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
35
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
以下不属于金融衍生品的是()。A.股票 B.远期 C.期货 D.期权
假设某硬盘由5个盘片构成(共有8个记录面),盘面有效记录区域的外直径为30cm,
女性,35岁。甲状腺功能亢进,查体:眼球下转时上睑不能相应下垂,该患者此体征称为
A.胃 B.皮肤 C.大肠 D.小肠 E.口霍乱弧菌通常由什么途径进入人
患者男,67岁,腹大胀满,按之如囊裹水,下肢浮肿,脘腹痞胀,得热稍舒,怯寒神倦,
伴有糖尿病的水肿病人,不宜选用哪一种利尿药A.氢氯噻嗪 B.呋塞咪 C.螺内
某小儿能作文并能左右转身,可用上肢向前爬,并能用拇、示指取物,但还不可以独自站立
在SF6断路器开关室()应安装能报警的氧量仪和SF6气体泄漏报警仪,在工作人
从所给的四个选项中,选择最合适的一个填入问号处,使之呈现一定的规律性:
某二级耐火等级的5层大学宿舍,住宿床位数550张,总建筑面积3000m2,建筑内
最新回复
(
0
)