| Since the middle of the last century, the wave of investigations on critical thinking has begun to be popular in west countries delegated by USA. The concept of critical thinking went into china and was studied in 1980's. Critical thinking, which plays an important role in the development of the ability of innovation extraordinary, has attached other subjects' attention.The studies on critical thinking are on the stage of infantile and have not come into an integrated theoretic system now. On the basis of former studies, I try to research and cast lights on critical thinking and cultivation of its ability on a new point of view.Be characterized by and be intrinsic driven by critical spirit, critical thinking is regarded as a synthetic thinking which is used to evaluate text comprehensively and equitably in this thesis. I expatiate on this definition from object, structure and substance of critical thinking. The objective of critical thinking is text. Critical thinking is composed of two dimensionalities: the critical spirit and the skill of critical thinking. Substance of critical thinking is evaluation and comprehension.The key content of investigation and cultivation of critical thinking is the ability of critical thinking. Especially, the ability to put forward question is the central ability of critical thinking. The thesis will put emphases on explaining the generation, types and the evaluation of critical questions.The last part of the thesis will discuss how to cultivate the ability of critical thinking, which attracts most people's attention. An idea on how to set up curriculums about critical thinking in university will be conceived. In curriculums, Cultivation of ability of critical thinking should be the core, and the way of case teaching should be the primary method of teaching. |