The world’s population has reached 7 billion（十亿）according to the United Nations（联合国）by 2011. It es just 12 years since the total reached 6 billion - with official estimates saying the population will top 8 billion in 2025 and 10 billion before the end of the century.
And it is most likely that the 10-billionth baby will be born in the Asia-Pacific region - where the population growth rate is higher than anywhere else in the world.
Of the 2.3 billion people, the United Nations believes will be added by 2050, more than 1 billion will live in sub-Saharan Africa. The Indian subcontinent（次大陆）will add some 630 million people.
With more people to feed, more houses & medical care to provide, experts say the world’s resources（资源）will face more strain than before.
【小题1】According to the picture, the population of the world reached 6 billion in .
A. 1987 B. 1999 C. 2011
【小题2】We know that more than 1 billion will live in by 2050.
A. sub-Saharan Africa
B. Indian subcontinent
C. the United States
【小题3】According to the picture, will have the largest population in 2050.
A. China B. India C. Nigeria
【小题4】The underlined word “strain” in the last paragraph（段落）means “ ”.
A. 破坏 B. 关闭 C. 压力
【小题5】The population of the world grows according to the picture.
A. slower and slower
B. faster and faster
C. smaller and smallerB
网友回答
(答案→)B
解析：本文主要讲述的是世界人口的增长。
【小题1】细节理解题。根据文章第一段第二句可知。
【小题2】细节理解题。根据文章第三段 more than 1 billion will live in sub-Saharan Africa可知。
【小题3】细节理解题。根据图表可知。
【小题4】细节理解题。Strain 指张力 ，压力。
【小题5】细节理解题。根据图表可知人口变得越来越多。