联合国报告：2050年世界人口将达98亿，6年后印度人口将赶超中国
The United Nations said that the world population is expected to reach 8.6 billion in 2030, and to hit 9.8 billion by 2050.
The lower fertility rates are resulting in an ageing population. The number of people aged 60 or over is expected to more than double by 2050 and triple by 2100, from the current 962 million to 3.1 billion.
The population of India, which currently ranks as the second most populous country with 1.3 billion people, will surpass China’s 1.4 billion people by 2024, the report predicted. By 2050, the third most populous country will be Nigeria, which currently ranks seventh.
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1.The world population is expected to reach ___ billion in 2050.
A 6.8
B 8.9
C 8.6
D 9.8
解析：选D。细节理解题。根据第一段The United Nations said that the world population is expected to reach 8.6 billion in 2030, and to hit 9.8 billion by 2050.可知世界人口将在2050年达到98亿，故选D。
2.What’s the meaning of the underlined word “fertility”?
A 肥沃
B 丰收
C 生育率
D 土壤肥力
解析：选C。词义猜测题。根据下文可知the lower fertility rates意为“低生育率”，由此导致了人口老龄化，故选C。
3.What will the lower fertility rates lead to?
A Famine.
B Unemployment.
C Natural disaster.
D Ageing of population.
解析：选D。细节理解题。根据第二段第一句The lower fertility rates are resulting in an ageing population.可知低生育率正导致人口老龄化，故选D。
4. When will India rank as the most populous country?
A 2017.
B 2024.
C 2030.
D 2050.
解析：选B。细节理解题。根据第三段第一句The population of India, which currently ranks as the second most populous country with 1.3 billion people, will surpass China’s 1.4 billion people by 2024, the report predicted.可知该报告预测，到2024年，目前以13亿人口位居第二人口大国的印度将超越中国的14亿人口，故选B。
5.From the passage, which of the following is RIGHT?
A People will enjoy traveling in 2030.
B By 2050, the third most populous country will be Nigeria.
C Nigeria currently ranks as the second most populous country.
D The population of India will surpass South Africa’s 1.4 billion people by 2024.
解析：选B。细节理解题。根据全文可知，A项没提到；C项的主语应该是印度；D项不是南非，而是中国，故选B。