often

摘要： 重点知识园地。重点单词1.hardly adv.几乎不;几乎没有I hardly know you.我几乎不认识你。辨析:hardly和hard hardly几乎不;几乎没有hard努力地;困难地He hardly works.他几乎不工作。He works hard.他工作努力。

摘要： (一)My Father My father was bom in 1940. He was a son of a teacher. He lived in Sichuan Province when he was young, Later he left for Xinjiang at the age of twenty, and has lived there until now.Myfather is thin, not tall, and has a serious-looking face. Though he''s sometimes bad temered, he is a very good man at heart. He shows deep concern for others and often helps them out of their difficulties. For this reason his colleagues and our neighbours like him very much. They call him a man of Leifeng type.

摘要： 要点梳理一般过去时表示在过去某个时间或过去某一段时间内发生的动作或存在的状态。一、一般过去时的标志1.一般过去时常和表示过去某时间的状语连用,如yesterday、yesterday morning / afternoon / evening、last night、in 1995、two days ago、just now等;也可与often或always等表示频度的状语连用,用来表示过去经常发生的动作。

摘要： How Often Do You Cry?Lucy is a six-year-old girl. She likes crying. Gradually, her grandma feels impatient. She says to Lucy,"Don''t cry, dear. If you often cry, you will be ugly!" Lucy soon stops crying. She asks curiously,"Grandma, how often do you cry?"

摘要： 【Communicative Competence and Profi原 ciency】 Although Hymes蒺s original paper was not concerned with language teaching, but with providing a theoretical framework which could describe the knowledge and capabilities of the successful language user, his model has exerted a considerable influence on all aspects of language teaching and assessment, including overall approach (Widdowson, 1978;Brumfit and Johnson, 1979), syllabus design (Johnson, 1982), methodology (Johnson and Morrow, 1981) and testing (Spolsky, 1989;Bachman, 1990). CC is often conflated with proficiency and equated with the knowledge of the NATIVE SPEAKER presented as the final (if usually unattainable) goal of language learning (for further discussion see Davies, 1996). Models for LANGUAGE TESTING are often close to models of CC, and exhibit the same theoretical problems concerning taxonomies of components: a danger of an open-ended proliferation of terms, difficulty in distinguishing knowledge from ability for use, and a need to specify relations between one component and another.

摘要： 【cognitive variables】 One of the three areas considered to make up the INDIVIDUAL DIFFERENCES between learners which influence the degree of success in foreign language learning is the cognitive area. The main cognitive variables are INTELLIGENCE and APTITUDE, but MEMORY is often also included, as is the ability to utilize general learning mechanisms.(See also COGNITIVE STYLE.) An issue in this research area is how learner characteristics interact with teaching methods. It may not be, for example, that the intelligent learn languages better, but that they can benefit more from types of tuition which assume use of intelligence.

摘要： Introduction‘Life always makes us black and blue,but those painful things will make us stronger until we came through.’Hemingway once wrote.Nonetheless,is this true?Perhaps we do recover from pain but sometimes it could kill us.As for a typical high school student in an elite school in China,I feel anxiety everywhere.The pressure from classmates,teachers,parents and even from friends could easily turn something small into a serious issue.This kind of issue will finally lead to negative emotions that strongly affect students’academic behaviors and attitudes toward lives.In fact,this situation is being more and more prevalent among today’s Chinese high school students.Signs of students’anxiety Anxiety is defined as a subjective sense of fear,distress,or worry that may exhibit both physical sensations(e.g.,headaches or nausea)and emotional symptoms(e.g.,fear or nervousness)(American Psychiatric Association[APA],2000).Studies have shown that when students feel nervous,afraid,panic,it could be the symptoms of anxiety.Meanwhile,these students often feel worried,tired,dizzy and easier to have bad dreams.Besides,anxiety could have significant influence on students’behaviors on their academic performance and productivity.

摘要： 授课对象：八年级学生指导老师：陈新（陕西省西安市碑林区教师进修学校中学教育部主任、碑林区中学英语教研员）一、教学内容本堂课的教学内容是人教版新目标初中《英语》（八上）Unit 2 How often do you exercise？The Fourth Period Section B（1a—1e）。本单元主要围绕＂How often do you...？＂句型展开对个人生活习惯的讨论,Section B部分主要对个人的生活方式进行谈论。

摘要： 一、考查一般现在时的用法 考点说明：一般现在时常表示现在持续性动作或存在状态,多以now、atpresent等时间状语为标志.一般现在时还可表示现阶段经常发生的动作或存在的状态,常以often、sometimes、usually、always、seldom、everyday等频度副词为标志.一般现在时还可以表示不受时间制约的客观事实或普遍真理.

摘要： If you look at the night sky,you'll often see stars moving very quickly.In fact,they move much more quickly than they should,according to their size and the laws of physics.Scientists do not completely understand why the speed of these stars is so high.But many believe the reason is because much of the universe is made of something called"dark matter."Groups of stars called galaxies[星系],such as the Milky Way,might even consist of90%dark matter.

摘要： 本发明涉及气垫船运动控制领域，具体涉及的是一种基于纵向速度规划的气垫船高速回转控制方法。本发明采用基于侧滑角约束的航速规划方法解决了气垫船采用传统非线性反馈控制在高速回转时的失速问题，能够保证气垫船在回转的同时实现精确的航速跟踪，提高了气垫船的机动性和作业能力，本发明在保证气垫船在高速回转过程中准确跟踪期望艏向的同时避免回转率过大导致的甩尾现象，提高了气垫船在高速回转时的可靠性和安全性。

摘要： 本发明适用于材料技术领域，提供了一种低光泽度聚氯乙烯材料及其制备方法、应用，其中，所述低光泽度聚氯乙烯材料包括以下重量份数的原料：聚氯乙烯树脂80～100份、稳定剂1～10份、增塑剂4～15份、加工助剂0.8～5份、改质剂4～15份、消光剂0～5.5份以及润滑剂0.5～5份。本发明通过稳定剂、增塑剂、加工助剂、改质剂、消光剂以及润滑剂各原料的合理配比，配合特定种类的聚氯乙烯树脂，所得到的低光泽度聚氯乙烯材料，不仅易于加工成型、且具有较为优异力学性能，且低光泽度，耐温以及成本低；另外，通过消光剂的加入可进一步降低材料光泽度的同时，进一步提高本发明聚氯乙烯材料机械力学性能，具有很好的经济效益。

摘要： 本发明涉及光纤耦合技术领域，尤其涉及一种高效率的叠阵型半导体激光器，包括激光源、光束整形组件、会聚透镜、鲍威尔棱镜组件和光纤；所述激光源发出的光束经过光束整形组件进行整形；整形后的光束经会聚透镜会聚，会聚后光束经过鲍威尔棱镜组件进行光束整形可以耦合进光纤的光束。本发明系统结构简单,便于操作,减少了操作步骤,光纤耦合效率达到84.3％。

摘要： 本申请公开了一种变频空调控制方法、装置、电子设备和介质。其中方法包括：获取空调的设置温度值，获取当前室内温度值；根据所述设置温度值、所述当前室内温度值和预设偏差阈值，确定所述变频空调的系统负荷率；获取当前室外温度值，获取所述变频空调的目标器件的信息；依据所述当前室外温度值、所述目标器件的信息以及所述系统负荷率，确认总传热温差；以达到所述总传热温差为目标，对所述变频空调的制冷系统进行控制，可以控制空调系统在不同负荷率下、不同室外温度值下运行在比较高的能效，实现空调系统节能运行。

摘要： 本发明涉及兽医生物技术领域，尤其涉及一种猪轮状病毒重组蛋白以及表达该蛋白的重组腺病毒和应用。所述所述重组蛋白由猪轮状病毒5型VP7蛋白和猪轮状病毒9型VP8蛋白连接组成，具体包括如SEQ ID NO:1所示的氨基酸序列。本发明将猪轮状病毒5型VP7蛋白和猪轮状病毒9型VP8蛋白的编码基因的基因序列构建至腺病毒表达载体中，并进行密码子优化，制备得到针对猪轮状病毒的重组腺病毒，该重组腺病毒表达的目的蛋白的结构和功能与天然状态完全一致，具有较高的安全性和免疫原性。

摘要： 本发明公开了一种改性TPEE电缆料及其制备方法，所述改性TPEE电缆料，按重量份数计，其组分包含改性TPEE100份，阻燃剂50‑100份，阻燃协效剂2‑10份，润滑剂1‑5份，抗氧剂1‑5份，助剂5‑10份。本发明提供的改性TPEE电缆料通过对TPEE接枝功能化石墨烯，以及对阻燃剂氢氧化镁进行改性，使其兼具优异的阻燃性能，力学性能，热老化性能以及加工性能，并且可回收利用，环境友好。

摘要： 本发明公开了一种路线规划方法，包括：获取N个订单的物流信息，所述物流信息包括订单地址，所述订单地址包括第一地址以及第二地址，其中，所述第一地址为目的地在直送范围内的地址，所述第二地址为目的地在直送范围外的地址，N为正整数；筛选出所述订单地址为所述第一地址的M个订单，确定配送M个订单的第一初始路线，对所述第一初始路线进行优化，得到第一优化路线，M为小于等于N的正整数；筛选出所述订单地址为所述第二地址的N‑M个订单，确定配送所述N‑M个订单的第二初始路线，对所述第二初始路线进行优化，得到第二优化路线。

摘要： 本发明公开了一种芳砜纶/四氧化三铁磁性长丝的制备方法，包括如下步骤：四氧化三铁磁性纳米颗粒制备、芳砜纶/四氧化三铁共混纺丝液制备、湿法纺丝，得到具有不同截面形状的磁性长丝。本发明可以实现芳砜纶的连续化湿法纺丝，制备过程温和可控；本发明将四氧化三铁磁性颗粒结合到芳砜纶纤维中，可以实现芳砜纶纤维的功能化，使得芳砜纶纤维具备磁性；本发明采用蛋白模板调控法制备四氧化三铁磁性颗粒，实现四氧化三铁磁性颗粒形貌及尺寸调控，同时使得纳米颗粒在纺丝液中分散均匀性；本发明制备的芳砜纶/四氧化三铁磁性长丝可用于保健、过滤、智能纺织品等领域。

摘要： 本发明属于污水处理技术领域，尤其是涉及一种污水水质预处理快速检测装置，包括检测水箱，检测水箱内壁上固定连接有第一竖板和第二竖板，第一竖板和第二竖板将检测水箱分隔成处理腔室、检测腔室和储存腔室，处理腔室内底壁上固定连接有向下延伸的梯形凸起，且梯形凸起内形成沉淀腔室，梯形凸起的下端固定连接有两根竖直的排污管，检测水箱的侧壁上固定连接有与处理腔室连通的污水进水管。优点在于：本发明可以对不同分层的污水进行水质检测，且多层之间的检测过程均为独立过程，不会出现相互之间的影响，能够对污水进行实时的检测，有助于后续的数据统计，另外采用分级式的检测方式，能够有效的对污水进行全面的检测，提高检测的质量。

摘要： 本发明公开了一种软硬件联合验证系统及方法。该系统包括：驱动软件、基于systemc模拟的存储器和异构集群；驱动软件嵌入在systemc框架中；驱动软件根据预设验证需求向异构集群发送驱动指令；存储器加载并保存待验证数据；异构集群根据驱动指令从存储器中提取待验证数据，计算得到输出数据，发送至驱动软件；驱动软件根据输出数据进行软硬件的联合验证。通过systemc模拟异构集群，驱动软件嵌入systemc框架，为驱动软件提供与硬件功能相等的模型，实现驱动软件对硬件的控制流程，协助软件前期的开发与调试，为硬件提供标准数据。解决了现有技术中软件与硬件在大多数的系统开发中分开进行，导致开发周期长的技术问题。