题目内容：

请认真阅读下列短文，并根据所读内容在文章后表格中的空格里填入一个最恰当的单词。

How Hard Is It to Become an Expert at Something

Expertise is what separates the amateur from the true master in almost any field, from medicine to science, sports or artistic performance. What exactly is expertise? Is it about how much you know? Is it about being able to perform an action well? “Expertise is generally defined as peak, or exceptionally high levels of performance on a particular task or within a given field,” explained researcher Lyle E. Bourne, Jr. of the University of Colorado Boulder and his colleagues. “One who achieves this status is called an expert, or some related terms, such as master, or genius. These terms are meant to label someone whose performance is at the top of the game?'

Some of the critical components of expertise are knowledge, skill, and achievement. People who become experts tend to acquire a body of knowledge that makes them one of the most informed individuals in their field. They also possess the skills that they need to determine when and how to use their knowledge. Such skills are often learned, but they can also be influenced by natural talent and ability. Finally, people who possess expertise also tend to excel in their field and achieve far above and beyond what the average person does.

Can anyone become an expert? Anders Ericsson of the University of Florida, a world-famous expert on peak performance, believes that what separates the amateur from the expert is what is referred to as deliberate practice. Ordinary practice can help people become skilled at a task, but gaining true expertise involves practicing in a way that pushes the boundaries of current skill levels and knowledge. Such practice is highly concentrated and involves working on things that are outside of your current skill level, setting goals, and receiving training and instruction from a qualified teacher.

So what does it really take to gain true expertise? Firstly, it takes work. People who become experts in any field spend a tremendous amount of time, energy, and hard work on learning. Secondly, it takes deliberate practice. The more you practice, the better you will perform in your area of interest. Finally, it takes continuous challenges. Practice is essential for developing a skill, but becoming an expert requires constantly challenging yourself to do better, learn more, and acquire new knowledge and skills. Simply practising the same skills over and over again will make you better in those areas, but it won't lead to true expertise. Even if you become very good at a skill within a particular field, this doesn't mean that even greater expertise is out of reach. More learning, more knowledge, and better performance arc still possible with further challenges and practice.

Researchers continue to debate exactly what it takes to become an expert, There is no doubt, however, that it requires time, practice, and commitment.

How Hard Is It to Become an Expert at Something
The 1.of expertise and an expert	Expertise refers to outstanding skills or knowledge in a particular field. An expert is one with expertise.
Critical components of expertise	•The 2.of a body of special knowledge enables experts to be among the most informed in their field. •The possession of the skills acquired by nurture and influenced by 3.helps experts determine when and how to apply their knowledge. •Their much greater achievement in their fields is attributed to expertise.
A professional4.on gaining true expertise	According to Anders Ericsson, the 5. to becoming an expert is deliberate and highly concentrated practice, featuring self-challenges. goals, training and instruction. Thus, you are able to extend your current skills and knowledge beyond your  6.
Tips on acquiring true expertise	•Becoming an expert involves 7. masses of time T energy and effort in learning. • Deliberate practice counts. •8.practice at the same skills isn't enough to make a true expert. Instead, you have 9.to .yourself to learn smiting new and practise more. •Even if you excel in your field, you still have the  10. for improvement.