四、【命题方向与写作提示】

　　这是一篇提纲式的议论文写作素材，探讨国计民生的社会热点话题：粮食价格上涨。写作时要注意避免逐句翻译，并适当增加细节以使行文连贯。

　　Hello, everyone,

　　Now I’ll tell you something about our research project The World Food

　　Crisis on behalf of our group. As you know, food shortages have hit many countries in the world and even caused social uest in some areas. But who is responsible for the current world food crisisFirst, annual world grains output has declined because of climate change. Then lots of farmland has been lost due to the rapid development of industry and urbanization. Besides, faced with the rising energy prices, people have turned to the production of biofuels, which has worsened the severe situation.

　　Then what should we do to deal with the problemOn one hand, we should focus on the environmental protection and improve the ecology. On the

　　other hand, strict measures should be taken to protect farmland. Of course, to

　　build a harmonious world the developed countries should take their responsibilities to help the poor ones experiencing food shortage.As for me, I will call on the people around me to live thriftily. And for the

　　moment, I think, we should study hard to develop science and help solve the food shortage in the future.