基础英语讲座【21】
<p> 【<span word="Behind">Behind</span> <span word="the">the</span> <span word="house">house</span> <span word="there">there</span> <span word="is">is</span> <span word="a">a</span> <span word="river">river</span>.】</p><p> <span word="Behind">Behind</span> <span word="the">the</span> <span word="house">house</span> <span word="there">there</span> <span word="is">is</span> <span word="a">a</span> <span word="tree">tree</span>.房子的后面有一棵树。句中的地点状语移到了句首，起强调作用。例如：</p><p> <span word="Behind">Behind</span> <span word="the">the</span> <span word="door">door</span> <span word="there">there</span> <span word="is">is</span> <span word="a">a</span> <span word="broom">broom</span>.</p><p> 门的后面有一把扫帚。</p><p> <span word="In">In</span> <span word="the">the</span> <span word="classroom">classroom</span> <span word="there">there</span> <span word="is">is</span> <span word="no">no</span> <span word="students">students</span> <span word="now">now</span>.</p><p> 现在教室时里没有学生。</p><p> 【<span word="Is">Is</span> <span word="there">there</span> <span word="a">a</span> <span word="cat">cat</span> <span word="in">in</span> <span word="the">the</span> <span word="tree">tree</span>?】</p><p> <span word="Is">Is</span> <span word="there">there</span> <span word="a">a</span> <span word="cat">cat</span> <span word="in">in</span> <span word="the">the</span> <span word="tree">tree</span>?树上有猫吗?</p><p> 这是<span word="there">there</span> <span word="is">is</span> .的疑问句型。句是的<span word="is">is</span> 提前，构成疑问句。例如：</p><p> <span word="Is">Is</span> <span word="there">there</span> <span word="a">a</span> <span word="book">book</span> <span word="on">on</span> <span word="the">the</span> <span word="desk">desk</span>?</p><p> 桌子上有书吗？</p><p> <span word="Are">Are</span> <span word="there">there</span> <span word="any">any</span> <span word="trees">trees</span> <span word="in">in</span> <span word="the">the</span> <span word="picture">picture</span>?</p><p> 照片上有树吗？</p><p> 【<span word="There">There</span> <span word="is">is</span> 的句型总结：】</p><p> 肯定形式<span word="There">There</span> <span word="is">is</span>（<span word="are">are</span>）.<span word="There">There</span> <span word="is">is</span>后面跟单数名词，<span word="There">There</span> <span word="are">are</span>后面跟复数名词，例如：</p><p> <span word="There">There</span> <span word="is">is</span> <span word="book">book</span> <span word="on">on</span> <span word="the">the</span> <span word="desk">desk</span>.</p><p> 桌子上有一本书。</p><p> <span word="There">There</span> <span word="are">are</span> <span word="some">some</span> <span word="boxes">boxes</span> <span word="in">in</span> <span word="the">the</span> <span word="room">room</span>.</p><p> 房间里有一些箱子。</p><p> 否定形式<span word="There">There</span> <span word="is">is</span> （<span word="are">are</span>）<span word="not">not</span> .否定形式是在系动词后面加<span word="not">not</span>.表示没有。例如：</p><p> <span word="There">There</span> <span word="is">is</span> <span word="not">not</span> <span word="a">a</span> <span word="egg">egg</span> <span word="in">in</span> <span word="it">it</span>.</p><p> 里边没有鸡蛋。</p><p> <span word="There">There</span> <span word="are">are</span> <span word="not">not</span> <span word="many">many</span> <span word="trees">trees</span> <span word="before">before</span> <span word="our">our</span> <span word="classroom">classroom</span>.</p>
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