英语中助动词be的用法小结
<p>&<span word="nbsp">nbsp</span>;</p><p> 【小编寄语】今天英语网小编教给同学们的是英语中助动词<span word="be">be</span>的用法小结，一起来学习下吧!祝同学们学习进步!</p><p> 1. <span word="be">be</span> +现在分词，构成进行时态。如：</p><p> <span word="They">They</span> <span word="are">are</span> <span word="having">having</span> <span word="a">a</span> <span word="meeting">meeting</span>. 他们正在开会。</p><p> <span word="We">We</span> <span word="were">were</span> <span word="planting">planting</span> <span word="trees">trees</span> <span word="this">this</span> <span word="time">time</span> <span word="yesterday">yesterday</span>. 我们昨天这个时候在植树。</p><p> 2. <span word="be">be</span> + 过去分词，构成被动语态。如：</p><p> <span word="The">The</span> <span word="door">door</span> <span word="was">was</span> <span word="broken">broken</span> <span word="by">by</span> <span word="Tom">Tom</span>. 门是汤姆打破的。</p><p> <span word="English">English</span> <span word="is">is</span> <span word="taught">taught</span> <span word="in">in</span> <span word="our">our</span> <span word="school">school</span>. 我校教英语。</p><p> 3. <span word="be">be</span> + 动词不定式，可表示：</p><p> <span word="A">A</span>. 打算、决定、计划、安排等。如：</p><p> <span word="He">He</span> <span word="is">is</span> <span word="to">to</span> <span word="visit">visit</span> <span word="Japan">Japan</span> <span word="next">next</span> <span word="week">week</span>. 他决定下周访问日本。</p><p> <span word="I">I</span> <span word="was">was</span> <span word="to">to</span> <span word="have">have</span> <span word="told">told</span> <span word="you">you</span> <span word="yesterday">yesterday</span>, <span word="but">but</span> <span word="you">you</span> <span word="were">were</span> <span word="not">not</span> <span word="in">in</span>. 我本打算昨天告诉你的，但你不在家。</p><p> <span word="B">B</span>. 指示、命令、禁止等，即&<span word="ldquo">ldquo</span>;必须，一定。如：</p><p> <span word="You">You</span> <span word="are">are</span> <span word="to">to</span> <span word="hand">hand</span> <span word="in">in</span> <span word="the">the</span> <span word="exercises">exercises</span> <span word="tomorrow">tomorrow</span>. 你们明天必须交练习。</p><p> <span word="You">You</span>&<span word="rsquo">rsquo</span>;<span word="re">re</span> <span word="not">not</span> <span word="to">to</span> (=<span word="You">You</span> <span word="mustn">mustn</span>&<span word="rsquo">rsquo</span>;<span word="t">t</span>) <span word="smoke">smoke</span> <span word="here">here</span>. 你不可以在此处抽烟。</p><p> <span word="C">C</span>. 责任、义务、需要，即&<span word="ldquo">ldquo</span>;该不该。如：</p><p> <span word="You">You</span> <span word="are">are</span> <span word="to">to</span> (=<span word="should">should</span>) <span word="report">report</span> <span word="to">to</span> <span word="the">the</span> <span word="police">police</span>. 你应该报警的。</p>
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