四、翻译(英译汉)
　　第51题 In October 1838, I happened to read for amusement Malthus on Population, and being well prepared to appreciate the struggle for existence which everywhere goes on, from long continued observation of the habits of animals and plants, it at once struck me that, under these circumstances, favorable variations would tend to be preserved, and unfavourable ones to be destroyed.
　　答案：1838年10月，我随便读了《马尔萨散人口论》，很欣赏书的到处都有的生存竞争，经过对动物和植物生存习性的长期观察，我忽然想到这种环境下，有利于生存的变化被保留了，而不利于生存变化被消除了。
　　五、写作
　　第52题 Directions: You want to invite some friends to a party. Write an invitation letter to them individually:
　　假设你是李华，近国内一家英文报纸正在讨论北京动物园是否应迁出市区。以下是你所在班级讨论的情况。请你给该报写一封信，反映讨论结果。
　　赞成迁出：①.游客多，交通堵塞②.郊区环境好
　　反对迁出：①.建于1906年，中外闻名 ②.搬迁易造成动物死亡注意：
　　1).词数100字左右，信的开头已为你写好。2).可根据内容要点适当增加细节，以使行文连贯。3).词汇： 郊区-suburb
　　答案：June 3 ,2005
　　Dear Editor ,
　　Recently, our class have had a heated discussion about whether the Beijing Zoo should be moved out of the city . Some of my classmates are in favor of the move .They say large crowds of tourists to the zoo will result in traffic jams .They also say that once moved, animals will have more space and better living conditions in the suburbs. However, other students are against the idea, saying that the Beijing Zoo, built in 1906, has a history of 100 years, and is well -known at home and abroad. So it should remain where it is. What’s more, moving may cause the death of some animals. To move or not, this is a big decision which has to be made by people in Beijing.
　　Yours truly,
　　Li Hua

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