UNITED NATIONS, June 17 -- The world's population is expected to increase by 2 billion in the next 30 years, from 7.7 billion currently to 9.7 billion in 2050, according to a United Nations report released here on Monday.
The World Population Prospects 2019: Highlights, published by the Population Division of the UN Department of Economic and Social Affairs, said that the world's population could reach its peak around 2100, at a level of nearly 11 billion.
The report also confirmed that the world's population is growing older due to increasing life expectancy and falling fertility levels.
The age group of 65 and over grows the fastest and by 2050, one in six people in the world will be over age 65, up from one in 11 in 2019.
The number of countries experiencing a reduction in population size is growing.
Populations are projected to decrease by 1 percent or more in 55 countries or areas, of which 26 may see a reduction of at least 10 percent.
China's population is projected to decrease by 31.4 million, around 2.2 percent, between 2019 and 2050, the report said.
The report said that India is likely to overtake China as the world's most populous country around 2027.
牛津实用英语语法 34 使用各比较等级的句子结构
牛津实用英语语法 45 某些副词之后的倒装
牛津实用英语语法 29 由ly构成的副词
牛津实用英语语法 41 程度副词
牛津实用英语语法 50 some,any,no和none(形容词和代词)
牛津实用英语语法 质量形容词的次序
牛津实用英语语法 57 who,whom,which和what作介词宾语
牛津实用英语语法 25 many和much的用法(作形容词和代词)
牛津实用英语语法 39 各种副词及副词短语在同一句中的位置
牛津实用英语语法 33 much,more,most
牛津实用英语语法 31 比较级与最高级
牛津实用英语语法 48 all/both/each+of和其他可以替代的结构
牛津实用英语语法 47 both
牛津实用英语语法 49 neither,either
牛津实用英语语法 20形容词的比较等级
牛津实用英语语法 37 时间副词
牛津实用英语语法 40 句子副词
牛津实用英语语法 36 地点副词
牛津实用英语语法 形容词作定语和表语时的位置
牛津实用英语语法 名词的复数形式
牛津实用英语语法 69 neither/either,someone/everyone/no o
牛津实用英语语法 38 频度副词
牛津实用英语语法 43 quite
牛津实用英语语法 名词的所有格形式
牛津实用英语语法 不可数名词
牛津实用英语语法 this/these,that/those(指示形容词和指示
牛津实用英语语法 52 else位于someone/anybody/nothing等之后
牛津实用英语语法 44 hardly,scarcely,barely
牛津实用英语语法 72限定性关系从句
牛津实用英语语法 26形容词+动词不定式
不限 |
英语教案 |
英语课件 |
英语试题 |
不限 |
不限 |
上册 |
下册 |
不限 |