首页
登录
职称英语
The earliest process of making paper was done almost 5,000 years ago in Egyp
The earliest process of making paper was done almost 5,000 years ago in Egyp
游客
2023-06-29
21
管理
问题
The earliest process of making paper was done almost 5,000 years ago in Egypt and the Nile Valley. In those days, paper was made from strips of the papyrus plant.
Modern paper-making began in China about 2,000 years ago. This process produced paper from cloth, straw, wood or the bark of trees. The raw materials are struck over and over until they become loose. Then they are mixed with water.
After the water has been removed, the flat, thin form remaining is permitted to dry. This becomes a sheet of paper.
Large machines started to be used for making paper near the end of the 16th century. Today, paper-making is a big business. But it is still possible to make paper by hand, since the steps are the same as using big machines.
You should choose paper with small amounts of printing. Old envelopes are good for this reason. Colored paper also can be used, as well as small amounts of newspaper. Small pieces of rags or cloth can be added. These should be cut into pieces about 5 centimeters by 5 centimeters.
Everything is placed in a container, covered with water, and brought to a boil. It is mixed for about 2 hours with some common chemicals and then allowed to cool. Then it is left until most of the water dries up. The substance left, called pulp, can be stored until you are ready to make paper.
When you are ready, the pulp is mixed with water again. Then the pulp is poured into a special box or mold. The mold is made of small squares of wire that hold the shape and thickness of the paper. To help dry the paper, the mold lets the water flow through the small wire squares.
After several more drying steps, the paper is carefully lifted back from the mold. It is now strong enough to be touched.
The paper is smoothed and pressed to remove trapped air. You can use a common electric iron used for pressing clothes. [br] The passage is most probably intended to _____.
选项
A、introduce the history of paper-making
B、describe the process of paper-making
C、compare the ancient and the modern paper-making
D、argue the possibility of paper-making by hand
答案
B
解析
前4段介绍了造纸术的发展,第5段至最后一段描述了造纸的步骤,据第4段的最后一句的But…可知作者强调的是造纸的步骤,因此,本文主要是为了介绍造纸的过程,故选B。D很具干扰性,the possibility of paper-making by hand在第4段最后一句提到,但是作者在本文并没有为任何观点而argue,全文的语气是描述性的,因此,D不正确。
转载请注明原文地址:https://tihaiku.com/zcyy/2791966.html
相关试题推荐
[originaltext](5)Egyptianofficialsaremakingplanstoopenanewly-expan
[originaltext](5)Egyptianofficialsaremakingplanstoopenanewly-expan
Theearliestprocessofmakingpaperwasdonealmost5,000yearsagoinEgyp
Theearliestprocessofmakingpaperwasdonealmost5,000yearsagoinEgyp
Theearliestprocessofmakingpaperwasdonealmost5,000yearsagoinEgyp
Theearliestprocessofmakingpaperwasdonealmost5,000yearsagoinEgyp
Theearliestprocessofmakingpaperwasdonealmost5,000yearsagoinEgyp
FormanypeopleintheU.S.,sportsarenotjustforfun.Theyarealmosta
FormanypeopleintheU.S.,sportsarenotjustforfun.Theyarealmosta
FormanypeopleintheU.S.,sportsarenotjustforfun.Theyarealmosta
随机试题
FlexibleStudyfortheFutureUn
Onefeatureofnewfoundwealthinthedevelopingworldhasbeentheembrace
Peterbelievesthathisdreamwillcometruesomedayinthefuture,________?A、
书刊整体设计方案应该经过( )审核后才能定稿。A.编辑室主任、社长或主编(副社
下列药物中为雄甾烷的衍生物,在C位有酮基,C位上有双键,C位上有β-羟基的是(
患者,男性,63岁。头晕目眩,甚则晕眩欲仆,伴耳鸣,腰膝酸软,遗精,舌淡,脉沉细
既能用于痰饮,水肿,又能治疗脾虚泄泻,尤宜于脾虚湿盛泄泻的药物是A.泽泻 B
护理抑郁发作的患者首要应引起注意的问题是A:拒食导致营养不良 B:活动少而引起
在经济周期经过顶峰后,企业出现突如其来的销售增长下滑,这时()。A:企业需要增加
根据《建设工程施工劳务分包合同(示范文本)》,劳务分包人的义务之一是()。
最新回复
(
0
)