名词的分类
名词的单复数形式变化规则及不规则变化
重要程度:10 分
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<h2>名词的单复数形式变化规则</h2>
<ul>
<li><strong>规则变化:</strong></li>
<ul>
<li>一般情况加-s:book → books, pen → pens</li>
<li>以s, x, ch, sh结尾的名词加-es:bus → buses, box → boxes, watch → watches, brush → brushes</li>
<li>以辅音字母+y结尾的名词变y为i再加-es:city → cities, country → countries</li>
<li>以-f或-fe结尾的名词变-f或-fe为-ves:knife → knives, leaf → leaves</li>
<li>以-o结尾的名词有的加-es,有的加-s:potato → potatoes, tomato → tomatoes, photo → photos, piano → pianos</li>
</ul>
</ul>
</div>
<div>
<h2>不规则变化:</h2>
<ul>
<li>改变内部元音:man → men, woman → women, tooth → teeth, foot → feet</li>
<li>改变词尾:child → children, ox → oxen</li>
<li>完全不规则:mouse → mice, goose → geese</li>
</ul>
</div>
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<h2>例题说明</h2>
<p>1. 请写出下列名词的复数形式:</p>
<ol>
<li>book</li>
<li>bus</li>
<li>city</li>
<li>knife</li>
<li>tomato</li>
</ol>
<p>答案:</p>
<ol>
<li>books</li>
<li>buses</li>
<li>cities</li>
<li>knives</li>
<li>tomatoes</li>
</ol>
</div>
<div>
<p>2. 请写出下列名词的复数形式:</p>
<ol>
<li>man</li>
<li>tooth</li>
<li>child</li>
<li>mouse</li>
</ol>
<p>答案:</p>
<ol>
<li>men</li>
<li>teeth</li>
<li>children</li>
<li>mice</li>
</ol>
</div>