英语语法祈使句知识点：“be+名词”用于祈使句
<p> 【导语】英语语法让很多学生都头疼，因为复杂难懂的句式和词组有时难以记忆。英语网为大家整理了英语语法大全，希望对同学们的英语语法学习有所帮助。更多内容尽在英语网。</p><p> ■ 许多<span word="be">be</span> (肯定式) +名词结构是习惯用法</p><p> <span word="Be">Be</span> <span word="a">a</span> <span word="man">man</span>! 要做个男子汉!</p><p> <span word="Be">Be</span> <span word="an">an</span> <span word="angel">angel</span> <span word="and">and</span> <span word="fetch">fetch</span> <span word="me">me</span> <span word="my">my</span> <span word="slippers">slippers</span> <span word="please">please</span>. 请行行好，把我的拖鞋拿来。</p><p> <span word="Go">Go</span> <span word="on">on</span>! <span word="Have">Have</span> <span word="another">another</span> <span word="slice">slice</span>! <span word="Be">Be</span> <span word="a">a</span> <span word="devil">devil</span>! 继续吃呀! 再来一片! 放开吃!</p><p> ■ 否定式的<span word="Dont">Dont</span> <span word="be">be</span>+名词结构要常用得多，往往与(愚蠢的)行为有关。如：</p><p> <span word="Dont">Dont</span> <span word="be">be</span> <span word="an">an</span> <span word="ass">ass</span> / <span word="a">a</span> <span word="clown">clown</span> / <span word="a">a</span> <span word="fool">fool</span> / <span word="an">an</span> <span word="idiot">idiot</span>! 别当傻瓜 / 小丑 / 笨蛋 / 白痴!</p><p> ■ 请注意：<span word="be">be</span>+形容词+名词结构：</p><p> <span word="Be">Be</span> <span word="a">a</span> <span word="good">good</span> <span word="girl">girl</span> <span word="at">at</span> <span word="sch">sch</span>001.<span word="Dont">Dont</span> <span word="be">be</span> <span word="a">a</span> <span word="silly">silly</span> <span word="idiot">idiot</span>! 在学校你要做个好姑娘。别当个傻瓜!</p><p> ■ <span word="be">be</span>可以表示成为之义，尤其在广告中发。如：</p><p> <span word="Be">Be</span> <span word="a">a</span> <span word="better">better</span> <span word="cook">cook</span>! <span word="Be">Be</span> <span word="the">the</span> <span word="envy">envy</span> <span word="of">of</span> <span word="your">your</span> <span word="friends">friends</span>! 你可当个好厨师! 你可成为你的朋友们羡慕的对象!</p><p> ■ 否定式<span word="dont">dont</span> <span word="be">be</span> (=<span word="dont">dont</span> <span word="become">become</span>) 常用于劝告。如：</p><p> <span word="Dont">Dont</span> <span word="be">be</span> <span word="a">a</span> <span word="racing">racing</span> <span word="driver">driver</span>! <span word="Its">Its</span> <span word="So">So</span> <span word="dangerous">dangerous</span>. 别当赛车运动员!太危险了。</p><p> ■ <span word="be">be</span>还可以意谓装作，特别是用在<span word="you">you</span>后面。如：</p>
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