8．The number of young people in Africa is growing．So is the number of older people in Asia．The share of the elderly-those aged sixty-five plus in total population-as well as relative to the working age population is steadily increasing across Asia．
Japan has the world's oldest population.30% of Japanese are older adults．In recent weeks，Japanese political leaders have been asked how they plan to care for the growing number of older adults．By 2030，the number of older adults in Singapore will rise 200% from current levels．This year，the government in Singapore released a song dealing with a population issue..It urges young people to produce more children to help end a drop in fertility．The song is fun，but the problem is serious．The government is offering to pay up to three thousand two hundred fifty dollars for each of the first two children．It will pay almost five thousand dollars for the third and fourth children．In Thailand，the population older than 65rose to just over 7% in 2010from 3.6% in 1975．Thailand's family planning efforts have led to much-smaller families．In the 1960s，mothers had an average of 5to 6children．Now，that number has fallen to 1.5．That is well below the number of births needed to keep the population count unchanged．
Steep population aging means an increased demand for income security，health and long-term care，which creates huge socio-economic and cultural challenges that will need to be addressed with a strong political and appropriate social policy．Other changes include reforming，social security systems in developed countries．Another is creating social safety systems in developing nations where traditional family support systems are disappearing．The most cost-effective and humane thing a society can do for its older citizens is to invest in their health so they can remain active．
47．What is the main point the author makes in the text？B
A．The population growth in Asia．
B．The population aging in Asia．
C．Population and economy in Asia．
D．Family planning policies in Asia．
48．The underlined word in the second paragraph meansA．
A．birthrate
B．economy
C．benefit
D．wealth
49．If a Singaporean couple are raising four children of their own，how many dollars will they receive from the government？C
A.6，500．
B.8，250．
C.11，500．
D.16，500．
50．The author implies in the text thatB．
A．economic productivity is falling in Asian
B．population aging can create some problems
C．Asia should learn from Africa in the population policy
D．governments should spend much money on young citizens．
分析 本文主要以日本和新加坡為例講述了亞洲的老齡化問題，以及老齡化人口的急劇增加可能引發(fā)的各種社會問題．
解答 47-50 BACB
47．B 主旨大意題 從第一段The number of young people in Africa is growing．So is the number of older people in Asia．及全文講解內(nèi)容可知，本文講述的是亞洲人口老齡化的問題，故答案為B
48．A 詞義猜測題 根據(jù)It urges young people to produce more children to help end a drop in fertility．可知，他們催促年輕人多生孩子來結(jié)束出生率的下降，可知fertility與birthrate意思相近，故答案為A
49．C 數(shù)字計算題 根據(jù)The government is offering to pay up to three thousand two hundred fifty dollars for each of the first two children．It will pay almost five thousand dollars for the third and fourth children．可知，前兩個孩子每人3250美元，第三、四個孩子總共接近5000美元，可以計算出四個孩子應(yīng)該領(lǐng)到3250*2+5000=11500，故答案為C
50．B 推理判斷題 根據(jù)最后一段Steep population aging means an increased demand for income security，health and long-term care，可知，急劇老齡化的人口會增加健康醫(yī)療收入等的需求，處理不當(dāng)會增加社會問題，故答案為B
點評 做閱讀時經(jīng)常犯錯的主要原因是，僅憑讀過文章后殘留在腦海中的一絲印象來勾選答案，這樣便很容易掉入出題人故意設(shè)布下的題目陷阱．所謂閱讀理解，對于題目的理解一定要忠實于原文，因此，每一道題都應(yīng)該與原文作全面的對比與核查，再得出答案．也就是說，閱讀理解的每一道題目，在原文都應(yīng)該有明確的出處，我們把這一出處叫做原文相關(guān)句，（1）排除與原文相關(guān)句主題不一致的選項（2）排除與原文相關(guān)句態(tài)度相反的選項 （3）排除用于過于極端或負(fù)面的選項（4）注意結(jié)合文章主旨和主題去排除．
