人教版九年级英语7单元知识点_含有情态动词的被动语态怎么用?get one‘s ears pierc
<p>根据教育部课程标准与一线教学经验,人教版九年级英语第七单元的核心价值在于系统建立<strong>含有情态动词的被动语态</strong>的应用能力,这一语法点是中考英语的重要考查内容。本单元以"Teenagers should be </p> allowed to choose their own clothes"为话题,将语法学习融入真实语境。</p><h2>1. 核心语法:含有情态动词的被动语态 ??
</h2><p><strong>基本结构</strong>为:情态动词(should, can, must, may等) + be + 及物动词的过去分词。</p>
<p><strong>例句与应用对比</strong>:</p>
<table><thead><tr><th><p>句型类型</p></th><th><p>主动语态例句</p></th><th><p>被动语态转换</p></th></tr></thead><tbody><tr><td><p>表达允许</p></td><td><p>Parents <strong>should allow</strong>? teenagers to make some choices.</p></td><td><p>Teenagers <strong>should be allowed</strong>? to make some choices.</p></td></tr><tr><td><p>表达禁止</p></td><td><p>The school <strong>should not allow</strong>? students to smoke.</p></td><td><p>Students <strong>should not be allowed</strong>? to smoke in the school.</p></td></tr><tr><td><p>表达义务</p></td><td><p>We <strong>must obey</strong>? the school rules.</p></td><td><p>The school rules <strong>must be obeyed</strong>.</p></td></tr></tbody></table><p><strong>否定句与疑问句</strong>:</p>
<ul><li><p><strong>否定句</strong>:在情态动词后直接加not。例如:Teenagers <strong>should not be allowed</strong>? to drive at 16.</p></li><li><p><strong>一般疑问句</strong>:将情态动词提到句首。例如:<strong>Should</strong>? teenagers <strong>be allowed</strong>? to have part-time jobs?</p></li></ul><h2>2. 关键短语与句型深度解析
</h2><p><strong>1. get/have sth. done 结构</strong></p>
<p>意为“使某事被做”,动作常由他人完成。例如:Anna wants to <strong>get her ears pierced</strong>(安娜想打耳洞)。此结构中,过去分词(pierced, cut, repaired)表达被动含义。</p>
<p><strong>2. enough 的用法</strong></p>
<ul><li><p><strong>形容词/副词 + enough + to do sth.</strong>:足够…可以做某事。例如:They are not <strong>serious enough to make</strong>? their own decisions.(他们不够稳重,不能自己做决定。)</p></li><li><p><strong>enough + 名词</strong>:足够的…。例如:We don't have <strong>enough time</strong>.</p></li></ul><p><strong>3. regret 的用法辨析</strong></p>
<ul><li><p><strong>regret doing sth.</strong>:后悔做过某事(事情已发生)。例如:I <strong>regret talking</strong>? back to my mom.(我后悔和妈妈顶嘴了。)</p></li><li><p><strong>regret to do sth.</strong>:遗憾地要做某事(事情尚未做)。例如:I <strong>regret to tell</strong>? you that you failed the test.(我很遗憾地通知你考试没通过。)</p></li></ul><h2>3. 高频词汇与短语清单
</h2><p>为方便记忆,博主将本单元重点词汇短语整理归类:</p>
<p><strong>核心权利与义务词汇</strong>:</p>
<ul><li><p>be allowed to do sth.(被允许做某事)</p></li><li><p>allow sb. to do sth.(允许某人做某事)</p></li><li><p>make one’s own decision(自己做决定)</p></li><li><p>get in the way of(妨碍)</p></li></ul><p><strong>日常生活相关短语</strong>:</p>
<ul><li><p>get one’s ears pierced(打耳洞)</p></li><li><p>have part-time jobs(做兼职)</p></li><li><p>stay up(熬夜)</p></li><li><p>take the test / pass the test / fail a test(参加考试/通过考试/考试不及格)</p></li><li><p>talk back(顶嘴)</p></li></ul><p>许多一线教师反馈,学生通过理解“情态动词+被动语态”结构,能更准确地表达社会规则、家庭规范等话题,这在口语和写作中都非常实用。</p>
<h2>4. 实战应用与常见误区
</h2><p><strong>典型错误纠正</strong>:</p>
<ul><li><p>错误:Teenagers should be allow to choose...</p></li><li><p>正确:Teenagers <strong>should be allowed</strong>? to choose... ??牢记结构中的 <strong>be</strong>? 和 <strong>过去分词</strong>? 缺一不可。</p></li></ul><p><strong>中考链接</strong>:</p>
<p>含有情态动词的被动语态是中考单选题、句型转换和书面表达的常见考点。例如,完成句子题可能考查:"应该允许青少年自己选择衣服。" 对应英文应为:"Teenagers <strong>should be allowed to choose</strong>? their own clothes."</p>
<p>系统掌握人教版九年级英语第七单元的知识点,关键在于理解语法规则背后的逻辑,并结合大量例句进行实践。含有情态动词的被动语态是中考的重要考点,建议通过造句、翻译和情景对话加以巩固。</p>
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