首页
登录
职称英语
[originaltext] The earliest process of making paper was done almost 5 000 yea
[originaltext] The earliest process of making paper was done almost 5 000 yea
游客
2024-03-31
43
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. (12)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.
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:http://tihaiku.com/zcyy/3535144.html
相关试题推荐
[originaltext]Todaylet’stalkaboutsocialnetworking.Firstlet’stalkab
[originaltext]Todaylet’stalkaboutsocialnetworking.Firstlet’stalkab
[originaltext]ThereissayinginAmericaneducationalcirclesthatHarvard
[originaltext]FacebookfounderMarkZuckerbergrecentlysurprisedChineses
[originaltext]FacebookfounderMarkZuckerbergrecentlysurprisedChineses
[originaltext]FacebookfounderMarkZuckerbergrecentlysurprisedChineses
[originaltext]Inaway,allofusareonaspaceship—theplanetEarth.Wem
[originaltext]Inaway,allofusareonaspaceship—theplanetEarth.Wem
[originaltext]IntheUnitedStates,manypeopleoncelivedinlarge,two-an
[originaltext]IntheUnitedStates,manypeopleoncelivedinlarge,two-an
随机试题
Offeringagiftcanbeamutualpleasure;somemightsayitshouldbeaplea
Accordingtothepassage,Chinaisaleadingbuyerof_________.[originaltext]
某检验批总量为130件,经检验合格件数为108件,则该检验批不合格率为()
与选择性冠状动脉造影技术无关的是A.常规选用50%~60%离子型或非离子型对比剂
A.急性化脓性骨髓炎 B.蜂窝织炎 C.软骨细胞瘤 D.骨髓瘤 E.局限
10个月小儿,双胎之一,因间断腹泻、食欲不佳,体重不增就诊。查体:欠活泼,体重7
某商品销售收入为80000元,销售退回与折让为5000元,销售毛利为30000元
患者,女,50岁,因反复呕吐5天入院。血清钠118mmol/L,脉搏120次/分
( )是现代财政制度的基础。A.现代政府预算制度 B.财政收支平衡 C.中
经空气传播的传染病其流行特征不包括A.夏秋季节高发 B.受居住条件和人口密度的
最新回复
(
0
)