非謂語動詞邏輯主語透視

    發(fā)布時(shí)間:2016-8-26 編輯:互聯(lián)網(wǎng) 手機(jī)版

    作者:孟衛(wèi)中

    一、動名詞既具備動詞的性質(zhì)(可接自己的賓語、可受副詞的修飾),又具有名詞的性質(zhì)(在句中作主語、賓語、表語等);前面還可以加上形容詞性物主代詞my, his, her, your, our, their等或名詞的所有格Tom's, his father's, my friend's等,構(gòu)成動名詞的復(fù)合結(jié)構(gòu)。其中物主代詞或名詞的所有格是動名詞的邏輯主語。如:

    Your going there won't do good to him.

    My only comfort is his behaving well again.

    當(dāng)動名詞的復(fù)合結(jié)構(gòu)在句中作賓語或表語時(shí),邏輯主語可用代詞賓格代替物主代詞或用名詞普通格代替名詞所有格。

    二、V-ing形式在句中作狀語時(shí),其邏輯主語應(yīng)該是句子的主語,即:誰充當(dāng)了句子的主語,誰就是動作的發(fā)出者。如:

    Just after putting away the dishes, Mother heard the doorbell ring.

    三、有些分詞用來表示說話人的態(tài)度或看法,通常放在句首,相當(dāng)于一個(gè)插入語。此時(shí)分詞的邏輯主語不是句子主語。常見的有considering, judging from / by, generally / strictly / frankly / honestly / exactly speaking, taking...into consideration, supposing, speaking / talking of, seeing that等。如:

    Judging from his accent, he is from Australia.

    四、不定式在句中作狀語時(shí),其邏輯主語通常是句子的主語,即:誰充當(dāng)了句子的語,誰就是這個(gè)目的的發(fā)出者。如:

    To learn English well, one needs a lot of practice.

    但也有一些固定表達(dá)不受這條規(guī)則的限制,常見的有:to tell you the truth(老實(shí)說), to be honest / frank(老實(shí)說,坦白地說), to make matters worse(更糟糕的是), to start / begin with(首先), to make a long story short(長話短說), to conclude(總而言之), to be brief(簡言之), to be exact(確切地說), to be frank with you(老實(shí)說), to say nothing of(姑且不說) 等。這些固定搭配常置于句首,用作插入語。

    五、在It is + adj. + for / of sb. to do sth.句型中,it是形式主語,不定式的復(fù)合結(jié)構(gòu)for / of sb. to do sth. 是真正的主語。復(fù)合結(jié)構(gòu)中的代詞或名詞即為不定式的邏輯主語。如:

    It's kind of you to say so.

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