Summary
STATISTICAL COMMISSION and COMMISSION OF THE ECONOMIC COMMISSION FOR EUROPE EUROPEAN COMMUNITIES CONFERENCE OF EUROPEAN STATISTICIANS EUROSTAT
Joint ECE/Eurostat Work Session on
Statistical Data Confidentiality Working Paper No. 13 (Summary) (Thessaloniki, Greece, 8-10 March 1999) English only
Topic (ii): software and computing developments
CRYPTOGRAPHIC TECHNIQUES IN STATISTICAL DATA PROTECTION
Submitted by Universitat Rovira I Virgili, Spain1
Contributed paper
Summary
1.Statistical data protection is a broad concept that encompasses all aspects of the protection of sensitive statistical data. Statistical disclosure control is a part of statistical data protection whose mission is to thwart inference of sensitive data from published statistical information. However,
there are several security/functionality holes in the normal operation of a national statistical
institute that cannot be walled up by statistical disclosure control techniques. This paper identifies some of these problems and sketches cryptographic solutions for them.
KEYWORDS: Statistical data protection, Statistical disclosure control, Cryptography, Official statistics.
I.Introduction
2.With the exponential growth and importance of computer networks, storing, distributing and handling sensitive statistical data over the Internet is becoming a key issue of concern for National Statistical Institutes (NSIs). Encryption techniques can provide invaluable help to overcome these problems. This paper will concentrate on two shortcomings in the area of statistical data protection that are not being covered by statistical disclosure control. Specifically:
a) the need to provide the general public with data which are disclosure-protected but which are still
usable to obtain exact statistics.
b) the need to store, distribute and handle confidential statistical data (e.g. raw respondents' data) in a
secure way.
Cryptographic solutions to deal with the above problems will be outlined in Sections 1 and 2, respectively.
1Prepared by Josep Domingo-Ferrer.
GE.98-
II. Obtaining Exact Statistics from Disclosure-Protected Data
3.Statistical disclosure control attempts to keep individual information anonymous when releasing macrodata (contingency tables) and microdata (individual records). Such data can be released by publishing printed reports or following a set of queries to a statistical database.
4.Disclosure control methods (Willenborg and De Waal, 1996) rely on one or a combination of the following basic operations: random perturbation, data suppression (or query set size control for
on-line statistical databases) and random sampling. Therefore, disclosure control methods yield data only usable for consultation and APPROXIMATE computation at an unclassified level.
5.In Domingo-Ferrer (1996), a cryptographic approach was shown allowing a classified level (National Statistical Institute) to take advantage of unclassified (e.g. subcontracted) computation on disclosure-protected data. The same approach allows the NSI to offer to the general public the possibility of obtaining EXACT statistical results from disclosure-protected data. The idea is to extract, with little classified effort, exact statistics from statistics computed on disclosure-protected data at an unclassified level. Ad hoc encryption transformations (Blakley and Meadows, 1985) or privacy homomorphisms (encryption transformations allowing a restricted set of operations to be carried out directly on encrypted data; Rivest, Adleman and Dertouzos, 1978) are the cryptographic tools that can support that approach.Further information on a prototype that implements the above ideas can be found in Domingo-Ferrer and Sanchez del Castillo (1998) and Domingo-Ferrer, Sanchez del Castillo and Castilla (1997).
III.Secure Handling, Distribution and Storage of Confidential Statistical Data
6.Raw respondents data or otherwise unprotected confidential data should be stored, distributed and handled securely by NSIs. Encryption is an obvious solution for this problem and is already explicitly mentioned by recent statistical laws (e.g. Draft Statistical Law of Catalonia, 1998).
7.Secure storage can be achieved by keeping confidential data files encrypted. Particular encryption transformations can be chosen to minimize the storage space needed, to maximize encryption/decryption speed or even to allow some operations to be performed directly on encrypted data (see Section 1).
8.Secure distribution of confidential data normally requires all communicating parties to have cryptographic facilities and certified public encryption keys. In Polemi and Kokolakis (1998), a solution for the connection of NSIs with each other and with the outside world is outlined.
9.Secure handling of raw respondents data currently "relies" on legal non-disclosure agreements signed by the data collectors, who are very often people temporarily hired for a given survey. This obviously precarious legal security measure should be complemented/replaced by technical measures. A possibility that becomes realistic with the current state of technology would be the
following protocol.
a) The data collector handles a laptop to the respondent.
b) The respondent enters his/her answers to the questions of the survey.
c) The answers are encrypted by the laptop using the public encryption key of the NSI conducting the
survey. This public key can be prerecorded in the laptop or can even be published in the newspaper and typed by the respondent in real time.
10. A variation of the above protocol could allow the respondent to answer a survey without the physical presence of the data collector. In that scenario, the respondent could use his/her own home computer to supply his/her answers; the answers would be encrypted by the home computer and then sent to the NSI via Internet. Some randomization would probably be needed to prevent a wiretapper from identifying the clear responses from the encrypted responses.
11.The above-mentioned cryptographic solutions will be discussed in more detail in the full paper. References
G. R. Blakley and C. Meadows (1985)
"A database encryption scheme which allows the computation of statistics using encrypted data", in Proceedings of the IEEE Symposium on Research in Security and Privacy, New York: IEEE CS Press, pp. 116-122.
J. Domingo-Ferrer (1996)
"Privacy homomorphisms for subcontracting statistical computation", in Proceedings of the 3rd International Seminar on Statistical Confidentiality, Ljubljana: Eurostat-Statistical Office of the Republic of Slovenia, pp. 189-191.
J. Domingo-Ferrer and R. X. Sanchez del Castillo (1997)
"An implementable scheme for secure delegation of computing and data", in Information Security-ICICS'97 (Lecture Notes in Computer Science 1334), eds. Y. Han, T: Okamoto and S. Qing, Berlin: Springer-Verlag, pp. 445-451.
J. Domingo-Ferrer, R. X. Sanchez del Castillo and J. Castilla (1998)
"Dike: A prototype for secure delegation of statistical data", in Proceedings of SDP'98, ed. J. Domingo-Ferrer,Amsterdam: IOS Press (to appear).
D. Polemi and G. Kokolakis (1998)
"A secure network of European Statistical Offices over the Internet", in Proceedings of SDP'98, ed. J. Domingo-Ferrer, Amsterdam: IOS Press (to appear).
R. L. Rivest, L. Adleman and M. L. Dertouzos (1978)
"On data banks and privacy homomorphisms", in Foundations of Secure Computation, eds. R. A. DeMillo et al, New York: Academic Press, pp. 169-179.
L. Willenborg and T. de Waal (1996)
Statistical Disclosure Control in Practice, New York: Springer-Verlag.
summary 范文
Original: My neighbor's children love playing hide-and-seek as all children do, but no one imagine that a game they played last week would be reported in the local newspaper. One afternoon, they were playing in the vacant lot down the corner. Young Paul, who is only five years old, found the perfect place to hide. His sister, Natalie, had shut her eyes and was counting to ten when Paul noticed the storage mail box at the corner and saw that the metal door was standing open. The mailman had just taken out several sacks of mail and had carried them to his truck which was standing at the curb a few feet away. Paul climbed into the storage box and pulled the door closed so hard that it locked. Soon realizing what he had done, he became frightened and started crying. Meanwhile, Natalie was looking for him everywhere but could not find him. It was lucky that she happened to pause at the corner for a minute and heard her brother's cries. She immediately ran to tell the mailman who hurried back from his truck to unlock the metal door. Paul was now free, but he had had such a bad scare that he could not stop crying. The mailman, however, soon found a way of making him laugh again. He told him that the next time he wanted to hide in a mail box, he should remember to put a stamp on himself! Summary: The children were playing hide-and-seek in a vacant lot one afternoon. Finding that the storage mailbox had been left open, Paul hid and locked himself in it accidentally. His sister, Natalie, heard his cries and realized where he was hiding, so she immediately told the mailman to unlock the metal door. After letting him out, the mailman made him stop crying by telling him to put a stamp on himself the next he wanted to hide in a mailbox. Original: Why do some animals die out? In the past two hundred years people have caused many kinds of animals to die out--to become extinct. People keep building houses and factories in fields and woods. As they spread over the land, they destroy animals' homes. If the animals can't find a place to live, they die out. Sixteen kinds of Hawaiian birds have become extinct for this reason. Other animals, such as the Florida Key deer, may soon die out because they are losing their homes.Hunters have caused some animals to become extinct, too. In the last century, hunters killed all the passenger pigeons in North America and most of the buffalos. Today they are fast killing off hawks and wolves. Pollution is killing many animals today, too. As rivers become polluted, fish are poisoned. Many die. Birds that eat the poisoned fish can't lay strong, healthy eggs. New birds aren’t born. So far, no animals have become extinct because of pollution. But some, such as the bald eagle and the brown pelican, have become rare and may die out. Scientists think that some animals become extinct because of changes in climate. The places where they live become hotter or cooler, drier or wetter. The food that they eat cannot grow there any more. If the animals can't learn to eat something else, they die. Dinosaurs may have died out for this reason. Summary:
新托福阅读SUMMARY题型解法
对于目标明确，清晰认识自己薄弱的考生一定很想知道托福阅读summary题型该怎么解。接下来上海环球托福为考生解答。 首先，做阅读就要了解掌握文章的主旨是什么，新托福阅读SUMMARY题作为文章最后一种题型，考察的是对文章主要段落的主旨概括能力，而非全篇文章主旨。直白一点说，就是只需要关注文章局部段落，而不需要在意全局。这不同于老托福阅读里面每篇文章都有一道“What is the passage mainly about”这样的全文主旨题。 接着，考生要如何掌握主旨，来完成summary的题目。阅读英语段落的时候，应该是“匀速阅读”还是“变速阅读”呢？当然是“变速阅读”！这样考生才能做到阅读时的详略得当。但是，“变速阅读”是“先快后慢”还是“先慢后快”呢？这就要从英语的思维方式说起。 汉语族人的思维方式是“螺旋式”的，喜欢画龙点睛，我们称之为“Save the best for the last”。而英语族人的思维方式是“直线式”的，喜欢直入主题，我们称之为“Say what you want to say, then say why”。阅读英语段落的要领：变速阅读，先慢后快，精读首句，浏览全段。据统计，70%-80%的英语段落都是首句是主题句。所以，以后阅读英语段落，应该先精读首句（把握首句的“主题”和“方向”），再浏览全段（把握全段的“关系词”），才能实现快速阅读。而很多同学以前阅读的时候，要么就是倾向于到段落结尾找主题句（这主要是受了汉语思维方式的影响），要么就干脆把有限的精力平均分配到一段话内部的每个单词。 说了那么多，上海环球托福为你提出掌握主旨的方法： 1、常用法——分析段落结构找主题句 通过段落结构来概括主旨，常见的段落结构有如下六大类：（1）总分；（2）总分总（由总分演变而成）；（3）分总；（4）分总分（由分总演变而成）；（5）对比；（6）并列。其中，前四种段落结构都存在主题句和支持句之分。而后两种结构中可能不存在主题句，其段落内部会分成若干个势均力敌的部分，只不过对比结构段落的两部分之间方向相反，而并列结构段落的各部分之间方向相同。一、总分结构 总分结构的主题句一般为首句（如果首句结束后，第二句话存在转折关系，那么主题句就是第二句）。最常见的总分段落的标志就是第二句话前面出现“for example/instance”等举例关系词。如果总分结构段落最后再加一个总结句，就是总分总结构。这种段落结构约占70%。这个方法最大好处是大部分段落都存在主题句，所以能够广泛应用该方法概括段落主旨。这就是“常用法”的由来。但是，该方法的缺点是，如果段落结构比较复杂，又存在大量生词，可能导致我们难以找到主题句。这时候“简易法——重复出现是主旨”就会帮上大忙了。 2、简易法——重复出现是主旨 之所以有第二个方法是因为第一个方法有缺点，常用法的缺点是，如果段落结构比较复杂，又存在大量生词，可能导致我们难以找到主题句。这时候“简易法——重复出现是主旨”就会帮上大忙了。如果一段话在不断重复某一概念，就说明这段话在围绕这个概念展开，这个概念就是这段话的主旨。这就为我们快速把握主旨提供了极大的方便。因此，这种方法称为“简易法”。 在一段话内部重复出现可以分为三种类型。第一种是“原词”重复，但是这也是作者极力避
基英课文概述summary(第三册)
Unit 1 Fresh Start I first began to wonder what I was doing on a college compus anyway when my parents drove off . My plan was to keep my ears open and my mouth shut .The next morning , I found my first class and marched in . But I was in the wrong building . After class , I went to the cafeteria , I stepped in a large puddle of ketchup and my rear end met the floor . It ended with my first day of college class . I was very frustrated . But later , a composed and very confident football player let me realized I had been taking myself far too seriously .So I gave up trying to act my way through college and began not acting at all . Three years after graduation , I’m still making mistakes , and I’m even being forgiven for a few . Unit 2 Tranny of the Urgent Have you ever wished for a thirty-hour gay ? We seemed have a lot of things undone . But would a thirty-hour day really solve the problem ? Prolongation of time doesn’t really solve the problem . We find ourselves working more and enjoying it less . Our dilemma goes deeper , it’s basically the problem of priorities . Sometimes we have left undone and we have done those things which we shouldn’t have done . It’s the problem of priorities . Some urgent things devour our energy . Then we recall the important tasks pushed aside . We realize we’ve become slaves to the “ tyranny of the urgent ” . Unit 3 Chinese Food Chinese and Western have the different attitudes toward food . Most of chinese pay more attention to the food , but the western is different . For them , food is quite simply a fuel . Chinese think the eating is one of the most important things in life : to eat with the capital E . In fact , chinese food is the only truly international food . How did this come about ? The reasons included that the chinese went to work in North America , and the population pressure in HongKong . But root is that the western are interested in chinese food . There is no doubt that the traditional high-quality chinese meal is a serous matter , the preparation is detailed , and the enjoyment must therefore match it . Chinese food is an expression of basic assumptions about life itself . Unit 4 Why I Want a Wife I’m a wife , but I want a wife . With a wife , I can go back to college , leaving my wife to take care of the house and my children . I want a wife who will take care of my physical needs . She is supposed to the house clean , cook the meals every day , and do the grocery shopping . I want a wife who will take care of the details of my social life . When my friends are invited to our home , she should prepare a special meal and make them feel comfortable . I want a wife who will satisfy my sexual needs , of course , she will not demand sexual attention when I don’t feel like it . And I want the liberty to replace my present wife with another one . A wife can do so many things , who wouldn’t want a wife ? Unit 5 The Company Man Phil was a company man , a workaholic , a prefect tape A . He worked himself to death at 3:00 am Sunda y morning . He worked six days a week , over ten hours a day . He didn’t like to exercise , so he was overweight . He was too busy to share any time with his wife and children . As a result , he was very distant from them . One of his sons said : “ my fath er and I only board
Summary的写作技巧和常见句型
S u m m a r y 的写作技巧和常见句型 、概括原文 一）阅读 1. 读懂文章读文章的时候，要养成良好的阅读习惯，划划写写，英文阅读的时候，用铅笔轻轻划出重点词汇。 认真阅读给定的原文材料。如果一遍不能理解，就多读两遍。阅读次数越多，你对原文的理解就越深刻。 2. 拆分文章按照作者的思路，把文章分段，每个段落用几个词，几个短语概括。尽量简短，精 炼。 段落中心句，在段落的开头或末尾。有时也会变态的在当中。 3. 概括主旨写出文章的thesis, 一句话概括文章的主旨。 二）基本结构和技巧 1.重新拟定标题给summary 起一个标题。用那些能概括文章主题思想的单词、短语或短句子作为标题。也可以采用文中的主题句作为标题。 2. 阐述观点 摘要应全部用自己的话完成。不要引用原文的句子。写概述的时候，如果能够明确是他人写作的文章，注意要把作者的名字放在第一句（或者是接着写出要阐述的main ideas （主要观点）和supporting points （对主要观点的the author .. ）。
支持）。 3. 词汇运用 注意概述的cohere nee （连贯性），运用好tran siti on words （过渡 词） , like however, furthermore, nonetheless, besides, therefore etc. 4. 删除细节 只保留主要观点。 5. 选择一至两个有代表性的例子 原文中可能包括5 个或更多的例子，你只需从中筛选一至二个例子。 6. 把长句变成短句，把长段的描述变成短小、简单的句子。 He was hard up for money and was being pressed by his creditor. 可以概括为：“ He was in finan cial difficulties. His courage in battle might without exaggeration be called lion- like. ” 可以概括为：” He was very brave in battle. He was hard up for money and was being pressed by his creditor. 可以概括为：“ He was in finan cial difficulties. 6）你还可以使用词组代替整句或者从句。请看下面的例子： Beautiful mountains like Mount Tai, Lushan Mountain, and Mount Huang, were visited by only a few people in the past. Today, better wages, holidays with pay, new hotels on these mountains, and better train and bus services, have brought them within reach of many who never thought of visiting them ten years ago. ” 可以概括为：” Beautiful mountains like Mount Tai, once visited by only a few people, are today accessible to many, thanks to better wages, paid holidays,
summary的写法
摘要的基本结构和内容因为摘要本质上就是一篇高度浓缩的论文, 所以其构成与论文主体的IMRAD结构是对应的。因此, 摘要应包括以下内容梗概：（1）目的：研究工作的前提、目的和任务, 所涉及的主题范围；（2）方法：所用的理论、条件、材料、手段、装备、程序等；（3）结果：观察、实验的结果, 数据, 得到的效果, 性能等；（4）结果的分析、比较、评价、应用, 提出的问题, 今后的课题, 假设、启发、建议、预测等；（5）其他：不属于研究、研制、调查的主要目的, 但具有重要的信息价值。 一般地说, 报道性摘要中（2）、（3）、（4）应相对详细, （1）和（5）则相对简略。指示性摘要则相反。 1 引言部分 1.1回顾研究背景常用词汇有：review, summarize, present, outline, describe 等。例如：We review evidence for this view of addiction and discuss its implications for understanding the psychology and neurobiology of addiction. [Brain Research Reviews, 1993, 18 (3): 247-291] This paper outlines some of the basic methods and strategies and discusses some related theoretical and practical issues. [Annals of Statistics, 1994, 22 (4): 1701-1728] 1.2 阐明写作或研究目的常用词汇有：purpose, attempt, aim等。另外还可以用动词不定式充当目的状语来表达。例如： We attempt to recover a function of unknown smoothness from noisy sampled data. [Journal of the American Statistical Association, 1995, 90 (432): 1200-1224] To investigate the mechanism of Bcl-2's effect, we examined whether Bcl-2 interacted with other proteins. [Cell, 1993, 74 (4): 609-619] 1.3介绍论文的重点内容或研究范围常用的词汇有：study, present, include, focus, emphasize, emphasis, attention等。 Here we study the dependence of apoptosis on p53 expression in cells from the thymus cortex. [Nature, 1993, 362 (6423): 849-852] This article includes a brief review of the physics underlying HERWIG, followed by a description of the program itself. [Computer Physics Communications, 1992, 67 (3): 465-508] 2 方法部分 2. 1介绍研究或试验过程常用词汇有：test, study, investigate, examine, experiment, discuss, consider, analyze, analysis等。 We use N-body simulations to investigate the structure of dark halos in the standard cold dark matter cosmogony. [Astrophysical Journal, 1996, 462 (2): 563-575] We present an analysis of atmospheric neutrino data from a 33. 0 kton yr (535-day) exposure of the Super- Kamiokande detector. [Physical Review Letters, 1998, 81 : 1562-1567]
雅思阅读SUMMARY题型解答
今天给大家介绍雅思阅读SUMMARY题型该如何解答 一、SUMMARY题型要求 雅思阅读该类题目是一小段文字，是原文或原文中的几个段落主要内容的缩写或改写，称之为摘要。摘要中有几个空白部分要求考生填空。 SUMMARY要求考生要对原文的内容结构有精确的把握，更需要考生运用一定的综合概括能力，将原文和缩写文章进行词句、词语的比较，提取原文信息。 按照范围，摘要可分为两种： 全文摘要（8－10题）和部分段落摘要（涉及2－3段，5－6题）。 全文摘要，摘要信息来自全文，题目空格的数目较多。 部分段落摘要，摘要信息来自原文某几个连续的段落，题目空格的数目较少。 最近雅思考试中出现的大部分是部分段落摘要，信息来自原文连续的两到三段，题目空格的数量在5 题左右。对于部分段落摘要，有的在题目要求中会指出它来自原文的哪些段落，如complete the summary below of the first two paragraphs of the reading passage。 但大部分的部分段落摘要只是在题目要求中说它是原文的一个摘要或部分段落摘要，并不指出它来自原文的哪些段落。 按照填空内容，摘要也可分为三种：原文原词、从多个选项中选词和自己写词。 原文原词的题目要求中常有from the reading passage 的字样。从多个选项中选词，选项的数目常常超过题目空格的数目。从多个选项 中选词或自己写词的题目要求中没有from the reading passage 的字样，有时会有using the information in the passage 的字样。 先看选项，按词性归类。注意是否有同根异性词选项（其中可能一个是答案）。以先猜后找方法解题：猜——用语法；找——回原文。 最近雅思考试中，绝大部分是原文原词或从多个选项中选词，很少有自己写词的。这类题在A类和G类考试中出现的频率一般都是每两次考一次， 每次考一组，共五题左右。 二、SUMMARY解题步骤 （1）雅思考试该类题型，要求仔细读摘要的第一句话，找出它在原文中的出处，通常是和原文某段话的 第一句相对应。确定填空部分是所给阅读文章的全篇还是部分的SUMMARY，确定是用题目所提供的单词表填空，还是需要自己从原文中挑选 单词填空。如果题目要求中已经指出了摘要的出处，则此步可以略去不做。 （2）略读缩写文章，了解大致内容，迅速回原文定位，确定是哪一段落的SUMMARY，或是涉及哪些段落的内容。 把空格前后的词作为signal words，到原文中去找这些词的对应词。 对应词的特点如下： a．原词 b．词性变化；如空格前的词为threatening, 形容词，原文中的词为threat, 名词。
高级英语6 lesson1 课文的summary
Summary of Sexism in School According to Myra and David Sadker, many people believe classroom sexism was gone already, but actually it still exists in school: boys still get more attention than girls do in classroom. Based on some reliable investigation and bountiful evidence, readers can easily know that teachers' sexist attitudes towards students do exist and it can directly affect students' progress in learning. It can be found that boys get more than their fair share of teacher attention, while girls just sit and keep quiet. Besides, the sexism with far-reaching harmful effects also exists in work place. Then the authors make a recommendation that teachers getting trained can establish equity in classroom, which turns out to be effective according to the study. Finally, the authors make a call for immediate action to remove sexism in school so that females can achieve equity in work world as well as in school.
summary写法.doc
summary 的写法 Summary的写法 一、概括原文 （一）阅读 1.读懂文章 读文章的时候，要养成良好的阅读习惯，划划写写，英文阅读的时候，用铅笔轻轻划出重点词汇。 认真阅读给定的原文材料。如果一遍不能理解，就多读两遍。阅读次数越多，你对原文的理解就越深刻。 2.拆分文章 按照作者的思路，把文章分段，每个段落用几个词，几个短语概括。尽量简短，精炼。段落中心句，在段落的开头或末尾。有时也会变态的在当中。 3.概括主旨
写出文章的thesis,一句话概括文章的主旨。 （二）基本结构和技巧 1.重新拟定标题 给summary起一个标题。用那些能概括文章主题思想的单词、短 语或短句子作为标题。也可以采用文中的主题句作为标题。 2.阐述观点 摘要应全部用自己的话完成。不要引用原文的句子。写概述的时 候，如果能够明确是他人写作的文章，注意要把作者的名字放在第一句（或者是the author. ）。接着写出要阐述的main ideas （主要观点）和supporting points （对主要观点的支持）。 3.词汇运用 注意概述的coherence （连贯性），运用好transition ore, nonetheless, besides, therefore etc.
4.删除细节 只保留主要观点。 5.选择一至两个有代表性的例子 原文中可能包括 5 个或更多的例子，你只需从中筛选一至二个例子。 6.把长句变成短句，把长段的描述变成短小、简单的句子。 Lushan “ He oney and ight oney and ountains like Mount Tai, Mountain, and Mount Huang, ountains, and better train and bus services, have brought them any ten years ago. ” 可以概括为：” Beautiful mountains like Mount Tai, once visited by only a feany, thanks to better e several Chinese and English novels, a fee and Nee textbooks. She intended to read all of them during the e a lot of books to read during the vocation. ” 8）使用最短的连接词。比如，可以使用but, then, thus, yet, though ，不能使用at the same time, in the first place, because of these, on the other hand等较长的连接词。通常，
一篇英语summary范文英语Summary写
一篇英语summary范文英语Summary写第一步：阅读 A.认真阅读给定的原文材料。如果一遍不能理解，就多读两遍。阅读次数越多，你对原文的理解就越深刻。 B.给摘要起一个标题。用那些能概括文章主题思想的单词、短语或短句子作为标题。也可以采用文中的主题句作为标题。主题句往往出现在文章的开头或结尾。一个好标题有助于确定文章的中心思想。 C.现在，就该决定原文中哪些部分重要，哪些部分次重要了。对重要部分的主要观点进行概括。 D.简要地记下主要观点——主题、标题、细节等你认为对概括摘要重要的东西。 第二步：动手写作 A. 摘要应该只有原文的三分之一或四分之一长。因此首先数一下原文的字数，然后除以三，得到一个数字。摘要的字数可以少于这个数字，但是千万不能超过这个数字。
B. 摘要应全部用自己的话完成。不要引用原文的句子。 C. 应该遵循原文的逻辑顺序。这样你就不必重新组织观点、事实。 D. 摘要必须全面、清晰地表明原文所载的信息，以便你的读者不需翻阅原文就可以完全掌握材料的原意。 E. 写摘要时可以采用下列几种小技巧： 1) 删除细节。只保留主要观点。 2) 选择一至两个例子。原文中可能包括5个或更多的例子，你只需从中筛选一至二个例子。 3) 把长段的描述变成短小、简单的句子。如果材料中描述某人或某事用了十个句子，那么你只要把它们变成一两句即可。 4) 避免重复。在原文中，为了强调某个主题，可能会重复论证说明。但是这在摘要中是不能使用的。应该删除那些突出强调的重述句。
5) 压缩长的句子。如下列两例： “His courage in battle might without exaggeration be called lion-like.” 可以概括为：”He was very brave in battle.” “He was hard up for money and was being pressed by his creditor.”可以概括为：“He was in financial difficulties.” 6) 你还可以使用词组代替整句或者从句。请看下面的例子： “Beautiful mountains like Mount Tai, Lushan Mountain, and Mount Huang, were visited by only a few people in the past. Today, better wages, holidays with pay, new hotels on these mountains, and better train and bus services, have brought them within reach of many who never thought of visiting them ten years ago.”
summary格式及模板
SUMMARY的最常见格式是总分总.开头笼统的介绍以下,给读者一个大概的概念,然后分段总结这个你好总结的东东的各个方面.关键看你要写多少字,概括的是什么,再决定中间这部分是分小段还是一大段内,分开概括.最后就是总结了.有的时候你会感觉总结和开篇介绍很相似,确实是这样,但是总结只是更近一步的对这个事物进行了概括.这个时候,读者就应该对你所总结的事物有一种整体上的认识了. 一段好的摘要必须包括main idea和supporting details。main idea说明文章的主旨，作者主要诉说的故事是关于什么supporting details则帮助发展或说明主题。 如何写英文摘要英文摘要如何写如何写摘要 一、概述文章摘要是对所写文章主要内容的精炼概括。美国人称摘要为“Abstract”,而英国人则喜欢称其为“Summary”。通常国际刊物要求所要刊登的文章字数，包括摘要部分不超过1万字。而对文章摘要部分的字数要求则更少。因此，写摘要时，应用最为简练的语言来表达论文之精华。论文摘要的重点应放在所研究的成果和结论上。 国际会议要求的论文摘要的字数不等，一般为200字-500字。而国际刊物要求所刊登的论文摘要的字数通常是100字-200字。摘要的位置一般放在一篇文章的最前面，内容上涵盖全文，并直接点明全旨。语言上要求尽量简炼。摘要通常多采用第三人称撰写。 科学书籍、论文和学术报告一般都附有内容摘要，这样可以节省读者的时间，使他们不必读完整个文章就能够了解它的主要内容。书籍摘要，一般放在封二或封三；论文和学术报告的摘要，一般放在正文前面。摘要应做到简明扼要，切题，能独立成文，使读者能准确地了解书籍的要义。写摘要时，最好用第三人称的完整的陈述句，文长一般不超过200个词。 摘要分陈述性的（Deｓｃｒｉｐｔive）和资料性的（Informational）两类。陈述性摘要只陈述书籍或文章的主题，不介绍内容。资料性的摘要除了介绍主题外，还应介绍文章的要点和各个要点的主要内容。它可以包括三个组成部分①点明主题，解析文章或书籍的目的或意图；②介绍主要内容，使读者迅速了解文章或书籍的概貌；③提出结论或建议，以供读者参考。 二、常见句型 1）This paper deals with.. 2）This article focuses on the topics of (that,having,etc). 3）3）This eassy presents knowledge that... 4）4）This thesis discusses... 5）5）This thesis analyzes... 6）6）This paper provides an overview of... 7）7)This paper elaborates on .. 8）8）This article gives an overview of... 9）9）This article compares...and summarizes key findings. 10）This paper includes discussions concerning... 11）11)This paper presents up 12）12)This article covers the role of chemicals in...
上海高考Summary如何写
Summary如何写（I） 说明文的summary 我们以上海英语高二课本中的一篇文章为例 The Problem of Packaging 第一段 A large source of rubbish is packaging material. It often makes up more than 30 percent of the total. To understand why this is true, think of the packaging commonly used for a simple product, such as toothpaste. The packaging includes not only the tube for the toothpaste, but also the box for the tube. This box is put into a plastic wrapper. Then, the boxes are transported in a cardboard container. 第二段 Most packaging material ends up in a landfill after it is thrown away. Though necessary, landfills take up valuable space, often stink, and can leak harmful substances into the soil. Landfills not included, the production of packaging material itself is a major source of air and water pollution. 第三段 People are now trying to solve the problems caused by packaging materials. In 1991, Germany took the lead by requiring companies to recycle the packaging used for their goods. To do this, the companies set up recycling bins in every neighborhood. Consumers now separate their rubbish into three categories—metal, plastic and paper cartons. They then put it into the appropriate bin. The rubbish sorted, it is transported to are cycling company for processing. 第四段 The programme worked well at first. However, the amount of rubbish has begun to increase again. One reason for this is that many consumers no longer reduce waste because they think the problem is solved. It seems that to properly deal with the problem of rubbish, everyone must remain vigilant and do their part. 我们先来把每段的大意理一下： 第一段的中心应该就是讲 A large source of rubbish is packaging material. It often makes up more than 30 percent of the total. 后面的牙膏的情况只是举例说明咯。 第二段呢？讲了两层意思，一层：垃圾进入填埋场后造成污染；二层：这些包装材料生产过程中，会产生对空气和水的污染。 第三段：中心句很清晰啊People are now trying to solve the problems caused by packaging materials. 后面的德国的事情也是举例子，政府啊，制造商啊，个人啊，采取什么措施来试图解决包装材料带来的污染问题。 最后一段了：尽管德国的方法起到了一定的作用，但，又有些人开始神兜兜起来了。包装材料的污染仍是个大问题啊，我们不能放弃警惕。