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非謂語動詞的一般式表示的動作與謂語動詞表示的動作同時發(fā)生或在其后發(fā)生，非謂語動詞的完成式表示的動作發(fā)生在謂語動詞表

示的動作之前。

1.動詞不定式

例1：A lot of young people are learning to drive cars. (同時發(fā)生)

例2：All of us expected to discover a new oil field. (非謂語動詞動作發(fā)生在后)

例3：He is said to have studied English for three years. (非謂語動詞動作發(fā)生在前)

注：動詞不定式的完成式有時用在intended, expected, meant, were to, was to等過去式的動詞后面，表示未實現(xiàn)的行為。例如：

1)I meant to have sent the book to you by mail. （我本想把這本書郵寄給你的。）

2)He was to have been the new ambassador, but he fell ill. (他原是要任新大使的，但是他病了。)

2.動名詞

例1：I am thinking of getting a new dictionary. (非謂語動詞動作發(fā)生在后)

例2：We enjoy watching colour TV. (與謂語動詞動作同時)

例3：He forgot having promised to write things for us. （非謂語動詞動作發(fā)生在前。）

3.分詞

例1：Singing a song, he came into the room. （非謂語動詞動作與謂語動詞動作同時發(fā)生）

例2：Having written his composition, he went to have a heart to heart talk with Wang. (非謂語動詞動作發(fā)生在前)

非謂語動詞的比較

1.動名詞和動詞不定式在用法上的比較

(1)一般說來動名詞所表示的動作在意義上是比較抽象的、一般的，時間概念不強，不是指某一次的動作；而動詞不定式所表示的

動作則往往是具體的一次行為。例如：

1）I like swimming, but I don’t like to swim today.

2) They prefer staying indoors when the weather is cold.

3) Would you prefer to stay at home this evening?

(2)動詞不定式的邏輯主語，常常是句子的主語或句中的某個詞；而動名詞的邏輯主語可能是句子主語或句中某個詞，也可能是泛

指一般人物，在句子里是找不著的。例如：

1）I hate to be sitting idle. (我不想閑坐著。)（指自己）

2）I hate saying nothing at a meeting but gossiping afterwards. (我不喜歡開會不說會后亂說。)（可能指自己，也可能泛

指一般人）

(3)有些詞后既可接動名詞亦可接動詞不定式，但意義不同，如stop, remember, forget, neglect, omit, dislike, detests,

begin, continue, start, regret, intend, attempt, propose等。例如：

When the teacher came in, the students stopped talking. (talking 是賓語，指停止講話這個動作)

When the teacher came in, the students stopped to talk. (to talk是目的狀語，指停下前一動作來進行talk)

Remember, forget doing something （指已做過的事）

Remember, forget to do something (指未做過的事)

非謂語動詞的一般式和完成式