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
47
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://www.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
Duringrecentyearswehaveheardmuchabout"race":howthisracedoescert
Thecrowdsuddenlyburstinto______.A、laughB、laughersC、laughingD、laughterD本
[originaltext]M:Icouldn’tputupwithmywifeanylonger.Idon’tknowwhysh
[originaltext]M:Hi,MissRowling,howoldwereyouwhenyoustartedtowrite?
In1948,peoplelivinginremoteareascouldseeTVprogramsby______intheUn
TheworkforwhichThomasMalthusisstillmostwidelyknownishisEssayon
突发事件监测机构、医疗卫生机构和有关单位发现有本条例第十九条规定情形之一的,应当
下列关于中药吸湿性影响因素的叙述,错误的是A.空间的温、湿度B.储存空间大小C.
急性细菌性咽-扁桃体炎有别于其他上呼吸道感染的突出表现是A.起病急 B.发热
在货币流通规律中,货币需求量M与其他相关变量的关系正确的是( )。A.与物价水平
最新回复
(
0
)