初中英语语法精挑细讲之句子的种类
<p> 句子的种类</p><p> 1．英语中按使用目的或功用分为四类：陈述句、疑问句、祈使句、感叹句。</p><p> <span word="A">A</span>．陈述句。</p><p> ○1 陈述句说明一个事实或陈述一个人的看法。陈述句分为肯定陈述句和否定陈述句两种。</p><p> <span word="a">a</span>．陈述句的肯定式。<span word="I">I</span> <span word="have">have</span> <span word="already">already</span> <span word="posted">posted</span> <span word="the">the</span> <span word="photos">photos</span>. / <span word="They">They</span> <span word="are">are</span> <span word="students">students</span>. / <span word="I">I</span> <span word="must">must</span> <span word="go">go</span> <span word="now">now</span> . / <span word="He">He</span> <span word="was">was</span> <span word="reading">reading</span> <span word="a">a</span> <span word="book">book</span> <span word="at">at</span> 8:00 <span word="last">last</span> <span word="night">night</span>.</p><p> <span word="b">b</span>．陈述句的否定形式。</p><p> 谓语动词是系动词<span word="be">be</span>, 助动词<span word="have">have</span>, <span word="will">will</span>, <span word="shall">shall</span>, <span word="be">be</span>或情态动词，只须在其后面加<span word="not">not</span>构成否定句。</p><p> <span word="She">She</span> <span word="isnt">isnt</span> <span word="a">a</span> <span word="student">student</span> . / <span word="He">He</span> <span word="hasnt">hasnt</span> <span word="been">been</span> <span word="to">to</span> <span word="the">the</span> <span word="Great">Great</span> <span word="Wall">Wall</span> . / <span word="I">I</span> <span word="can">can</span> <span word="not">not</span> <span word="swim">swim</span> . / <span word="You">You</span> <span word="will">will</span> <span word="not">not</span> <span word="go">go</span> <span word="there">there</span> <span word="tomorrow">tomorrow</span>. / <span word="They">They</span> <span word="arent">arent</span> <span word="sleeping">sleeping</span> .</p><p> 若谓语动词是实义动词，在实义动词前加上<span word="do">do</span> <span word="not">not</span>，第三人称单数现在时用<span word="does">does</span> <span word="not">not</span>，过去时用<span word="did">did</span> <span word="not">not</span>。</p><p> <span word="He">He</span> <span word="didnt">didnt</span> <span word="send">send</span> <span word="me">me</span> <span word="an">an</span> <span word="invitation">invitation</span> .</p><p> 由具有否定含义的词<span word="never">never</span>, <span word="nobody">nobody</span>, <span word="hardly">hardly</span>, <span word="little">little</span>, <span word="dislike">dislike</span>, <span word="seldom">seldom</span>, <span word="few">few</span>, <span word="tooto">tooto</span>等构成的否定句。</p><p> <span word="Not">Not</span> <span word="all">all</span> <span word="the">the</span> <span word="books">books</span> <span word="in">in</span> <span word="our">our</span> <span word="school">school</span> <span word="library">library</span> <span word="can">can</span> <span word="be">be</span> <span word="renewed">renewed</span> .</p><p> <span word="B">B</span>. 疑问句。</p><p> ○1 疑问句提出问题。英语中有四种疑问句：一般疑问句、特殊疑问句、选择疑问句和反意疑问句。</p><p> <span word="a">a</span>．一般疑问句：以一个助动词、情态动词、动词<span word="be">be</span>或<span word="have">have</span>开始，语调为升调，通常要求以<span word="yes">yes</span>或<span word="no">no</span>回答的疑问句。</p>
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