爱思英语编者按：如果错误行含有介词，则往往要注意排查介词是否误用。介词搭配大都属于习惯用法，所以平时的积累很重要。以下为历年考试中出现过的介词搭配。

技巧7 判断介词搭配是否有误

如果错误行含有介词，则往往要注意排查介词是否误用。介词搭配大都属于习惯用法，所以平时的积累很重要。以下为历年考试中出现过的介词搭配。

on average平均

in the end终于，最后

only to不料，结果却

be on one's feet站起来

care for/about在乎，照顾

in danger处于危险中

with…feeling怀着……感情

at the tum of the century在世纪之交时

at the end of sth．在……的最后

at sb．’s disposal供某人使用／支配

give discounts to sb.给某人折扣

to a certain/great extent在某种／很大程度上

be conscious/unconscious of有／无意识的

on a(n)...occasion在……时候

slick to ll hold on to坚持

on the grounds of以……理由

irrespective of不管，不顾

at risk在危险中

as opposed to 而非

get to one's feet站起来

真题例证1

such cries than we find in English. It is true that the absence of such evidence does not disprove the theory, but in other grounds too the theory is not very attractive.(6)____

分析：与grounds搭配的介词为on，而非in。on other grounds意为“以其他理由”。

真题例证2

to the way in which these words should be arranged to convey a particular message; the English speaker has in his disposal a vocabulary and a set of grammatical rules which enable him to communicate his(3)____

分析：该行要表达的意思是，说英语的人有自己使用的词汇量和一套语法规则。disposal应与at搭配，at sb.'s disposal表示“供某人使用／支配”。