题目内容：

    In interviews, famous people often say that the key to becoming both happy and successful is to “do what you love.” But mastering a skill, even one that you deeply love, requires a huge amount of hard work.

Anyone who wants to master a skill must run through the ______ of practice, critical feedback, alteration, and improvement over and over. Some people seem able to concentrate on practicing an activity like this for years and ______ their gradual improvement. Yet others find it _____ to do this kind of focused, time-consuming work. Why?

The ______ may turn on the ability to enter into a state of “flow”, the feeling of being completely involved in what you are doing. Flow states can happen in the course of any activity, and they are most common when a task has well-defined goals and is at a(n) ______ skill level, and where the individual is able to ______ their performance to clear and immediate feedback.

Flow states turn the boring practice into an autotelic activity—that is, one that can be enjoyed for its own sake, rather than as a means to an end or for obtaining some ______ reward. Then how can we get into a flow state for an activity that we want to master, so that we enjoy both the ______ and the rewards?

Those who most ______ entered into flow states had an “autotelic personality”—a quality to seek out challenges and get into a state of flow. While those without such a personality see ______, autotelic individuals see opportunities to build skills. Autotelic individuals are receptive, open to new challenges and also persistent. Such people, with an ability to focus on tasks rather than ______, have a great advantage over others in developing their inborn abilities.

____, for those of us who aren’t necessarily blessed with an autotelic personality, there is evidence that flow states can be promoted by environmental factors. In particular, the learning framework ______ by Montessori schools seems to encourage flow states. In Montessori schools, learning comes through ______ rather than direct instruction and students are encouraged to develop individual interests. Competition is ______ and grading is de-emphasized, taking the focus off of external rewards.

While there isn’t (yet) a pill that can turn dull practice into an exciting activity for anyone, it is heartening that we seem, at least to some degree, to be able to push ourselves toward flow states.

1.A.cycle B.list C.circle D.series

2.A.lose interest in B.make up for C.take pleasure in D.make use of

3.A.meaningful B.frustrating C.amazing D.shameful

4.A.behaviour B.difference C.reaction D.procedure

5.A.appropriate B.elementary C.advanced D.difficult

6.A.compare B.assess C.apply D.adjust

7.A.considerable B.well-deserved C.material D.external

8.A.process B.pleasure C.compliment D.performance

9.A.reluctantly B.blindly C.readily D.casually

10.A.advantages B.difficulties C.details D.faults

11.A.rewards B.expectations C.complaints D.contributions

12.A.Unexpectedly B.Occasionally C.Traditionally D.Fortunately

13.A.declined B.criticized C.advocated D.considered

14.A.adaptation B.discovery C.harmony D.exposure

15.A.appreciated B.guaranteed C.reserved D.discouraged