外研版九上module11populationunit3languageinuse同步練習(xí)-wenkub.com
2024-11-11 22:28 本頁(yè)面
【正文】 One of the most important world problems is the growing population on the earth. The population of the world today is more than 6,500,000,000. That is a great number and we know it quite well. The important thing is not how large the population of the world is now, but is the speed of the growth. It’s about % every year. In order to give you some ideas of the birth rate, look at the second hand of your watch. Every second, four babies are born in the world. Another baby! Another baby! An other baby! Another b aby! You cannot speak quickly enough to keep up with the birth
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