If you dig down deep enough into the earth, you will find rock. Over the top of most of this rock there is a layer of soil, like icing on a cake. You may call it earth or dirt, but the real name is soil.
The top layer of this soil is not very deep, but

Scientists are always trying out new ways of growing food, but even they can only guess what food will be like in the future. You can perhaps get a better focus on what lies ahead from the four ideas below. Read them and see if you can guess what the future hamburger will taste like.

Japan is made up of a chain of islands that lie off the coast of Asia. People came to live in Japan from the nearby countries of China and Korea. From these older countries, the Japanese borrowed ideas, inventions, and habits.
For many years, the Japan

America's space shuttle was a delta winged craft that could be launched like a rocket．Two recoverable solid fuel rockets boosted it into space．The shuttle then could move under its own power of three built-in engines．To avoid the heat caused by friction upon reentering the Earth's atmos

A．The triathlon is a demanding sport．Many say that it is a real test of an athlete's body and mind．It is difficult because it is three sports in one．It includes swimming for 2．4 miles（3．84 kilometers），bicycling for 112 miles（180 kilometers），and running for 26．2 miles（41．9 kilometers）．It takes a lot of strength and willpower to compete．Th

A linguist，an expert on languages，is always listening，never off-duty．I invited a group of friends round to my house，telling them that I was going to record their speech．I said I was interested in their regional accents（地方口音），and that it would take only a few minutes．Thus，one evening，three people came to my house and were shown into my fr

The Bell family was originally from Scotland where Alexander was born in 1847．Both his grandfather and father trained Alex in public speaking and teaching the deaf to speak．His mother was deaf so he had a deep desire to help those who couldn't hear．He studied anatomy（解剖）and physiology（生理学）which gave him a background of understanding as t

How to Interview People
Interviewing is one of those skills that you can only get better at．You will never again feel so ill at ease as when you try it for the first time，you'll probably never feel entirely comfortable trying to get from another person answers that h

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    LONDON（Reuters）—Organic fruit，delivered right to the doorstep．That is what Gabriel Gold prefers，and he is willing to pay for it．If this is not possible，the 26-year-old computer technician will spend the extra money at the supermarket to buy organic foo

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1．Basis of Modern English race：the Anglo-Saxons．
现代英国种族的基础：盎格鲁—萨克逊时代。
In the mid-5th century a new wave of invaders，Jutes，Saxons，and Angles came to Britain．They were the three Teutonic tri

Only a few Europeans lived in North America in the 1500s．Most of them settled along the northeast coast．In 1587，a small group of one hundred people decided to go south．They moved to the small island of Roanoke．That area later became part of the state of North Carolina．

On my 69th birthday，my dear wife gave me one week in a French language school．Six years ago we bought a holiday home in the southwest of France．My wife speaks the language fluently，having read French at university，but I often complained about the problem I had understanding our French n

When we want to look our best，we dress up in our nicest clothes．We are using the clothes to decorate ourselves．
The Nubas in the African country of Sudan do not dress up in fancy clothes．They use another kind of decoration．They have scars①which form de

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Treasure hunts（寻宝）have excited people's imagination for hundreds of years both in real life and in books such as Robert Louis Stevenson's Treasure Island．Kit Williams，a modern writer，had the idea of combining the real ex