中考冲刺英语专练第七讲
<p> 【第7讲 介词】</p><p> 别看介词是一种虚词，它在句中的作用却非常重要。它用来表明名词与句中其他词的关系，</p><p> 不能单独使用。常考点包括一些固定搭配和一些近义词。固定搭配如：<span word="on">on</span> <span word="ones">ones</span> <span word="way">way</span> <span word="home">home</span>,<span word="help">help</span>...<span word="with">with</span>,<span word="send">send</span> <span word="for">for</span>,<span word="be">be</span> <span word="interested">interested</span> <span word="in">in</span>..., <span word="be">be</span> <span word="late">late</span> <span word="for">for</span>, <span word="be">be</span> <span word="angry">angry</span> <span word="with">with</span>,<span word="be">be</span> <span word="good">good</span> <span word="at">at</span>等。当然这需要你好好记忆了。</p><p> 常用介词解析及用法比较：</p><p> <span word="at">at</span>,<span word="on">on</span>和<span word="in">in</span>：这三个介词在试卷中的出现频率极高。对于它们的的分辨只要记住一句话就可以了。<span word="at">at</span>表示点，<span word="on">on</span>表示线，<span word="in">in</span>表示面。也就是说它们表达的范围逐渐增大。<span word="at">at</span> <span word="six">six</span> <span word="oclock">oclock</span>, <span word="at">at</span> <span word="noon">noon</span>, <span word="at">at</span> <span word="the">the</span> <span word="age">age</span> <span word="of">of</span> <span word="sixteen">sixteen</span>等用<span word="at">at</span>表示时刻或时间的点以及年龄。<span word="on">on</span>具体到一周中的各天,日期及某特定的一天早上,下午,晚上：<span word="on">on</span> <span word="Saturday">Saturday</span>，<span word="on">on</span> <span word="July">July</span> 1<span word="st">st</span>，<span word="on">on</span> <span word="my">my</span> <span word="birthday">birthday</span>，<span word="on">on</span> <span word="the">the</span> <span word="morning">morning</span> <span word="of">of</span> <span word="July">July</span> 16<span word="th">th</span>，<span word="on">on</span> <span word="a">a</span> <span word="spring">spring</span> <span word="afternoon">afternoon</span>。<span word="in">in</span>表达的范围更大一些。与世纪、年代、季节、月份以及早上、上午、晚上等连用。如：<span word="in">in</span> <span word="the">the</span> <span word="seventh">seventh</span> <span word="century">century</span>，<span word="in">in</span> 1950<span word="s">s</span> ,<span word="in">in</span> 2000, <span word="in">in</span> <span word="the">the</span> <span word="morning">morning</span>等。</p><p> <span word="for">for</span>,<span word="since">since</span>：<span word="for">for</span>表示多长时间。<span word="since">since</span>后接时间起点,其终点往往为现在，常与完成时连用。牢牢记住哟。</p><p> <span word="after">after</span>, <span word="in">in</span> ：这两个介词都可以表示时间在以后的意思。其区别是：<span word="after">after</span> 以过去为起点，表示过去一段时间之后，常用于过去时态的句子；<span word="in">in</span> 以现在为起点，表示将来一段时间以后，常用于将来时态的句子。</p>
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