【正文】
? 7. So it is . ? ? out ? the population 增長更快 的確如此 “ so + 主語 +be動詞 \ 情態(tài)動詞 \ 助動詞,表示的確如此。 執(zhí)行 控制人口數(shù)量 A: What a large population ! The world … billion. … 80 million every year. B: Which country …? A: China … with…, and India …with …. B: … the .? A: 296 million. B: It shows … developing countries … developed countries. A: … grow faster … B: So it is. The population problem … developing countries A: China … carry out … control the population. 1,000,000,000 one billion one point three four 100 one hundred 1,000 one thousand 1,000,000 one million 十億 點 five hundred and fiftythree point seven 768 seven hundred and sixtyeight 6 004 001 six million, four thousand and one 7 198 764 502 seven billion, one hundred and niyeight million, seven hundred and sixtyfour thousand, five hundred and two one point three four 100 o