求老师解答：根据短文内容,回答下

根据短文内容,回答下列问题. Mostnewbabieswereborninthedevelopingcountries.ThesecountriesarefoundinAfrica,SouthAmerica

andpartsofAsia.InthedevelopedcountriesofEuropeandNorthAmerica,thepopulationisgrowingvery

slowly.Thisisbecausewomeninthesecountrieshave,onaverage(平均),onlyoneortwochildren.Inthe

developingcountries,manywomenhavefiveormorechildren.In1950,aboutonequarteroftheworld's

populationlivedinthedevelopedcountries.By2050,thesecountrieswillbehometoonlyaboutonetenthofthe

world'speople.

Inthedevelopingcountries,morethanonebillionpeoplearestilllivingbelowthepoverty(贫困)line.These

peopledonothaveenoughfoodtoeatandtheyliveinpoorhousingconditions.Childrengetlittletimeatschool

andsuffer(遭受痛苦)frommanykindsofdiseases.

Atthebeginningofthe21stcentury,theworld'spopulationwasaroundsixbillion.TheU.N.hassaidthatthe

world'spopulationwillleveloff(平稳下降)at12.5billionbytheyear2100.Othergroupsthinktheworld's

populationwillcontinuetogrow,reaching14billionbeforeitbecomesstable(稳定的),orevenfalls.

1.Inwhatareasoftheworldcandevelopingcountriesbefound?

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2.In1950,whatpercentoftheworld'spopulationlivedindevelopingcountries?

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3.Howtodescribethepeoplewhoarelivingbelowthepovertyline?

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4.Therewillbetwelveandahalfbillionpeopleontheearthin2100,won'tthere?

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5.将文中画线部分翻译成汉语.

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