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places we saw were well worth the price we paid。
We found that most of the other passengers were friendly and interesting； but there was one man； a Mr。 James； who irritated and annoyed us。 Whatever subject we talked about； it seemed that he was an expert at it。 He had； apparently； read more books； visited more countries and studied more languages； than anyone else had。 After a few days； we ate our meals in silence； because nobody wanted to begin a conversation that would soon be taken over by this man。
Then my wife had an idea。 She suggested that we might think of an unusual subject； look it up in an encyclopedia and then talk about it at dinner。 If it were an unusual subject； Mr。 James could not possibly know anything about it。 The subject we chose was “English Agriculture in the Eleventh Century。” At dinner that night we discussed this subject with great enthusiasm。 Mr。 James was silent。 We realized we had at last come to find something he knew nothing about。
UNIT 1 基本技能篇（15天）Day 12 说明文的思路与练习
说明文的思路与练习
说明文是用言简意赅的语言来介绍客观事物，讲清事理，并给人增加知识的一种文体。说明文解说事物的特点、发展变化规律，分析前因后果，目的在于使读者“明白事理”，获得必要的信息，对事物有个较完整明晰的了解和认识。说明文不同于记叙文和议论文，它重在给人介绍，让人明白，因而，轻“情义”重事实。说明文与议论文关系密切，有人将其统称为议论文。但在写作的目的和方法上两者仍有区别。说明文主要是通过事实客观地解释或说明事物本身；而议论文则以事实、数据等为证据，表明主观见解，使读者信服或赞同某一观点。
历年四级考试中的“How I Overcome Difficulties in Learning English”、“My Ideal Job”以及图表作文的第一段都属于说明文的范畴，如，2002年6月的根据坐标图写题为“Students Use of Computers”的作文。
说明文必须按一定的顺序进行说明：时间顺序、空间顺序、逻辑顺序或认识顺序，选择具体的特点和细节来说明。
所以，说明文的思路要围绕说明顺序、事物的特点和细节展开。例如：
范文点评
A Famous Clock
When you visit London； one of the first things you will see is Big Ben； the famous clock which can be heard all over the world on the B。B。C。 If the Houses of Parliament had not been burned down in 1834； the great clock would never have been erected。 Big Ben takes its name from Sir Benjamin Hall who was responsible for the making of the clock when the new Houses of Parliament were being built。 It is not only of immense size； but is extremely acomurate as well。 Officials from Greenwich Observatory have the clock checked twice a day。 On the B。B。C。 you can hear the clock when it is actually striking because microphones are connected to the clock tower。 Big Ben has rarely gone wrong。 Once； however； it failed to give the correct time。 A painter who had been working on the tower hung a pot of paint on one of the hands and slowed it down！
【点评】这是《新概念英语》中的一篇经典说明文，介绍了世界著名的“大本钟”。文章开篇指明该钟位于英国伦敦，且全世界的人们通过BBC就能够听到钟声。接下来讲述了“大本钟”的由来，特点——不仅外型巨大，而且走时准确，在结尾处讲了“大本钟”的一个幽默的小插曲——油漆工把油漆桶挂在指针上，把钟弄慢了。细读这篇文章，我们不难发现，区区159个单词就把“大本钟”的光辉形象牢牢地刻在读者的脑海里，为什么？本文基于事实，分析了主题的来龙去脉，语言简洁又不失生动贴切，作者态度客观又充满幽默，使读者既“明白了事理”，又对事物有较完整明晰的了解认识，此乃说明文之真谛也。
以“Goals”为题打开一篇说明文的思路。
参考思路
1）目标的分类：（可根据时间顺序，空间顺序、逻辑顺序或认识顺序，任选一个进行分类和排列）
2）各个类别的特点和细节：
3）组织成文：
范文点评
Goals
Everyone has goals。 Many people do not reach their goals for lack of planning。 These three sets of goals should be developed： lifetime； intermediate and short term。
Lifetime goals should be written out。 These goals should be clear and reasonable。 For instance； the goal to win a research prize is clear and measurable。 Other lifetime goals might include publishing a certain number of influential books or articles； earning a departmental chairmanship at a major university； sucomessfully competing for a grant from the National Science Foundation or securing a consultantship with a big corporation。
Intermediate goals relate to outcomes during the next few years。 For the beginning doctoral student； intermediate goals may include completion of course work and preparation of a doctoral research proposal。 Like lifetime goals； these are measurable and clearly stated。
Short…term goals involve outcomes expected during the next 12 months。 These goals are more performance oriented； and they help with achievement of intermediate goals。 Examples of short…term goals are earning an A in a course； learning how to program a computer or performing an experiment。
【点评】本文介绍了人生的三种目标：终生的、长期的和短期的目标。在文中采用了说明文常用的方法：定义、举例、分类和比较等。
对这些方法我们要了解并且掌握：
1。 定义法（definition）
定义法是用下定义的方式去揭示事物本质特征或概念内涵。它能使读者迅速抓住本质属性和基本特点。此法的句型：
① … is a/the … of … which/that …② … relate to/involve/refer to …
【例】
（1）Language is a system of arbitrary vocal symbols which is used for human communication。 语言是人类用来交际的任意性的语音符号体系。
（2）Intermediate goals relate to outcomes during the next few years。
（3）Short…term goals involve outcomes expected during the next 12 months。
2。 举例法（illustration）
举例法就是举出实际事例来说明事物的方法，是最常见，往往也是最有效的阐释模式。
专家提醒
举例时应挑选具体、典型且有能力表达清楚的例子，并注意按照一定的顺序编排。
请看上述范文第二段：“For instance”引出“lifetime goals”的实例，如，赢得研究奖金、出版有影响书或文章、获得大学的系主任职位、获得国家自然科学基金及大公司稳定的顾问职位。
3。 分类法（classification）
分类法就是把说明的对象，按一定的标准划分成不同类别分别加以说明的方法。如：上述范文介绍人生的三种目标，并按照时间的长短对终生目标、长期目标和短期目标做了分类说明。
4。 比较法（comparison）
比较法是用一个事物和与其有联系的其他事物加以对比的说明方法。目的是为了帮助读者准确地区分事物，通过对比达到对该事物的深刻认识。
如：上述范文对三种人生目标在时间上和实际操作上进行了比较，并阐明了彼此的联系。
（1）Lifetime goals should be written out。
（2）Like lifetime goals； these are measurable and clearly stated。
（3）These goals are more performance oriented； and they help with achievement of intermediate goals。
5。 数字法（statistics）
数字法是运用数据来表明事物的本质和特点，准确合理的数据使文章精确可信。
【例】
（1）Nearly half of all Americans over age 20 wear a bridge or denture，and more than 20 percent have complete upper and lower denture。 By age 50； one out of every two persons has gum disease。
（2）And it seems sensible to wait。 One quarter of all marriages between people under twenty…one end in divorce。 In Britain in 1972； there were 124；248 divorces。
说明文的说明方法除上面介绍的常见的几种以外，还有诸如分项法、列举法、比喻法及引用法等，只有综合运用多种说明方法，才能多角度、多层次地全面、清晰、准确地展示客观事物的本来面貌。
1。 用定义法解释：
CET…4：
the Olympic Games：
a skeleton in the cupboard：
Hope Project：
qualifications：
2。 用举例法说明：
教育的重要性：
当前网络游戏的危害：
成功的方法：
健身的种种看法：
大学生学好英语的方法：
3。 用分类法说明：
社会实践的方面：
课外活动：
大学生谈恋爱的原因：
大学毕业生的分配情况：
食堂的伙食：
4。 用比较法说明：
留学的利弊：
兼职的好坏：
不同的减肥方法：
题海战术与素质教育：
5。 用数字法说明：
大学生的身体状况：
大学生的就业现状：
汽油价格上涨带来的影响：
手机的使用情况：
中国人住房状况：
6。 借助说明文的构思方法，看看下列题目该如何写：
（1）The Layout of a Hospital
Direction： You are asked to write a composition about “The Layout Of a Hospital”。 Locate some important departments in the hospital based on the picture and information given below。 Your compositions should be no less than 100 words。
1）the Emergency Department
2）the Out…patient Department
3）the Surgery Department
4）Dispensary/Pharmacy
5）Physician Department
6）the Eye； Ear； and Throat Department
7）the Dental Department
8）the Laboratory
9）the X…ray Department
10）the Administrative Building
11）the Ward
参考范文
Near the gate； on the west side of the road is the Emergency Department。 Opposite the Emergency Department across the Main Road is the Out…patient Department。 The building to the southwest of the lake is the Dispensary； which faces the Surgery Department lying on the other side of the road。 Along the west wall； from south to north； stand three buildings： the Physician Department； the Eye； Ear； and Throat Department； and the Dental Department。 The Laboratory is to the northwest of the round about； and beside the Laboratory； the X…ray Department is located on the same side of the road。
A winding road by the lake leads to the Ward。 Near the end of the main road； the Administrative Building is situated on the east side。 The hospital is nicely and conveniently laid out。
1。 How to Lose Weight
思路提示：第一段先综述现象：大家都想保持身材要求减肥。第二段介绍多余的体重在身体中形成的原因。第三段提出相应的减肥方法。在最后一段，提出总结性的看法，指出减肥的要诀就是：减少摄入的卡路里，通过运动增加卡路里的消耗量。
参考范文
How to Lose Weight
A beautiful and healthy figure is everyone’s dream。 However； not everyone can easily fulfill this dream。 Overweight people often have to find precise ways to lose weight。
For normal healthy people； weight is gained by taking in more calories than the body needs。 Therefore； if you want to lose weight； you either have to eat fewer calories or find ways to use up more calories you take in。 Dieting is probably the most popular way of losing weight； because when on a diet； you are taking fewer calories。
However； the body needs many elements in order to stay healthy； and “fad” or starvation diets are bad because they are not nutritiously balanced。 A better way of dieting is to keep track of everything you eat； either by your own careful choices or by buying； for a week at a time； the packaged meals sold by some diet companies。 If you do not normally exercise； you should also begin sensible exercises for your age and lifestyle to help your body use up surplus calories。
In short； a combined effort of reducing the calories you eat and using up more calories than usual through exercises should help you shed off part of your body。
UNIT 1 基本技能篇（15天）Day 13 议论文的思路与练习（1）
议论文的思路与练习（1）
议论文又称论说文，是一种既常见又十分重要的文体。在四级作文考试中运用得最多。议论文通常采用摆事实讲道理的方式，围绕着某一个有争议的观点展开论证，陈述各种理由，表明作者立场、阐明作者观点看法。在文章中要明确地表明赞成什么、反对什么，用词不能模棱两可，必须明确肯定。议论文的三要素是论点、论据和论证，其中论点要鲜明，论据要合理、恰当、充分，论证过程要逻辑严密。
关于记叙文的思路打开，我这里推荐几种方法：
1。 生活化细节联想法
针对大多数相对抽象不好下手的作文题目，我们可以先把作文题同自身联系到一起，把抽象、概括的作文题细化到自己身边，先打开一个突破口，再顺藤摸瓜，进行发散式联想。请看例子：
What are your opinions about the advantages and disadvantages of fast food？
题目的主体是快餐，方向为利弊处。先不要考虑快餐是好是坏，而应该先考虑你身边的、你知道的快餐究竟有哪些，这些快餐给你或你的家人带来了哪些影响。请看一位同学记录下来的思路。请注意其跳跃性。
① 遍地都是麦当劳、肯德基、永和豆浆、馄饨、油条。
② 每次老爸不在家时，我吃鸡腿汉堡，快，省事、省时间。不用买菜，切菜，做菜，蒸饭，洗碗，擦桌子。
不过还是老爸做的饭好吃，吃麦当劳吃不饱。为什么呢？油少，没营养！
③ 永和24小时，但东西贼贵，晚上避风的好地方，粥还行，油条，烂！
④ 麦当劳小孩多，因为玩具多，电视上有很多他们的广告，小孩又哭又笑，学鸡叫的那个广告特傻，……儿童乐园。
⑤ 还是太贵。在美国，垃圾食品，到了中国，特火！洋货？老爸不爱吃汉堡，因有奶酪。不符合中国人的口味，农民就不喜欢，中国有8亿农民……
（为了方便大家阅读，我们在录入时加入了一半字数）
大家不妨问问自己两个问题：
——上面的东西不够写120字吗？
——上面的东西用英文表达难吗？
答案是否定的。试想，有了这个思路，无论怎么写