosperousD. unremarkable12. The girl has made up her mind to go abroad with her boyfriend despite herparents' _________.A. agreementB. allowingC. lettingD. objection13. My bag looks __________ to Mary's, so I often take hers by mistake.A. the sameB. identicalC. differentD. like14. I don't have courage to tell him the bad news to his face, so I have to do it in a(n)____________ way.A. directB. strangeC. indirectD. brave15. I can hardly believe my eyes. This ___________ man is actually a scientist whoonce won the Nobel Prize.A. remarkableB. unusualC. magnificentD. unremarkable16. Finding a job in such a big company has always been _____________ his wildest dreams.A. underB. overC. aboveD. beyond17. The chances of seeing a plane in my small hometown are one _____________ a million.A. forB. toC. inD. against18. There is a forecast that the _______ for a good crop harvest will be rather poor this year.A. prospectB. protectionC. proportionD. promise19. The box is too heavy, so _____________ give me a hand?A. would you mindB. will you like toC. will you please tooD. would you please20. An ______ of territory had always been a wish of the ruler of that country.A. introductionB. expansionC. intentionD. expectation21. The football match had to be _________ owing to (由于) the bad weather.A. cancelledB. advancedC. arrangedD. held22. There have been many ___________ in their marriage but they still love each other.A. ups and downsB. from head to toeC. time and againD. over and over23. I _______ Alice, who was on her way to see how I was getting along.A. came up withB. got out ofC. ran overD. ran into24. My parents are not interested in modern music. They are _______.A. before the dateB. behind the timesC. after the fashionD. against the tides (潮流)25. She has nothing to do with the murder case. She is not _______ it.A. concerned aboutB. related inC. involved inD. concerned in26. The _______ of the film star really disappointed her fans.A. preciousB. absenceC. presentD. absent27. __________ how little he had studied, he did very well in the exam.A. ThinkingB. Talking aboutC. SayingD. Considering28. The train for London will __________ from Platform 6 in ten minutes.A. leaveB. comeC. departD. remove29. You can put on your jeans. It is just a(n) ______ party.A. wonderfulB. incredibleC. formalD. informal30. He thought he could talk Mr. Robinson _______ buying some expensive equipment.A. toB. aboutC. intoD. on31. With the price ___________, the fruits are selling much better now.A. loweringB. is loweredC. having been loweredD. is being lowered32. "Are you going to the football game?""No. The tickets are _______ expensive for me."A. very muchB. so muchC. far tooD. highly33. This is an illness that can result in total blindness ________ left untreated.A. afterB. ifC. sinceD. unless34. I am not surprised at all that she chose the white skirt. She always has a _______ for white.A. preferB. preferableC. preferenceD. preferred35. Only members of the company are __________ to use the facilities.A. deservedB. entitledC. undertakenD. guaranteed36. Unless we get more money, we'll be ____________ finishing this project.A. separated fromB. recovered fromC. prevented fromD. charged from37. Having walked in the hot sun for most of the day without any water, the man felt____________.A. fatiguingB. having fatiguedC. fatiguedD. to have fatigued38. _______ Tom is supposed to make an appointment with the dentist, he says he is too busy.A. HoweverB. WhoeverC. WheneverD. Whatever39. If you are always ____________ to others' troubles, you won't get any helpwhenever you are in trouble yourself.A. indifferentB. regretfulC. romanticD. phenomenal40. The price they offered for my old car was so low that I _________ it down.A. broughtB. turnedC. calledD. refused41. Writing is a slow process, requiring _____________ thought, time, and effort.A. reasonableB. considerableC. memorableD. numerable42. When I try to understand _____________ that prevents so many Americans frombeing as happy as one might expect, it seems to me that there are two causes.A. why it doesB. why it isC. what it doesD. what it is43. He is _____________ to speak the truth.A. too fearfulB. so much fearfulC. too much fearfulD. so much of fearful44. He has failed me so many times that I no longer place any __ in what he promises.A. wishB. beliefC. creditD. trust45. After that they drove to the Guest House at __________ speed.A. topB. headC. wholeD. everyIII. Cloze:(1)The United states is a land of many __ 1 . Its people have come from different homelands and have 2 _ their own customs from all parts of the world. Although they live and work in a modern, ___3___ society, they want to 4 their traditions and pass them on to their children. So, in their daily lives, many Americans continue to speak their 5 _ language as well as English. They cook traditional foods. They practice their own religions and have their own way of thinking about life and death. In addition, they set __6_ time to celebrate the important occasions of their native culture with special ceremonies.Every part of the United States has special celebrations, depending on the 7 national groups that live in the area. In Hawaii, America’s island state in the Pacific Ocean, there are many people of Asian ancestry. Many of these Asians are of Japanese, Chinese, or Polynesian __ 8 . Immigrants from China and Japan arrived in Hawaii 9 great numbers during the past century. The early Polynesians came to Hawaii from South Pacific islands more than a thousand years before any other people. The Asians left rich traditions for their 10 to follow. Today, Hawaiians honor the memory of their ancestors with special feasts and festivals.1. A. states B. areas C. cultures D. fields2. A. brought B. had C. developed D. borrowed3. A. changed B. excited C. exciting D. changing4. A. prevent B. preserve C. predict D. protest5. A. negative B. necessary C. native D. narrative6. A. about B. off C. out D. aside7. A. ideal B. particular C. many D. active8. A. descent B. dessert C. desert D. decency9. A. for B. with C. by D. in10. A. residents B. delegates C. descendants D.representatives(2)There 1 two main kinds of sports. These two kinds of sports are team sports and individual sports. Team sports are such sports _ 2_ _ baseball, basketball, and volleyball. Team sports require two separate teams. The teams play ___3 each other. They compete against each other 4 get the best score. For example, in a football game, if team A gets 7 points and team B gets 3 points, team A 5 the game. Team sports are sometimes called competitive sports.Besides team sports, there is 6 main type, or kind, of sporting activity. The second type is individual sports. In 7 sports there are no teams. There isn’t any competition. People play individual sports in order to get exercise. They don’t play individual sports 8 competition. 9 speaking, they want to get some exercise, not to win a game. Individual sports are such sports as swimming, 10 , and running.1. A. is B. was C. are D. were2. A. for B. as C. in D. at3. A. against B. with C. to D. on4. A. for B. in order to C. as D. with5. A. lose B. win C. loses D. wins6. A. one B. a C. other D. another7. A. individual B. team C. football D. basketball8. A. for B. at C. to D. on9. A. General B. In general C. When D. Generally10. A. ski B. skiing C. to ski D. skis(3)Many Chinese students don't diverse enough attention to spoken English at school. They think it necessary to practice speaking English 1 class, but notout of class. Here is a story to show you how important it is to speak the English language __2___ in everyday life.A foreigner once got hungry and went into a restaurant in London. He sat down _3 . When the waiter came, he opened his mouth, put his fingers 4 it and took them out again in order to express that he wanted something to eat for he could not speak 5 .The waiter soon brought a cup of tea. The man shook his head. The waiter then took 6 the tea and brought a cup of coffee. The man again shook his head. The man tried again and again, but he wasn't able to make 7 understood. Finally another man came in. He spoke English ___8 . In a few minutes, there was a large plate of meat and vegetables on the table before him.So you 9_ , a man often goes hungry if he doesn't _ 10 a foreign language.1. A. from B. into C. in D. on2. A. correct B. free C. freely D. right3. A. at a table B. on a table C. at the table D. on the table4. A. upon B. into C. to D. onto5. A. Japanese B. French C. Chinese D. English6. A. over B. in C. away D. out7. A. that B. himself C. him D. it8. A. clearly and fluently B. clear and fluentlyC. clearly and fastD. clear and fast9. A. see B. understand C. look D. know10. A. know B. study C. master D. learn(4)You will find that college classes are very different from high school classes. You will have more work and responsibilities without being pushed as much. 1__, youwill have more freedom — freedom to choose what to study, when to study, or 2 to study. You will need to exercise maximum self-discipline (自律). This is the hardest kind of discipline because it is self-imposed (自我约束的), and you have only yourself to 3 . The decisions you make 4 your study habits will be a5 factor in your success, or lack of success in college.6 , you will discover that your instructors7 the ones you have had previously. They will expect you to8 more 8 in your study habits and time management. Remember that much of your learning takes place outside the classroom. Your instructor will give you additional help outside of class if there is evidence that you are putting maximum effort into the course.Success in anything will not just happen. 9 your abilities and skill mastery, you will need to manage your time effectively in order to succeed in college.A schedule 10 efficient use of time will enable you to include both work and play. When you get a job, you will soon discover that you do not work only when you wish and as you wish.1. A. On the other hand B. On the one had C. Nevertheless D. Therefore2. A. if B. how C. why D. who3. A. turn for B. answer to C. respond to D. act as4. A. of B. to C. with D. concerning5. A. determining B. demanding C. deciding D. depending6. A. However B. Nevertheless C. In addition D. Except that7. A. differ from B. are similar to C. differ in D. are alike8. A. take …out B. throw … yourself C. plunge … yourself D. take…initiative9. A. In spite of B. ConcerningC. Regardless ofD. On the condition of10. A. related to B. carried on C. relied on D. based onIV. Translate the following sentences from Chinese into English:1. She was very guilty about not having understood her best friend.她误解了自己最好的朋友, 感到非常内疚。
【英语等级考试】全国公共英语等级考试(2级)模拟试题及答案6PETS Level 2 Simulated Test(6)全国公共英语等级考试(2级)模拟试题(6)第二部分:英语知识运用第一节:单项选择从A、B、C、D四个选项中,选出可以填入空白处的最佳选项,并在答题卡上将该项涂黑.1.-How about the book you are reading ?-Good , indeed . It ________many problems we have come across in our study.A. saysB. talksC. coversD. refers2. I'd like to take my picture ________stands a high tower.A. whereB. whichC. thatD. there3. I'd like to buy a house, modern and comfortable, and __________, in a quiet place.A. afar allB. above allC. in allD. for all4. -You've got a good result in your research, haven't you?-Yes , but much ________ .A. remains to doB. is remains to doC. remains to be doneD. has remained to do it5. -I must be leaving now. It'll be 3 hours' drive to get there.-__________.A. Good-byeB. Take careC. Take it easyD. What can I do for you6. Nobody could have guessed , in those days , the place in history that Martin Luther King, Jr____.A. was havingB. was to haveC. had hadD. had7. The queen will visit the town in May , ________ she will open the new hospital.A. whenB. thenC. whileD. but8. I'll come , ________ I don't expect to enjoy myself.A. ifB. sinceC. asD. though9. You _________in such a hurry just now. Look, there is plenty of time left.A. don't have to do itB. needn't have done itC. wouldn't do itD. mustn't have done it10. _____________is one of the five working language at U.N. , which _______ are veryproud of.A. The Chinese, the ChineseB. Chinese language, ChineseC. Chinese, the ChineseD. Chinese language, the Chinese11. -What's your problem ?- I have lost sight of my mum and dad . I saw them ________ in front of me a moment ago.A. were walkingB. to have walkerC. walkD. walking12. Children are tired of learning often because they are __________to do more than they can.A. expectedB. suggestedC. hopedD. wished13. _________ concerts will be needed if we wanted to collect enough money to start a school.A. Some other tenB. Another tenC. Other tenD. Ten others14. The door burst open and ________ , shouting with anger.A. in rushed the crowdB. rushed in the crowdC. the crowd tin rushedD. in the crowd rushed15. We carved their names on the stone so that younger generations could know whattheir forefathers ____ for the nation.A. didB. were doingC. had doneD. have been doing第二节:完形填空阅读下面短文,从短文后所给各题的四个选项(A、B、C、D中选出能填入相应空白处的最佳选项,并在答题卡上将该项涂黑.In its home country of Germany, the hot dog was called the frankfurter. It was named 16 Frankfurt, a German city.Frankfurters were first 17 in the United States in 18 . Americans called frankfurters "dachshund sausages"(达克思香肠).A dachshund is a dog from Germany 19 a very long body and short legs. Dachshund sausages first 20popular in New York, 21 at baseball games. At games they were sold by men 22 kept them 23 in hot-water tanks.As the men walked 24 the rows of people , they yelled , "Get your dachshund sausages ! Get your hot dachshund sausages !" People got the sausages on 25 , a special bread.26 in 1906 a newspaper cartoonist 27 Tad Dorgan went to a baseball game. 28 he saw the men with the dachshund sausages, he got an idea 29 a cartoon. The next day at the newspaper office he 30 a bun witha dachshund inside ---31 a dachshund sausage,32 a dachshund. Dorgan 33 how to spell dachshund . Under the cartoon, he wrote "Get your hot dogs !"The cartoon was a sensation(轰动) , and 34 .If you go to a baseball game today, you can still see sellers walking 35 with hot-water tanks. As they walk up and down the rows they yell."Get your hot dogs here! Get your hot dogs !"16. A . with B. after C. by D. of17. A. got B. sold C. bought D. make18. A. the 1860s B. 1860's C. the 1860 D. 1865s19. A. by B. of C. at D. with20. A. gained B. stayed C. became D. were turned21. A. special B. especially C. certainly D. surely22. A. those B. which C. what D. who23. A. cool B. hot C. warm D. cold24. A. sometimes B. up and down C. someday D. here and there25. A. buns B. the tops C. coffee D. chocolates26. A. A day B. Any day C. Certain D. One day27. A. who is B. was C. was called D. named28. A. When B. While C. If D. Whether29. A. to B. as C. with D. for30. A. called B. made C. drew D. bought31. A. no B. without C. not D. for32. A. except B. but C. and D. except for33. A. didn't know B. wonders C. was sure D. never knows34. A. so the new name was B. so is the cartoonistC. so was the new nameD. the new name was so35. A. over B. around C. fast D. all day第三部分:阅读理解( A )What are some of the steps a person can take to prevent his house from being broken into while he is away? One step is to make sure that the house seems a lived-in one. Living room curtains should be pulled down only half-way. Bedrooms that usually have the curtains pulled down at night should be left down . Another is to make sure that all outside locks are the dead-bolt type (双保险) . Still another is to leave several 100W lights burning and make sure that one is in the kitchen.Lights that turned on and off by themselves are the best. Then, too, it is a good idea to leave the radio turned on and set to a talking station. Any type of speaking makes a thief think twice before trying to enter. Finally, while away on holiday, make sure that nothing collects in front or in the house. Particularly, make certain that the newspaper is stopped and thata trusted neighbour has been asked to pick up the mail. Thieves are especially quick to notice piled-up newspapers and overpiled mail boxes.36. Why did the writer begin this piece with question?A. Because he wanted to catch the readers' attention.B. Because he wanted to have the readers guess the answer before reading.C. Because he wanted to sum up (概括) the topic of the piece.D. Because he wanted to make the readers understand him better.37. The word "live-in" in this passage means ______________.A. left emptyB. lively and cheerfulC. now being used by peopleD. laid inside38. What does the writer advise the people to do?A. Ask a neighbour to pick up the daily mailB. Make sure to have lights that turn on and off by themselves.C. Make sure the newspaper is handed over every day.D. Pull the living room curtains down.39. The most important room to leave a light burning in is the _________.A. bedroomB. kitchenC. living roomD. sitting-room( B )Mr Richards has worked in a small seaside town for about ten years and he and his wife have a comfortable house near the sea.During the winter they would be quite happy, but every summer a lot of their relatives used to spend holiday in their house, and it was much cheaper than staying in hotel . Finally one day in June Mr Richards complained to a clever friend of his who lived in the same place. "One of my wife's cousins is going to bring her husband and children and spend ten days with us next month again. How have you prevented all your relatives from coming to live with you in summer ?" "Oh,"the friendanswered, "that is not difficult. I just borrow money from allthe rich ones, and lend it to all the poor ones. After that, they seldom come again." Hearing this Mr Richards smiled.40. The relatives preferred to stay in Mr Richards' house because _____________.A. it was cool in summerB. they might spend less moneyC. they were more welcomeD. it was a comfortable place41. According to his friend's opinion, the poor relatives would stop going there so often because ________ .A. they were shy to borrow money againB. hey were afraid to be asked to pay off the debtsC. they had been ill-treatedD. it wasn't happy for the poor to meet the rich42. The best title for this passage is ___________.A. Such a Clever FriendB. Mr Richards and his FriendC. Money is ImportantD. Such Good Usage of Money43. After reading the passage we can infer _____________.A. Mr Richards still complains about the coming of his relatives in summerB. The friend of Mr Richards' hadn't as many relatives as RichardsC. Gradually Mr Richards succeeded in keeping his relatives out in summerD. sNone of Richards' relatives came to the seaside town for their holidays again( C )I wonder why American towns looks so much alike that Isometimes mix them up in my memory. The standard influence(影响)of massproduction whose agents(代理商)are the travellingsalesman, the mail-order house, the five-and-ten cent stores, the chain stores, the movies can hardly explain it. If you stay two days in Bologna and in Ferrare, or in Arles and in Avignon, you will never mix them up in all your life. But it may well happen that after you spend two days in St.Louis and in Kansas City the appearances of these two cities soon mix up. I thinkthe reason for this is that these towns have not yet had time enough to develop their own characters. Similarly, children are much less different from each other than grown people.44. Which two of the following towns look so much alike?A. Bologna and FerrareB. Arles and AvignonC. St. Louis and Kansas CityD. Bologna and St. Louis45. In line 4 the word "it" refers to ____________.A. standard of townsB. similarity of townsC. people's memoryD. mass production46. American towns look very much alike because of ____________.A. the standard influence of mass productionB. their different appearancesC. not being fully developedD. having everything in common( D )Millions of stars are travelling about in space. A few form groups which journey together, but most of them travel alone.And they travel through a universe so large that one star seldom comes near to another. For the most part each star makes its journey in complete loneliness, like a ship on an empty ocean. The ship will be well over a million miles from its nearest neighbor. From this it is easy to understand why a star seldom finds another anywhere neat it.We believe, however, that some two thousand million years ago, another star wandering(漫游) through space, happened to comenear our sun, Just as the sun and the moon raise tides(潮汐)on the earth, so this star must have raised tides on the surface of the sun .But they were very different from the small tides that are raised in our oceans; a large tidal wave must have travelled over the surface of the sun, at last forming a mountain so high that we cannot imagine it. As the causeof the disturbance(动荡) came nearer, so the mountain rose higher and higher. And before the star began to move away again, its tidal pull had become so powerful that this mountain was torn to pieces and threw off small parts of itself into space.These small pieces have been going round the sun ever since. They are the planets(行星).47. Millions of stars are _______________.A. following a regular path in spaceB. moving about without a fixed courseC. seldom wandering about in the universeD. always travelling together48. Some two thousand million years ago, the mountain onthe sun was raised probably because __________.A. a large tidal wave of a star travelled over the surface of the sunB. another star happened to come near the sunC. the sun and the moon raised the tides on the earthD. the star moved away from the sun49. The article suggests that _____________ .A. our earth exists before the sunB. how space formedC. no one knows where the earth comes fromD. our earth used to be a high mountain on the sun50. The expression "the cause of the disturbance" refers to _________.A. the large tidal waveB. the powerful tidal pullC. the star coming near the sunD. one of the sun's planets51. In this article, the writer mainly wants to tell the readers __________.A. that the universe is so large that we cannot imagine itB. how the high mountains were formed on the sunC. why the tides over the surface of the sun were so powerfulD. where the planets in the universe came from( E )Contacts(交往) between Japan and the rest of the world have grown a great deal in the twentieth century. In the last thirty years, business contacts between Japan and the West have become very important. Many foreign companies now have offices inJapan and Japanese businessmen do business around theworld.Differences between Japanese and Western ways of doing business, however, often bewilder the foreign businessman and makedoing business in Japan difficult for foreigners.The American businessman, for example , wants of start talking business immediately . He wants quick decisions. He does notwait. The Japanese, on the other hand , likes to arrive at decisions gradually after giving them a great deal of thought.Another thing foreign businessmen have difficulty in understanding is when a Japanese means "Yes" or "No". This is becauseof cultural difference for a Japanese to say "No" directly.In English, it is easy to say "No" to something we do not want to do. But in Japan it is very difficult to say "No". Torefuse an invitation or a request with "No", or a similar phrase, is felt to be impolite. It is thought to be selfish(自私)and unfriendly. So instead of saying "No" directly, the Japanese have developed many ways to avoid saying "No". These enable them to avoid hurting other people's feeling. However, this often makes communication with the Japanese difficultfor foreigners to understand and follow.52. Paragraph one tells us that ______________ .A. It is not always easy for foreigners to do business in JapanB. Japan is a very important country for businessmenC. business contacts between Japan and the West are importantD. Japanese businessmen do business all around the world53. The word "bewilder" in paragraph 2 probably means _________.A. tireB. interestC. puzzleD. surprise54. From the passage we can know that _____________.A. American businessmen do things more quickly than Japanese onesB. American businessmen like to say "Yes" and "No"C. Americans usually say what they are thinkingD. Americans do not express themselves clearly55. The passage tells us that ________.A. Japanese businessmen are good at businessB. foreign businessmen should first try to understand JapaneseC. foreign businessmen must be more politeD. if you want to succeed you must learn from Japan第四部分:写作第一节:短文改错此题要求改正所给短文中的错误。
a r X i v :0803.3888v 2 [c o n d -m a t .s t a t -m e c h ] 1 A p r 2008The effects of next to nearest neighbor hopping on Bose-Einstein condensation incubic latticesG.K.Chaudhary and R.RamakumarDepartment of Physics and Astrophysics,University of Delhi,Delhi-110007,Delhi,India(27March 2008)In this brief report,we present results of our calculations on the effects of next to nearest neighbor boson hopping (t ′)energy on Bose-Einstein condensation in cubic lattices.We consider both non-interacting and repulsively interacting bosons moving in the lowest Bloch band.The interacting bosons are studied making use of the Bogoliubov method.We find that the bose condensation temperature is enhanced with increasing t ′for bosons in a simple cubic (sc)lattice and decreases for bosons in body-centered cubic (bcc)and face-centered cubic (fcc)lattices.We also find that interaction induced depletion of the condensate is reduced for bosons in a sc lattice while is enhanced for bosons in bcc and fcc lattices.PACS numbers:03.75.Lm,03.75.Nt,03.75.Hh,67.40.-wI.INTRODUCTIONStudies of Bose-Einstein condensation in optical lat-tices and crystalline lattices is an active field of researchboth in atomic 1–3and condensed matter physics 4–10.In condensed matter physics,there have been extensive studies of bose condensation of bipolarons 4,exctions 5,exciton-polartions 6,7,and magnons 8–10.Studies of bosons in optical lattices may be said to have re-ceived a boost with the demonstration of bose condensed to Mott insulator transition 2predicted in theoretical studies 1,11–14of strongly interacting lattice bosons.In the presently available optical lattices,it has been shown 1that it is sufficient to include nearest-neighbor (NN)hop-ping of bosons in the kinetic energy part of the Hamil-tonian of the system.Nevertheless,considering the fast pace of developments in this field,it may be useful to investigate the effects of the next to nearest-neighbor (NNN)hopping on bose condensation in optical and crys-talline lattices.Recently,we presented a study of the lattice symmetry effects on bose condensation in cubic lattices 15.In that work,we had confined to NN hop-ping of lattice bosons.In this note,we extend this work including NNN boson hopping.In the next section,we describe the models and methods used in our calculations along with a discussion of results.The conclusions are given Sec.III.II.BOSE CONDENSATION IN CUBIC LATTICESWITH NNN HOPPINGNon-interacting bosons :Consider bosons moving in cu-bic lattices.The energy eigen-functions of a single bo-son moving in a periodic optical or crystalline lattice po-tential are Bloch waves 16and energy eigen-values form bands.The Hamiltonian of non-interacting bosons in an energy band is:H =k[ǫ(k )−µ]c †k c k ,(1)where ǫ(k )is the one-boson energy band structure,k is the boson quasi-momentum,µis the chemical potential,and c †k is a boson creation operator.Within a tight-binding approximation scheme 17,including the NN and the NNN Wannier functions overlaps,the s -band struc-tures we consider for cubic lattices are:ǫsc (k x ,k y ,k z )=−2tzµ=x cos(k µ)−2t′z µ=x zµ=ν,ν=xcos(k µ)cos(k ν),(2)ǫbcc (k x ,k y ,k z )=−8t zµ=xcosk µ2cosk νN x N y N zk xk yk z1k B T−1,(5)where N s =N x N y N z is the total number of lattice sites,k B is the Boltzmann constant,T is the temperature,andn is number of bosons per site.We have numerically solved the bosons number equation (Eq.5)to obtain the bose condensation temperature and ground state oc-cupancy.The results of these calculations for various lattices considered are shown in Fig.1.0.30.4 0.5 0.6 0.7 0.80.9 1 00.020.040.060.080.1K B T /Wt’FIG.1.The bose condensation temperature vs NNN hop-ping t ′for noninteracting bosons in various cubic lattices.The curves are shown for:sc (red),bcc (green),and fcc (blue).These results are for n =0.4.In this and other figures W is the half-band-width.We find that t ′increases the bose condensation temper-ature of bosons in a sc lattice.For bosons in bcc lattice the T B decreases with increasing t ′.For bosons in a fcc lattice also increasing t ′more or less leave T B unaltered.0.2 0.4 0.60.8 10 0.2 0.4 0.6 0.8 1 1.2C o n d e n s a t e F r a c t i o nK B T/WFIG.2.The variation of condensate fraction with temper-ature (T)for bosons in a sc lattice with NNN hoppings t ′:t ′=0(red),t ′=t/10(green).Here n =0.4.0 0.2 0.4 0.6 0.8 11.2 1.4 00.20.40.60.81K B T B /WnFIG.3.The bose condensation temperature vas n for bosons in a sc lattice with NNN hopping t ′:t ′=0(red),t ′=t/20(blue),t ′=t/10(green).The growth of the condensate fraction and the number dependence of T B for bosons in a sc lattice shown in Fig.2and Fig.3are similar to that found for the case of t ′=015.Similar results are obtained (not shown)for bosons in bcc and fcc lattices.Interacting bosons :The Hamiltonian of interacting bosons is H =k[ǫ(k )−µ]c †k c k +U2N s′ k1+ξ(k )+Un 0e E (k )2N s′ k1−ξ(k )+Un 0e−E (k )ξ2(k )+2Un 0ξ(k ).The primes onthe summation signs indicates that the sums excludes the k =0state in to which the bosons condense.The con-densate fraction for bosons in various cubic lattices are shown in Fig.4-6.0.80.82 0.84 0.86 0.88 0.9 0.92 0.94 0.96 0.98 1 00.511.52C o n d e n s a t e F r a c t i o nU/W FIG.4.The variation of Condensate fraction (for T=0and n=0.4)with U/W of weakly interacting bosons in a sc lattice with NNN hoppings t ′:t ′=0(red),t ′=t/20(blue),t ′=t/10(green).For bosons in a sc lattice,we find that interaction in-duced depletion of the condensate is reduced with in-creasing t ′as shown in Fig.4.For bosons in a bcc lattice (Fig.5),increasing t ′is found increase the interaction in-duced depletion.In the case of bosons in an fcc lattice,the effects of increasing t ′does not have much effect on condensate fraction as shown in Fig. 6.The bose con-densation temperature is unaffected by the interaction in the Bogoliubov method.0.80.82 0.84 0.86 0.88 0.9 0.92 0.94 0.96 0.98 10.511.52C o n d e n s a t e F r a c t i o nU/WFIG.5.The variation of Condensate fraction (for T=0and n=0.4)with U/W of weakly interacting bosons in a bcc lat-tice with NNN hoppings t ′:t ′=0(green),t ′=t/20(blue),t ′=t/10(red).0.80.82 0.84 0.86 0.88 0.9 0.92 0.94 0.96 0.98 10.511.52C o n d e n s a t e F r a c t i o nU/WFIG.6.The variation of condensate fraction (for T=0and n=0.4)with U/W of weakly interacting bosons in a fcc lattice with NNN hoppings t ′:t ′=0(green),t ′=t/20(blue),t ′=t/10(red).III.CONCLUSIONSIn this brief report,we investigated the effects of NNN hopping of non-interacting and interacting bosons in cubic lattices on bose condensation temperature and ground state occupancy.We find that the bose con-densation temperature is enhanced with increasing t ′for bosons in a simple cubic (sc)lattice and decreases for bosons in body-centered cubic (bcc)and face-centered cubic (fcc)lattices.We also find that interaction induced depletion of the condensate is reduced for bosons in a sc lattice while it is enhanced for 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