Whether your argument is reasonable or not depends heavily on the evidence you marshal to support it.
论据用来支持观点,论据的使用直接决定了论证的合理性。
(一) 抓住事物特征,把握说明中心
任何事物都具有自身的质的规定性,一个事物的特征是区别于其它事物的标志。写说明文只有抓住事物的特征,才能把被说明的事物准确清晰地介绍给读者,让人们对事物有确切的了解。事物往往有方面的特征,介绍事物时,不可能在一篇说明文里面面俱到;只能根据需要,一次谈一两个特征。因此,要写好说明文,还必须把握说明文的中心。如:《漫活圆周率》是一篇介绍数学基础的说明文。文章题为“漫话”,并没有漫无边际地随意堆砌关于圆周率的材料,而是围绕求出圆周率的更精确的数值这个中心,向人们介绍了古今中外数学家对圆周率的数值所做的贡献。
抓住事物特点,把握说明中心,这是写说明文的一个重要要求,要做到这一点,写作者必须在写作前对被 说明的事物作深入细致的研究。必须懂得只有熟悉被说明的事物,认识并掌握被说明事物本身的规律性,才能做到这一点。
(二) 针对具体情况,选好写作角度
写说明文选取什么角度要依实际情况而定。比如,介绍牛的知识,如果是为饲养者写的,要侧重介绍牛的生活习惯和特性;如果是为使用者写的,要侧重介绍牛的功能和力气;如果是为兽医写的,则主要介绍它的身体构造;如果是为食用者写的`,可以主要介绍它的营养价值。当然,作为科普知识介绍,不妨全面一点为好。
(三) 务求解说清楚、做到条理分明
写说明文的目的就是让人获得知识的技能,只有解说清楚,才能达到这个目的。说明说明,一说即明,如何解说清楚,要讲究说明的方法,注意结构的安排,着力语言的运用。关于说明的方法,这里就不详细介绍了。这里着重讲讲结构安排的条理性问题。
文章的条理性是客观事物、事理本身的特点、规律在文章结构上的反映。说明文解说事物、阐释事理要按其本身的条理来安排说明的次序,使之层次清楚,主次分明,安排说明文的结构首先要注意条理性。如何具体安排结构,不同类型的说明文有不同要求,介绍产品制作过程的说明文,往往按照产品生产工序来安排结构,如叶圣陶的《景泰蓝的制作》是一篇介绍手工工艺品景泰蓝的说明文。它按照制作工艺的程序,抓住“做胎”、“掐丝”、“涂色”、“烧制”、“打磨”五道关键工序依次作了详细具体的说明,全篇言之有序,给人的印象十分鲜明。这一类安排,以时间变化为序,着重写事物的过程。
(四)语言准确简明,文字通俗浅显
选用准确的语言,精当地解说事物的事理,是说明文语言的基本要求。说明文是以介绍知识性内容为主的,只有如实反映被说明内容的客观情况,才能保证知识的科学性。相反,语言不准确就会失去知识的科学性。
明代学者徐光启笔译古数学家欧几里得的《几何原理》,其中的一节:
凡论度必始于一体。自点引之而为线,自线广之而为面,自面积之而为体,各自三大纲。是心有长而无阔者谓之线,有长与阔而无厚者谓之面,长与阔厚俱全者谓之体。唯点无长阔厚薄,其间不能容,不可以数度,然线之两端即点,而线面体皆由此生。点虽不入于数,实为从数之本。
这节解说数学基本概念的说明文,把什么是点、线、面、体,点与数度的联系和区别作了确切的阐释,语言也很精当。
此外,在说明文中往往有些内容是带有专门化的科学知识,涉及一些专门名词和专业术语,在说明中特别要求把它们运用得准确无误,使读者便于领会。如:“航空”与“航天”是两个不同的概念,有篇文章作了这样的解说:“飞机在大气层内飞行,称为航空;卫星、飞船在大气层外飞行,称为航天。它们是采用不同的飞行器在不同的空间来完成飞行任务的”。这种解说是十分准确的,使人对什么叫“航空”、什么叫“航天”得到了科学的了解。
目前,学校存在少数学生考试作弊现象。
某英文杂志社拟对此现象向中学生征文,标题是“My Opinion on Cheating in Examinations”。
请根据下列提示用英语写一篇征文稿。
内容要点如下:
注意:1.短文必须包括所有内容要点,可适当发挥;
2.短文标题与开头已为你写好,不计入总词数;
3.词数:100左右。
4.参考词汇:作弊cheat(v.)
My Opinion on Cheating in Examinations
It is known to us all that some students cheat in examinations at school.____________
One possible version
My Opinion on Cheating in Examinations
It is known to us all that some students cheat in examinations at school.
As students, we often take examinations at school, but sometimes we have too many examinations which are too difficult for us. On the other hand, some of us are lazy and don’t work hard at their lessons. So when taking examinations, they sometimes cheat in order to get better results to please their parents and teachers.
In my opinion, it is wrong to cheat in examinations because it breaks the rules of schools. We students should be honest and try to get good results by studying hard instead of cheating in examinations. What’s more, we should improve our study methods and get well prepared for examinations.
When you revise your argument, do it at least two stages—revising underlying meaning and structure.
在你修改议论文时,至少需分两个阶段,包括文章内在的含义和文章的整体结构。
假如你在一间书店(该书店卖各种杂志和书籍里打工,书店的老板是一个英国人。
每天很少顾客光顾,书店老板请你提出一些吸引顾客的建议。
注意:1、用英语表达,词数:120字左右。
2、可以编写对话或使用其他叙述方式。
One possible version:
them with interesting magazines and books.a poster outside announcing subjects of interest,such as music,films,video,football and so on.a special introductory price for first—time customers.Once they have come into the shop they will then see the other attractions.
where they can trade old books for new ones at a special price.in the shop where books and magazines interesting to them are on show.Invite them to come and sit in the comfortable chairs provided to meet their friends and look through books and magazines.
An arguement subject must be arguableg—that is, reasonable people will disagree over it and be able to support their positions with evidence.
一个议论文的题材必须有辩论的余地,也就是说,理性的人会对题材持不同的意见并能够用论据支持他们的立场。
Conceiving a thesis statement 构思
The thesis is the main idea of your paper. In an argument the thesis statement makes the claim that you want your readers to accept or act on.
论点是文章的主要观点。在议论文中,论点陈述句做出论断,请读者接受论断或采取行动。
Analyzing your purpose and your audience 分析写作目的和读者
Your purpose in argument is, broadly, to engage readers in order to convince them of your position or persuade them to act.
议论文的`目的一般是要使读者信服你的立场或说服他们采取行动。
好的文章动静结合、张弛有度有节奏感。句式也是一样,要有变化性,这不仅能使文章更生动,也是语言表达方式的需要和表达能力的体现。句式的`变化,主要是要注意两点:
● 不要从头至尾使用一种句型。
● 长短句结合。
由于语言功底的欠缺和惯用思维,很多人写的文章一种句式到头,如:
I think …
I hope…
He does it.
He will take it
这样的文章虽然意思表达出来了,却显得呆板,欠生动。解决的办法是:
1.间或使用主从复句。
Because he is very much determined, he will carry it out this time. (原因
比较:He is very much determined. He will carry it out this time.
2.使用分词结构句。
The weather being fine, a large number of people went sightseeing.
比较:The weather is fine. A large number of people went sightseeing.
Africa is the second largest continent, its size being about three times that of China.
比较:Africa is the second largest continent. Its size is about three times that of China.
3.使用不定式句。
To be or not to be, that is a question. (莎士比亚
To study or not to study, that is much different.(引申
To do it well, you must plan it well.
比较:You want to do it well. And you must plan it well.
4.倒装句
Only when we fully recognize its importance can we have control of its essence.
比较:After we fully recognize its importance, we can have control of its essence.
No sooner had he arrived home than it began to rain.
比较:He arrived home. And it began to rain.
5.失衡句
whether or not he will come is still unknown to all the people present.
比较:No one present knows whether he will come or not.
That he has done it all by himself is known to everyone.
比较:Everyone knows that he has done it all by himself.
当然,句子并不是越长越好,也不是越复杂水平就越高。凡事皆有度。太多长句的堆砌让人觉得是买弄。有时侯,一个短小精辟的句子可以起到画龙点睛的作用。特别是在文末段尾。比如:
●As a creature, every one knows.
●Actions speak louder than words.
●Practice makes perfect.
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