首页
登录
职称英语
[originaltext] The earliest process of making paper was done almost 5,000 ye
[originaltext] The earliest process of making paper was done almost 5,000 ye
游客
2024-03-08
20
管理
问题
The earliest process of making paper was done almost 5,000 years ago in Egypt. In those days, paper was made from strips of a special plant. Modern paper-making began in China about 2,000 years ago. At that time, paper was made from cloth, straw, wood or the bark of trees. 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’s 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. They should be cut into pieces about five centimeters by five centimeters. Everything is placed in a container, covered with water and brought to the boil. It is mixed for about
two hours with some common chemicals and then allowed to cool. Then it’s left until most of the water dries up. The substance left, called pulp, can be stored until you’re ready to make paper. When you’re ready, the pulp is mixed with water again. Then the pulp is poured into a 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’s now strong enough to be touched.
Questions 9 to 12 are based on the passage you have just heard.
9.Which of the following is used in the earliest paper-making?
10. What is the most ideal material for making paper by hand?
11.What is the purpose of a mold in making paper?
12.What does the passage mainly tell us?
选项
A、To mix pulp with water.
B、To keep the shape and thickness of the paper.
C、To keep the paper strong enough.
D、To dry the paper quickly.
答案
B
解析
转载请注明原文地址:https://tihaiku.com/zcyy/3516759.html
相关试题推荐
[originaltext]Thetimeis9o’clockandthisisMarianSnowwiththenews.
[originaltext]Thetimeis9o’clockandthisisMarianSnowwiththenews.
[originaltext]It’salwaysfuntowriteaboutresearchthatyoucanactually
[originaltext]It’salwaysfuntowriteaboutresearchthatyoucanactually
[originaltext]Amongglobalwarming’smostfrighteningthreatsisthepredic
[originaltext]FlorenceHayesisajournalistfortheGreenVilleJournal,t
[originaltext]FlorenceHayesisajournalistfortheGreenVilleJournal,t
[originaltext]Somehowtheoldmaleandfemalestereotypesnolongerfit.Me
[originaltext]Somehowtheoldmaleandfemalestereotypesnolongerfit.Me
[originaltext]ThereareroughlythreeNewYorks.Thereis,first,theNewY
随机试题
Parentsoftenwonderwhattheirlittleonesareabsorbingfromthem.Forexa
Thisnewstyleofsportsshoesisverypopularanditis______inallsizes.A、i
A、Anareaoflowconservationvalueandlowfinancialvalue.B、Anareaoflowco
煤气中毒是指()中毒。A.一氧化氮 B.硫化氢 C.一氧化碳 D.二氧化
外表面灰白色或灰棕色、黑棕色,密布多数灰白色圆点状皮孔,内表面黄白色或黄棕色,味
健康者进入高原地区发生缺氧的主要原因是A.吸入气氧分压低 B.肺换气功能障碍
编制历史文化名城保护规划的依据有()。A.《中华人民共和国城乡规划法》
注册监理工程师从事执业活动时享有的权利有( )。(新教材删除该知识点,题目仅供参
医疗机构在处理医疗事故过程中发生涂改、伪造、隐匿、销毁病历资料的违法行为时,应当
定期考核不合格的医师暂停执业活动期满,再次考核仍不合格的A、再次接受培训 B、
最新回复
(
0
)