e year 1 A. D. The population crisis is acknowledged as a\rmajor obstacle in the path of worldwide efforts to raise levels of living, and even as a\rthreat to world peace.\rAs a country that sustains more than 22 percent of the world' s population with\ronly 7 percent of the world' s cultivated land, China considers it indispensable to\rcontrol the excessive population growth. Therefore, China launched the u one couple,\rone child“ family planning policy in the late 1970s, and succeeded in bringing down\rthe country? s birth rate from he then 30 per thousand to 16.5 per thousand in 1997.\rIV Assignments and Unit Sum-up lOmins\r1. Recite the appointed words, proverbs and sentences\r2. Translation and after-class reading\r3. Discuss the ways of preventing AIDS