4．
根据所给的音标、语境或单词的提示，完成短文。 China has the largest population in the world. The large population has caused many /′səʊʃl/ problems for the whole nation. For example, there is (little) living space for each family. And it is not easy find jobs. It’s also hard for China to /sə′plaɪ/ energy and water to satisfy people’s daily needs. Most cities are more crowded before, and the traffic is much heavier. (nature) environments are becoming /wɜ:s/. China has taken many measures to control the population. And the measures have worked well in it. , our government still faces a serious population problem. So we have a long way to go.
