Statistics
There were two widely divergent influences on the early development of statistical methods. Statistics had a mother who was dedicated to keeping orderly records of government units (states and statistics come from the same Latin root status) and a gentlemanly gambling father

Coal-fired power plants
The invention of the incandescent light bulb by Thomas A. Edison in 1879 created a demand for a cheap, readily available fuel with which to generate large amounts of electric power. Coal seemed to fit the bill, and it fueled the earliest power stations. (which were set up at the end of the nineteenth century

Obtaining Fresh water from icebergs
The concept of obtaining fresh water from icebergs that are towed to populated areas and arid regions of the world was once treated as a joke more appropriate to cartoons than real life. But now it is being considered quite seriously by many nations,

The source of Energy
A summary of the physical and chemical nature of life must begin, not on the Earth, but in the Sun; in fact, at the Sun's very center. It is here that is to be found the source of the energy that the Sun constantly pours out into space as light and heat. This energy is librated at the center of the Sun as billi

Vision
Human vision like that of other primates has evolved in an arboreal environment. In the dense complex world of a tropical forest, it is more important to see well that to develop an acute sense of smell. In the course of evolution members of the primate line have acquired large eyes while the snout has shrunk to give the eye

Folk Cultures
A folk culture is a small isolated, cohesive, conservative, nearly self-sufficient group that is homogeneous in custom and race with a strong family or clan structure and highly developed rituals. Order is maintained through sanctions based in the religion or family and interpersonal. Relationships are strong. T

Bacteria
Bacteria are extremely small living things. While we measure our own sizes in inches or centimeters, bacterial size is measured in microns. One micron is a thousandth of a millimeter: a pinhead is about a millimeter across. Rod-shaped bacteria are usually from two to four microns long, while rounded ones are generally one

Sleep
Sleet is part of a person's daily activity cycle. There are several different stages of sleep, and they too occur in cycles. If you are an average sleeper, your sleep cycle is as follows. When you fist drift off into slumber, your eyes will roll about a bit, you temperature will d

Cells and Temperature 　
Cells cannot remain alive outside certain limits of temperature and much narrower limits mark the boundaries of effective functioning. Enzyme systems of mammals and birds are most efficient only within a narrow range around 37C;a departure of a few degrees from this value seriously impairs their functioning.

主题：有关茶的一篇短文
Afternoon Tea
by Emily Hiestand
Tea is the steady companion of the Scottish day, and each hotel, no matter how humble, stocks its rooms with supplies for brew-ups: electric pot for boiling water, ceramic pot for brewing, china cups and small tea-creamers, a raft of teas, honey, fresh milk, and lemons. This

    1. Nonsense! 鬼话！
    2.You make me sick! 你真让我恶心！
　　3. What’s wrong with you? 你怎么回事？
　　4. You shouldn’t have done that! 你真不应该那样做!
　　5. You’re a jerk! 你是个废物/混球！
　　6. Don’t talk to me like that! 别那样和我说话!
　　7. Who do you think you are? 你以为你是

· Lose one’s shirt一文不值
· Mess around with瞎搞；乱动
· Touch and go情势危急
· Handwriting on the wall.显而易见的危险
· Spread oneself too thin 心力交瘁
· run-down筋疲力尽
· We look forward to the dawn of better days.我们期待好日子的来临
· Variety is charming.丰富多彩就是美
· Two of a trade never agree.同行是冤家
· The sudden news frighte

· Great minds think alike 英雄所见略同；Being criticized is awful 被人批评真痛苦
· One should love animals. They are so tasty. 每个人都应该热爱动物，因为它们很好吃。
· I´m glad I kept my fingers crossed. 我很高兴一直都这么幸运。
· He is an operator. 他是个老油条。Don´t get on my nerves! 不要搅得我心烦
· Let´s find a happy medium. 我们还是找一个折衷的办法；It

１
夏天的飞鸟，飞到我的窗前唱歌，又飞去了。
秋天的黄叶，它们没有什么可唱，只叹息一声，飞落在那里。
stray birds of summer come to my window to sing and fly away.
and yellow leaves of autumn, which have no songs, flutter and fall
there with a sign.
２
世界上的一队小小的漂泊者呀，请留下你们的足印在我的文字里。
o troupe of little vagrants of the w

1. After you.你先请。这是一句很常用的客套话，在进／出门,上车得场合你都可以表现一下。
2. I just couldn't help it.我就是忍不住。想想看，这样一个漂亮的句子可用于多少个场合？下面是随意举的一个例子：
I was deeply moved by the film and I cried and cried. I just couldn't help it.
3. Don't take it to heart.别往心里去，别为此而忧虑伤神。生活实例：
　　This test isn't that important. Don'