Christal asked in 社會與文化語言 · 9 years ago

請問英文詞性及代名詞問題

想請問此句

Any medical test will sometimes fail to detect a condition when it is present and indicate that it is present when it is not.

1.Any medical test will sometimes fail to detect a

condition

此句中will是助動詞,fail原形動詞,因為同句不能有兩個動詞所

以用to V(to detect),是這樣分嗎??

2.when it is present and indicate that it is present when

it is not.

這三個it是否會造成指涉不清,不知其是指any medical test還

是a condition?

3 Answers

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  • PONY
    Lv 7
    9 years ago
    Favorite Answer

    想請問此句

    Any medical test will sometimes fail to detect a condition when it is present and indicate that it is present when it is not.

    1.Any medical test will sometimes fail to detect a condition

    此句中will是助動詞,fail原形動詞,因為同句不能有兩個動詞所

    以用to V(to detect),是這樣分嗎?? Answer:在此用fail to detect 或fail detecting皆可,都是指「檢查不出來(某事物)」。英文除少數某幾個動詞,例:remember, forget, stop等後面接不定詞to+原形動詞,或是接動名詞Ving,意思會有很大不同。但在此,兩種用法差異不大。 2.when it is present and indicate that it is present when it is not.

    這三個it是否會造成指涉不清,不知其是指any medical test還 是a condition? Answer: 三個 it 在此都是指 a condition。

    原句用and (連接詞)來連接的結構,可分解成下列兩部份:

    Any medical test will sometimes fail to detect a condition when it (=the condition) is present

    (第一個部份:任何醫學的檢測,當某個狀況(事實上)是存在時,有時也會檢查不出來)

    and (連接詞) (Any medical test will sometimes) indicate that it (=the condition) is present when it (=the condition) is not.

    (第二個部份:任何醫學的檢測,當某個狀況是不存在時(即沒問題),有時檢查結果卻會指出它有問題) 因主詞Any medical test、助動詞will、甚至副詞sometimes是共用的 (同一個) ,所以可用and (連接詞)來連接,而成為原句。

  • 9 years ago

    Any medical test will sometimes fail to detect a condition when it is

    present and indicate that it is present when it is not. DaSaGwa大大的列舉式寫法恐怕是理解有誤:

    ....fail

    (1) to detect....

    (2) to indicate a condition that is present when it is not. (X) 正確的列舉式寫法是:Any medical test will sometimes:

    (1) fail to detect a condition when it is present, and

    (2) indicate that it (=a condition) is present when it is not. (O)

    fail與indicate是同階的動詞, 共用助動詞will, 兩個子句才形成語意對照. 而DaSaGwa所寫的誤為共用fail, 以致於其第(2)子句單獨看起來:"fail to indicate a condition that is present when it is not"語意不合邏輯,

    因為「無法顯示一個存在的情況」與「情況其實不存在」二者並非矛盾對照.

    關於版主的疑問:

    1.Any medical test will sometimes fail to detect a

    condition

    此句中will是助動詞,fail原形動詞,因為同句不能有兩個動詞所

    以用to V(to detect),是這樣分嗎??

    沒錯.fail是及物動詞, 需要受詞, 後面加了to以後, 不定詞片語"to detect a condition"就擔任受詞. 2.when it is present and indicate that it is present when

    it is not.

    這三個it是否會造成指涉不清,不知其是指any medical test還

    是a condition? 從上面正確的列舉式寫法可以清楚看出, 三個it都是指a condition, 沒有任何混淆不清.

    Source(s): *Infinito - 無極*
  • 9 years ago

    If you want to see this sentence in much clearer way you can write it as:

    Any medical test sometimes fail

    (1) to detect a condition when it is present, and

    (2) to indicate a condition that is present when it is not.

    If you rewrite the sentence as above, you would see that every "it" in that sentence represents the same thing, i.e. a condition.

    Your saying about "to" is correct.

    Source(s): self
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