首页
登录
职称英语
Fifty years from now the world’s population will be declining, with no end i
Fifty years from now the world’s population will be declining, with no end i
游客
2023-07-24
78
管理
问题
Fifty years from now the world’s population will be declining, with no end in【B1】______Unless people’s values change【B2】______several centuries from now there could be fewer people living in the entire world than live in the United States today. The big【B3】______of the past twenty years is that in not one country did fertility stop【B4】______when it reached the【B5】______rate--2.1 children per woman. In Italy, for example, the rate has fallen to 1.2. In Western Europe as a whole and in Japan it is down to 1.5. The evidence now【B6】______that within fifty years or so world population will【B7】______at about eight billion before starting a【B8】______rapid decline.【B9】______.
many people still fear that it will keep "exploding" until there are too many people for the earth to sup- port. But【B10】______World population was growing by two percent a year in the 1960s; the rate is now down to one percent a year, and【B11】______This view is coming to be widely accepted among population experts, even as the public continues to focus on the threat of uncontrolled population growth. [br] 【B5】
选项
答案
replacement
解析
名词,这句话的意思是出牛率达到某一水平后继续下降就会出现问题,这肯定是保持人口基数的水平,即replacement rate。
转载请注明原文地址:https://tihaiku.com/zcyy/2865306.html
相关试题推荐
__________(据估计到2010年),thepopulationoftheworldwillhavereached7billion.
Thegrowthofpopulationduringthepastfewcenturiesisnoproofthatpopu
Thegrowthofpopulationduringthepastfewcenturiesisnoproofthatpopu
Thegrowthofpopulationduringthepastfewcenturiesisnoproofthatpopu
It’shotnowinAfghanistan,where35%ofthepopulationisunder-fed.Buts
It’shotnowinAfghanistan,where35%ofthepopulationisunder-fed.Buts
Fiftyyearsfromnowtheworld’spopulationwillbedeclining,withnoendi
Fiftyyearsfromnowtheworld’spopulationwillbedeclining,withnoendi
Fiftyyearsfromnowtheworld’spopulationwillbedeclining,withnoendi
Fiftyyearsfromnowtheworld’spopulationwillbedeclining,withnoendi
随机试题
Marriageisbiglately;actuallyit’sunmarriagethatseemstobecapturing
EnglishasaGlobalLanguageI.EnglishisagloballanguageIt’swidelyuse
Thereportshowedusvery(clear)______howtheplanecrashed.clearly根据原句的语法结构,不
[originaltext]M:IamsorelievedIjustfinishedthestoryIwasworkingonfo
Artcanbemadeofalmostanything,includingsubstances
[originaltext]M:Hey,Sue.IwaswonderingifyoucouldfillmeinonMonday’s
关节松动术Ⅱ级手法的特点为A.在关节活动的起始端、小范围、节律性地推动关节 B
某项目承包者预计该项目有0.5的概率获利200000美元,0.3的概率亏损500
衍生证券投资基金包括()。 Ⅰ.期货基金Ⅱ.期权基金Ⅲ.认股权证基金Ⅳ.货币
某水闸除险加固工程主要工程内容包括:加固老闸,扩建新闸,开挖引河等。新闸设计流量
最新回复
(
0
)