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
2023-08-17
30
管理
问题
The earliest process of making paper was done almost 5 000 years ago in Egypt.(9)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.(10)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.(11)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.
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
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/2933168.html
相关试题推荐
[originaltext](22)WhenHolly,thehousecat,turnedupamilefromtheWes
[originaltext](22)WhenHolly,thehousecat,turnedupamilefromtheWes
[originaltext]Theysaythatwritingaboutmusicislikedancingaboutarchi
[originaltext]Theysaythatwritingaboutmusicislikedancingaboutarchi
[originaltext]W:Well,youseemtohavesomethingonyourmind,Philip.M:Yes,
[originaltext]W:Well,youseemtohavesomethingonyourmind,Philip.M:Yes,
[originaltext]W:Waitaminute!Let’slistentothatstation,Frank!Doyoukno
[originaltext]W:Waitaminute!Let’slistentothatstation,Frank!Doyoukno
[originaltext]M:Goodmorning,Madam.CanIhelpyou?W:Yesterdaymydaughter
[originaltext]M:Goodmorning,Madam.CanIhelpyou?W:Yesterdaymydaughter
随机试题
Necessitycanspurnovelty.Evenpoliticalnovelty.Astheneedforfiscala
Theconceptofobtainingfreshwaterfromicebergsthataretowedtopopula
为宣传出版社形象,X出版社社长办公会议决定由青年读物编辑室主任Z根据社里的资料,
A.0.856 B.0.901 C.0.918 D.0.956
传染病隔离期限的确定依据是A:该病的传染性 B:病程长短 C:传染病的最长传
某零件质量要求30±0.15,抽样n=100件,计算得=30.05,σ=0
下列关于机动车交易市场灭火器配置的说法,正确的是()。A.机动车交易市场单具灭
由建行大学和新金融人才产教结合联盟在上海发起了声势浩大的()活动,该活动于2
共用题干 嘉宝公司是一家机械制造企业,公司有员工3500人左右,但由于公司不关
(2020年真题)甲公司将某住宅项目发包给乙公司施工,并与丙公司签订监理合同。乙
最新回复
(
0
)