根据下面材料，回答题。CaribbeanIslandWhatwouldyouseeifyoutookacruisetotheCaribbeanIsla

共享题干题根据下面材料，回答题。 Caribbean Island What would you see if you took a cruise to the Caribbean Islands? Palm trees and coconuts (椰子)? white beaches and clear, blue ocean? Colorful corals (珊瑚) and even more colorful fishes and birds? You bet. There are thousands of islands in the Caribbean Sea. They are famous for their warm,tropical climate and great natural beauty. The Caribbean Islands form a chain that separates the Caribbean Sea from the rest of the Atlantic Ocean.____46____ Many of the islands were formed by the eruption (爆发) of ancient volcanoes (火山). Others are low-lying coral islands that gradually rose from the ocean. The Caribbean Islands are known by several names.____47____ The explorer Christopher Columbus called the islands the Indies in 1492, because he thought he was near the coast of India. Later, Spain and France called the islands the Antilles. There are four large islands in the Caribbean Sea.____48____ These four islands are often called the Greater Antilles. Together, they account for about 90 percent of the land area of the Caribbean Islands. The rest of the Caribbean Islands are much smaller.____49____ You can see why pirates such as the famous Blackbeard sailed these waters. There are countless small islands to bury treasure or hide on. The weather of the Caribbean Sea is almost always warm and sunny. Sandy beaches line the coasts of many islands.____50____ Many tourists arrive on cruise ships.1.[不定向选择题]第49题__________A.But life on the Caribbean Islands is not always paradi B.The earliest name used by Europeans is the Indies, later changed to the West Indie C.They're like a long necklace that stretches between North and South America, D.They are Cuba, Puerto Rico, Jamaica, and HispaniolE.This is why millions of tourists visit the islands each yeaF.Some of these islands are no more than tiny slivers (小片) of exposed coraABCDEF确定 2.[不定向选择题]第46题__________A.But life on the Caribbean Islands is not always paradi B.The earliest name used by Europeans is the Indies, later changed to the West Indie C.They're like a long necklace that stretches between North and South America, D.They are Cuba, Puerto Rico, Jamaica, and HispaniolE.This is why millions of tourists visit the islands each yeaF.Some of these islands are no more than tiny slivers (小片) of exposed coraABCDEF确定

1.参考答案：F
参考解析：空白前讲：加勒比群岛中的其他岛屿小得多。后面讲：你可以看到为什么海盗在这一带海域航行，这里有无数小岛可以藏宝或者藏身。所以空白处应该是关于小岛屿的描述。所以F(有些岛屿比暴露的珊瑚礁碎片还要小)是正确答案。?
2.参考答案：C
参考解析：空白前讲：加勒比群岛形成了一个锁链，把加勒比海与大西洋的其他部分分开。答案有可能是C和D。因为它们的第一个词都是they，该词回指the Caribbean Islands。但是，the caribbean Islands只有古巴等四个国家组成不符合实际情况，因此C是正确的。?3.[不定向选择题]第50题__________A.But life on the Caribbean Islands is not always paradi B.The earliest name used by Europeans is the Indies, later changed to the West Indie C.They're like a long necklace that stretches between North and South America, D.They are Cuba, Puerto Rico, Jamaica, and HispaniolE.This is why millions of tourists visit the islands each yeaF.Some of these islands are no more than tiny slivers (小片) of exposed coraABCDEF确定

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