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steam
n.蒸气
steamboats-steamboat
n.汽船，轮船
In the steam-engine analogy, verbal aggression may vent some of the aggressive steam.
用蒸汽机打个比方吧，言语性的侵略可以释放些许带有侵略性质的蒸汽。
folk
n.人们adj.民间的，民众的
A folk culture is small, isolated, cohesive, conservative, nearly self-sufficient group that is homogeneous in custom and race,
民间文化是小型的、孤立的、紧密的、保守的、近乎自给自足的群体，具有同样的习俗、
with a strong family or clan structure and highly developed rituals.
同样的人种和强有力的家庭或部族结构以及高度发展的宗教仪式.
fibers-fiber
n.纤维
Although we now tend to refer to the various crafts according to the materials used to construct them-clay, glass, wood, fiber,
在现代，人们将根据工艺品的制造材质对他们进行分类，如陶土，玻璃，木头，纤维还有金属。
and metal-it was once common to think of crafts in terms of function, which led to their being known as the "applied arts."
但最初人们根据工艺品的功能将他们通通定义为“实用工艺品”。
feet
n.脚，英尺
Today, well over a century later, there is still little direct evidence of what lies beneath our feet.
一百多年后的今天，对于脚下真正隐瞒了什么，至今未找到直接证据。
drilling-drill
n.钻，钻头v.钻；钻孔
Thus drilling into the ice was tantamount to drilling back through time.
钻冰相当于穿越回从前。
act
n.法案 v.扮演；举动像
A survey is a study, generally in the form of an interview or a questionnaire, that provides information concerning how people think and act.
研究会对大众的看法和行动提供信息，通常以访问或问卷的形式存在。
wire
n.电线
Photoflash is now generated electronically, but the earliest form, first used in 1864,
我们今天所使用的是电子闪光灯，但在1864年，
was a paper bag containing magnesium wire and some oxygen-rich substance, such as potassium chlorate.
早期闪光灯实际上是一个纸袋，里面装上镁合金金属线，一些像氯酸钾等富氧物质。
remains-remain
v.剩下；保持不变
After 1785, the production of children's books in the Untied States increased but remained largely reprints of British books,
1795年后，儿童读物在美国增产，但大部分仍为英国读物的重印版，
often those published by John Newbery, the first publisher to produce books aimed primarily at diverting a child audience.
通常是约翰·纽伯里出版社读物，它是第一家旨在出版儿童读物的出版者。
related-relate
v.将（两事物）联系起来
relation
n.关系
The TVA is a unique institution in that it brings all the water-related functions of the federal government under a single body.
田纳西河流域管理局是一个特殊的组织，它将所有与水务有关的联邦政府纳入一个独立体中。
impulses-impulse
n.冲动，刺激，脉冲
Other links may involve changes in brain temperature and the release of neurotransmitters (substances that transmit nerve impulses）.
其次，他们的联系可能会涉及到大脑温度变化和神经递质的释放（传递神经冲动的物质）。
illustrate
v.举例说明，阐明
illustrations-illustration
n.例证，插图
Three of the answer choices below are used in the passage to illustrate constructive processes and two are used to illustrate destructive processes.
下面三个答案都对建造流程进行了描述，两个对破坏性流程进行了描述。
huge
adj.巨大的
For example, as the great ice sheets that covered North America during the last ice age steadily melted away, huge volumes of water flowed from them.
比如，随着冰河时代覆盖北美的巨大冰层逐渐融化，大量融水汹涌流出。
emphasize
v.强调
emphasis
n.对...的强调，加强
Instrumental leadership is leadership that emphasizes the completion of tasks by a social group.
协助领导强调社会团体对任务的完成。
survive
v.活下来，幸存
survival
n.留住生命，生存
In spite of problems with their condition, restoration, and preservation many panel paintings have survived,
尽管问题重重，但通过对画板画的修复与保护，许多作品已幸存下来，
and today many of them are housed in museum collections.
如今许多被陈列在博物馆。
settlers-settler
n.移民者
settle
v.决定，安放
settlement
n.解决；殖民
It made it increasingly possible for settlers to obtain land in the West.
殖民者在西方赢得土地的可能性增加。
paleolithic
adj.旧石器时代的
Cave art seems to have reached a peak toward the end of the Upper Paleolithic period, when the herds of game were decreasing.
在后期旧石器时代猎群数量减少时，岩洞画艺术似乎达到了顶峰。
interest
n.利息，嗜好 v.使感兴趣
The Democratic Party primarily represented the interests of the market, banks, and commerce.
民主党主要代表了市场、银行以及商业的利益。
