私醫聯招 英文歷屆試題｜第 21 題
101 學年度
The cardiovascular system (21) the heart, blood vessels, and blood. From the heart, blood travels into the arteries and their smaller branches. It continues to the capillaries. Then, it moves to the branches of the vein structure before (22) to the heart. The heart serves as a pump. Arteries transport blood from the heart to body organs and tissues. Veins transport blood back to the heart.
- is composing
- is composing of
- is composed
- is composed of
提示
『由...所組成』的固定被動片語是什麼，注意介系詞是否需要保留。
正確答案
正解：D
詳解
A. is composing 為主動進行式，語意變成「心血管系統正在組成」，不合句意。
B. is composing of 同樣是主動進行式且多加了不存在的 of 搭配，文法錯誤。
C. is composed 缺少必要的介系詞 of，若要接受詞（the heart, blood vessels, and blood）必須用「be composed of」。
D. is composed of 為「由……組成」的固定被動片語，後面直接接組成成分，符合句意與文法，故為正解。
