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2007-11-26

Who brought the Frenchmen's neckwear to Britain?

A．Tony Blair

B．Charles ll

C．Jim Callaghan

D．Andrew Turnbull

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参考答案

B

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1 When did British gentlemen begin to wear ties regularly?

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C．In 1660

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2 Where Have All the Frogs Gone?
     In the 1980s, scientists around the world began to notice something strange: Frogs were disappearing. More recent research has shown that many kinds of amphibians （两栖动物） are declining or have become extinct. They have been around for a long time - over 350 million years. Why are they dying out now?
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     All these reasons for the disappearance of amphibians are also good reasons for more general concern. The destruction of land, the pollution of the air and the water, the changes in our atmosphere, the spread of diseases - these factors affect human beings, too. Amphibians are especially sensitive to environmental change. Perhaps they are like the canary （金丝雀） bird that coal miners once used to take down into

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3 Amphibians lay their eggs

A．in any stream they can find,

B．in places without UV light,

C．only on san

D．only in the right conditions

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