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
2024-02-03
7
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] What is mentioned about the earliest process of making paper?
选项
A、Its procedures.
B、Its influences.
C、Its purposes.
D、Its materials.
答案
D
解析
原文第1段第1句提到最早的造纸方法,第2句指出了最早的造纸原料来自于一种叫“纸草”的植物,因此,本题应选D。原文只有第1段与earliest paper-making有关,A、B、C均缺乏原文依据。
转载请注明原文地址:https://tihaiku.com/zcyy/3418022.html
相关试题推荐
Therearerareinstanceswhenjusticealmostceasestobeanabstract【C1】___
Therearerareinstanceswhenjusticealmostceasestobeanabstract【C1】___
Therearerareinstanceswhenjusticealmostceasestobeanabstract【C1】___
Therearerareinstanceswhenjusticealmostceasestobeanabstract【C1】___
MuchofCanada’sforestryproductiongoestowardsmakingpulpandpaper.Acc
MuchofCanada’sforestryproductiongoestowardsmakingpulpandpaper.Acc
MuchofCanada’sforestryproductiongoestowardsmakingpulpandpaper.Acc
MuchofCanada’sforestryproductiongoestowardsmakingpulpandpaper.Acc
MuchofCanada’sforestryproductiongoestowardsmakingpulpandpaper.Acc
MuchofCanada’sforestryproductiongoestowardsmakingpulpandpaper.Acc
随机试题
Everythingaboutmyfuturewasambiguouslyassumed.Iwouldgetintodebtby
[originaltext]W:Thisevening,theguestspeakerwithusisDr.Bush.He’sgoin
考虑下列两种投资策略: 策略()是有优势的策略,因为()。A.1;它有
A.心肾不交证 B.心脾气血虚证 C.心肾阳虚证 D.心脉痹阻证 E.心
从2018年11月5日到10日,中国国际进口博览会在上海召开。这是中国第一次举办
一个只关心风险的投资者将选取()作为最佳组合。 A.最小方差B.最大方差
(2019年真题)根据税收征收管理法律制度的规定,下列关于纳税申报的表述中,正确
银行承兑汇票的承兑银行,应当按照票面金额向出票人收取()的手续费。A:千分之一
FIDIC生产设备和设计—施工合同中,业主应该承担风险的有()。A.设计风
(2020年真题)2019年12月10日,某热力公司供热锅炉发生故障。故障抢修过
最新回复
(
0
)