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
2023-07-01
81
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/2798462.html
相关试题推荐
[originaltext]Climatechangeismakingitharderthanusualforscientists
[originaltext]Climatechangeismakingitharderthanusualforscientists
Theearliestprocessofmakingpaperwasdonealmost5,000yearsagoinEgyp
Theearliestprocessofmakingpaperwasdonealmost5,000yearsagoinEgyp
FormanypeopleintheU.S.,sportsarenotjustforfun.Theyarealmosta
FormanypeopleintheU.S.,sportsarenotjustforfun.Theyarealmosta
FormanypeopleintheU.S.,sportsarenotjustforfun.Theyarealmosta
FormanypeopleintheU.S.,sportsarenotjustforfun.Theyarealmosta
FormanypeopleintheU.S.,sportsarenotjustforfun.Theyarealmosta
FormanypeopleintheU.S.,sportsarenotjustforfun.Theyarealmosta
随机试题
Bill’sPizzaDineI
Haveyouevernoticedthatthereisnoshortageofpeoplewillingtogiveyo
[originaltext]Overthepastdecade,theenvironmentalmovementhasexploded
职业道德的具有提高行业形象,促进全社会职业道德水准的作用。()
不宜用于大体积混凝土工程的水泥是( )。A.硅酸盐水泥 B.矿渣硅酸盐水泥
有抗震设防要求的框架结构的砌体填充墙,当墙长超过层高的( )倍时,宜设置钢筋混
患儿,男性,9岁,因前牙反而求治,病史不详。混合牙列,中切牙反,反覆盖较大,反覆
某证券公司从事上市公司并购重组财务顾问业务,下列关于其应当具备的条件描述正确的有
下列有关急性粒细胞白血病部分成熟性(M型)的叙述,错误的是A.血象中可见血红蛋白
共用题干 HaveYouFilleduptheForm?Ofall
最新回复
(
0
)