题目内容：
根据下面资料，回答题 South America
Located mostly (most) in the southern haft of the earth, South America is a very 41 (interest) continent. The northern part of the continent is 42 (cover) by the AmazonRainforest, which is home to thousands of the plant and animal species. It is a very important force 43 (shape) the world' s weather and climate patterns. And it is also important for the 44 (develop) of the economy of South America. Products such as chocolate, rubber, coffee and manykinds of medicine are 45 (harvest) from the plants found in the rainforest. Even the liquidfrom the skin of some species of tree frogs are being used as 46 (experiment) medicines. Otherparts of South America are very 47 (differ). The Andes Mountains spread over the 48 (west) part of South America. The ranges, about 5,500 miles long, are a continuous barrier, withmany peaks rising beyond 20,000 49 (foot). Southern South America is an extremely 50 (wind) and cold place where many species of penguins (企鹅), seals and whales live.
第（41）题选
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