19. The teacher’s six-month practical training at a local middle school proved ________ to his professional knowledge and teaching skills.
(A) value
(B) valued
(C) valuing
(D) invaluable
統計: A(127), B(58), C(55), D(126), E(0) #3128946
詳解 (共 4 筆)
The rumor proved true.
那謠言結果是真的。
The theory proved difficult to understand for many students.
對許多學生來說,這個理論難以理解的。
The new technology proved to be more efficient than the old one.
新的技術比舊技術更有效。
The investment proved to be a wise decision, yielding significant returns.
這筆投資證明是明智的決定,帶來了豐厚的回報。
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valued adj. 有用的;重要的 |
invaluable adj. 極有用的;寶貴的 |
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valued 只能加在名詞前面 a valued customer 參考: https://www.ldoceonline.com /dictionary/valued
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invaluable to/for Your advice has been invaluable to us. 參考: https://www.oxfordlearnersdictionaries.com/ definition/english/invaluable?q=invaluable |
The teacher’s six-month practical training at a local middle school proved invaluable to his professional knowledge and teaching skills.
? 題目:
The teacher’s six-month practical training at a local middle school proved ________ to his professional knowledge and teaching skills.
翻譯:
這位老師在當地國中為期六個月的實習證明對他的專業知識與教學技巧非常 ________。
✅ (D) invaluable — 正確答案
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invaluable = 「非常有價值的;極有幫助的」
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雖然有個 “in-” 前綴,但它不是「沒價值」,而是「無價的、極有價值的」(類似 “priceless”)。
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常搭配動詞 prove (to be) invaluable to/for...
→ 結構非常自然、語意通順。
例句:
Her advice proved invaluable to the success of the project.
她的建議對這個計畫的成功來說極其重要。
❌ 錯誤選項:
(A) value
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名詞,不能直接放在此句當形容詞使用。
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“proved value” 語法不對,應該是 “proved to be of value” 才可行,但那不是題目提供的結構。
(B) valued
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過去分詞,意思是「被珍惜的」,但通常用來形容人或東西(如:a valued friend),不適合放在這種句型中。
(C) valuing
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動名詞或現在分詞形式,不符合語法與語意。