Introduction:
Example 1:
Can a black lawyer, a Chinese fashion designer, and a white school teacher live happily side by side as neighbors? Can a racially integrated community achieve the dream of brotherhood and understanding? An experiment in a small town in Connecticut is providing some extraordinary answers.
Example 2:
Hegel, the German philosopher, says, “We learn from history that men never learn anything from history.” This wry remark has been confirmed time and again by historical events, one of which is Hitler's invasion of the Soviet Union. He must have utterly forgotten or willfully ignored the great disaster Napoleon brought upon himself by attacking Russia early in the nineteenth century.
Conclusion:
Example 3:
Between the inconvenient hour, the constant conflicts with the boss, and the tedious work, my job was a nightmare. True, the pay was handsome, but I know I will do everything possible to avoid working in such a place again.
e.g 4.
Is there nothing to be done? Certainly, wherever possible we should separate nonsmokers from smokers and provide ventilation. We do so now on big airplanes. But in most other places, in offices and restaurants, for instance, smokers and nonsmokers will have to rely on mutual tolerance. Courtesy cannot be rep laced by one-sided and unenforceable regulations which, even if temporarily effective, will in the long run simply discredit the law.
E.g 5
Men working in the women-dominated fields may be making life easier for the
women. Men get together and are willing to fight for more money. When more and more men enter those fields, we will see salaries and the whole status of the jobs improve.
E.g 6
As you can see, making a model airplane is really not a difficult task. If you give it a try, I can assure you that the results will be well worth your trouble. Not only will you be the proud owner of a beautiful model airplane, but you will have a sense of creativity and accomplishment. Try it and you will get your reward.
全国2018年1月高等教育自学考试 英语写作基础试题 课程代码：00597 I. Correct the errors in the following sentences.(改写病句)10% Example: After seeing an offensive mouthwash ad on television .I resolved never to buy that brand again. After seeing an offensive mouthwash ad on television, I resolved never to buy that brand again. 1.Those berries are poisonous don’t eat them. 2.Our city’s buildings are not as modern as your city. 3.To get ready for the trip, all the things she needed were put into a suitcase. 4.He told me that Mary had returned home for a week. 5.I read the book on the bus which did not interest me at all. II. Read the following passages and identify the topic sentence in each by underlining it.(阅读以下每段文章，然后在每段文章的主题句下划线。)20% 1. The biggest problem in ancient DNA reserch is getting the DNA in the first place. The favorite material to work with is bone, and a small chunk of it is best. Cells can lie inside the hard bone structure waiting to be liberated after the calcium has been dissolved away. That’s the easy bit. Getting the DNA out, what little of it that remains is horrendously difficult and many teams have succumbed to pitfalls in the past. The rule is that it has to be done in a clean room better than used to assemble spacecraft to go into deep space, and it has to be done away from any other source of potentially contaminating DNA. 2. Names usually have origins, especially for Indians. Indians with distinctive physical characteristics, might be given names such as Big Foot or Crooked Leg. If there had been a big storm on the day of a baby’s birth, the baby might have been named Thundercloud. Grey Eagle, Red-Dog, Big Bear, and Spotted Wolf are examples of Indian names after animals. 3. Many TV commercials imply that a woman’s self-esteem depends on her cleaning ability. In one commercial, we see a woman terribly upset because her guests find spots on her glassware. Countless other commercials blur out the message that a woman will pass muster as a person if her kitchen floor gleams and her toilet bowl is blue. This idiocy must work, because the images of women scrubbing, moping, waxing and smiling keep on coming over the air. 4. As human beings, we are constantly in the stage of change. Our bodies change everyday. Our attitudes are constantly evolving. Something we swore by five years ago is now almost impossible for us to imagine ourselves believing The clothes we wore a few years ago now look strange to us in old photographs. Everything is changing. This is a prediction I can make with absolute certainty. 1
牛顿第二定律【学习目标】 1.深刻理解牛顿第二定律，把握 F a m =的含义． 2.清楚力的单位“牛顿”是怎样确定的． 3.灵活运用F＝ma解题． 【要点梳理】 要点一、牛顿第二定律 (1)内容：物体的加速度跟作用力成正比，跟物体的质量成反比． (2)公式： F a m ∝或者F ma ∝，写成等式就是F＝kma． (3)力的单位——牛顿的含义． ①在国际单位制中，力的单位是牛顿，符号N，它是根据牛顿第二定律定义的：使质量为1kg的物体产生1 m/s2加速度的力，叫做1N．即1N＝1kg·m/s2． ②比例系数k的含义． 根据F＝kma知k＝F/ma，因此k在数值上等于使单位质量的物体产生单位加速度的力的大小，k的大小由F、m、a三者的单位共同决定，三者取不同的单位，k的数值不一样，在国际单位制中，k＝1．由此可知，在应用公式F＝ma进行计算时，F、m、a的单位必须统一为国际单位制中相应的单位． 要点二、对牛顿第二定律的理解 (1)同一性 【例】质量为m的物体置于光滑水平面上，同时受到水平力F的作用，如图所示，试讨论： ①物体此时受哪些力的作用? ②每一个力是否都产生加速度? ③物体的实际运动情况如何? ④物体为什么会呈现这种运动状态? 【解析】①物体此时受三个力作用，分别是重力、支持力、水平力F． ②由“力是产生加速度的原因”知，每一个力都应产生加速度． ③物体的实际运动是沿力F的方向以a＝F/m加速运动． ④因为重力和支持力是一对平衡力，其作用效果相互抵消，此时作用于物体的合力相当于F． 从上面的分析可知，物体只能有一种运动状态，而决定物体运动状态的只能是物体所受的合力，而不能是其中一个力或几个力，我们把物体运动的加速度和该物体所受合力的这种对应关系叫牛顿第二定律的同一性． 因此，牛顿第二定律F＝ma中，F为物体受到的合外力，加速度的方向与合外力方向相同． (2)瞬时性 前面问题中再思考这样几个问题： ①物体受到拉力F作用前做什么运动? ②物体受到拉力F作用后做什么运动? ③撤去拉力F后物体做什么运动? 分析：物体在受到拉力F前保持静止． 当物体受到拉力F后，原来的运动状态被改变．并以a＝F/m加速运动． 撤去拉力F后，物体所受合力为零，所以保持原来(加速时)的运动状态，并以此时的速度做匀速直线运动．
浙江广播电视大学 英语专业(开放专科) 《英语写作基础》期末复习 本课程的考核采取两种形式：形成性考核和课程终结考试。课程总成绩以百分制计。形成性考核占30%，课程终结考试占70%。 1. 形成性考核：满分100分，占课程总成绩的30%。形成性考核是对学生学习过程和阶段性学习效果的综合评价，包括学生参与各项教学活动和自主学习活动的情况以及阶段性的学习进展情况。本课程的形成性考核内容和方式严格按照“形成性考核册及学习档案”的具体要求执行。 2. 课程终结考试形式为笔试，闭卷。由中央电大统一命题，在同一时间全国统一考试，考试时间为90分钟。试卷分为三部分，卷面分值为100分：第一、二部分为应用文写作，占30分，主要考查学生用英语写“应用文”的能力；第三部分为短文写作，占70分，主要考查学生用英语写作叙述、说明性的短文的能力。 试卷结构 英语写作基础考试样题 一、Write a notice according to the following facts: （10分） 寒假期间，工会将举办一个春节旅游团，去北京旅游3天。游览的地方包括天安门广场、长城、故宫和颐和园，有兴趣者请速到工会报名。报名地点：行政大楼112房间；报名电话：66778800。 二、 Write a note based on the given facts: （20分）： 时间：1月10日星期五
对象：张老师 内容：由于临时出差去外地，所以无法及时交本周的作业册。非常抱歉。保证将在回来时交作业。 留言者：3班学生李玉 三、 Write an essay of no fewer than 200 words: （70分） Title: Travel Helps Me Gain More Knowledge Aids: (1) Your point of view towards traveling. (2) Examples to support your view. (3) Conclusion 英语写作基础形考册部分练习题参考答案 Part II Learning Activity 1 Key to Task 1(p 7) Choose the best connecting word or phrase from the box below to complete the following sentences. 1. No sooner had Jane left college than offers of work came in. 2. The moment Jack left college, he set off round the world. 3. Hardly had Mary left college when she realized she was expecting their first child. 4. The Director looked very pale at the meeting, as though he had just received some very bad news. 5. I have been promised a job as a trainee manager in my uncle’s hotel, provided (on the condition that) I pass all my final-year school examinations.
A: All the young children were _________ over the outing. A. excited B. exciting A : What is the least dangerous kind of robbery? B : ________ robbery. A. Safe B. Safety C. Saving All the people were _________ to hear that the pirates attacked our merchant ships. A. astonished B. astonishing All the fruits must before they are paid for. A. weight B. be weighed C. weigh D. be in weight A : What are we all doing at the same time? B : We are all growing __________. A. old B. elder C. elderly B: Be careful __________ you cross the street. A. how B. for C. to D. with C: D: Do you wish me ___________? A. stay B. to stay C. staying D. stayed Didn’t I ask you ________ in your homework this week? A. hand B. handed C. handing D. to hand E: Everyone longs ________ the summer holiday. A. till B. toward C. towards D. for Everybody was _______ at the news of a sudden outbreak of polio in the community. A. alarmed B. alarming F: G: Great changes _______ in our institute in the last few years.
牛顿第二定律 教学设计 教材分析 牛顿第二定律是动力学部分的核心内容，它具体地、定量地回答了物体运动状态的变化，即加速度与它所受外力的关系，以及加速度与物体自身的惯性——质量的关系；况且此定律是联系运动学与力学的桥梁，它在中学物理教学中的地位和作用不言而喻，所以本节课的教学对力学是至关重要的．本节课是在上节探究结果的基础上加以归纳总结得出牛顿第二定律的内容，关键是通过实例分析强化训练让学生深入理解，全面掌握牛顿第二定律，会应用牛顿第二定律解决有关问题． 学情分析 学生学习了第二节实验课：探究加速度与力/质量的关系，对a m F三者关系都有了初步了解，并且总结出了相关规律，所以对本节理论课内容做好了铺垫，对掌握本节内容具有重要作用， 教学目标： 知识与技能 1、能准确表述牛顿第二定律 2、理解数学表达式中各物理量的意义及相互关系 3、知道在国际单位制中力的单位“牛顿”是怎样定义的 4、能运用牛顿第二定律分析和处理简单的问题 过程与方法 通过对上节课实验结论的归纳，培养学生概括和分析推理能力 情感与态度 1、渗透物理学研究方法的教育——由实验归纳总结物理规律 2、让学生感受到物理学在认识自然上的本质性、深刻性、有效性 教学重点： 牛顿第二定律 教学难点： 1、牛顿第二定律公式的理解 2、理解k=1时，F=ma 教学方法和程序：探讨、归纳、数字化实验、讯飞多媒体辅助互动等。具体步骤是：创设物理情景→回顾与思考→数字化演示实验→总结规律→讯飞多媒体辅助互动。 教学过程： 教学事件顺序教学任务 及实现途 径 教师活动预测学生活动 事件1 复习上节 内容的基 础上，建立 本节内容 相关的知 识结构体 创设情景、引入新课 向学生提问：回忆上节实验探究 课内容，我们研究了哪几个物理 量？ 它们之间有什么关系？ 能用公式反应他们之间的关系 回忆、同学间展 开讨论、最后举 手踊跃回答老 师提出的问题
《英语写作》 一、《英语写作》课程简介 《英语写作》是英语专业本科段一门重要实践课程，是英语专科阶段英语写作基本继续。 我以为《英语写作》和《英语写作基本》是英语写作两个层次，即遣词造句和布局谋篇两个层次。前者更多地注重语言形式，以句子、段落为写作核心，后者注重整篇文章构造合理，脉络清晰，强调节体感。因而《英语写作》学习要特别注意英语篇章构造把握。《英语写作》重点专家是如何用英语写好记叙文、描写文、阐明文以及议论文等，而其中又以阐明文和议论文为中心。 《英语写作》考核重点 《英语写作》考核目的和出题原则在《考试大纲》中有明确阐述。依照历年考题看，考核重点有如下三点： 1. 应考生能写出内容充实，具备一定广度和深度阐明文和议论文； 2. 要纯熟掌握提纲及提纲； 3. 写作速度每小时250-300词。 《英语写作》备考办法 1. 注重过程，勤写多改 2. 布局谋篇，分析范文 3. 广泛阅读，多想善思
《英语写作》不同于其他像《英语词汇学》、《欧洲文化入门》等知识性课程，它是实践性，技能性课程。对于英语写作学习不能像学习知识性课程那样，只记忆知识脉络，就可以了，它需要考生功在平时，勤写多改，锻炼自己英语基本能力；英语写作有自己规律性。在有限时间那，要从某些散乱、突发、只言片语想法发展到一篇构造合理，逻辑清晰文章谈何容易？因而，考生在平时就要注重写作过程练习，自觉遵从写作流程。英语写作是要遵循一定过程。并不是信手拈来，或是急就章。普通来讲，一篇英语文章完毕，要通过构思，整顿，撰写大纲，一稿，二稿，终稿。学生要遵循英语写作流程，才会有长远进步。只有把握住了写作流程，才会高屋建瓴，从总体上布局谋篇，而不是“只见树木，不见树林”。某些考生写作不打草稿，随性而致，势必会影响作文质量，这是不可取。 《英语写作》注重整篇文章撰写，注意布局谋篇，因而考生要仔细阅读教材有关章节，详细分析范文，把理论和实践相结合，将理论深化，内化为自己写作指南。可以做到见到文章能抽象出文章构造，见到题目能理出自己写作思路，框架和构造。这正是考试撰写大纲和文章写作考核目所在。因而，考生们要对英语典型篇章构造了如指掌，做到心中有数。做题时方能游刃有余。 《英语写作》还需要考生善于把握当下热点问题，并能就此刊登个人看法，因而广泛阅读，多想善思会对英语写作大有裨益。考生可以从其他英语课程或是英文报刊等英语资源中汲取好词汇，语句，构造，甚至是好观点为我所用。另一方面，写作和阅读密不可分，相辅相成；考试对补齐段落和撰写大纲考察都需要较强阅读能力作为后盾，如果文章理解都浮现问题，何来对补齐段落和撰写大纲；对英语写作构造理解反过来可以协助考生提高阅读理解能力，特别是把握文章总体思想能力。考生若能细心研习，必会大受其益。 二、考试题型及分析 高等教诲自学考试《英语写作》考试满分100分，考试时间为150分钟。所有题目用英文做答。其形式相对固定，大题有三项：
第一部分英语写作基础(答案) 第一章句子写作 1.1 句子的种类 I. 1) Is there any water in the bottle? 2) Can she sing and dance very well? 3) Has he a brother in England? Or: Does he have a brother in England? 4) Does it often rain here in summer? 5) Did you always play together at that time? 6) Who is he? 7) How many times have you been to Beijing? 8) Where do they live? 9) What does your father like very much? 10) Why did he go to school yesterday? II. 1)“Shall we go by bus or by train?”“Better go by train.” 2)“Are we going to have the meeting today or tomorrow?”“Tomorrow.” 3)“You are not ready, are you？”“No, I am not.” 4)We can’t take these books out, can we?”“No, we can’t” 5)Take care not to catch cold. 6)Speak a little slower. I can’t follow you. 7)Let’s not waste our time arguing about it. 8)How pretty you are in that skirt! 9)What a beautiful city Hangzhou is! 10)How I miss my parents! III. 1)She has not had her lunch. 2)I was too excited to say a ward. 3)None of the problems is difficult. 4)You can find this kind of mobile phone somewhere. 5)He opened the door and we all went in. 6)Put on your coat, or you will catch cold. 7)It was late, so we went home. 8)He doesn’t earn much, but he spends money freely. 9)Turn off the light before you leave the room. 10)I hope that you will enjoy your stay here. 1.2句子的基本句型 I． 1）SVC 2) SV 3)SVC 4) SVOC 5. SVOA 6) SVO 7) SVOC 8) SVOiOd 9) SVOC 10) SVA II. 1)My ink has run out. (SV)
全国2003年10月高等教育自学考试 英语写作基础试题 课程代码：00597 全部题目用英文作答。 I.重写句子(15 points,1.5points each) Revise the following sentences according to the requirement. Example: The history of English words in the history of our civilization in many ways.(periodic sentence) In many ways, the history of English words is the history of our civilization. 1.I like roller-skating. I like ice-skating better.(compound sentence) 2.If you sit by the window facing the sun on a sunny winter day, you may feel nice and warm.(loose sentence) 3.Mary put the steak on the grill. The charcoal was burning evenly.(complex sentence) 4.His valuable papers were destroyed in the fire. Tom called the insurance company.(complex sentence) 5.I asked my friend if we should tip the driver when the bus tour ended.(periodic sentence) 6.Your uncle married my aunt. He is rich. She is poor.(simple sentence) 7.Jerry is smart. He should be able to handle eighteen credits this semester.(compound sentence) 8.I returned to school following a long illness. The math teacher gave me make-up work to do, but the history teacher made me drop her course.(compound-complex sentence) 9.Jack applied for a job. He went for an interview. He was hired.(parallel structure) 10.Meet me in the courtyard for dessert when you finish doing the dishes.(periodic sentence) II.改写病句(15 points,3 points each) Correct the errors in the following sentences. 11.The rain might last for a while, clouds covered the entire sky. 12.In the evening we would swim in the lake and dancing afterward. 13.That woman just bought her dog a milk shake in a red skirt. 14.To pass the course, your term paper must be handed in on time. 15.Harry wouldn’t make a good negotiator he doesn’t have the patience. III.标出主题句(15 points,5 points each) 16.Choose the best topic sentence from the group below. Write the choice in the blank. A.I eat a lot of homemade ice cream. B. Homemade ice cream is my favorite.
第2讲牛顿第二定律的基本应用 一、瞬时问题 1．牛顿第二定律的表达式为：F合＝ma，加速度由物体所受合外力决定，加速度的方向与物体所受合外力的方向一致．当物体所受合外力发生突变时，加速度也随着发生突变，而物体运动的速度不能发生突变． 2．轻绳、轻杆和轻弹簧(橡皮条)的区别 (1)轻绳和轻杆：剪断轻绳或轻杆断开后，原有的弹力将突变为0. (2)轻弹簧和橡皮条：当轻弹簧和橡皮条两端与其他物体连接时，轻弹簧或橡皮条的弹力不能发生突变． 自测1如图1，A、B、C三个小球质量均为m，A、B之间用一根没有弹性的轻质细绳连在一起，B、C之间用轻弹簧拴接，整个系统用细线悬挂在天花板上并且处于静止状态．现将A 上面的细线剪断，使A的上端失去拉力，则在剪断细线的瞬间，A、B、C三个小球的加速度分别是(重力加速度为g)() 图1 A．1.5g，1.5g,0 B．g，2g，0 C．g，g，g D．g，g，0 答案 A 解析剪断细线前，由平衡条件可知，A上端的细线的拉力为3mg，A、B之间细绳的拉力为2mg，轻弹簧的拉力为mg.在剪断A上面的细线的瞬间，轻弹簧中拉力不变，小球C所受合外力为零，所以C的加速度为零；A、B小球被细绳拴在一起，整体受到二者重力和轻弹簧向下的拉力，由牛顿第二定律得3mg＝2ma，解得a＝1.5g，选项A正确． 二、超重和失重 1．超重
(1)定义：物体对支持物的压力(或对悬挂物的拉力)大于物体所受重力的现象． (2)产生条件：物体具有向上的加速度． 2．失重 (1)定义：物体对支持物的压力(或对悬挂物的拉力)小于物体所受重力的现象． (2)产生条件：物体具有向下的加速度． 3．完全失重 (1)定义：物体对支持物的压力(或对竖直悬挂物的拉力)等于0的现象称为完全失重现象． (2)产生条件：物体的加速度a＝g，方向竖直向下． 4．实重和视重 (1)实重：物体实际所受的重力，它与物体的运动状态无关． (2)视重：当物体在竖直方向上有加速度时，物体对弹簧测力计的拉力或对台秤的压力将不等于物体的重力．此时弹簧测力计的示数或台秤的示数即为视重． 判断正误(1)超重就是物体所受的重力增大了，失重就是物体所受的重力减小了．(×) (2)物体做自由落体运动时处于完全失重状态，所以做自由落体运动的物体不受重力作用．(×) (3)物体具有向上的速度时处于超重状态，物体具有向下的速度时处于失重状态．(×) 三、动力学的两类基本问题 1．由物体的受力情况求解运动情况的基本思路 先求出几个力的合力，由牛顿第二定律(F合＝ma)求出加速度，再由运动学的有关公式求出速度或位移． 2．由物体的运动情况求解受力情况的基本思路 已知加速度或根据运动规律求出加速度，再由牛顿第二定律求出合力，从而确定未知力．3．应用牛顿第二定律解决动力学问题，受力分析和运动分析是关键，加速度是解决此类问题的纽带，分析流程如下： 受力情况(F合)F合＝ma加速度a运动学 公式 运动情况(v、x、t) 自测2(2019·山东菏泽市第一次模拟)一小物块从倾角为α＝30°的足够长的斜面底端以初速 度v0＝10 m/s沿固定斜面向上运动(如图2所示)，已知物块与斜面间的动摩擦因数μ＝ 3 3，g 取10 m/s2，则物块在运动时间t＝1.5 s时离斜面底端的距离为() 图2 A．3.75 m B．5 m C．6.25 m D．15 m 答案 B
英语写作精讲精练：一个公式三个原则 一个公式 我们都知道英语与汉语在表达顺序上存在很大的差异，因此，这里我们先引出一个英语表达顺序的公式来。请记住：英语的表达语序基本上遵循以下这个顺序： 6-1-2-3-4-5-6 6(when)—1(who)—2(what)—3(whom)—4(how)—5(where)—6(when) 说明：6的位置很灵活，可以放前，也可以放后。 示例： I ate an apple. I ate an apple with a fork. I ate an apple with a fork in the kitchen. I ate an apple with a fork in the kitchen this morning. 以上四个句子从1-2-3模式一直到1-2-3-4-5-6模式，请大家逐个翻译一下，仔细对比英语顺序与汉语顺序的差异。 结论：英语和汉语在表达的最核心内容上是一致的：即一个句子的1-2-3是相同的；但是，在有了4-5-6后，汉语表达方式与英语这个自然表达
顺序产生了巨大的词序差异： 汉语次信息先出现；英语主信息先出现 再如： 我喜欢那个女孩子 我喜欢那个穿红衣服的女孩子 我喜欢那个穿红衣服的不喜欢我的女孩子 这三个句子的核心内容都是：I like that girl.(与：“我喜欢那个女孩子”词序一致，但是，在添加了其它部分后，表达顺序全变样了！) 再如： 我打死一只苍蝇 我用手打死一只苍蝇 我用手打了三次打死一只苍蝇 我用手打了三次并在我助理的帮助下打死了一只苍蝇 这四个句子的核心内容都是：I killed a fly.(与“我打死一只苍蝇”词序一致，但是，在添加了其它部分后，表达顺序全变样了！) 逗号原则 在一个句子的前面如果有内容，那么，请记住： 1.不到3个单词时，可以用逗号与后面句子分隔开来，也可以不用逗号分隔，具体情况根据说话人自己确定的停顿语气长短来确定。 示例1：At last he stopped playing the piano. 示例2：Sadly he picked up the broken glass and went into the room. 2.达到或超过3个单词时，必须用逗号与后面句子分隔开来。
中考作文真题精讲 从2004-2009年的北京卷写作来看，所有作文无一例外是提示作文。它们都统一要求学生根据汉语意思和英语提示词语写出意思连贯，符合逻辑的短文。这种文章大致规定了文章的思想和内容，所以学生们写作重点应该集中在英语表达上，所有学生纠结的地方是：写不出正确的英文句子。而大多数资料都说08年的写作难度加大，是由于08年这道题要求学生写作夹叙夹议的文章，但是从04年开始，其实北京卷的题目都在要求夹叙夹议的文章，因为每道题都要求学生表达自己的想法和理由。下面是对历年作文做一个总结 四、书面表达（共12分）（2004年） 根据中文大意，写出意思连贯、符合逻辑、不少于50词的短文。所给英文提示词语供选用。 作为一名中学生，你学习的课程一定很多，但同时学校里又有丰富多彩的课外活动，例如：有的同学参加英语角的活动；有的同学喜欢球类、跑步等体育活动；有的同学喜欢音乐、舞蹈、美术；还有的同学参加电脑小组、摄影小组、集邮小组等。你最喜欢哪一项课外活动？活动中你都做些什么？说说你的想法和理由。 提示词语：I, a middle school student, learn, many subjects, after class, take part in, acti vity, be interested in, grow up, important, be sure. 注意：不要写出自己真实的姓名和所在学校。 这道题要求学生描述课外活动，写作思路和方向已经由引导式的中文和英文单词给出，由“I, a middle school student”和中文提示中的“作为一名中学生”要提示学生应做适当的自我介绍。由“learn, many subjects, after class, take part in, activity, be interested in,”和“你学习的课程一定很多，但同时学校里又有丰富多彩的课外活动，例如：有的同学参加英语角的活动；有的同学喜欢球类、跑步等体育活动；有的同学喜欢音乐、舞蹈、美术；还有的同学参加电脑小组、摄影小组、集邮小组等”提示学生可以先谈自己的学业很重，接着再引出丰富多彩的课外活动。而题目中要求的“你最喜欢哪一项课外活动？活动中你都做些什么？说说你的想法和理由。”要求学生使用一些表示喜好的句型和短语，并给出你的想法和理由（议论部分）。这道题学生的习作显示出来的共同问题是：仅仅用最简单的句型很生硬的把提示词连词成句，在句子和句子之间并没有使用有效的连接词；在表达自己的喜好时，绝大多数学生齐刷刷的用“I like XXX because it is important”的句型。学生们没有意识或者说有意识也没有能力写出更加复杂更加不那么大众化的句型。 写作思路： One possible version: I am a middle school student. I learn many subjects at school. After class, my classmates and I oft en take part in different school activities. I’m interested in computer science and I often go to our scho ol computer group. I learn to get useful things from the Internet. I think it is important to learn to use computers because they are used everywhere in our modern life. I want to work for our country with c omputers when I grow up.
2018年自学考试《英语写作基础》试题及答案 Ⅰ.Supply the missing paragraph (20 points) The following passage is incomplete with one body paragraph missing. Study the passage carefully and write the missing paragraph of about 100 words. Make sure that the tone and vocabulary you use are in unity with the passage provided. The Advantages and Disadvantages of Living in the City Like many other city dwellers, I often complain about having to cope with the problems related with city life. I sometimes fancy getting closer to nature and appreciating its beauty fully in the country. Once a friend asked me, “Do you really hate life in the city that much? If you had a choice, would you move away to the country?”I compelled myself to think about city life more seriously. Now I have to do justice to it. Admittedly, the attractions of city life still appeal to me strongly despite its drawbacks. In general, city life is relatively convenient and comfortable. The supply of water and electricity is continuous. Whenever one wants, all he has to do is just turning on a faucet or pressing a button. There is also a variety of vehicles for transportation, form buses and cars to trains and planes, that help people move about efficiently. Shopping centers are seen and there in cities. Thanks to the amazing diversity of commodities, going shopping is often interesting and enjoyable for city dwellers. Besides the
第2讲牛顿第二定律 ★考情直播 1．考纲解读 2.考点整合 考点一牛顿第二定律 1.定律内容：物体的加速度跟物体成正比，跟物体的成反比，加速度的方向跟合外力的方向 . 2.牛顿第二定律的矢量性、瞬时性、独立性.“矢量性”是指加速度的方向取决，“瞬时性”是指加速度和合外力存在着关系，合外力改变，加速度相应改变，“独立性”是指作用在物体上的每个力都独立的产生各自的加速度，合外力的加速度即实用文档
是这些加速度的矢量和. 3.牛顿第二定律的分量式：ΣF x=ma x，ΣF y=ma y 【例1】如图所示，小车上固定着三角硬杆，杆的端点固定着一个质量为m的小球．当 A B C D 【解析】对小球进行受力分析，小球受重力和杆对小球的弹力，弹力在竖直方向的分量和重力平衡，小球在水平方向的分力提供加速度，故C正确. 【答案】C 【方法点评】本题考查牛顿第二定律，只要能明确研究对象，进行受力分析，根据牛顿第二定律列方程即可. 考点二力、加速度和速度的关系 在直线运动中当物体的合外力（加速度）与速度的方向时，物体做加速运动，若合外力（加速度）恒定，物体做运动，若合外力（加速度）变化，则物体做运动，当物体的合外力（加速度）方向与速度的方向时，物体做减速运动.若合外实用文档
实用文档 力（加速度）恒定，物体做 运动，若合外力（加速度）变化，则物体做 运动. [例2] 如图3-12-1所示，自由下落的小球下落一段时间后，与弹簧接触，从它接触弹簧开始，到弹簧压缩到最短的过程中，小球的速度、加速度的变化情况如何？ [解析]小球接触弹簧后受两个力，向下的重力mg 和向上的弹力x k ?.（如图3－12－2（a ）所示刚开始时，当x k ?
2010-10: Ⅵ. 写信(40 points) Write a letter according to the following situation: You are going to apply for an undergraduate English literature program of a university. In the letter, tell them about your interest in the program, your qualifications and your career plan. The letter is addressed to the program director Mr. Rochester. Don’t forget to tell him your phone number (555-5555) and your email address（linping @https://www.doczj.com/doc/fa497899.html,）. Please sign your name as Li Ping. (150-200 words) 2009-10: VI. 写信(40 points) Write a letter according to the following situation: you came across a piece of news from China Daily that Zhaoyang High School in Gansu Province is recruiting English teachers. You (Li Ming), an English major going to graduate next summer, decide to apply for it. In the letter, make sure to include your devotion to education, your enthusiasm to work in the Northwest of our country, and your qualifications for the job. Don’t forget to leave your phone number (555-5555) for further contact. (150-200 words)