导语
今天带读的同学是来自
沈阳大学广播电视编导专业
李璐璐同学
璐璐同学12年毕业后
时隔7年
备考20考研
目标院校：鲁迅美术学院
今天的单词虽然不多
但是人美声甜的小姐姐
给我们拓展了不少词汇和句子
一听就知道做了很多笔记
下面就一起学习吧
ambassador
n.
大使，专使 [同] envoy
① 短语
the ambassador to China 驻华大使
② 联想
minister/envoy n.公使;
consul n领事
ambassador n.大使
amuse
vt.
➊ 逗乐，使……开心 [同] recreation，delight
❷ 给……提供娱乐 [同] entertain，delight
短语
amuse oneself自娱
analyse /-ze
vt.
分析,分解 [同] break down, resolve
[助记] 词根记忆：
ana (分开)+ lyse(放)→分开放→分解,分析
analysis
n. 分析，分解 [同] resolution, breakdown
短语
on / upon analysis 经分析
in the final / last analysis 归根结底 [同] after all
ancestor
n. 祖宗，祖先 [同] forebear，progenitor
anchor
n.锚 [同] ship hook
vt.
➊把....固定住 [同] fasten, fix
❷ 抛锚，泊(船)
vi.
➊固定 [同] fasten, attach
❷抛锚
短语
cast/drop anchor抛锚 [同] be at anchor, come to an anchor
weigh anchor 起锚 [同] break ground, unmoor
be anchored in扎根于 [同] take root, be rooted in
ancient
a. 古代的，古老的，古式的 [同] archaic, elderly
联想
ancient a.古代的
modern a.现代的
contemporary a.当代的
[名言]
Since ancient times, to learn all men must have teachers, who pass on the truth and dispel ignorance.古之学者必有师。师者，所以传道、授业、解惑也。——韩愈泛读原版 TEXT 7
Building houses and offices out of toxic waste sounds like a pretty eccentric idea. Yet it may become commonplace if Ana Andres of the University of Cantabria in Spain has her way. For Dr. Andres and her colleagues suggest, in Industrial & Engineering Chemistry Rasearch, that the humble brick need not be made of pure clay. Instead, up to 30% of its
weight could be slag—the toxic gunk left over when steel is made.
Waelz slag, to give its technical name, is composed mainly of silica but is also undesirably rich in poisonous metals like lead and zinc. Getting rid of it safely is thus a problem. Getting rid of it usefully might sound like a miracle. But that is what Dr. Andres proposes. A series of experiments she has conducted over the past three years suggests this is not only possible but will make bricks cheaper and more environmentally friendly.
Her research started after she read of previous work which had shown that many ceramics suffer no loss of integrity when the clay used to make them is mixed with other materials, and that the molecular structure of some ceramics acts to trap atoms of toxic heavy metals. She wondered whether these things might be true of brick clay and Waelz slag, and she began experimenting. The answer, she found, was that they are. Bricks show no loss of useful mechanical properties even when 20-30% of their content is slag. Nor do they leak.
To check that, Dr. Andres and her team ground their bricks into powder and soaked them in water, shook them in special machines for days at a time, and even tried to dissolve them in nitric acid. The pollutants stayed resolutely put. Moreover, adding slag to the clay reduced by a third the amount of carbon dioxide each brick released during its manufacture, because wood pulp is added to clay before it is fired, and less clay means less pulp is needed. The cost, too, fell, because slag is free, whereas clay costs money.
There is, of course, the problem of customers. Whether people will be willing to live and work in structures that double as waste dumps is moot. But for those who want to make an eco-point, what better way could there be than, literally, to build their green credentials?
閱讀更多 朱偉老師 的文章
