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所以使用形容詞“convenient”。表格中check與原文語義一致。根據(jù)第二段第一句“Once I look up something on the Internet,I don’t need to keep all the details...”可知動詞短語“keep...in mind記住”,在表格中放在介詞without的后面,要使用動名詞keeping的形式。根據(jù)最后一段的最后一句“As a result it’s likely to see a rise...growth over the longer term.”可知,移民可能會帶來勞動力人口的增加和經(jīng)濟的迅速增長,從而彌補青壯年勞動力的缺乏。根據(jù)第四段中對俄羅斯人的不良飲食習(xí)慣和酗酒的描述可以看出,他們的生活方式需要改變。根據(jù)第二段最后一句中的“which might cause catastrophic global shortages of work force within a few decades”可知,在發(fā)展中國家,出生率下降的影響是災(zāi)難性的,但不會立即顯現(xiàn)出來,而要等到幾十年之后,故答案為immediate。]Population ChangeWhy is the world’s population growing?The answer is not what you might reason for the explosion is not that people have been reproducing like rabbits,but that people have stopped dropping dead like 1900,people died at the average age of 2000 the average age was while increasing health was a typical feature of the 20th century,declining birth rate could be a defining one of the 21st.Statistics show that the average number of births per woman has fallen from in the early 1960s to ,around 50% of the world’s population live in regions where the figure is now below the replacement level( births per woman)and almost all developed nations are experiencing subreplacement birth might think that developing nations would make up the loss(especially since 80% of the world’s people now live in such nations),but you’d be birth rate is a major problem in many developing regions too,which might cause catastrophic global shortages of work force within a few decades.A great decline in young work force is likely to occur in China,for does it imply?First,China needs to undergo rapid economic development before a population decline hits the ,if other factors such as technology remain constant,economic growth and material expectations will fall well below recent standards and this could invite trouble.Russia is another country with population problems that could break its economic 1992 the number of people dying has been bigger than that of those being born by a massive 50%.Indeed official figures suggest the country has shrunk by 5% since 1993 and people in Russia live a shorter life now than those in is this occurring?Nobody is quite sure,but poor diet and above all longtime alcoholism have much to do with current trends don’t bend,Russia’s population will be about the size of Yemen’s by the year 2050.In the north of India,the population is booming due to high birth rates,but in the south,where most economic development is taking place,birth rate is falling a further twist,birth rate is highest in poorly educated rural areas and lowest in highly educated urban total,25% of India’s workingage population has no 2030,a sixth of the country’s potential work force could be totally uneducated.One solution is obviously to import foreign workers via for the USA,it is almost unique among developed nations in having a population that is expected to grow by 20% from 2010—,the USA