初中数学动点问题｜LOFTER（乐乎）

LOFTER for ipad —— 让兴趣，更有趣

点击下载关闭

初中数学动点问题

参与话题

164浏览 1参与

打开新页

东华关注

生活摄影

热度(0)评论查看全文转载分享推荐喜欢

打开新页

dysz_2009 关注

本公众号专门为初中数学老师以及初中各年级学生提供利用“几何画板”软件研究初中数学动态问题，关注各地中考数学最新动态，精选其中一些典型的数学问题进行适当改变，增强试题功能，其中还有很多原创试题的讲解。

中考数学试题精讲几何画板初中数学动点问题八年级数学九年级数学

热度(7)转载分享推荐喜欢

LOFTER，

让兴趣，更有趣

简单随性的记录
丰富多彩的内容
让生活更加充实

开通LOFTER

下载移动端

关注最新消息

回到顶部

想用@提到谁？

<div class="m-mlist">
    <div class="mlistimg ${xtag}">
        <div class="w-img" style="z-index:1;">
            <a href="#" target="_blank"><img class="${xtag}"></a>
            <div class="w-img w-img-1"><a href="#" target="_blank"><img class="${xtag}"/></a></div>
            <a class="vicon" style="display:none"></a>
        </div>
        <div class="w-img" style="height:0px;padding:0;z-index:10;">
            <div class="a-w-sel a-w-sel-7">
                <div class="w-sel w-sel-7 ${xtag}" style="margin-top:-148px;display:none;">
                    <div class="selc">
                        <div class="selcc">
                            <div class="seli"><a class="sela selicn sellike" href="#">喜欢的文章</a></div>
                            <div class="seli"><a class="sela selicn selfollow" href="#">关注的博客</a></div>
                            <div class="seli"><a class="sela selicn sel1" href="#" target="_blank">发私信</a></div>
                            <div class="seli"><a class="sela selicn sel2" href="#">取消关注</a></div>
                        </div>
                    </div>
                </div>
            </div>
        </div>
    </div>
    <div class="mlistimg ${xtag}">
        <div class="w-img w-img-2 ${xtag}">
            <div class="time ${xtag}">
                <strong></strong>
            </div>
        </div>
    </div>
    <div class="mlistcnt">
        <div class="isay">
            <div class="isayt">
                <a class="isayc ${xtag}" href="#" title="查看全文" target="_blank">打开新页</a><span class="isayc ${xtag}" style="display:none;"></span>
            </div>
            <div class="isaym">
                <div class="w-who"><a href="#" class="publishernick ${xtag}" target="_blank">hisname</a>
                    <a href="javascript:void(0);" class="${xtag}" style="display: none">该抢先看文章已解锁免费看</a>
                    <a href="#" class="${xtag} w-icn2 w-icn2-3 a-followicon">关注</a><div class="unpromote">-<a href="javascript:"><span class="nocare-hvlayer"></span></a></div><span class="whosep ${xtag}">转载自</span><a href="#" class="${xtag}" target="_blank">hername</a><a href="#" class="${xtag} w-icn2 w-icn2-3 a-followicon">关注</a><span class="whosep ${xtag}" style="display:none;">来源</span><a href="#" class="${xtag}" style="display:none;" target="_blank"></a><a href="#" class="${xtag} w-icn2 w-icn2-3 a-followicon">关注</a><div style="" class="${xtag}">（仅自己可见）</div>
                    <span class="whosep ${xtag}" style="display:none;">- 推荐者 <a href="#" class="${xtag}" target="_blank">hername</a>
                        <a title="" href="javascript:void(0)"><span class="${xtag} shieldSharerBtn"></span></a>
                    </span><span class="whosep ${xtag}" style="display:none;">- LOFTER推荐</span>
                    <div class="oprt ${xtag}" style="display:none;"><span><a href="#" class="${xtag}">屏蔽</a></span><span><a href="#" class="${xtag}">过滤</a></span><span style="display:none;"><a href="#" class="${xtag} degrade" title="( 谱1 | 精1 | 降1 | 滤1 )">2.1</a></span><span><a href="#" class="${xtag}">不推</a></span><span><a href="#" target="_blank" class="w-img2 w-img2-3"><img class="${xtag}"></a><a href="#" class="${xtag}">去精</a></span></div>
                    <div class="select-post-mark ${xtag} f-cb" style="display:none;"><span class="select-mark f-fl"></span><span class="${xtag} f-fl">置顶文章</span></div>
                </div>

<div class="w-who"><a href="#" class="${xtag}" target="_blank">hisname</a>
                    <span class="whosep ${xtag}">转载自</span><a href="#" class="${xtag}" target="_blank">hername</a>
                    <span class="whosep ${xtag}" style="display:none;">来源</span><a href="#" class="${xtag}" style="display:none;" target="_blank"></a>
                    <span style="" class="whosep ${xtag}">（仅自己可见）</span>
                    <span class="whosep ${xtag}" style="display:none;">
                        - 推荐者 <a href="#" class="${xtag}" target="_blank">hername</a>
                    </span></div>

<ul>
        {list posts as post}
            {if post.type==1 || post.type == 5}
                <li class="article article-txt">
                    <div class="fullnk" data-blogid="${post.blogId}" data-postid="${post.postId}">
                        <div class="text">
                            {if !!post.title}<strong class="ttl">${post.title|escape}</strong>{/if}
                            {if !!post.digest}<div class="desc">${post.digest}</div>{/if}
                        </div>
                        <a onclick="if(!!window.doArticleStatistic){doArticleStatistic('${post.permalink}')}" href="${url}/post/${post.permalink}?act=qbcnxh_20150804_04" target="_blank" class="layer" style="left:0; top:0;"></a>
                    </div>
                </li>
            {/if}
            {if post.type==2}
            <li class="article article-img">
                <a class="fullnk" href="${url}/post/${post.permalink}?act=qbcnxh_20150804_04" target="_blank" data-blogid="${post.blogId}" data-postid="${post.postId}">
                    <span class="pic" style="background:url(${post.image|default:''}) center center no-repeat;" {if !!post.title} title="${post.title}"{/if}></span>
                    <span class="layer"></span>
                </a>
            </li>
            {/if}
            {if post.type == 3}
                    {if !!post.image}
                        <li class="article article-audio">
                            <a class="fullnk" href="${url}/post/${post.permalink}?act=qbcnxh_20150804_04" target="_blank" data-blogid="${post.blogId}" data-postid="${post.postId}">
                                <span class="pic" style="background:url(${post.image|default:''}) center center no-repeat;" {if !!post.title} title="${post.title}"{/if}></span>
                                <span class="cover"></span>
                                <span class="layer"></span>
                            </a>
                        </li>
                    {else}
                        <li class="article article-audio">
                            <a class="fullnk" href="${url}/post/${post.permalink}?act=qbcnxh_20150804_04" data-blogid="${post.blogId}" data-postid="${post.postId}">
                                <span class="pic">
                                    <span class="img"> </span>
                                </span>
                                <span class="cover"></span>
                                <span class="layer"></span>
                            </a>
                        </li>
                    {/if}
                {/if}
            {if post.type == 4}
                {if !!post.image}
                    <li class="article article-video">
                        <a class="fullnk" href="${url}/post/${post.permalink}?act=qbcnxh_20150804_04" target="_blank" data-blogid="${post.blogId}" data-postid="${post.postId}">
                            <span class="pic">
                                <img src="${post.image}"{if !!post.title} alt="${post.title}" title="${post.title}"{/if}/>
                            </span>
                            <span class="cover"></span>
                            <span class="layer"></span>
                        </a>
                    </li>
                {else}
                    <li class="article article-video">
                        <a class="fullnk" href="${url}/post/${post.permalink}?act=qbcnxh_20150804_04" data-blogid="${post.blogId}" data-postid="${post.postId}">
                            <span class="pic">
                                <span class="img"> </span>
                            </span>
                            <span class="cover"></span>
                            <span class="layer"></span>
                        </a>
                    </li>
                {/if}
            {/if}
        {/list}
    </ul>

{if !!photo.labels && photo.labels.length>0}
                    {var wrapwidth = photo.ow < 500?photo.ow:500}
                    <div class="m-labelswrap" style="width:${wrapwidth}px">
                      {list photo.labels as labs}
                      {var lbtxtwidth = Math.floor(wrapwidth*(labs.ort==1?labs.x:(100-labs.x))/100)-62}
                      {if lbtxtwidth>12}
                      <div class="w-labels {if labs.ort==1}w-labels-right{else}w-labels-left{/if}" style="{if labs.ort==1}right:${100-labs.x}%;top:${labs.y}%{else}left:${labs.x}%;top:${labs.y}%{/if}">
                        {if !!labs.icon}
                        <img class="lbimg" src="${labs.icon}" />
                        <div class="lbwrap">
                            <a class="lbtagtxt f-thide" style="max-width:${lbtxtwidth}px" href="//www.lofter.com/tag/${labs.text|escape}" target="_blank">${labs.text|escape}</a>
                        </div>
                        {else}
                        <div class="lbwrap lbwrap-noimg">
                            <a class="lbtagtxt f-thide" style="max-width:${lbtxtwidth+28}px" href="//www.lofter.com/tag/${labs.text|escape}" target="_blank">${labs.text|escape}</a>
                        </div>
                        {/if}
                      </div>
                      {/if}
                      {/list}
                      <img class="wrapbg" src="//l.bst.126.net/rsc/img/common/empty.png">
                    </div>
                    {/if}

{list photos as photo}
            <div class="imgc">
                <a href="#" hidefocus="true">
                    <img width="{if photo.ow < 145}${photo.ow|escape}{else}164{/if}" src="${httpImgConvertToHttps(photo.middle)|escape}">
                    <span class="total">
                        <span class="totalbg"></span><span class="totalnum">${photos.length||2}</span>
                    </span>
                </a>
            </div>
            {if photo_index==0}{break}{/if}
        {/list}
        <ol style="display:none;">
        {list photos as photo}
            <li>
                <div class="imgc">
                    <a href="#" hidefocus="true"><img width="{if photo.ow < 500}${photo.ow|escape}{else}500{/if}" large="${httpImgConvertToHttps(photo.orign)|escape}" {if !!iself}src="${httpImgConvertToHttps(photo.middle)|escape}"{else}imgsrc="${httpImgConvertToHttps(photo.middle)|escape}"{/if}>
                        {if !!expand}
                        <span class="total">
                            <span class="totalbg"></span><span class="totalnum">${photos.length||2}</span>
                        </span>
                        {/if}
                    </a>
                  {if !!photo.labels && photo.labels.length>0}
                    {var wrapwidth = photo.ow < 500?photo.ow:500}
                    <div class="m-labelswrap" style="width:${wrapwidth}px">
                      {list photo.labels as labs}
                      {var lbtxtwidth = Math.floor(wrapwidth*(labs.ort==1?labs.x:(100-labs.x))/100)-62}
                      {if lbtxtwidth>12}
                      <div class="w-labels {if labs.ort==1}w-labels-right{else}w-labels-left{/if}" style="{if labs.ort==1}right:${100-labs.x}%;top:${labs.y}%{else}left:${labs.x}%;top:${labs.y}%{/if}">
                        {if !!labs.icon}
                        <img class="lbimg" src="${labs.icon}" />
                        <div class="lbwrap">
                            <a class="lbtagtxt f-thide" style="max-width:${lbtxtwidth}px" href="//www.lofter.com/tag/${labs.text|escape}" target="_blank">${labs.text|escape}</a>
                        </div>
                        {else}
                        <div class="lbwrap lbwrap-noimg">
                            <a class="lbtagtxt f-thide" style="max-width:${lbtxtwidth+28}px" href="//www.lofter.com/tag/${labs.text|escape}" target="_blank">${labs.text|escape}</a>
                        </div>
                        {/if}
                      </div>
                      {/if}
                      {/list}
                      <img class="wrapbg" src="//l.bst.126.net/rsc/img/common/empty.png">
                    </div>
                    {/if}
                </div>
                <div class="more more-2" {if photo.ow <= 500}style="display:none;"{/if}>
                    <a class="w-zoom" onclick="loft.x.stopEvent(event);loft.m.g.mp${gid}.photoshow(${photo_index});return false;">查看大图</a>
                </div>
                {if !expand}<p>${spescape(captions[photo_index])}</p>{/if}
             </li>
             {if !!expand}{break}{/if}
        {/list}
        </ol>

<div class="m-icnt m-icnt-askanswer">
      <div class="answerItem">
        <div class="answernick"><a class="${xtag}" hidefocus="true" target="_blank" href="#"></a><span class="answertip"> <span class="answertypetxt ${xtag}"></span></span></div>
        <div class="askarea">
            <div class="question"><div class="qcnt ${xtag}"></div><em class="f-askicon arrow"> </em></div>
            <div class="asker">
                <div style="display:none" class="realnameask">
                    <a target="_blank" href="#"><img class="${xtag}" /></a>
                    <a class="f-thide askernick ${xtag}" target="_blank" href="#"></a>
                </div>
                <div class="anonyask">
                    <img class="${xtag}" />
                    <span class="f-thide askernick ${xtag}"></span>
                </div>
            </div>
        </div>
        <div class="cnt">
            <div class="img"><a href="#" hidefocus="true"><img width="164" class="${xtag}"></a></div>
            <div class="txt ${xtag}">
                <p></p>
            </div>
        </div>
        <div class="more" style="display:none;"><a class="w-more w-more-open ${xtag}" href="#">展开</a></div>
        <div style="display:none" class="askagain"><a class="${xtag}" hidefocus="true" target="_blank" href="#"><span class="againtxt ${xtag}"></span><em style="display:none" class="icon24"> </em></a></div>
        <div class="clearfix opbar">
            <a class="${xtag}" hidefocus="true" href="#">删除</a>
        </div>
      </div>
      <div class="askItem">
        <div class="asknick"><a class="${xtag}" hidefocus="true" target="_blank" href="#"></a><span class="asktip"><em class="nicksep"> </em>提问</span></div>
         <div class="cnt">
             <div class="txt ${xtag}"></div>
         </div>
         <div class="clearfix opbar">
             <a class="addblack ${xtag}" hidefocus="true" target="_blank" href="#">加黑</a>
             <a class="${xtag}" hidefocus="true" target="_blank" href="#">删除</a>
             <a class="${xtag}" hidefocus="true" target="_blank" href="#">仅回答</a>
             <a class="${xtag}" hidefocus="true" target="_blank" href="#">回答并发布</a>
         </div>
      </div>
    </div>

<div class="a-w-sel a-w-sel-7 a-w-sel-do usercard">
	    <div class="w-sel w-sel-7">
	    	<div id="ucarrow" class="arrow arrow-${arrow}"></div>
		    <div class="selc">
	            <div class="selcc selcc-1" id="selcc-1">
	       		    <div class="seli seli-glist2">
	                    <div class="m-glist2">
		                    <div class="w-img2 w-img2-1"><a onclick="window['_gaq'].push(['_trackEvent', '个人名片', '头像点击']);" target="_blank" href="https://${data.blogname}.lofter.com/"><img src="${httpImgConvertToHttps(data.avaImg|default:'https://l.bst.126.net/rsc/img/ava/64.png')}"><em class="vicon {if !!viconclass}${viconclass}{/if}"></em></a></div>
	                        <div class="bloginfo">
	    	                    <a onclick="window['_gaq'].push(['_trackEvent', '个人名片', '昵称点击']);" style="display:inline-block;width:210px;" target="_blank" href="https://${data.blogname}.lofter.com/" class="name f-thide">${data.name|escape}</a>
	                            <div class="subinfo"><a onclick="drawStatisticImg('qbgrmp_20150416_01');window['_gaq'].push(['_trackEvent', '个人名片', '文章xxx点击']);" {if !data.publicPostCount || data.publicPostCount<0}style="display:none"{/if} href="https://${data.blogname}.lofter.com/" target="_blank">文章 ${data.publicPostCount}</a><a onclick="drawStatisticImg('qbgrmp_20150416_02');window['_gaq'].push(['_trackEvent', '个人名片', '喜欢xxx点击']);" {if !data.FavoritePostCount || issubblog || data.FavoritePostCount<0}style="display:none"{/if} href="//www.lofter.com/favblog/${data.blogname}" target="_blank">喜欢 ${data.FavoritePostCount}</a><a onclick="drawStatisticImg('qbgrmp_20150416_03');window['_gaq'].push(['_trackEvent', '个人名片', '关注xxx点击']);" {if !data.followerCount || issubblog || data.followerCount<0}style="display:none"{/if} href="//www.lofter.com/explore?type=follow&bid=${blogid}" target="_blank">关注 ${data.followerCount}</a></div>
	                        </div>
	                        <div class="blogmenu">
                                <div class="menu"{if rankNum == 0} style="display:none;"{/if}>
                                    <a class="menubtn ftag" href="javascript:void(0)"></a>
                                    <div class="menulist ftag" style="display:none;top:50px;opacity:0;">
                                        <div class="arrow"></div>
                                        <ul>
                                            {if data.msgRank == 1}<li><a id="ucmsg" onclick="drawStatisticImg('qbgrmp_20150416_04');" target="_blank" href="{if !!isLogin}https://www.lofter.com/message/${data.blogname}/{else}https://www.lofter.com/front/login?target=https://www.lofter.com/message/${data.blogname}/{/if}">私信</a></li>{/if}
                                            <li><a id="ucblack" href="#">{if !!data.inBlackList}取消加黑{else}加黑{/if}</a></li>
											<li style="{if data.shieldRecomCode==0}display:none{/if}"><a id="ucShield" href="#">
                                                {if data.shieldRecomCode==1}恢复查看推荐{/if}
												{if data.shieldRecomCode==2}不看推荐内容{/if}
											</a></li>
                                        </ul>
                                    </div>
                                </div>
                                <div class="followbtn">
                                    <a class="u-btn2 ftag" style="display:none;" href="#"><span>已关注</span></a>
		                        	<a class="u-btn u-btn-1 ftag" style="display:none;" href="#"><b>+</b><span>关注</span></a>
		                        </div>
                            </div>
	                    </div>
	                </div>
	                <div class="seli seli-goodcnt">
	                    <ul class="m-goodcnt m-goodcnt-4">
	                        <li>
	                        {if defined('posts')&&posts.length>0}
				          	{list posts as post}
	                        	<div class="itm">
			          				{if post_index < 3}
			          					{if post.type == 1 || post.type == 5}
		          							<div class="txt">
		          								{if !!post.title}<h3>${post.title|escape}</h3>{/if}
		          								{if !!post.digest}${post.digest}{/if}
		          							</div>
		          							<a onclick="window['_gaq'].push(['_trackEvent', '个人名片', '文章缩略区域点击']);" target="_blank" href="${post.blogPageUrl}" class="textlink"></a>
						          		{/if}
						          		{if post.type == 2}
						          			<a onclick="window['_gaq'].push(['_trackEvent', '个人名片', '文章缩略区域点击']);" target="_blank" href="${post.blogPageUrl}">
						          				<img src="${post.showimages}" style="visibility:hidden;" onload="this.style.visibility = 'visible'">
						          				<span class="icover"></span>
						          			</a>
						          		{/if}
						          		{if post.type == 3}
						          			<a onclick="window['_gaq'].push(['_trackEvent', '个人名片', '文章缩略区域点击']);" target="_blank" href="${post.blogPageUrl}">
						          				{if !!post.showimages}<img src="${post.showimages}" style="visibility:hidden;" onload="this.style.visibility = 'visible'">{/if}
						          				<span class="icover"></span>
						          				<span class="w-type"></span>
						          			</a>
						          		{/if}
						          		{if post.type == 4}
						          			<a onclick="window['_gaq'].push(['_trackEvent', '个人名片', '文章缩略区域点击']);" target="_blank" href="${post.blogPageUrl}">
						          				{if !!post.showimages}<img src="${post.showimages}" style="visibility:hidden;" onload="this.style.visibility = 'visible'">{/if}
						          				<span class="icover"></span>
						          				<span class="w-type w-type-1"></span>
						          			</a>
						          		{/if}
						          		{if post.type == 6}
						          			<a onclick="window['_gaq'].push(['_trackEvent', '个人名片', '文章缩略区域点击']);" target="_blank" href="${post.blogPageUrl}">
						          				<img src="${post.showimages}" style="visibility:hidden;" onload="this.style.visibility = 'visible'">
						          				<span class="icover"></span>
						          				<span class="long-flag"></span>
						          			</a>
						          		{/if}
			          				{/if}
				          		</div>
				          	{/list}
				          	{else}
				          	<div class="nopost">暂无文章</div>
				          	{/if}
	                        </li>
	                    </ul>
	                </div>
	                <div class="seli">
	                	<div class="m-daren">
	                	{if drlist.length>0}
	                		<span class="moredr">更多相似达人：</span>
	                		{list drlist as dr}<a class="ftag" href="https://${dr.blogName}.lofter.com/?from=usercard" target="_blank" onclick="similarBlogClick(${dr.blogId},'${dr.algInfo|default:''}','${dr.recId|default:''}');drawStatisticImg('qbxsdr_20150810_02');">${subStr(dr.blogNickName,14,true)|escape}</a>{if drlist.length === 3 && dr_index === 0}、{/if}{if drlist.length === 3 && dr_index === 1}、{/if}{if drlist.length === 2 && dr_index === 0}、{/if}{/list}
	                	{else}
	                		<span class="nomore">暂无相似达人，</span><a href="//www.lofter.com/explore/?type=recommend" target="_blank" onclick="drawStatisticImg('qbxsdr_20150814_02')">发现更多>></a>
	                	{/if}
	                	</div>
	                </div>
	            </div>
	        </div>
	    </div>
	</div>

{if defined('posts')&&posts.length>0}
      	{list posts as post}
        	<div class="itm tctag">
  				{if post_index < 3}
  					{if post.type == 1 || post.type == 5}
						<div class="txt">
							{if !!post.title}<h3>${post.title|escape}</h3>{/if}
							{if !!post.digest}${post.digest}{/if}
						</div>
						<a onclick="window['_gaq'].push(['_trackEvent', '标签名片', '标签名片缩略图点击']);" target="_blank" href="${post.tagUrl}" class="textlink"></a>
	          		{/if}
	          		{if post.type == 2}
	          			<a onclick="window['_gaq'].push(['_trackEvent', '标签名片', '标签名片缩略图点击']);" target="_blank" href="${post.tagUrl}">
	          				<img src="${post.showimages}" style="visibility:hidden;" onload="this.style.visibility = 'visible'">
	          				<span class="icover"></span>
	          			</a>
	          		{/if}
	          		{if post.type == 3}
	          			<a onclick="window['_gaq'].push(['_trackEvent', '标签名片', '标签名片缩略图点击']);" target="_blank" href="${post.tagUrl}">
	          				{if !!post.showimages}<img src="${post.showimages}" style="visibility:hidden;" onload="this.style.visibility = 'visible'">{/if}
	          				<span class="icover"></span>
	          				<span class="w-type"></span>
	          			</a>
	          		{/if}
	          		{if post.type == 4}
	          			<a onclick="window['_gaq'].push(['_trackEvent', '标签名片', '标签名片缩略图点击']);" target="_blank" href="${post.tagUrl}">
	          				{if !!post.showimages}<img src="${post.showimages}" style="visibility:hidden;" onload="this.style.visibility = 'visible'">{/if}
	          				<span class="icover"></span>
	          				<span class="w-type w-type-1"></span>
	          			</a>
	          		{/if}
	          		{if post.type == 6}
	          			<a onclick="window['_gaq'].push(['_trackEvent', '标签名片', '标签名片缩略图点击']);" target="_blank" href="${post.tagUrl}">
	          				<img src="${post.showimages}" style="visibility:hidden;" onload="this.style.visibility = 'visible'">
	          				<span class="icover"></span>
	          				<span class="long-flag"></span>
	          			</a>
	          		{/if}
  				{/if}
      		</div>
      	{/list}
  	{else}
  		<div class="nopost tctag">暂无文章</div>
  	{/if}

LOFTER-网易轻博

初中数学动点问题