5．China has announced it's abolishing（废除） its one-child policy．What difference has it made，statistically speaking？
400million births prevented
The one-child policy，officially in place since 1979，has prevented 400million births．Parents have faced fines and other punishments for having more children．
The majority of the decrease in China's fertility rate happened in the 1970s．It dropped from 5.8children per woman in 1970to 2.7in 1978．Despite the one-child policy the rate had only fallen to 1.7by 2013．
21：28-baby deaths rate
Since the one-child policy was introduced，baby girls have become more likely to die than boys．
In the 1970s，according to the United Nations，60males per 1，000live births died under the age of one．For girls the figure was 53．In the 1980s，after the one-child policy became official，the rate for both was 36．By the 1990s，26males per 1，000live births died before the age of one-and 33girls．The 2000s saw 21boys per 1，000live births dying and 28girls．
1.16boys born for every girl
Sexually selective abortions have been considered as a major cause of China's unusual imbalance．
Gietel-Basten，associate professor in social policy at Oxford University，says the births of many girls are not registered if parents have broken the rule by having two children，adding officials often turn a blind eye．It's estimated there are now 33million more men than women in China．
4：2：1 families
With the aging of China's population and the continuation of the one-child policy，a"4：2：1"home is the description given to households in which there are four grandparent，cared for by two working age parents，who themselves have one child．
By 2050，it's predicted that a quarter of China's population will be 65or older．The predicted decline in the number of people of working age is thought to have persuaded the government to drop the one-child policy．
21．When was the baby deaths rate for both boys and girls equal？B
A．In the 1970s．
B．In the 1980s．
C．In the 1990s．
D．In the 2000s
22．What makes the one-child policy abolished according to the passage？D
A．The decline of birth rate．
B．The rise of baby deaths rate．
C．The change of family structure．
D．The decline of working age people．
23．The passage sums up the one child policy byA．
A．number
B．example
C．contrast
D．analysis．
分析 本文属于说明文阅读，作者通过这篇文章主要向我们描述了通过四组数字回看我国的独生子女政策．
解答 21．B 细节理解题．根据第二部分的第二段In the 1980s，after the one-child policy became official，the rate for both was 36可知男女孩死亡率平等是在20世纪八十年代．故选B．
22．D 细节理解题根据文章的最后一句The predicted decline in the number of people of working age is thought to have persuaded the government to drop the one-child policy．可知让政府废除独生子女政策的原因是The predicted decline in the number of people of working age．故选D．
23．A 推理判断题．从全文分析尤其是每段的小标题可知．文章的第一段的statistically speaking有暗示．本文是通过数据回看我国的独生子女政策的．故选A．
点评 考察学生的细节理解和推理判断能力，做细节理解题时一定要找到文章中的原句，和题干进行比较，再做出正确的选择．在做推理判断题不要以个人的主观想象代替文章的事实，要根据文章事实进行合乎逻辑的推理判断．
