发球技术

<p style="Z-INDEX: 15; LINE-HEIGHT: 123px; WIDTH: 2449px; LETTER-SPACING: 6px; HEIGHT: 123px; TOP: 2524px; LEFT: 1478px" class="reader-word-layer reader-word-s1-6">乒乓球发球技术是乒乓球技术中唯一不受对</p>
<p style="Z-INDEX: 16; LINE-HEIGHT: 123px; WIDTH: 492px; HEIGHT: 123px; TOP: 2738px; LEFT: 1232px" class="reader-word-layer reader-word-s1-6">方制约、</p>
<p style="Z-INDEX: 17; LINE-HEIGHT: 123px; WIDTH: 1108px; HEIGHT: 123px; TOP: 2738px; LEFT: 1687px" class="reader-word-layer reader-word-s1-6">主动性极强的技术，</p>
<p style="Z-INDEX: 18; LINE-HEIGHT: 123px; WIDTH: 1232px; HEIGHT: 123px; TOP: 2738px; LEFT: 2758px" class="reader-word-layer reader-word-s1-6">是一场球比赛的开始，</p>
<p style="Z-INDEX: 19; LINE-HEIGHT: 123px; WIDTH: 2710px; HEIGHT: 123px; TOP: 2951px; LEFT: 1232px" class="reader-word-layer reader-word-s1-6">也是比赛中每一得分的开始，一个高质量的发球，</p>
<p style="Z-INDEX: 20; LINE-HEIGHT: 123px; WIDTH: 2710px; HEIGHT: 123px; TOP: 3165px; LEFT: 1232px" class="reader-word-layer reader-word-s1-6">可以起到先发制人的作用。然而，因为发球吃分，</p>
<p style="Z-INDEX: 21; LINE-HEIGHT: 123px; WIDTH: 2710px; HEIGHT: 123px; TOP: 3378px; LEFT: 1232px" class="reader-word-layer reader-word-s1-6">使得比赛的观赏性降低，引不起激烈的比赛争夺，</p>
<p style="Z-INDEX: 22; LINE-HEIGHT: 123px; WIDTH: 2710px; HEIGHT: 123px; TOP: 3592px; LEFT: 1232px" class="reader-word-layer reader-word-s1-6">国际“乒联”为了降低发球的“隐蔽性、突然性、</p>
<p style="Z-INDEX: 23; LINE-HEIGHT: 123px; WIDTH: 497px; LETTER-SPACING: 1px; HEIGHT: 123px; TOP: 3806px; LEFT: 1232px" class="reader-word-layer reader-word-s1-6">威胁性”</p>
<p style="Z-INDEX: 24; LINE-HEIGHT: 123px; WIDTH: 2255px; LETTER-SPACING: 2px; HEIGHT: 123px; TOP: 3806px; LEFT: 1670px" class="reader-word-layer reader-word-s1-6">，发球规则不断修改和变化，以求最大限</p>
<p style="Z-INDEX: 25; LINE-HEIGHT: 123px; WIDTH: 1735px; LETTER-SPACING: 0px; HEIGHT: 123px; TOP: 4020px; LEFT: 1232px" class="reader-word-layer reader-word-s1-6">度地降低发球给对方造成的威胁</p>
<p style="Z-INDEX: 26; LINE-HEIGHT: 123px; WIDTH: 62px; LETTER-SPACING: 0px; HEIGHT: 123px; TOP: 4020px; LEFT: 2969px" class="reader-word-layer reader-word-s1-3">, </p>
<p style="Z-INDEX: 27; LINE-HEIGHT: 123px; WIDTH: 865px; LETTER-SPACING: 0px; HEIGHT: 123px; TOP: 4020px; LEFT: 3062px" class="reader-word-layer reader-word-s1-6">使比赛更具观赏</p>
<p style="Z-INDEX: 28; LINE-HEIGHT: 123px; WIDTH: 2697px; HEIGHT: 123px; TOP: 4233px; LEFT: 1232px" class="reader-word-layer reader-word-s1-7">性，以此推动乒乓球运动的发展。国际乒联将发球</p>
<p style="Z-INDEX: 29; LINE-HEIGHT: 123px; WIDTH: 2691px; HEIGHT: 123px; TOP: 4447px; LEFT: 1232px" class="reader-word-layer reader-word-s1-8">规则不断改进，使发球技术受到了前所未有的限</p>
<p style="Z-INDEX: 30; LINE-HEIGHT: 123px; WIDTH: 2695px; LETTER-SPACING: 0px; HEIGHT: 123px; TOP: 4660px; LEFT: 1232px" class="reader-word-layer reader-word-s1-6">制，把发球的威胁降到了最低。因此，发球技术更</p>
<p style="Z-INDEX: 31; LINE-HEIGHT: 123px; WIDTH: 1355px; HEIGHT: 123px; TOP: 4874px; LEFT: 1232px" class="reader-word-layer reader-word-s1-6">期待有新的研究和突破。</p>
<p style="Z-INDEX: 32; LINE-HEIGHT: 123px; WIDTH: 30px; FONT-FAMILY: simsun; HEIGHT: 123px; TOP: 4874px; LEFT: 2588px" class="reader-word-layer reader-word-s1-3"></p>
<p style="Z-INDEX: 33; LINE-HEIGHT: 132px; WIDTH: 93px; HEIGHT: 132px; TOP: 5087px; LEFT: 1478px" class="reader-word-layer reader-word-s1-9">1 </p>
<p style="Z-INDEX: 34; LINE-HEIGHT: 132px; WIDTH: 2320px; LETTER-SPACING: 6px; HEIGHT: 132px; TOP: 5087px; LEFT: 1608px" class="reader-word-layer reader-word-s1-6">提高发球质量的要素从发球规则的演变对</p>
<p style="Z-INDEX: 35; LINE-HEIGHT: 123px; WIDTH: 2697px; HEIGHT: 123px; TOP: 5301px; LEFT: 1232px" class="reader-word-layer reader-word-s1-7">发球技术提出了更高的挑战，因此在做到让对方即</p>
<p style="Z-INDEX: 36; LINE-HEIGHT: 123px; WIDTH: 2710px; HEIGHT: 123px; TOP: 5515px; LEFT: 1232px" class="reader-word-layer reader-word-s1-6">使能看清球的旋转，也照样“吃”发球的前提下，</p>
<p style="Z-INDEX: 37; LINE-HEIGHT: 123px; WIDTH: 2691px; HEIGHT: 123px; TOP: 5728px; LEFT: 1232px" class="reader-word-layer reader-word-s1-8">就必须增强发球内在的技术质量，提高发球的速</p>
<p style="Z-INDEX: 38; LINE-HEIGHT: 123px; WIDTH: 1848px; HEIGHT: 123px; TOP: 5942px; LEFT: 1232px" class="reader-word-layer reader-word-s1-6">度，增强其旋转和变换其落点等。</p>
<p style="Z-INDEX: 39; LINE-HEIGHT: 123px; WIDTH: 30px; FONT-FAMILY: simsun; HEIGHT: 123px; TOP: 5942px; LEFT: 3081px" class="reader-word-layer reader-word-s1-3"></p>
<p style="Z-INDEX: 40; LINE-HEIGHT: 132px; WIDTH: 186px; HEIGHT: 132px; TOP: 6156px; LEFT: 1478px" class="reader-word-layer reader-word-s1-10">1.1 </p>
<p style="Z-INDEX: 41; LINE-HEIGHT: 132px; WIDTH: 2234px; HEIGHT: 132px; TOP: 6156px; LEFT: 1695px" class="reader-word-layer reader-word-s1-11">提高球的速度。发球时，球速的快慢与球</p>
<p style="Z-INDEX: 42; LINE-HEIGHT: 123px; WIDTH: 2697px; HEIGHT: 123px; TOP: 6369px; LEFT: 1232px" class="reader-word-layer reader-word-s1-7">拍挥动的速度有关，与球拍触球的一瞬间作用到球</p>
<p style="Z-INDEX: 43; LINE-HEIGHT: 123px; WIDTH: 739px; HEIGHT: 123px; TOP: 6583px; LEFT: 1232px" class="reader-word-layer reader-word-s1-6">上力度有关。</p>
<p style="Z-INDEX: 44; LINE-HEIGHT: 123px; WIDTH: 369px; HEIGHT: 123px; TOP: 6583px; LEFT: 1947px" class="reader-word-layer reader-word-s1-6">虽然，</p>
<p style="Z-INDEX: 45; LINE-HEIGHT: 123px; WIDTH: 862px; HEIGHT: 123px; TOP: 6583px; LEFT: 2292px" class="reader-word-layer reader-word-s1-6">增大发球力量，</p>
<p style="Z-INDEX: 46; LINE-HEIGHT: 123px; WIDTH: 862px; HEIGHT: 123px; TOP: 6583px; LEFT: 3130px" class="reader-word-layer reader-word-s1-6">容易引起失误，</p>
<p style="Z-INDEX: 47; LINE-HEIGHT: 123px; WIDTH: 2695px; LETTER-SPACING: 0px; HEIGHT: 123px; TOP: 6796px; LEFT: 1232px" class="reader-word-layer reader-word-s1-6">但发短球加力，球又短、又转、又低、落点好；发</p>
<p style="Z-INDEX: 48; LINE-HEIGHT: 123px; WIDTH: 616px; HEIGHT: 123px; TOP: 7010px; LEFT: 1232px" class="reader-word-layer reader-word-s1-6">加力长球，</p>
<p style="Z-INDEX: 49; LINE-HEIGHT: 123px; WIDTH: 492px; HEIGHT: 123px; TOP: 7010px; LEFT: 1830px" class="reader-word-layer reader-word-s1-6">球又长、</p>
<p style="Z-INDEX: 50; LINE-HEIGHT: 123px; WIDTH: 369px; HEIGHT: 123px; TOP: 7010px; LEFT: 2305px" class="reader-word-layer reader-word-s1-6">又急、</p>
<p style="Z-INDEX: 51; LINE-HEIGHT: 123px; WIDTH: 368px; LETTER-SPACING: 0px; HEIGHT: 123px; TOP: 7010px; LEFT: 2656px" class="reader-word-layer reader-word-s1-6">又转、</p>
<p style="Z-INDEX: 52; LINE-HEIGHT: 123px; WIDTH: 985px; HEIGHT: 123px; TOP: 7010px; LEFT: 3006px" class="reader-word-layer reader-word-s1-6">落在左右边角上。</p>
<p style="Z-INDEX: 53; LINE-HEIGHT: 123px; WIDTH: 2697px; HEIGHT: 123px; TOP: 7223px; LEFT: 1232px" class="reader-word-layer reader-word-s1-7">这些正是体现了乒乓球的艺术性和技术性。加力发</p>
<p style="Z-INDEX: 54; LINE-HEIGHT: 123px; WIDTH: 2697px; HEIGHT: 123px; TOP: 7437px; LEFT: 1232px" class="reader-word-layer reader-word-s1-7">球时，控制好撞击力和磨擦力的比例，适当增加球</p>
<p style="Z-INDEX: 55; LINE-HEIGHT: 123px; WIDTH: 2710px; HEIGHT: 123px; TOP: 7651px; LEFT: 1232px" class="reader-word-layer reader-word-s1-6">在球拍上磨擦时的螺旋线的长度、减少磨擦厚度、</p>
<p style="Z-INDEX: 56; LINE-HEIGHT: 123px; WIDTH: 2697px; HEIGHT: 123px; TOP: 7864px; LEFT: 1232px" class="reader-word-layer reader-word-s1-7">适当延长球在球拍上磨擦的时间，触球时的爆发力</p>
<p style="Z-INDEX: 57; LINE-HEIGHT: 123px; WIDTH: 1601px; HEIGHT: 123px; TOP: 8078px; LEFT: 1232px" class="reader-word-layer reader-word-s1-6">越大，其发球的质量就越高。</p>
<p style="Z-INDEX: 58; LINE-HEIGHT: 123px; WIDTH: 30px; FONT-FAMILY: simsun; HEIGHT: 123px; TOP: 8078px; LEFT: 2834px" class="reader-word-layer reader-word-s1-3"></p>
<p style="Z-INDEX: 59; LINE-HEIGHT: 132px; WIDTH: 186px; HEIGHT: 132px; TOP: 8291px; LEFT: 1478px" class="reader-word-layer reader-word-s1-10">1.2 </p>
<p style="Z-INDEX: 60; LINE-HEIGHT: 132px; WIDTH: 2234px; HEIGHT: 132px; TOP: 8291px; LEFT: 1695px" class="reader-word-layer reader-word-s1-11">加强发球旋转的变化。乒乓球的旋转，在</p>
<p style="Z-INDEX: 61; LINE-HEIGHT: 123px; WIDTH: 2360px; LETTER-SPACING: 1px; HEIGHT: 123px; TOP: 8505px; LEFT: 1232px" class="reader-word-layer reader-word-s1-6">现代乒乓球技术中越来越引起人们的重视。</p>
<p style="Z-INDEX: 62; LINE-HEIGHT: 123px; WIDTH: 85px; HEIGHT: 123px; TOP: 8505px; LEFT: 3596px" class="reader-word-layer reader-word-s1-12">a.</p>
<p style="Z-INDEX: 63; LINE-HEIGHT: 123px; WIDTH: 248px; LETTER-SPACING: 1px; HEIGHT: 123px; TOP: 8505px; LEFT: 3684px" class="reader-word-layer reader-word-s1-6">用球</p>
<p style="Z-INDEX: 64; LINE-HEIGHT: 123px; WIDTH: 2697px; HEIGHT: 123px; TOP: 8719px; LEFT: 1232px" class="reader-word-layer reader-word-s1-7">拍不同部位击球和磨擦球，发出不同旋转的球。如</p>
<p style="Z-INDEX: 65; LINE-HEIGHT: 123px; WIDTH: 2697px; HEIGHT: 123px; TOP: 8932px; LEFT: 1232px" class="reader-word-layer reader-word-s1-7">用拍面下侧与拍面上侧击球和磨擦球，就可以发出</p>
<p style="Z-INDEX: 66; LINE-HEIGHT: 123px; WIDTH: 30px; FONT-FAMILY: simsun; HEIGHT: 123px; TOP: 8932px; LEFT: 3930px" class="reader-word-layer reader-word-s1-3"></p>
<p style="Z-INDEX: 67; LINE-HEIGHT: 123px; WIDTH: 2698px; HEIGHT: 123px; TOP: 9146px; LEFT: 1232px" class="reader-word-layer reader-word-s1-13">相应时的转与不转球，如用正手发下旋球时，用拍</p>
<p style="Z-INDEX: 68; LINE-HEIGHT: 123px; WIDTH: 985px; HEIGHT: 123px; TOP: 9360px; LEFT: 1232px" class="reader-word-layer reader-word-s1-6">面的左侧接触球，</p>
<p style="Z-INDEX: 69; LINE-HEIGHT: 123px; WIDTH: 1233px; LETTER-SPACING: 0px; HEIGHT: 123px; TOP: 9360px; LEFT: 2195px" class="reader-word-layer reader-word-s1-6">就能制造较强的旋转；</p>
<p style="Z-INDEX: 70; LINE-HEIGHT: 123px; WIDTH: 93px; HEIGHT: 123px; TOP: 9360px; LEFT: 3406px" class="reader-word-layer reader-word-s1-14">b.</p>
<p style="Z-INDEX: 71; LINE-HEIGHT: 123px; WIDTH: 492px; HEIGHT: 123px; TOP: 9360px; LEFT: 3499px" class="reader-word-layer reader-word-s1-6">用引拍，</p>
<p style="Z-INDEX: 72; LINE-HEIGHT: 123px; WIDTH: 2697px; HEIGHT: 123px; TOP: 9573px; LEFT: 1232px" class="reader-word-layer reader-word-s1-7">如果在不同阶段和不同方向击球和磨擦球，会产生</p>
<p style="Z-INDEX: 73; LINE-HEIGHT: 123px; WIDTH: 616px; HEIGHT: 123px; TOP: 9787px; LEFT: 1232px" class="reader-word-layer reader-word-s1-6">不同旋转，</p>
<p style="Z-INDEX: 74; LINE-HEIGHT: 123px; WIDTH: 369px; HEIGHT: 123px; TOP: 9787px; LEFT: 1810px" class="reader-word-layer reader-word-s1-6">即上、</p>
<p style="Z-INDEX: 75; LINE-HEIGHT: 123px; WIDTH: 1848px; HEIGHT: 123px; TOP: 9787px; LEFT: 2142px" class="reader-word-layer reader-word-s1-6">下螺旋线方向触球会相应产生上、</p>
<p style="Z-INDEX: 76; LINE-HEIGHT: 123px; WIDTH: 745px; LETTER-SPACING: 1px; HEIGHT: 123px; TOP: 10000px; LEFT: 1232px" class="reader-word-layer reader-word-s1-6">下螺旋效果；</p>
<p style="Z-INDEX: 77; LINE-HEIGHT: 123px; WIDTH: 85px; HEIGHT: 123px; TOP: 10000px; LEFT: 1979px" class="reader-word-layer reader-word-s1-12">c.</p>
<p style="Z-INDEX: 78; LINE-HEIGHT: 123px; WIDTH: 1863px; LETTER-SPACING: 1px; HEIGHT: 123px; TOP: 10000px; LEFT: 2066px" class="reader-word-layer reader-word-s1-6">用手腕发力方式不同，产生不同的</p>
<p style="Z-INDEX: 79; LINE-HEIGHT: 123px; WIDTH: 2697px; HEIGHT: 123px; TOP: 10214px; LEFT: 1232px" class="reader-word-layer reader-word-s1-15">旋转；如果是弹击发力，力度大；如果是上螺旋线</p>
<p style="Z-INDEX: 80; LINE-HEIGHT: 123px; WIDTH: 1858px; LETTER-SPACING: 0px; HEIGHT: 123px; TOP: 2524px; LEFT: 4221px" class="reader-word-layer reader-word-s1-6">形摩擦发力，则是上螺旋式旋转；</p>
<p style="Z-INDEX: 81; LINE-HEIGHT: 123px; WIDTH: 93px; HEIGHT: 123px; TOP: 2524px; LEFT: 6081px" class="reader-word-layer reader-word-s1-9">d.</p>
<p style="Z-INDEX: 82; LINE-HEIGHT: 123px; WIDTH: 742px; LETTER-SPACING: 0px; HEIGHT: 123px; TOP: 2524px; LEFT: 6175px" class="reader-word-layer reader-word-s1-6">适当增加海绵</p>
<p style="Z-INDEX: 83; LINE-HEIGHT: 123px; WIDTH: 2587px; HEIGHT: 123px; TOP: 2738px; LEFT: 4221px" class="reader-word-layer reader-word-s1-6">厚度，增强球拍粘性，可以增强乒乓球的旋转；</p>
<p style="Z-INDEX: 84; LINE-HEIGHT: 123px; WIDTH: 116px; HEIGHT: 123px; TOP: 2738px; LEFT: 6809px" class="reader-word-layer reader-word-s1-3">e. </p>
<p style="Z-INDEX: 85; LINE-HEIGHT: 123px; WIDTH: 2697px; HEIGHT: 123px; TOP: 2951px; LEFT: 4221px" class="reader-word-layer reader-word-s1-7">增加合力作用在球拍上的时间和距离；如在发加转</p>
<p style="Z-INDEX: 86; LINE-HEIGHT: 123px; WIDTH: 2697px; HEIGHT: 123px; TOP: 3165px; LEFT: 4221px" class="reader-word-layer reader-word-s1-7">螺旋球时，应用靠近拍面右侧的部位摩擦球；如发</p>
<p style="Z-INDEX: 87; LINE-HEIGHT: 123px; WIDTH: 2710px; HEIGHT: 123px; TOP: 3378px; LEFT: 4221px" class="reader-word-layer reader-word-s1-6">不转螺旋球时，应用靠近拍面左侧的部位摩擦球。</p>
<p style="Z-INDEX: 88; LINE-HEIGHT: 123px; WIDTH: 30px; FONT-FAMILY: simsun; HEIGHT: 123px; TOP: 3378px; LEFT: 6919px" class="reader-word-layer reader-word-s1-3"></p>
<p style="Z-INDEX: 89; LINE-HEIGHT: 132px; WIDTH: 186px; HEIGHT: 132px; TOP: 3592px; LEFT: 4467px" class="reader-word-layer reader-word-s1-10">1.3 </p>
<p style="Z-INDEX: 90; LINE-HEIGHT: 132px; WIDTH: 2235px; LETTER-SPACING: 1px; HEIGHT: 132px; TOP: 3592px; LEFT: 4684px" class="reader-word-layer reader-word-s1-6">控制球的落点。控制发球落点变化是发球</p>
<p style="Z-INDEX: 91; LINE-HEIGHT: 123px; WIDTH: 2697px; HEIGHT: 123px; TOP: 3806px; LEFT: 4221px" class="reader-word-layer reader-word-s1-7">中的一个主要环节，发球落点必须长短结合、轻重</p>
<p style="Z-INDEX: 92; LINE-HEIGHT: 123px; WIDTH: 369px; HEIGHT: 123px; TOP: 4020px; LEFT: 4221px" class="reader-word-layer reader-word-s1-6">结合、</p>
<p style="Z-INDEX: 93; LINE-HEIGHT: 123px; WIDTH: 616px; HEIGHT: 123px; TOP: 4020px; LEFT: 4553px" class="reader-word-layer reader-word-s1-6">左右结合。</p>
<p style="Z-INDEX: 94; LINE-HEIGHT: 123px; WIDTH: 1848px; HEIGHT: 123px; TOP: 4020px; LEFT: 5131px" class="reader-word-layer reader-word-s1-6">如果只发短球而没有长球的配合，</p>
<p style="Z-INDEX: 95; LINE-HEIGHT: 123px; WIDTH: 2587px; HEIGHT: 123px; TOP: 4233px; LEFT: 4221px" class="reader-word-layer reader-word-s1-6">即使发的再短，落点再刁，也很难给对方造成威</p>
<p style="Z-INDEX: 96; LINE-HEIGHT: 123px; WIDTH: 30px; FONT-FAMILY: simsun; HEIGHT: 123px; TOP: 4233px; LEFT: 6809px" class="reader-word-layer reader-word-s1-3"></p>
<p style="Z-INDEX: 97; LINE-HEIGHT: 123px; WIDTH: 2697px; HEIGHT: 123px; TOP: 4447px; LEFT: 4221px" class="reader-word-layer reader-word-s1-7">胁。因此，要做到用同一个手法发出不同落点和旋</p>
<p style="Z-INDEX: 98; LINE-HEIGHT: 123px; WIDTH: 2697px; HEIGHT: 123px; TOP: 4660px; LEFT: 4221px" class="reader-word-layer reader-word-s1-7">转性质的球。一般情况下，发球者如果想把球发得</p>
<p style="Z-INDEX: 99; LINE-HEIGHT: 123px; WIDTH: 2697px; HEIGHT: 123px; TOP: 4874px; LEFT: 4221px" class="reader-word-layer reader-word-s1-7">很长，第一落点多在自己本方台面的端线附近；如</p>
<p style="Z-INDEX: 100; LINE-HEIGHT: 123px; WIDTH: 2697px; HEIGHT: 123px; TOP: 5087px; LEFT: 4221px" class="reader-word-layer reader-word-s1-7">果力量差不多，球的运动速度，侧上旋和不转球明</p>
<p style="Z-INDEX: 101; LINE-HEIGHT: 123px; WIDTH: 2697px; HEIGHT: 123px; TOP: 5301px; LEFT: 4221px" class="reader-word-layer reader-word-s1-7">显要快于侧下旋和下旋；如果是发侧上、下旋斜线</p>
<p style="Z-INDEX: 102; LINE-HEIGHT: 123px; WIDTH: 2697px; HEIGHT: 123px; TOP: 5515px; LEFT: 4221px" class="reader-word-layer reader-word-s1-7">长球，要注意球的第二弧线有侧拐特点；如果是直</p>
<p style="Z-INDEX: 103; LINE-HEIGHT: 123px; WIDTH: 2697px; HEIGHT: 123px; TOP: 5728px; LEFT: 4221px" class="reader-word-layer reader-word-s1-7">线长球，要特别注意平推过来，或者是略带外拐的</p>
<p style="Z-INDEX: 104; LINE-HEIGHT: 123px; WIDTH: 2697px; HEIGHT: 123px; TOP: 5942px; LEFT: 4221px" class="reader-word-layer reader-word-s1-7">球，因为这种球除了有很快的速度外，容易发出线</p>
<p style="Z-INDEX: 105; LINE-HEIGHT: 123px; WIDTH: 2697px; HEIGHT: 123px; TOP: 6156px; LEFT: 4221px" class="reader-word-layer reader-word-s1-7">路比较直的球，客观上加大了球的角度，给接发球</p>
<p style="Z-INDEX: 106; LINE-HEIGHT: 123px; WIDTH: 2697px; HEIGHT: 123px; TOP: 6369px; LEFT: 4221px" class="reader-word-layer reader-word-s1-7">者造成较大的难度。对于发短球，手不能发很大的</p>
<p style="Z-INDEX: 107; LINE-HEIGHT: 123px; WIDTH: 2697px; HEIGHT: 123px; TOP: 6583px; LEFT: 4221px" class="reader-word-layer reader-word-s1-15">力量，要收住一点，所以，短球较难发挥速度的优</p>
<p style="Z-INDEX: 108; LINE-HEIGHT: 123px; WIDTH: 1971px; HEIGHT: 123px; TOP: 6796px; LEFT: 4221px" class="reader-word-layer reader-word-s1-6">势，比较多的是考虑的落点和旋转。</p>
<p style="Z-INDEX: 109; LINE-HEIGHT: 123px; WIDTH: 30px; FONT-FAMILY: simsun; HEIGHT: 123px; TOP: 6796px; LEFT: 6193px" class="reader-word-layer reader-word-s1-3"></p>
<p style="Z-INDEX: 110; LINE-HEIGHT: 132px; WIDTH: 93px; HEIGHT: 132px; TOP: 7010px; LEFT: 4467px" class="reader-word-layer reader-word-s1-14">2 </p>
<p style="Z-INDEX: 111; LINE-HEIGHT: 132px; WIDTH: 1600px; LETTER-SPACING: 0px; HEIGHT: 132px; TOP: 7010px; LEFT: 4592px" class="reader-word-layer reader-word-s1-6">发球训练的要求和训练的方法</p>
<p style="Z-INDEX: 112; LINE-HEIGHT: 132px; WIDTH: 30px; FONT-FAMILY: simsun; HEIGHT: 132px; TOP: 7010px; LEFT: 6193px" class="reader-word-layer reader-word-s1-3"></p>
<p style="Z-INDEX: 113; LINE-HEIGHT: 132px; WIDTH: 186px; HEIGHT: 132px; TOP: 7223px; LEFT: 4467px" class="reader-word-layer reader-word-s1-10">2.1 </p>
<p style="Z-INDEX: 114; LINE-HEIGHT: 132px; WIDTH: 2234px; HEIGHT: 132px; TOP: 7223px; LEFT: 4684px" class="reader-word-layer reader-word-s1-11">要有恒心。发球训练是比较枯燥的，而且</p>
<p style="Z-INDEX: 115; LINE-HEIGHT: 123px; WIDTH: 2697px; HEIGHT: 123px; TOP: 7437px; LEFT: 4221px" class="reader-word-layer reader-word-s1-7">并一朝一夕就能练就的，它需要经过长期训练的积</p>
<p style="Z-INDEX: 116; LINE-HEIGHT: 123px; WIDTH: 2697px; HEIGHT: 123px; TOP: 7651px; LEFT: 4221px" class="reader-word-layer reader-word-s1-15">累。要练好发球，除了要充分认识发球的作用，更</p>
<p style="Z-INDEX: 117; LINE-HEIGHT: 123px; WIDTH: 2697px; HEIGHT: 123px; TOP: 7864px; LEFT: 4221px" class="reader-word-layer reader-word-s1-7">主要的是要从小培养对发球的兴趣，只有对发球有</p>
<p style="Z-INDEX: 118; LINE-HEIGHT: 123px; WIDTH: 2697px; HEIGHT: 123px; TOP: 8078px; LEFT: 4221px" class="reader-word-layer reader-word-s1-7">了浓厚的兴趣，才有可能持之以恒地去琢磨它、研</p>
<p style="Z-INDEX: 119; LINE-HEIGHT: 123px; WIDTH: 369px; HEIGHT: 123px; TOP: 8291px; LEFT: 4221px" class="reader-word-layer reader-word-s1-6">究它。</p>
<p style="Z-INDEX: 120; LINE-HEIGHT: 123px; WIDTH: 30px; FONT-FAMILY: simsun; HEIGHT: 123px; TOP: 8291px; LEFT: 4591px" class="reader-word-layer reader-word-s1-3"></p>
<p style="Z-INDEX: 121; LINE-HEIGHT: 132px; WIDTH: 186px; HEIGHT: 132px; TOP: 8505px; LEFT: 4467px" class="reader-word-layer reader-word-s1-10">2.2 </p>
<p style="Z-INDEX: 122; LINE-HEIGHT: 132px; WIDTH: 2234px; HEIGHT: 132px; TOP: 8505px; LEFT: 4684px" class="reader-word-layer reader-word-s1-11">吃透发球规则。高质量的发球必须规范，</p>
<p style="Z-INDEX: 123; LINE-HEIGHT: 123px; WIDTH: 2697px; HEIGHT: 123px; TOP: 8719px; LEFT: 4221px" class="reader-word-layer reader-word-s1-13">特别是对青少年运动必须讲明规则的要点，尤其是</p>
<p style="Z-INDEX: 124; LINE-HEIGHT: 123px; WIDTH: 2697px; HEIGHT: 123px; TOP: 8932px; LEFT: 4221px" class="reader-word-layer reader-word-s1-7">规则，必须对发球规则做到理解渗透。发球违例的</p>
<p style="Z-INDEX: 125; LINE-HEIGHT: 123px; WIDTH: 2697px; HEIGHT: 123px; TOP: 9146px; LEFT: 4221px" class="reader-word-layer reader-word-s1-7">现象有许多种，在青少年中比较常见的有：不执拍</p>
<p style="Z-INDEX: 126; LINE-HEIGHT: 123px; WIDTH: 2697px; HEIGHT: 123px; TOP: 9360px; LEFT: 4221px" class="reader-word-layer reader-word-s1-15">手未张开伸平；抛球时，不执拍低于比赛台面；抛</p>
<p style="Z-INDEX: 127; LINE-HEIGHT: 123px; WIDTH: 739px; HEIGHT: 123px; TOP: 9573px; LEFT: 4221px" class="reader-word-layer reader-word-s1-6">球的高度低于</p>
<p style="Z-INDEX: 128; LINE-HEIGHT: 123px; WIDTH: 153px; HEIGHT: 123px; TOP: 9573px; LEFT: 4991px" class="reader-word-layer reader-word-s1-3">16 </p>
<p style="Z-INDEX: 129; LINE-HEIGHT: 123px; WIDTH: 492px; HEIGHT: 123px; TOP: 9573px; LEFT: 5178px" class="reader-word-layer reader-word-s1-6">公分等。</p>
<p style="Z-INDEX: 130; LINE-HEIGHT: 123px; WIDTH: 30px; FONT-FAMILY: simsun; HEIGHT: 123px; TOP: 9573px; LEFT: 5669px" class="reader-word-layer reader-word-s1-3"></p>
<p style="Z-INDEX: 131; LINE-HEIGHT: 132px; WIDTH: 186px; HEIGHT: 132px; TOP: 9787px; LEFT: 4467px" class="reader-word-layer reader-word-s1-10">2.3 </p>
<p style="Z-INDEX: 132; LINE-HEIGHT: 132px; WIDTH: 2234px; HEIGHT: 132px; TOP: 9787px; LEFT: 4684px" class="reader-word-layer reader-word-s1-11">建立正确的概念。在发球练习前，要让运</p>
<p style="Z-INDEX: 133; LINE-HEIGHT: 123px; WIDTH: 2697px; HEIGHT: 123px; TOP: 10000px; LEFT: 4221px" class="reader-word-layer reader-word-s1-7">动员了解球的旋转、落点和速度之间的关系，帮助</p>
<p style="Z-INDEX: 134; LINE-HEIGHT: 123px; WIDTH: 2697px; HEIGHT: 123px; TOP: 10214px; LEFT: 4221px" class="reader-word-layer reader-word-s1-7">运动员弄清各种发球的特性，明确各种发球方法及</p>
<p style="Z-INDEX: 2; LINE-HEIGHT: 123px; WIDTH: 2697px; HEIGHT: 123px; TOP: 1029px; LEFT: 1232px" class="reader-word-layer reader-word-s2-2">技术要领。要尽可能使发出的球具备力量重、落点</p>
<p style="Z-INDEX: 3; LINE-HEIGHT: 123px; WIDTH: 30px; FONT-FAMILY: simsun; HEIGHT: 123px; TOP: 1029px; LEFT: 3930px" class="reader-word-layer reader-word-s2-3"></p>
<p style="Z-INDEX: 4; LINE-HEIGHT: 123px; WIDTH: 1601px; HEIGHT: 123px; TOP: 1243px; LEFT: 1232px" class="reader-word-layer reader-word-s2-1">刁、旋转强、速度快等特点</p>