(1)以all开头的名词短语，for要省略。如：

I stayed with her all the morning.

(2)否定句中，表示时间的短语前的for不能省略。如：

I haven’t seen you for thirty years.

(3)时间状语在主句之前，for不能省略。如：

For the whole morning,the old man kept reading.

8.某些名词与介词构成的固定搭配。

(1)要求接to的名词有：key,answer,visit,entrance,apology,introduction,road等。

(2)要求接in 的名词有：interest,satisfaction,expert等。

He is expert in teaching small children.

介词的用法很繁杂，要在平时注意积累。

【试题放送】

【2012湖北卷】25. The furniture, with its modern style and bright colors, suits modern houses and their gardens, but looks _______ in the garden of a traditional home

A. out of question  B. out of order C. out of sight D. out of place

【答案】D

【考点】考查介词短语辨析。难度中等。