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
2024-01-30
20
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] When the paper is lifted from the mold, it is time to _____.
选项
A、make it smooth
B、make it strong
C、decorate it
D、iron it
答案
A
解析
最后两段是手工造纸的最后两个步骤,最后一段是最后一个步骤,表明把纸从模子中取出后,应该把纸压平,去除残留的空气,A与原文的The paper is smoothed同义,为本题答案。本题较具干扰性的是B和D。B用了倒数第2段末尾的strong一词,倒数第2段表明把纸从模子中取出时,纸已变得相当坚韧了,因此,B不符合造纸步骤的先后顺序;D用了最后一段最后一句的iron一词作干扰,但用普通电熨斗只是把纸压平的一个办法,原文未表明这是一定得用的方法,因此,D也不对。
转载请注明原文地址:https://tihaiku.com/zcyy/3408231.html
相关试题推荐
Theearliestprocessofmakingpaperwasdonealmost5,000yearsagoinEgyp
Theearliestprocessofmakingpaperwasdonealmost5,000yearsagoinEgyp
Theearliestprocessofmakingpaperwasdonealmost5,000yearsagoinEgyp
FormanypeopleintheU.S.,sportsarenotjustforfun.Theyarealmosta
FormanypeopleintheU.S.,sportsarenotjustforfun.Theyarealmosta
FormanypeopleintheU.S.,sportsarenotjustforfun.Theyarealmosta
[originaltext]Climatechangeismakingitharderthanusualforscientists
[originaltext]Climatechangeismakingitharderthanusualforscientists
[originaltext]Climatechangeismakingitharderthanusualforscientists
There’sNoPlaceLikeHome[A]Onalmostanynightofthe
随机试题
Inall(probable)______hewillgowithyou.probability
Everysecond,1hectare(公顷)oftheworld’srainforestisdestroyed.That’s
Madagascar’sMahafalecattleraisershaveincorporatedthepricklypearcact
【教学过程】 环节一:课堂导入 多媒体播放视频《升国旗仪式》并带领同学们齐唱国歌 教师提问:面对国旗,听着国歌,你们有什么感想?为什么?对身边的人和
下列属于火灾自动报警系统组件更换步骤的有()。A.确定故障点位置 B.查找故
咽的下界是位于()A.第7颈椎上缘水平 B.第4颈椎下缘水平 C
水库防护工程按功能可分为( )。A.导流引水 B.筑堤挡水 C.填筑抬高
A.上肢内侧前缘B.上肢内侧中线C.上肢内侧后缘D.上肢外侧前缘E.上肢外侧后缘
患者,男,22岁,大学生。自幼胆小内向,学习成绩较好。6周前因迟到,老师批评后急
2013年12月26日,中国社科院和社会科学文献出版社共同发布的《社会蓝皮书》显
最新回复
(
0
)