职称英语理工类词汇复习资料之介词
<p> 1 时间介词 常见的时间介词有<span word="in">in</span>，<span word="at">at</span>，<span word="on">on</span>，<span word="for">for</span>，<span word="within">within</span>等，它们分别与表示时间的词语构成句子中的时间状语，如： <span word="in">in</span>： <span word="inspring">inspring</span>在春天。<span word="in">in</span> <span word="two">two</span> <span word="months">months</span>在两个月内;过两个月后。<span word="in">in</span> <span word="those">those</span> <span word="days">days</span>在当时。<span word="in">in</span> <span word="a">a</span> <span word="few">few</span> <span word="days">days</span>几天以后，几天之内</p><p> <span word="at">at</span>：</p><p> <span word="at">at</span> <span word="five">five</span> <span word="oclock">oclock</span>在5点。<span word="at">at</span> <span word="noon">noon</span>在中。<span word="at">at</span> <span word="Christmas">Christmas</span>在圣诞节。<span word="atforty">atforty</span>年四十</p><p> <span word="On">On</span>：</p><p> <span word="on">on</span> <span word="Sunday">Sunday</span>在星期日。<span word="on">on</span> <span word="the">the</span> <span word="morning">morning</span> <span word="of">of</span> <span word="May">May</span> 5<span word="th">th</span>在五月五日的早晨。<span word="on">on</span> <span word="arriving">arriving</span> <span word="home">home</span>一到家。</p><p> <span word="for">for</span>：</p><p> <span word="for">for</span> <span word="hours">hours</span>[<span word="days">days</span>，<span word="years">years</span>]有几小时[几天，几年]</p><p> <span word="within">within</span>：</p><p> <span word="within">within</span> <span word="a">a</span> <span word="week">week</span>在一个星期内。</p><p> 2.动态介词与静态介词</p><p> 介词短语结构与<span word="be">be</span>动词搭配使用，构成系表结构，这个结构属于静态结构，通常用于描述事物的状态，特征，如：</p><p> <span word="The">The</span> <span word="book">book</span> <span word="is">is</span> <span word="on">on</span> <span word="the">the</span> <span word="desk">desk</span>.那本书在桌上。</p><p> 一些介词本身也可以区分为动态介词和静态介词，如：<span word="in">in</span>，<span word="on">on</span>，<span word="at">at</span>等属于典型的静态介词，而<span word="into">into</span></p><p> 和<span word="onto">onto</span>就属于典型的动态介词，举例如下：</p><p> <span word="in">in</span>：<span word="live">live</span> <span word="in">in</span> <span word="London">London</span>住在伦敦</p><p> <span word="on">on</span>：<span word="with">with</span> <span word="his">his</span> <span word="hat">hat</span> <span word="on">on</span> <span word="his">his</span> <span word="head">head</span>头上戴着帽子</p><p> <span word="at">at</span>：at the foot ofthe hill在山脚</p><p> 比较：</p>
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