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UnitFourPeople theenvironment 1populationproblems text Whatdothegraphsshow Theyshowtheworldpopulationgrowth 2 Thepopulationdoubledfrom1960to1999 didn tit Yes itdid 3 Whatwastheworldpopulationin2005 Itwas6 4billion LookatthegraphsandanswerthequestionsonP102 1 Howmanycontinentsarementionedinthetext Thereare3 2 Whatarethey TheyareEurope AfricaandAsia Step2 3 WhyisthebirthrateverylowinEurope Becausemanyyoungpeoplehaveonlyonechildornoneatall 4 HowlongdomenandwomeninEuropeliveonaverage Onaverage menlivetobe76 andwomen 78 1 ThepopulationinAfricaisdoublingevery20years 2 Manyfamilieshavesmallnumbersofchildren 3 Thepopulationwillincrease10timesinthenext8yearsinKenya 4 Itisnotnecessaryforgovernmentstoconsiderwaystocontrolthepopulationgrowth Step3 Listentothe3rdparagraphanddotheTrueandFalse F 24 F large F 80 F WhatpopulationproblemisAsiafacedwith Howmuchofthepopulationwillliveincitieswithinthenext25years WhatproblemshouldthegovernmentinAsiapayattentionto Step4 Listentothe4thparagraphandthenanswerthequestions Asiaisfacedwithovercrowdinginmanycities Morethan65percentwillliveincities GovernmentsinAsiahavetopayattentiontotheproblemofovercrowdingincities birthrate life growth birthrate medical service overcrowding 65 cities by为止 完成时 reachrise to数量 befacedwithaEuropeancountry inEuropenot atallonaveragesolvetheagingproblem thesolutionto problem continuetodo doinglargenumbersof alargenumberofincrease增加decrease减少overcrowdingincities BylastFriday GroupOne theirprojectonhousingproblems hadfinished willhavefinished Ifyou tofindmoreinformation youcangototheschoollibrary want willwant Hewantstoknowhowfasttheworldpopulation grew isgrowing Bytheendofthelastcentury someofthewildanimals forever disappeared haddisappeared hadfinished want isgrowing haddisappeared Wearenowf withnewproblems Oneofthebiggestproblemistherapidg ofthepopulation InEurope thepopulationisgettingo becausethebirthrateisl andpeoplelivel InAfrica thepopulationisd every24years TheprobleminAsiaisbothpopulationgrowthando incities Therefore governmentsshouldtakemeasurestocontrolthepopulationgrowth solvetheproblemofovercrowdingaswellastheproblemofthea aced rowth lder ow onger oubling vercrowding ged Assignment Oralwork Toreadthetextafterthetapeandrecitethephrasesinthetext Writtenwork 1 Finishtheexercisesaboutthep
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