“If kids know they’re working for a reward and can focus on a relatively __6__ task, they show the most creativity,” says Robert Eisenberger of the University of Delaware in Newark. “But it’s easy to __7__ creativity by giving rewards for poor performance or creating too much anticipation for rewards.

　　A teacher who continually draws attention to rewards or who hands our high grades for __8__ achievement ends uPwith uninspired students, Eisenberger holds. As an example of the latter point, he notes growing efforts at major universities to tighten grading standards and __9__ failing grades.

　　In early grades, the use of so-called token economies, in which students handle challenging problems and receive performance-based points to ward valued rewards, shows __10__ in raising efforts and creativity, the Delaware psychologist claims.

　　四級選詞填空模擬訓練選項：

　　[A] mental

　　[B] promise

　　[C] kill

　　[D] avoid

　　[E] hope

　　[F] especially

　　[G] aid

　　[H] ordinary

　　[I] approval

　　[J] monetary

　　[K] generally

　　[L] improve

　　[M] challenging

　　[N]restore

　　[O] excellent

　　四級選詞填空模擬訓練答案：

　　1. L

　　2. I

　　3. F

　　4. J

　　5. G

　　6. M

　　7. C

　　8. H

　　9. N

　　10. B