Topic 2 The population in developing countries is growing faster.
Section C
一、Aims and demands：
1、New words：social, supply, natural, worse, so far government, take measures to do sth, thanks to sb/ sth, par agraph, opportunity, newborn, percent, offer.
2、Key sentences ：
⑴… and about one fifth of the people in the world live in China.
⑵…our government has taken many measures to control the population.
⑶Thanks to the policy, China is developing quickly and people’s living conditions are improving rapidly.
3、重点及难点：
强化练习现在完成时的用法和高位数的表达法。
