Unit 3　Under the sea

　　(60分钟81分)

　　Part A

　　一、阅读理解(共8小题;每小题2分,满分16分)

　　A

　　Where should an adventurous tourist go?After you’ve done sightseeing in London,shopping in New York,tasting the local food in Paris and dancing to your heart’s content at the Brazilian carnival,where else can you go?What exotic(异国的) tourist destination awaits you?

　　Well,Antarctica sounds like the holiday of a lifetime!It’s considered the last great wilderness on Earth.Just a few scientists in research stations share the icy landscape with penguins and other animals which can cope with the low temperatures.

　　Tourism began in Antarctica in the 1950s and it’s still small scale.About 37,000 tourists are expected there this season,but many won’t even leave the boat.

　　The BBC’s Juliet Rix visited the frozen continent and asked herself if she should be there at all,causing potential problems to such a sensitive environment.Her tour guide admitted that all visitors leave a footprint and they all go to the same places,the accessible coastline,which is also where the penguins and seals go to breed.

　　But some people believe that if carefully controlled,tourism can be good for Antarctica.It has no native population and it needs advocates.Visitors to the icy continent might be ready to support and even to fund its preservation.And they’re likely to engage in the discussion about global warming,which has led to the melting of glaciers.

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