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.
从此我们一直是朋友。(副词) 2．在平时学习时，应将“介词＋名词＋介词”构成的短语介词作为一个整体来记忆。
如：at the cost of以……为代价
in the name of以……的名义
on behalf of代表……
with regard to关于……
for the sake of为了……，等等。 3．“动词＋介词”构成短语动词，其作用相当于一个及物动词。这类短语动词数量庞大，需要在平时的学习中逐一记忆。
dream of梦想insist on坚持
depend on
依靠
belong to
属于
lead to
导致
apply for
申请
deal with
处理
attend to
照料
argue about
争论
call on
拜访
refer to
提到
learn about
了解
speak of
谈起
wait on
服侍 date from
起源于
run after
追赶 consist of
由……组成
come across
偶然遇见 object to
反对
send for
派人去请