Directions: Choose the best answer to complete each sentence.

1. The lecture on quantum physics was so ________ that half of the students fell asleep.
A. bored
B. boring
C. bore
D. boredom

2. Sarah was genuinely ________ to find out that she had been selected for the scholarship.
A. surprising
B. surprised
C. surprise
D. surprisingly

3. It is absolutely ________ to watch how fast the technology has developed in the last decade.
A. amazed
B. amazing
C. amaze
D. amazement

4. After a long and ________ flight across the Pacific, all the passengers wanted to do was rest.
A. exhausted
B. exhausting
C. exhaust
D. exhaustion

5. The instructions for assembling this furniture are highly ________; I have no idea where to start.
A. confused
B. confusing
C. confuse
D. confusion

6. He felt deeply ________ by his test results because he had studied day and night for a month.
A. disappointed
B. disappointing
C. disappoint
D. disappointment

7. The plot twist at the end of the thriller was quite ________. No one in the cinema expected it.
A. shocked
B. shocking
C. shock
D. shocks

8. The detectives are completely ________ by the strange clues left at the crime scene.
A. baffled
B. baffling
C. baffle
D. baffles

9. The documentary about the rescue dogs was very ________. Many viewers were brought to tears.
A. moved
B. moving
C. move
D. movement

10. I tripped and dropped my tray in the middle of the crowded cafeteria. It was so ________!
A. embarrassed
B. embarrassing
C. embarrass
D. embarrassment

11. The little boy stared at the street magician with a ________ expression on his face.
A. fascinated
B. fascinating
C. fascinate
D. fascination

12. The continuous rain over the past week has been quite ________ for everyone's mood.
A. depressed
B. depressing
C. depress
D. depression

13. Are you ________ in joining our weekend hiking club?
A. interesting
B. interested
C. interest
D. interestingly

14. A hot spring bath is incredibly ________ after a hard day of physical labor.
A. relaxed
B. relaxing
C. relax
D. relaxation

15. The lawyer presented a very ________ argument, and the jury quickly agreed with him.
A. convinced
B. convincing
C. convince
D. convincingly

(以下为进阶词汇题：考察后缀带来的主动与被动意义差异)

16. The young man was very ________ to the elderly lady, offering her his seat immediately.
A. respectable (值得尊敬的)
B. respectful (表示尊敬的)
C. respected (受人尊敬的)
D. respective (各自的)

17. The author is highly ________; she can create entirely new fantasy worlds out of nothing.
A. imaginable (可想象的)
B. imaginative (富有想象力的)
C. imagined (被想象的)
D. imaginary (虚构的)

18. The new policy is ________ to most of the employees; they are happy with the changes.
A. pleasing (令人高兴的)
B. pleased (感到高兴的)
C. please (取悦)
D. pleasantry (客套话)

19. The sheer amount of data we have to process by tomorrow is simply ________.
A. overwhelmed
B. overwhelming
C. overwhelm
D. overwhelmingly

20. She let out a ________ sigh after finally submitting the 50-page report.
A. tired
B. tiring
C. tire
D. tiredness

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答案与核心解析参考 (Answer Key & Explanations)

我并不喜欢长篇大论的废话，所以解析直击要害。记住核心原则：-ing / 某些特定后缀（如 -ive, -ful）表示“主动发出该动作/特质”；-ed / 某些特定后缀（如 -able）表示“被动承受该动作/状态”。

1. B (boring)
解析：讲座本身“散发”无聊的特质，主动令人无聊，用 -ing。

2. B (surprised)
解析：Sarah 是“接收”到了惊讶的情绪，感到惊讶，用 -ed。

3. B (amazing)
解析：主语是 It（指代看技术发展这件事），事情本身令人惊叹，用 -ing。

4. B (exhausting)
解析：飞行旅途本身“消耗”人的体力，令人疲惫，用 -ing。

5. B (confusing)
解析：说明书主动散发迷惑性，令人费解，用 -ing。

6. A (disappointed)
解析：他“接收”了失望的情绪，感到失望，用 -ed。

7. B (shocking)
解析：剧情反转本身令人震惊，用 -ing。

8. A (baffled)
解析：侦探们被线索困惑，处于“被困惑”的状态，用 -ed。

9. B (moving)
解析：纪录片主动打动人，令人感动，用 -ing。

10. B (embarrassing)
解析：It 指代摔倒这件事，事情本身令人尴尬，用 -ing。

11. A (fascinated)
解析：易错题。修饰 expression (表情) 时，虽然 expression 是事物，但这个表情反映的是小男孩“内心感到着迷”的状态，是被动接收的情绪外化，因此用 fascinated。

12. B (depressing)
解析：持续的雨令人抑郁，主动散发负面情绪，用 -ing。

13. B (interested)
解析：固定搭配 be interested in。人对某事感到兴趣（被吸引），用 -ed。

14. B (relaxing)
解析：温泉浴主动让人放松，用 -ing。

15. B (convincing)
解析：论点本身具有说服力，主动去说服别人，用 -ing。

16. B (respectful)
解析：进阶辨析。respectful 意为“充满敬意的”（主动给出尊重）；respectable 意为“值得尊敬的”（被动接受尊重）。年轻人对老妇人主动表达敬意，选 B。

17. B (imaginative)
解析：进阶辨析。imaginative 指人“富有想象力的”（主动发挥想象）；imaginable 指事物“可以被想象出来的”（被动）。作者能凭空创造世界，说明她主动想象力丰富，选 B。

18. A (pleasing)
解析：新政策“令人高兴”，主动取悦员工。如果主语是员工，则是 Employees are pleased。这里主语是 policy，选 A。

19. B (overwhelming)
解析：数据量大得“压倒一切”，主动产生压迫感，用 -ing。

20. A (tired)
解析：易错题。与11题同理，“疲惫的叹息”实际上反映的是“人感到疲惫（被动消耗）”的状态，sigh 是人的情绪/状态的直接产物，因此用 tired sigh。如果是 tiring，则表示这个叹息本身会去消耗别人的体力，显然逻辑不通。

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