【正文】
about the topics a. Why does China carry out the onechild policy? b. What are the population problems? Homework population (large \ small) 集合名詞 某地整體人口是多少 (作單數(shù) ) 強(qiáng)調(diào)具體成員 , 某地的部分人口 (作復(fù)數(shù)) ()The population of this city is nearly 300 000. 這個(gè)城市的人口將近三十萬。 () 80% of the population in China are farmers. 中國(guó)百分之八十的人口是農(nóng)民 。Unit 1 The Changing World Topic 2 Which country has the largest population? one hundred and fifty yuan two thousand and eight Olympic Games millions of stars since(自從) 650 million years ago about one billion (1,000,000,000 ) years old two point two six () meters tall 1,000,000,000 one billion one point three four 100 one hundred 1,000