2017高考英语一轮语法对点讲练：12 介词、并列连词
<p> 语法对点讲练十二 介词、并列连词</p><p> 一、常用介词</p><p> 知识点讲解</p><p> 1．表示时间的介词</p><p> (1)<span word="at">at</span>, <span word="on">on</span>, <span word="in">in</span></p><p> ①<span word="at">at</span>表示时间点，也可表示节假日。</p><p> <span word="at">at</span> 3：00, <span word="at">at</span> <span word="noon">noon</span>, <span word="at">at</span> <span word="that">that</span> <span word="time">time</span>, <span word="at">at</span> <span word="Christmas">Christmas</span> <span word="Day">Day</span></p><p> ②<span word="on">on</span>表示一天或某天的一部分。</p><p> <span word="on">on</span> <span word="Monday">Monday</span>, <span word="on">on</span> <span word="Friday">Friday</span> <span word="evening">evening</span>, <span word="on">on</span> <span word="September">September</span> 24</p><p> ③<span word="in">in</span>表示少于或多于一天的时间段。</p><p> <span word="in">in</span> <span word="the">the</span> <span word="evening">evening</span>, <span word="in">in</span> <span word="a">a</span> <span word="week">week</span>, <span word="in">in</span> <span word="three">three</span> <span word="days">days</span>, <span word="in">in</span> 2017, <span word="in">in</span> <span word="my">my</span> <span word="childhood">childhood</span></p><p> ④<span word="morning">morning</span>, <span word="evening">evening</span>, <span word="afternoon">afternoon</span>, <span word="night">night</span>等名词如果有表示具体某一天的名词修饰时，用<span word="on">on</span>。</p><p> <span word="on">on</span> <span word="Monday">Monday</span> <span word="morning">morning</span>, <span word="on">on</span> <span word="a">a</span> <span word="cold">cold</span> <span word="winter">winter</span> <span word="morning">morning</span></p><p> (2)<span word="by">by</span>, <span word="during">during</span>, <span word="for">for</span>, <span word="till">till</span>, <span word="until">until</span></p><p> ⑤<span word="by">by</span>表示“不迟于；到……为止”。</p><p> <span word="by">by</span> <span word="six">six</span> <span word="o">o</span>'<span word="clock">clock</span>, <span word="by">by</span> <span word="the">the</span> <span word="end">end</span> <span word="of">of</span> <span word="last">last</span> <span word="month">month</span></p><p> ⑥<span word="during">during</span>表示一段持续的时间，也可以表示这段持续时间中的某一点或某一刻。</p><p> <span word="during">during</span> <span word="the">the</span> <span word="summer">summer</span> <span word="vacation">vacation</span></p><p> ⑦<span word="for">for</span>表示一段时间，后面接具体的时间单位，后边的名词常用复数。</p><p> <span word="I">I</span> <span word="have">have</span> <span word="been">been</span> <span word="working">working</span> <span word="here">here</span> <span word="for">for</span> <span word="five">five</span> <span word="years">years</span>.</p><p> ⑧<span word="till">till</span>和<span word="until">until</span>表示一段时间，<span word="till">till</span>用在肯定句中与持续性动词连用，<span word="until">until</span>用在否定句中，与瞬间动词连用。</p><p> <span word="Although">Although</span> <span word="the">the</span> <span word="lecture">lecture</span> <span word="was">was</span> <span word="very">very</span> <span word="boring">boring</span>, <span word="he">he</span> <span word="stayed">stayed</span> <span word="till">till</span> <span word="the">the</span> <span word="end">end</span> <span word="of">of</span> <span word="it">it</span>.</p>
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