1、满分网（）更 多 英 语 资 料 请 访 问 ： http:/ 1实用英语写作技巧（共 35 单元）第一单元 段落简介11 段落段落是构成文章的一组句子。段落必须表达完整的意思：或描写事物（describe something） ，或争论某事（argue about something） ，或对某事提出疑问（question something） ，或要求什么（demand something） ，或给事物下定义（define something） ，或驳斥某观点（reject something） 。12 典型段落的构成一个典型的段落通常由三部分组成：（1）主题句（the topic sen
2、tence） ；（2 ）说明或支持主题的推展句（ supporting sentences） ；（3）结论句（the concluding sentence）（有些段落没有该部分） 。示范段落 1-1We all know that cigarette smoking is a dangerous habit because it causes health problems Doctors say it can be a direct cause of cancer of the lungs and throat and can also contribute to cancer of ot
3、her organs In addition， it can bring about other health problems such as heart and lung diseases It is clearly identified as one of the chief causes of death in our society13 示范段落分析满分网（）更 多 英 语 资 料 请 访 问 ： http:/ 2这是一个典型的段落，可概括提纲如下：主题句： We all know that cigarette smoking is a dangerous habit，because
4、 it causes health problems推展句： 1 Doctors say it can be a direc cause of cancer of the lungs and throat and can also contribute to cancer of other organs2 It can bring about other health problems such as heart and lung diseases结论句： It is clearly identified as one of the chief causes of death in our s
5、ociety从以上提纲可见，主题句提出了一个问题： What kind of health problems does cigarette smoking cause？随后的两个推展句回答了这个问题，结论句总结了推展句并再一次强调主题句。Exercise 1-1Directions： Read the following paragraphs and find out the topic sentence， the supporting details and the concluding sentence， if there is one（1）The need for wildlife pr
6、otection is greater now than ever beforeAbout a thousand species of animals are in danger of extinction,，and the rate at which they are being destroyed has increased With mammals， for instance， the rate of extinction is now about one species every year； from A D 1 to 1800， the ratewas about one spec
7、ies every fifty years Everywhere， men are trying o solve the problem of preserving wildlife while caring at the same time for 满分网（）更 多 英 语 资 料 请 访 问 ： http:/ 3the worlds growing populationTopic Sentence：_Details： 1_2_Concluding Sentence：_（2）The Americans and the British not only speak the same langu
8、age but also share a large number of social customsFor example， in both America and England， people shake hands when they meet each other for the first time Also， most English men will open a door for a woman or offer their seat to a woman， and so will most Americans Promptness is important both in
9、England and in America That is， if a dinner invitation is for 7 oclock， the dinner guest either arrives close to that time or calls up to explain his delayTopic Sentence：_Details： 1_满分网（）更 多 英 语 资 料 请 访 问 ： http:/ 4_2_3_Concluding Sentence：_（3）Birds use many different materials to build nestsSome bi
10、rds use bits of grass The tailor-bird of Africa and India uses grass to sew leaves together Other birds find twigs and pebbles usefulTopic Sentence：_Details： 1_2_3_满分网（）更 多 英 语 资 料 请 访 问 ： http:/ 5Concluding Sentence：_第二单元 主题句简介21 主题句 作者的首要任务是让读者知道所写段落要谈的是什么，这就是每段的主题句的作用。因此主题句应该阐明段落的主要思想，所有支持主题句的细节和
11、描述都与这一主要思想有关。22 主题句的形式主题句通常有以下三种形式：1）肯定句（Affirmative Sentence）Example： The need for wildlife protection is greater now than ever before2）反诘句（Rhetorical Sentence）Example： How do you think people will solve the problem of wildlife protection？3）不完整句（Fragments ）Example： And the workingman？初学者最好使用肯定句作为主题
12、句。23 主题句的位置主题句出现的位置有以下四种情况：1）段首（At the beginning）主题句经常居于段首，以便读者浏览主题句就可掌握文章的概要。这个位置适用于写提供满分网（）更 多 英 语 资 料 请 访 问 ： http:/ 6信息或解释观点的段落。2）段末（At the end）用推理方法展开段落时，主题句往往位于句末。3）段中（In the middle）有时为了使段落多样化，主题句也可以居于段中。4）隐含（Implied）有时候，尤其在写叙述性或描写性段落时，当所有的细节都围绕着一个显而易见的主题时可以不用主题句。Exercise 2-1Directions： Read t
13、he following paragraphs and identify the topic sentence If it is implied， summarize it yourself（1）But no matter what it is called， all polyester has certain good points It does not wrinkle easily It dries quickly after it is washed It holds its shape It is strong and keeps its colors wellTopic Sente
14、nce：_Position：_（2）满分网（）更 多 英 语 资 料 请 访 问 ： http:/ 7Black is the colour of mourning Red symbolizes danger，violence，or bloodshed If you are afraid， you are yellow None of these sayings is true outside the English speaking world In China and Korea， white is the color of mourning In Russia red stands fo
15、r beauty and life In Italy and Germany you are yellow with anger，not with fearTopic Sentence：_Position：_（3）Our chief source of fresh water is rainfall that collects in lakes，rivers， and reservoirs Recently， however， we have discovered anew source， aquifers， which are rock formations containing water
16、Even under deserts， vast aquifers may be waiting to be tappedCompanies drilling for oil in the Middle East have sometimes struck aquifers， which provide unexpected water supplies for arid regionsTopic Sentence：_Position：_（4）Suppose youre playing a game You make a silly mistake and lose Do you 满分网（）更
17、 多 英 语 资 料 请 访 问 ： http:/ 8become angry？ Or can you laugh at yourself and hope to do better next time？ Suppose you are at a special dinnerYou accidentally spill some foodWhy keep worrying about how clumsy you look？Why not laugh it off and enjoy yourself anyway？If you can， its good sign youve really
18、grown up Topic Sentence：_Position：_（5）Young men sometimes bring edelweiss back for their girlfriends The girls think of the flowers as a proof of true loveMountain climbers， guides， and hunters pick edelweiss tooThey wear it on their hats To them it is a sign of courage and daringTopic Sentence：_Pos
19、ition：_第三单元 如何写好主题句31 关于写主题句的建议 1）要写合乎语法的句子Example 1： Two causes of the American Civil War这个句子是个不完整的句子，不合乎语法，因此不能用作主题句。满分网（）更 多 英 语 资 料 请 访 问 ： http:/ 9Example 2： There were two causes that led to the American Civil War重写后的句子合乎语法，是个较好的主题句。2）要使用限写词限定主题为了正确表达观点，好的主题句经常使用关键词或词组，即限制词（controllers）限制这一观点。
20、Example 3： Air travel is more convenient than train for at least three reasons从上例主题句我们得知作者将要写“air travel”（ topic） ，他将要把 “train”（ aspect）和“ air travel”作比较，并且陈述“reasons” 。由此可见，作者在“aspect”（方面）和“reason” （原因）两方面限制他的主题。3）要注意主题的可写性所定的主题不能太笼统，也不能太具体。Example 4： In Hemingways story “Soldiers Home”，Krebs tells
21、 his mother that he wants no part of Gods Kingdom这个句子太具体以至于无东西可写，无法展开段落。Example 5： In Hemingways story “Soldiers Home”， Kreb is a lonely， cynical veteran这个句子可作为主题句，因为可以围绕“lonely，cynical” 展开段落。Example 6： Let me tell you something about overpopulation这个句子太笼统，作为一个段落的主题太大，难于驾驭。Example 7： Why has the wor
22、ld population been increasing sorapidly in the last decades？这个句子是个较好的主题句，作者用“the reasons for overpopulation in the last 满分网（）更 多 英 语 资 料 请 访 问 ： http:/ 10decades”，从“原因” （cause）和“时间” （time）两方面限制了主题，能在一个段落内论述。Exercise 3-1Directions： Identify the areas which limit the topic sentences311 Soccer has beco
23、me increasingly popular in the U S in the last ten yearsTopic：_Limitations：_312 Pollution has caused three major problems in the last decadesTopic：_Limitations：_313There are two kinds of memory： short-term and long-termTopic：_Limitations：_314 Women are playing an increasingly important part in socie
24、ty todayTopic：_Limitations：_315 Women are paid less for equal work than men in some companiesTopic：_Limitations：_Exercise 3-2Directions： Write two topic sentences for each of the topics，limiting the topic 满分网（）更 多 英 语 资 料 请 访 问 ： http:/ 11in different ways3 2 1 Topic： the study of EnglishTopic Sente
25、nce 1：_Topic Sentence 2：_322 Topic： college students todayTopic Sentence 1：_Topic Sentence 2：_323 Topic： women in ChinaTopic Sentence 1：_Topic Sentence 2：_324 Topic：crimeTopic Sentence 1：_Topic Sentence 2：_Exercise 3-3Directions： Read the following paragraphs and supply the missing topic sentence（1）
26、_满分网（）更 多 英 语 资 料 请 访 问 ： http:/ 12Icelands flag， for instance， stands for features of the landRed for the fire of Icelands volcanoes White is for ice Blue is for the mountains On Indias flag， the blue wheel stands for peace and progress The white stripe behind it is for truth The black stripe on th
27、e flag of Malawi stands for the Negro people of that African land The red stripe represents the blood they shed to free themselves from foreign rule（2）_The one most people are familiar with is the“desk dictionary”，sometimes refered to as general-purpose dictionary Another kind is the pronouncing dic
28、tionary， which is concerned with a words pronunciation more than with its meaning A third type is the bilingual dictionary， which lists the words in one language and attempts to give equivalent meaning in another language Other types include technical dictionaries， special purpose dictionaries，and s
29、cholarly dictionaries第四单元 如何写推展句41 段落的推展在前几单元中，我们谈到写段落的第一个步骤是写主题句。作者要对主题句在某些方面加满分网（）更 多 英 语 资 料 请 访 问 ： http:/ 13以限制。第二个步骤将是写推展句。例如你要陈述你选择某院校的理由，第一步，写出主题句：There are two main reasons why I have decided to attend Bingston University next year第二步，以数个理由推展你的主题：示范段落 4-1 There are two main reasons why I ha
30、ve decided to attend Bingston University next year First of all， there is the question of money：Bingstonvs tuition is reasonable and I dont even have to pay it all at once This is very important， since my father is not a rich man With Bingstons “deferred payment plan， ” my father will be able to pay
31、 my tuition without too much difficultyThe second resaon is the fine education which I feed will receive there in agriculture， my chosen field It is a well-known fact that Bingston hires only the finest professors in its Agriculture Department Moreover， the university reqires all agricultural studen
32、ts to get practical experience by working on farms in the areawhile they are still going to school42 示范段落分析细节： two main reasons：理由 1financial considerationa reasonable tuitionb deferred payment plan理由 2quality of education满分网（）更 多 英 语 资 料 请 访 问 ： http:/ 14a fine teachersb practical experience在两个主要理由
33、之下，作者用更小的细节支持它们。由此可见，段落的推展依赖于支持主题句的细节（details） 。推展段落的方法很多。通常每个段落以一种方法为“支配方法” （ the dominant method） ，必要时，可运用其它一种或数种方法作为“辅助方法” （ the supporting method） 。上面的示范段落使用因果法（cause-and-effect）作为支配方法，分类法（division and classification）作为辅助方法。作者还运用了“重要性排列顺序” （the order of importance）作为安排细节、组织段落的手段。我们将在以下各单元逐个讨论这些方
34、法。Exercise4-1Directions： Read the following paragraphs and find out what details the authors use to support their topic sentences（1）Warm water freezes more quickly than cold Sir Francis Bacon stated that almost four hundred years ago But few people believedhimtill 1970 In that year， Canadian scienti
35、st George Kell proved the English scholar right Dr Kell filled an open pail with cold water He filled another with warm water He exposed both to the same low temperature The warm water froze firstTopic Sentence：_Details：1_满分网（）更 多 英 语 资 料 请 访 问 ： http:/ 152_（2）There is a relationship between your bl
36、ood type and your nationality Among Europeans and people of European ancestry，about 42 percent have type A while 45 percent have type OThe rarest is type B Other races have different percentagesFor example， some American Indian groups have nearly 100 percent type OTopic Sentence：_Details：1_2_（3）Alth
37、ough thousands of people have been killed by sudden eruptions， volcanoes also benefit man， Tin， tungsten， gold and other metals have been brought closer to the earths surfaceChemicals in the ash have enriched farmland When solid， lava is agood building material And in Italy， steam from active volcanoes supplies he
