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
2024-04-17
20
管理
问题
The earliest process of making paper was done almost 5 000 years ago in Egypt.(16)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.(17)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.(18)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.
16. Which of the following is used in the earliest paper-making?
17. What is the most ideal material for making paper by hand?
18. What is the purpose of a mold in making paper?
19. 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
事实细节题。本题问的是在造纸时使用模具的目的。短文末尾部分提到造纸时模具的作用是保持纸的形状和厚度。
转载请注明原文地址:https://tihaiku.com/zcyy/3558915.html
相关试题推荐
[originaltext]Isitpossibletopersuademankindtolivewithoutwar?Wari
[originaltext]Undernormalconditionstheactofcommunicationrequiresthe
[originaltext]Undernormalconditionstheactofcommunicationrequiresthe
[originaltext]BillGates,theheadoftheworld’sbiggestcomputersoftware
[originaltext]BillGates,theheadoftheworld’sbiggestcomputersoftware
[originaltext]W:Hello.Isthistheregistrationoffice?M:Yes.ThisisHerber
[originaltext]M:Comein,Rose.Coffee?W:Thankyou,Jack.M:Howaboutthevi
[originaltext]M:Comein,Rose.Coffee?W:Thankyou,Jack.M:Howaboutthevi
[originaltext]W:Imadeabigmistaketoday.Ireadastudent’sarticletothe
[originaltext]W:Imadeabigmistaketoday.Ireadastudent’sarticletothe
随机试题
Languageisfantasticallycomplex.Itsbuilt-inmeansofcombiningandrecom
[originaltext]W:Ineedsomeaspirin,please,andI’dalsoliketogetthispre
关于正序和负序网络说法不正确的是()。A.正序和负序是三相对称的 B.中性点
目前的报道认为幽门螺杆菌引起萎缩性胃炎和诱发胃癌的菌株多数是A.cagA基因阴性
社会主义法治理念反映和指引着社会主义法治的性质、功能、目标方向、价值取向和实现途
下列企业人力资源计划类型中,将目标定为提高员工知识技能和改善工作作风的是(
下列属于非系统风险的有()。A.信用风险 B.经营风险 C.利率风险
水泥的性能指标不包括()。A、细度B、硬度C、强度D、水化热
【2017案例二~3】 【背景资料】 某安装公司中标一机床厂的钢结构厂房制
在风险处置方法中,对于损失大,概率小的风险处置措施是()。A.规避 B.缓解
最新回复
(
0
)