首页
外语
计算机
考研
公务员
职业资格
财经
工程
司法
医学
专升本
自考
实用职业技能
登录
外语
A、TRUE B、FALSE B
A、TRUE B、FALSE B
admin
2014-09-28
20
问题
In addition to food and shelter, man has a third basic need. This is clothing.
Modern man wears clothing for three purposes: for protection, for decoration, and for modesty. It is thought that prehistoric man wore clothing for a fourth reason, as a kind of magic. For example, he may have worn the skins of animals either to celebrate his victories over them, or perhaps to gain strength and wisdom from the animals he had killed.
Until fairly recently it was possible to use only natural materials of various kinds for the making of clothing. Both plants and animals supply these natural materials. From plants we get cotton and linen. From animals we get such materials as wool, silk, leather and furs.
Wool was one of the first fibers to be used for cloth, and for a long time it was the most common textile fiber in Europe. The fiber that we call wool comes mainly from sheep, but the hair of a few other animals is also used for cloth.
Cotton has been used for over three thousand years, especially in warm countries. Cotton material was not known in Europe until much later. Material made from the cotton plant can be very soft, cool and comfortable. The finest cotton materials were very expensive at one time, and only the rich people could buy them. Two other fibers, linen and silk, have also been used extensively in the making of clothing.
In addition to the natural materials from plants and animals, modern man now has cloth which is made synthetically. Early in the seventeenth century it was first suggested that fibers could be produced synthetically. However, it was not until 1884 that the first artificial fiber was made. Called artificial silk, the fiber was made by treating cellulose with chemicals. Scientists continued to experiment with various ways of working with cellulose and they produced many different kinds of fibers-among them, rayon.
In the twentieth century, man has learned to create completely synthetic fibers. These are made from coal, glass, petroleum, milk and wood. Nylon, dacron and orlon are the names of a few of these synthetic fibers. Recent synthetic products include disposable paper clothing and artificial leather.
In many ways synthetic fibres are much better than natural fibers. It is possible to create specific fibres to be used for specific purposes. Of all the fibers now used by man, a very large percentage is man-made.
选项
A、TRUE
B、FALSE
答案
B
解析
转载请注明原文地址:https://kaotiyun.com/show/ZSXd777K
本试题收录于:
公共英语五级笔试题库公共英语(PETS)分类
0
公共英语五级笔试
公共英语(PETS)
相关试题推荐
WhatarethecharacteristicsofStandardEnglish?ThestronginfluenceofStandardEnglishiscausing
WhatarethecharacteristicsofStandardEnglish?Intermsofgrammarandvocabulary,StandardEnglish
ThepurposeofthefirstparagraphistoThewriterusesexaggerationinorderto
Thesedayswearesoaccustomedtotelegraphmessages(31)itishardforustoimaginetheexcitementthatwasfeltinthenine
Thesedayswearesoaccustomedtotelegraphmessages(31)itishardforustoimaginetheexcitementthatwasfeltinthenine
Forsomeeducators,thereisnothingwrongwithfunandgames.AgroupcalledtheEducationArcaderecentlyheldaconference
Whatisnotthepossiblecauseforthesharpincreaseinbreastcancer?Intheexperiment,teenagers______.
WhatdoesthespecificstudyconductedatHarvardUniversityprove?
______theU.S.willproposetariff-cuttingintwophases?______theU.S.putforwardapaperaboutreasonsofunfairtrade?
LincolnUniversity,beginningasaschoolofagriculture,istheoldestinstitutioninthecommonwealth.
随机试题
钩端螺旋体致病的毒素成分包括
A稀盐酸B稀硝酸C稀硫酸D醋酸盐缓冲液(pH3.5)E盐酸重金属检查的反应条件是
A.鉴别培养基B.厌氧培养基C.基础培养基D.营养培养基E.选择培养基能判断细菌对糖或蛋白质的分解能力的培养基是
施工现场运输道路的宽度应符合单行道不小于()m。
()是以服务器为核心,利用网络来传送音视频数据和文件,实现自动化的方式和并行的工作模式,实现资源共享、提高工作效率。
根据《财政部关于印发〈企业产品成本核算制度〉(试行)的通知》,下列工程成本费用中,属于其他直接费用的是()。
“经营单位”栏:“征免性质”栏:
下列选项在性质上属于统计行政规章的是()。
举世瞩目的“丝绸之路”是在()开通的。
根据我国宪法和有关法律的规定,我国县级人民代表大会或人民政府可以设立的机构有()。
最新回复
(
0
)