英文文法-only 10 percent of the ..

On average, only 10 percent of the calories a person consumes ____.

(A)is used up to digest food

(B)is to be used up digesting food

(C)being used up to digest food

(D)being used up to digest food

為什麼答案為A?

...a person consumes... 的"consumes"不是動詞嗎?

2 Answers

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  • 1 decade ago
    Favorite Answer

    on average, "only 10 percent of calories (that) a person consumes " is used up to digest food .

    兩個句子combine 在一起的 所以consume 在這是動詞沒錯

    a person consumes 在修飾 only 10 percent of calories

    而這一整件事 is used up to digest food

    希望有幫到忙

    Source(s): 自己的經驗
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  • 書揚
    Lv 5
    1 decade ago

    On average, only 10 percent of the calories a person consumes are used up to digest food.

    平均而言,一個人所消耗的卡路里中,只有百分之十是用來消化食物。

    在這句中,a person consumes是在修飾前面的calories,所以缺少動詞!而真正句子的主詞為 10 percent。但這個10 percent本身是一種空的字眼,並無法看出真正的單複數型態,因此這時就得藉助介系詞片語內的名詞來決定動詞的單複數。由於calories是複數,因此我覺得應該是are used up....才對!

    舉幾個例子來說:

    Half of the pears still look good. 有一半的棃子看起來還很好。

    Half of this pear is rotten. 這棃子有一半爛了。

    Nearly 40 percent of the people in our town never vote in local elections. (people是複數喔!)

    Source(s): 自己
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