【问】 (a) I asked him to leave.

(b) I asked for him to leave.

上面的两个句子是否可以作同样的句法分析：SV Oi Od?

【答】 句(a)应分析为SVO_iO_d(参见ask)，句(b)则应分析为SVO，即把ask for看作是动词+介词结构(同arrange for，long for，plan for，wait for)，而把动词不定式短语看作是介词for的宾语。类例：

1. They planned for the mayor to arrive on the following day. (CGEL)

他们计划市长第二天到达。

2. I’ve arranged for a car to pick them up at the station. (CIE)

我已经安排了一辆车到车站去接他们。

3. I longed for him to stay. (Snow)

我期望他留下。

4. We are waiting for the rain to stop. (ALD)

我们在等雨停下来。

5. They arranged for Mary to come at once. (CGEL)

他们安排玛丽立刻来。