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考点透析 知识清单 考点警示 介词是语法填空题的必考点之一，通常考查介词的基本意义与用法，以及介词与名词等构成的短语。介词后通常要接宾语，而作宾语的往往是名词、代词或动名词，因此，做题时如果空格后是名词、代词或动名词时，这个空格很可能要填入介词。然后根据语境、介词意义、搭配关系，填入适当的介词。例如： (2017·广东)Nick replied，“The only reason a man would sell salt (21)at a lower price would be because he was desperate for money.And anyone who took advantage of that situation would be showing a lack of respect (22)for the sweat and struggle of the man who worked very hard to produce it.” 第21空，at a lower price“比较低的价格”，是一个常用短语。 第22空，show respect for sb/sth是固定搭配，“对……表示尊重”。 1．英语中有部分介词可作副词和连词，考生应根据其在句子中的作用来判定。例如： Keep off the grass.请勿践踏草坪。(介词) She took off her gloves.她脱掉了手套。(副词) Since then，it has developed another bad habit. 自那以后，它养成了另一种坏习惯。(介词) It is ten years since we two parted. 自从我们两人分别以来已经十年了。(连词) We have been friends ever since. | 
