_______ are prepared from flour or meal derived from some form of grain.
(A) With bakery products
(B) While bakery products
(C) Bakery products
(D) They are bakery products
空格為主格/主詞 Are prepared 為動詞詞組 from flour or meal derived from some form of grain為介系詞詞組當副詞修飾 prepared
介系詞詞組內部結構 From為介系詞 Flour or meal為受詞(介系詞之受詞) derived from some form of grain 為分詞當形容詞修飾 flour or meal 為 which was derived from some form of grain 形容詞子句簡化而來的分詞片語
而分詞內部結構為 Derived 為過去分詞(形容詞)表達被動的語意 From some form of grain 為介系詞詞組當副詞修飾 derived 這個形容詞(分詞)
From some form of grain 內部結構為 From介系詞 Some form of grain 為受詞(介系詞之受詞)
空格為主格/主詞 Are prepared 為動詞詞組 from flour or meal derived from some form of grain為介系詞詞組當副詞修飾 prepared
介系詞詞組內部結構 From為介系詞 Flour or meal為受詞(介系詞之受詞) derived from some form of grain 為分詞當形容詞修飾 flour or meal 為 which was derived from some form of grain 形容詞子句簡化而來的分詞片語
而分詞內部結構為 Derived 為過去分詞(形容詞)表達被動的語意 From some form of grain 為介系詞詞組當副詞修飾 derived 這個形容詞(分詞)
From some form of grain 內部結構為 From介系詞 Some form of grain 為受詞(介系詞之受詞)
Some form of grain 為名詞詞組
Some為限定詞 Form為名詞詞組的核心(中心詞) Of grain為介系詞詞組當形容詞當後置修飾詞
A with bakery products 為介系詞詞組,在此題語意不適合當主詞 B while為連接詞、名詞,文法上此題只有一個句子無須用到介系詞;名詞不符合語意 C 正解 D are為動詞,此選項如果要當主詞需要變成名詞子句 that they are bakery products但需要顧及語意,故不適合為此題的主詞