比如我们想表达：美国是世界第一大经济体，中国紧跟其后，成为世界第二大经济体。经济体就是：economy，说经济体还有一个好处就是，比如欧盟我们可以当作一个经济体。
　　America is the largest economy in the world, followed closely by China.
　　描述如今全球经济现状，就是下滑低迷状态，距离复苏还有好几年时间。The world economy is in recession and it will last some years before it can recover.
　　中国经济的快速发展，为社会积累大量财富，也为国家赚取大量的外汇(foreign exchange)，这些都非常有利于一个国家的发展，和人民生活水平的提高。
　　The vigorous economy in China helps to accumulate a great deal of social fortune, and earns large amount of foreign exchange, which will facilitate the rise of people’s living standards and the development of a whole country. (which在此处引导非限制性定语从句，代前面整个句子，很多学生定语从句中限制性从句用的很熟，但是对于非限制性的却很陌生)
　　中国多年年保持GDP8%的增速，最近几个季度脚步放缓，增速为7.5%左右，这些都显示，中国已经从原来追求发展速度，转换到现在鼓励健康稳步发展。(本句可以再用which引导非限制性定语从句)
　　China has accelerated its development at 8% per year, in recent quarters, however, the pace has been slowed down, which indicates China has shifted it top priority from pursuing development speed to sound growth.
　　当经济发展欣欣向荣的时候，就业机会就增多，反之就减少，大量失业人口逐年累计就会引发社会不安定因素，甚至引发骚乱。
　　If the economy develops soundly, more job opportunities will be created; if not, unemployment rate will rise. And the unemployed population accumulated annually will trigger a chaos eventually.
　　GDP每下降一个点, 社会就失去800万个就业岗位. 这个后果是像中国这样人口大国难以承受的.
　　As the GDP decreased by 1 percentage, we will lose 8 million jobs, which cannot be easily afforded by a country like China with such a large population.
　　以上便是学生大作文关于经济可以常用的语句，熟记这些语句，经济类的大作文就不再难写。