发布时间：2016-07-15 来源：中学网校 发布人：tusya
Australia is called the Land Down Under (地球的另一边)because it is below the equator(赤道). It is one of the seven continents (大陆)of the world. It is also a country.
The first people to live in Australia were aborigines.(土著居民) Aboriginal means first. They were like our Native Americans. Today there are still aborigines in Australia. You can see some examples of their beautiful art if you visit Australia.
Australia is like the United States in many ways. Most people live in or near cities. They speak English. They work in buildings like your parents.
Australia is about the size of the United States (not including Alaska).(澳大利亚的面积和不包括阿拉斯加在内的美国差不多) 18.3 million people live there, about as many people as in New York. Canberra is the capital of Australia.
The weather in Australia is warm and pleasant. The warmest months in Australia happen when we are having winter in the United States. January and February are the warmest months, with average(平均) temperatures between 65° and 70° F. June and July are the coldest months, with an average temperature of about 50° F, except in the Australian Alps,(高山) where temperatures average 35° F.
The middle part of the country is called the outback(内陆地区). The outback does not get very much rain and is very dry. Not very many people live in the outback.
There are about ten times more sheep than people in Australia. Sheep are raised for wool and for meat. (饲养绵羊是为了获取它们的毛和肉)
“Time,” says the proverb, “is money”. This means that every moment well spent may put some money into our pockets. If our time is usefully employed, it will either turn out some useful and important piece of work which will fetch its price in the market, or it will add to our experience and increase our capacities so as to enable us to earn money when the proper opportunity comes.
Our life is nothing more than our time. To kill time is therefore a form of suicide. We are shocked when we think of death, and we spare no pains, no trouble, and no expense to preserve life. But we are too often indifferent to the loss of an hour or of a day, forgetting that our life is the sum total of the days and of the hours we live. A day or an hour wasted is therefore so much life lost. Our life is a brief span (时间段) measuring some seventy or eighty years in all. But nearly one third of this has to be spent in sleep; some years have to be spent over our meals; some in making journeys on land and voyages by sea; some in merrymaking (嬉笑玩乐); some in watching over the sick-beds of your nearest and dearest relatives. Now if all these years were to be deducted from the term over which our life extends, we shall find about twenty or thirty years at our disposal for active work. Whoever remembers this can never willingly waste a single moment of his life.
All time is precious; but the time of our childhood and of our youth is more precious than any other portion of our existence. For those are the periods when we can acquire knowledge and develop our capacities. If we allow these morning hours of life to slip away, we shall never be able to recoup the loss. Just as money laid out at interest doubles and trebles itself in time, the precious hours of childhood and youth, if properly used, will produce incalculable advantages.
suicide n. the act of killing oneself deliberately自杀
deduct v. to take away ... from a total amount (从总量中)扣除
at one’s disposal available for use as one prefers由……自行支配
recoup v. to get back something that you have spent or lost弥补
Zhao Ruirui, 1.97 meters tall, was the tallest player in the Women's Volleyball World Cup in 2003. Thanks to her baby face, she was also the most beautiful player.
But, more importantly, she was also the Cup's best player! She attacked quickly, scored lots of points, and was a great striker(扣球手).
“She is young, but she's already an excellent attacker,” says Chen Zhonghe, the team's head coach.
Being tall sometimes makes Zhao's life difficult. The 25-year-old girl finds it hard to buy trousers long enough. And sometimes people think she's a boy.
Still, she would never want to be short. “It's a pity I can't grow any taller,” she says.“I hope to be even taller, so I would be a better player.”
Zhao works very hard to be good at volleyball. But when she's not training, she likes to listen to pop songs and she likes drawing.
She was very pleased to win the Cup. “I want to be the best volleyball player in the world,” she said. “I still have a long way to go.”
Imagine that the genome (基因组) is a book. The book consists of 23 chapters with thousands of stories made up of paragraphs, words and letters on different levels. There are one billion words in the book, as long as 800 Bibles; if I read the genome out to you at the rate of one word per second for eight hours a day, it would take me centuries; if I wrote out the human genome, one letter per millimeter, my text would be as long as the River Danube. This is a huge volume, a book of great length, but it all fits inside an extremely small cell nuclear(细胞核) that fits easily upon the head of a pin.
The idea of the genome as a book is not, strictly speaking, even a metaphor. It is true to a great extent. A book is a piece of digital information, written in one-directional form and defined by a code that translates a small alphabet of signs into a large dictionary of meanings through the order of their groupings. So is a genome. The only difference is that all English books read from left to right, while some parts of the genome read from left to right while some from right to left, but never both at the same time.
While English books are written in words of different lengthens using twenty-six letters, genomes are written entirely in words of three-letter length, using only four letters, and instead of being written on flat pages, they are written on long chains of DNA molecules (分子).
The genome is a very clever book, because in the right condition it can both photocopy itself and read itself.
millimeter n. 毫米
alphabet n. 字母表