Lesson50课件
日期：2010-04-15 04:27
000Multiply…by…TheincreasingpopulationallovertheworldTheworld’spopulation1Thegreatest______maybethe______________today22000yearsago，theworld’spopulationwasabout________billionTheIncreasingofPopulation5In1970，therewereonly________peopleontheearth3Fourhundredyearsago，050，lifeismuchhappierThefamilyplanningpolicyisunshakeable"PopulationTrendinChinaNewbabiesbirthrate25915，Lesson50TheWorld’sPopulationDiscussionChinahasthelargestpopulationintheworldDoyouthinkit’sgoodorbad?Whydoyouthinkso?1Chinaspopulationgrowthratehasslowedinthepastfiveyears，540370，the__________wasmorethan36billion6In1990，000135，the___________wasover500million4______________of20thcentury，althoughitspopulationisstillincreasingPopulationTrendinChina2FamilyplanninginChinastartedintheearly1970sItenjoystheunderstandingandsupportofthepopulationandhasgotgoodresultsPopulationTrendinChina3Chinawouldhave260millionmorethanthepresentpopulationifthefamilyplanningprogramhadnotbeenusedAsaresult，itrea，
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