托福Toefl作文模拟题附范文 第49篇:坚持不懈是否能让人变得更加强壮

作者词汇基础很好，也能较灵活使用学术词汇，望继续努力；作者句法知识掌握的错误，可适当增加从句的使用；文章层次较为清晰。

Nowadays, there is a argument that if the perseverance can make people stronger. Some people think that perseverance can make us concentrate on doing on thing and become steady and it will help us success , but some people don't agree . I think perseverance can make people stronger. John Maynard Keynes and William Harvey are the best examples to support my point . John Maynard Keynes proposes the Keynes’s General Theory which indicates that the economy is unable to maintain itself at full employment and it’s necessary for the government to step in and put under-utilized saving to work through government spending. Prior to the publication of Keynesian economics, mainstream economic thought was the economy existed in a state of general equilibrium. But Keynes overturned the mainstream economic and insisted on himself and it was perseverance that made Keynes become stronger and researched his idea firmly . Finally, his ideas proved to be true and became widely accepted after World War Ⅱ，and until the early 1970, Keynesian economics helped many Western industrialized countries enjoyed low stable unemployment and modest inflation , an era called the Golden Age of Capitalism. Not only in the field of economy, but also in the field of biology can i find the instance to support my idea . William Harvey , an English Physician who was the first to describe completely and in detail the systemic circulation and properties of blood being pumped to the body by the heart. But at that moment, the mainstream theory was the theory of Galen that there were two types of blood in human body which meant blood in left ventricle is different from that in right ventricle .Harvey went on to an analysis of the arteries ,showing how their pulsation depended upon the contraction of the left ventricle,while the contraction of the right ventricle propelled its change of blood into the pulmonary artery. According to this experiment , he got an idea about circulatory system , a fact leading him find out the truth about blood inside the artery and vein.It was perseverance that made Harvey stronger and gave he power to continued search his experiment so the wrong theory can be corrected .Consequentially Harvey’s result stopped the doctor using unscientific method to treat the disease and improve the education and push the physiology into mature. In conclusion, perseverance make people stronger.