2020年考研英语一阅读理解翻译题目如下：
原文：
"By the year 2020, the world's population is projected to reach 7.9 billion, up from 7.1 billion in 2016. The majority of the growth will occur in the world's poorer countries, particularly in sub-Saharan Africa and South Asia. This population boom will have profound implications for the environment, the economy, and global security. Here are some of the key challenges and opportunities that will arise from this demographic shift."
翻译：
到2020年，全球人口预计将达到79亿，较2016年的71亿有所增长。这种增长主要发生在全球较贫穷的国家，特别是在撒哈拉以南的非洲和南亚地区。这一人口激增将对环境、经济和全球安全产生深远的影响。以下是这一人口结构变化将带来的关键挑战和机遇。
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