雅思英语

The Impact of Wilderness TourismAThe market for tourism in remote areas is booming as never before. Countries all across the world are actively promoting their ’wilderness’ regions—such as mount...

Advantages of public transportA new study conducted for the World Bank by Murdoch University’s Institute for Science and Technology Policy (ISTP) has demonstrated that public transport is more effic...

In the earliest stages of man’s development he hadno more need of money than animals have. He wascontent with very simple forms of shelter, made hisown rough tools and weapons and could providefood ...

1. Washing， brushing and varnishing fossils — all standard conservation treatments used by many fossil hunters and museum curators alike — vastly reduces the chances of recovering ancient DNA.2....

1. Washing， brushing and varnishing fossils — all standard conservation treatments used by many fossil hunters and museum curators alike — vastly reduces the chances of recovering ancient DNA.2....

Food agency takes on industry over junk labels Felicity Lawrence Thursday December 28， 2006 The Guardian1. Consumers are to be presented with two rival new year advertising campaigns as the Food Sta...

-★Sun’s fickle heart may leave us cold 25 January 2007 From New Scientist Print Edition. Stuart Clark1 There’s a dimmer switch inside the sun that causes its brightness to rise and fall on times...

-★How a Frenchman is reviving McDonald’s in EuropeA. When Denis Hennequin took over as the European boss of McDonald’s in January 2004， the world’s biggest restaurant chain was showing signs...

★new weapon to fight cancer1. British scientists are preparing to launch trials of a radical new way to fight cancer， which kills tumours by infecting them with viruses like the common cold.2. If ...

From The Economist print edition1 REFRIGERATORS are the epitome of clunky technology: solid, reliable and just a little bit dull. They have not changed much over the past century, but then they have n...