我国经济发展进入新常态。新常态的一个重要特征是经济发展正从高速增长转向中高速增长。2015中央一号文件开宗明义提出在新常态下必须破解的农业“四个难题”。文件还提出,破解这“四个难题”是今后三农工作的重大任务。科技部副部长张来武在2014年12月份举办的“第十届中国经济论坛”上发表主旨演讲提出“新常态下新结构”的发展思路。这需要在理论上突破,理论突破能带来发展方式的深刻变迁。他认为当前 China’s economic development has entered a new normal. An important feature of the new normal is that economic development is shifting from high-speed growth to medium-high-speed growth. In 2015, the first Central Document issued a clear definition of the four problems that must be solved under the new normal. The paper also said that cracking the “four problems” is a major task for the work of agriculture, rural areas and farmers in the future. Zhang Laiwu, Vice Minister of Science and Technology, delivered a keynote speech on “10th China Economic Forum” held in December 2014 and proposed the development idea of ​​“new structure under new normal conditions.” This needs to be theoretically broken, and theoretical breakthroughs can bring about profound changes in the mode of development. He thinks of the present