People hold different views about X. Some people are of the opinionthat
观点1. While others point out that
观点2. As far as I am concerned, the former/latter opinion holds moreweight. For one thing,
论据1. For another,
论据2. Last but not the least,
论据3. To conclude, 总结观点. As a college student, I am supposed to 表决心。或From above, we can predict that预测。
表格说明。即在说明事物或知识时,把与之有关的数字列成表格,插于说明文字之中。表中所列项目,根据说明需要而定。这样说明,既清晰集中,又能进行比较,便于理解和记忆。例如《万紫千红的花》这篇说明文第七自然节,在说明花的颜色时,就列出了表格:
这个表格里的项目有花的颜色和种数两类,共有9种花色,从而形成比较,有力地说明了花色之中白色最多黑色最少的`特点,将被说明的对象介绍得一清 二楚。至于花的姿态,花的开放时间以及花呈不同色彩的原因,表中均末列项,这就既紧扣了课题万紫千红,又突出了说明的重点。
插图说明。有些事物须用图示才能说得清楚,如某种新产品的介绍,某种科学知识的解说,某种复杂的事物的说明等,就常常在文学中配上插图或示意 图,以助文字说明。例如《统筹方法》,在介绍统筹方法时,就先后列举了三个示意图,一是相互关系箭头图,二是工作合并图,三是数字表示任务图,分别如下:
这三幅示意图,形象地再现了统筹方法的主要内容,通过图示不难看出,关系清楚,顺序明了,谁优谁劣不言而喻,从而使这种复杂的科学方法简单化了,给人以鲜明直观的深刻印象,是语言文字所无法比拟的。
运用图表助示法说明事物,表格的项目不可设计过繁,将可比的几个事物或几种知识的主要比项列出即可。图表应放在文中与被说明文字密切相关之处。 图表虽是全文的有机组成部分,但不可过多运用,它只是为文字服务的,起助说作用,图表一多,令人眼花缭乱,容易给人以厌烦和累赘之感。
Nowadays, advertisements can be found everywhere in big cities. They shout at us from the television screen and radio loudspeakers, wave to us from every page of the newspaper, signal to us from the roadside billboards all day and flash messages to us in colored lights all night.
Faced with a flood of advertisement, some people wonder whether it is necessary to have such huge sums spent on advertising. They often cite in illustration of it the attractive, but false and deceptive advertisements to which many consumers fall victim. Why don't we stop advertising and use the money to reduce the price of goods? It sounds like a good idea, but they fail to notice the contribution advertising makes to our society. Because the production of a better product to compete for customers' money is the goal of advertisers, customers are thus given a chance to compare their products and get the best and cheapest one. Besides, as the advertisement can provide people with a lot of immediate and detailed information as to the availability of a certain product, or a service or a job, it makes life much more convenient. And another thing we mustn't forget: the fact that we pay so little for our daily newspapers and TV programs is due entirely to the money spent by advertisers.
Advertising performs such a useful service to our society that we can't imagine what would happen if there were no advertisements. (198 words
②纳米科技以空前的分辨率为人类揭示了一个可见的原子、分子世界,它的最终目标是直接以原子和分子来构造具有特定功能的产品。人们普遍认为,纳米科技是信息和生命科学技术能够进一步发展的共同基础,将对人类未来产生深远影响。
③从90年代初起,纳米科技得以迅速发展,新名词、新概念不断涌现,如纳米电子学、纳米材料学、纳米机械学、纳米生物学等等。
④科学家为我们勾勒了一幅若干年后的蓝图:纳米电子学将使量子元件代替微电子器件,巨型计算机能装入口袋里;通过纳米化,易碎的陶瓷可以变成韧性的,成为一种重要材料;世界上还将出现1微米以下的机器甚至机器人;纳米技术还能给药物的传输提供新的方式和途径,对基因进行定点等。
⑤正因为如此,世界各国尤其是发达国家都从战略高度部署纳米领域的研究。
1.根据第①段文字,给“纳米科技”下一个定义。
2.从文章看,纳米科技有什么深刻意义?从文中选取有关语句回答。
3.第①段和第④段中加点的“略”“将”能否删去?请分别简要说明理由。
参考答案
1……纳米科技就是以0.1至100纳米这样的尺度为研究对象的前沿学科。
2.纳米科技是信息和生命科学技术能够进一步发展的共同基础,将对人类未来产生深远影响。
3.不能。如果删去“略”,就成了1纳米等于45个原子排列起来的长度;删去“将”,“蓝图”就成了事实,显然与原意不符。
© 2022 xuexicn.net,All Rights Reserved.