• <var id="rhcsu"><u id="rhcsu"></u></var>
    <meter id="rhcsu"></meter><output id="rhcsu"></output>

    <code id="rhcsu"><ol id="rhcsu"></ol></code>

    <acronym id="rhcsu"></acronym>
    
    

      <dd id="rhcsu"></dd>

      歡迎來到原中小學教育資源網!

      三年級上冊秒的認識課件

      課件 時間:2018-02-24 我要投稿
      【www.51cxty.com - 課件】

        教學目標

        1.通過觀察自主認識新的時間單位:秒,知道1分=60秒.

        2.通過動手操作等豐富的學習活動,建立1秒及幾秒的時間觀念.

        3.通過多媒體課件演示及學生的動手操作等學習活動,激發學習學習興趣,明確珍惜時間的重要性.

        教具

        鐘面、多媒體計算機軟硬件一套.

        學具

        口算練習紙每人一張、自備水彩筆、剪刀、白紙、蠟光紙等.

        教學過程

        一. 導入

        1、(播放音頻“滴答”)請小朋友仔細聽一聽,這是什么聲音?

        2、(演示動畫“時鐘”)再請小朋友仔細地看一看,看到什么?

        3、今天這節課,我們就學習有關秒的知識.(板書課題:秒的認識)

        二. 新課

        (一) 鐘面上的秒

        1、你知道秒針是怎樣計時的嗎?請你仔細觀察,把看到的告訴大家.(秒針走5小格)

        揭示:秒針走一小格的時間是1秒.

        2、(秒針從數字12走到數字6)這表示經過幾秒?

        (從數字6走到數字8)這一次表示經過了幾秒?輕輕告訴同桌的小朋友你是怎么看的.你還知道秒針從哪兒走到哪兒也是10秒?上來指一指.

        3、(播放動畫“60秒”)這次表示經過多長時間呢?

        (1分=60秒)

        從鐘面上看一看是不是這樣呢?你是怎么看出來1分=60秒的?

        4、1分就是60秒,那我們平常說的"半分鐘"呢?(30秒)

        (二) 體會1秒

        1、1秒到底有多長呢?

        讓我們再來閉上眼睛,仔細聽一聽.

        鐘表發出"滴答"一聲所經過的時間就是1秒.

        2、請小朋友來做一個拍手練習,每秒拍一下手,看看誰拍得最準.

        先自已試一試.

        3、誰來試一試? 誰還能不看鐘,來拍一拍,其他小朋友可以提醒他.

        4、每秒數一數,看看數到10的時候,是不是正好10秒?又相差了多少?

        同桌的兩個小朋友,互相比一比.

        5、剛才哪些小朋友數得比較準,你愿意上來表演一下嗎?

        6、小結:剛才,我們聽到鐘聲"滴答"就是1秒,拍下手是1秒,數一個數也是1秒.你能做一動作來表示1秒嗎?(小組討論)

        7、1秒鐘確實很短,但是有些現代化的工具1秒鐘卻能做很多事情呢.現代化工廠的流水線上一秒鐘可以生產出成千上萬個零件.有的電腦一秒鐘可以完成3萬億次運算等等.

        所以,你可別小看了這短短的1秒鐘呀,幾個1秒鐘連起來就能做更多的事情啦.

        (三) 體會幾秒

        1、現在就給你30秒鐘,請你測一測你的脈搏跳了多少下.

        2、我們平時每天都要來做口算,口算的要求是又對又快,現在我們就來進行一次"半分鐘口算比賽".比一比誰作對的題最多,我們將評出今天的"口算之星".

        3、其實呀,做每一件事都要花一定的時間,就連我們在不經意間作一次深呼吸,也要花好幾秒鐘呢,你知道怎樣是一次深呼吸嗎?

        做一次深呼吸,看看用了幾分鐘.

        4、你還知道生活中哪些事情可以用秒來計算時間嗎?

        請小朋友在較短的時間里完成一件有意義的、你最拿手的事,看看你用了多少秒鐘,比比誰做得又快又好.

        5、今天,我們學習了什么?通過剛才的學習你知道了什么?

        有了秒針,計時就更準確了,時針.分針.秒針在時間王國里分工合作,準確地為人們報時.

        (播放視頻“王麗萍”) 悉尼奧運會上,中國選手王麗萍榮獲女子20公里競走的冠軍,你知道她奪冠的成績嗎?(1小時29分05秒)

        三.總結

        到現在為止,你已經認識了哪些時間單位?

        四. 練習

        1、在( )里填上小時.分或秒

        (1) 我們上一節課的時間是40( )

        (2) 夏天我們午睡的時間是40( )

        (3) 小明跑100米要用19( )

        2、在一些國際比賽中,競爭就更加激烈了.(播放視頻“男子100米跑”)這是悉尼奧運會男子100米決賽的精彩畫面.冠亞軍之間相差的時間1秒鐘都不到,只有0.12秒.

        3、下課鈴聲響了,請大家安靜.迅速地將文具整理好,放在文具袋中,看看需要多少時間,相信大家今后每時每刻都能這樣珍惜分分秒秒,做時間的主人.

        板書設計:略.

      熱門文章
      268彩票平台268彩票主页268彩票网站268彩票官网268彩票娱乐 38848.com | www.yh6979.com | 1775rr.com | www.959579.com | www.7415vv.com | www.ylg3099.com | 4255x.com | www.903839.com | www.hgdc200.com | www.xpj178.com | 67888t.cc | www.50080o.com | www.917004.com | www.kj88822.com | 111wns88.org | cp019.com | www.qml0.com | www.4102g.com | www.09569c.com | 009.so | 24768.com | www.hw4444.com | www.7225f.com | www.r8867.com | 23599j.com | 44665002.com | www.978137.com | www.0096aa.com | www.29886b.com | 86811qq.com | 18438cj.com | www.911888a.com | www.yz7702.com | www.xj2233.com | h4455g.com | 2566h6.com | 760hh.cc | www.0014o.com | www.4996gy.com | www.58777f.com | 8f05.com | 33599oo.com | www.318016.com | www.334777.com | www.qq55826.com | www.vns55545.com | 922310.com | 8006501.com | www.250680.com | www.81233w.com | www.bet63s.com | www.k3355b.com | 2381yy.com | 888.vip | 20188j.com | www.616383.com | www.5956868.com | www.5099xx.com | www.sun7708.com | 931750.com | 11683388.com | 66300vip35.com | www.401287.com | www.50732f.com | www.06820z.com | www.110048.com | www.pj4858.com | bb33338.com | 61326622.com | P35.com | www.c146.vip | www.aobo196.com | www.5099yy.com | www.4249.com | www.pj5908.com | 6766gg.com | 0860d.com | 99111nn.com | www.452809.com | www.31047.com | www.86339c.com | www.rgcp444.com | www.sands4455.com | www.dz829.com | 00vv8332.com | dc1104.com | 88535y.com | 3136uu.com | www.292726.com | www.hcjt7.com | www.hg6767b.com | www.91779m.com | www.67886788.com | www.k3355b.com | www.1118xj.com | hb8331.com | 7726018.com | 228888y.com | 1168d.com | 3049m.com | www.281380.com | www.331616a.com | www.49956f.com | www.5zz66.com | www.9570118.com | www.8967f.com | www.9053.com | www.88399.com | www.c8888.net | www.54776.com | 79889g.com | 009900c.com | 2021nnn.com | 8037ll.com | rr444000.com | 3473j.com | 55009193.com | 77201.com | 4255hhh.com | 56988ee.com | 2381www.com | www.198109.com | www.615121.com | www.930155.com | www.055.la | www.2350x.com | www.60108y.com | www.bet73r.com | www.ya2019i.com | www.0343m.com | www.07679d.com | www.00778x.com | www.89599c.com | www.1168z.com | www.r948r.com | www.02272.com | www.68228p.com | www.drf0876.com | www.rb362.com | www.103111.com | www.4499666.com | www.345446.com | www.777800.cc | www.www-48345.com | www.76775c.com | www.24071.com | www.799666q.com | www.dzcp4444.com | www.71071v.com | www.0021331.com | www.4058m.com | www.64566g.com | www.33678ss.com | www.837292.com | www.js56772.com | www.789583.com | www.7886267.com | www.84499d.com | www.94580.cc | www.995771.com | www.620983.com | www.278207.com | www.43131l.com | 6175uu.com | 8577o.cc | 461653.com | 71707i.com | 11xx8332.com | 88002848.com | www.fh7777.com | www.808xpj.com | www.msc66.com | www.hg7811.com | www.4699f.com | www.5981c.com | www.801sun.com | www.79670.com | www.004ac.com | www.710930.com | www.196346.com | 33115w.com | 99660.com | sjg002.com | yh6688.bet | 2019m.cc | www.xn339.com | www.jjjj22222.com | www.35700c.com | www.g98478.com | www.84141.com | www.892070.com | www.166127.com | hg77704.com | c388u.com | 4152i.com | 365488.bet | www.vns0488.com | www.10852b.com | www.5981x.com | www.1206.com | www.lqc5.com | 36501w.com | 3238.com | 61327700.com | www.x5055.com | www.4901b.com | www.b35ww.com | www.081234.com | www.88dwj.com | www.135368.com | hga019.com | jj01234.com | 1592q.com | www.40033.1940033.com | www.v948v.com | www.883399f.com | www.8039r.com | www.320660.com | 567bet.co | 3435k.com | www.hg3442.com | www.511111.com | www.7225e.com | www.88065c.com | www.477680.com | 1407r.com | 15942222.com | www.betgobet.com | www.58665f.com | www.81608f.com | www.cp702.vip | 365225c.com | 574747.com | 6146b.com | www.771671a.com | www.jsdc9222.com | www.763227.com | 914903.com | 33382uu.com | www.bet3651014.com | www.sun3678.com | www.046161.com | www.609717.com | 49490524.com | yth13.net | www.2767vv.com | www.1559506.com | www.22qxc.com | 9411nnn.com | fxc008.com | www.lb0044.com | www.C63.COM? | www.26163y.com | aa38648.cc | 566777t.com | www.pj2026.com | www.0849.com | www.21202m.com | pt777.com | 027bk.com | www.yh8402.com | www.938690.com | www.874918.com | 0057a.com | 87665q.com | www.808msc.com | www.ylylc02.com | www.239644.com | 5906gg.com | www.hg3388.org | www.04567m.com | www.21202j.com | 168cp-c.com | n888ww.com | www.6372010.com | www.6678687.com | www.89894e.com | 78808a.com | www.032007.com | www.9187k.com | www.343918.com | 0343.com | www.330099c.com | www.52062w.com | www.269707.com | 4255jjj.com | www.88837z.com | www.hg241.com | www.117318.com | 4465m.com | www.xpj7233.com | www.js02348.com | x7742.com | hg77702.com | www.2380e.com | www.16878f.com | zxd2229.com | www.86611v.com | www.4996km.com | www.606647.com | 3822d.com | www.006084.com | www.520860.com | xpj71333.com | 78117799.com | www.960620.com | www.88266i.com | 2jsttt.com | www.938x.cc | www.hy6936.com | youhui074.com | www.88552055.com | www.80075z.com | 8977nn.com | www.6491z.com | www.773570.com | 61321199.com | www.86611c.com | www.40288.com | 281001.com | 2767g.com | www.89677g.com | www.wcp8898.com | v2351.com | www.98698w.com | www.582977.com | 70118p.com | www.u948u.com | www.715934.com | 18438v.com | www.hjcp55.com | www.651514.com | 32666k.com | www.66973.am | www.310195.com | 8290g.com | www.720799.com | www.233896.com | 2455.com | www.81508.com | 2851l.com | www.4759aa.com | www.17jsc.com | ahg5588.com | www.21365zz.com | www.78949n.com | 53059.vip | www.4394.com | www.691071.com | 33vv8332.com | www.bwin920.co | pj1314520.com | www.xsj900.com | www.93gj03.com | oo38648.cc | www.ffvns.com | www.966943.com | ddcp9.com | www.7893.net | xpj8930.com | www.56520k.com | www.51331b.com | 9101902.com | www.r4042.com | www.186372.com | 1624hh.com | www.8998887.com | 26119a.com | www.356309.com | www.391411.com | 73999g.com | www.36585555.com | 8522gggg.com | www.472709.com | js14g.com | www.hgbet55.com | www.ascp0.com | 7720a.net | www.56011s.com | 30688c.com | www.uuuu9999.com | www.52072u.com | www.6491p.com | www.07163c.com | 9068v.com | www.860840.com | 3678.com | www.333777j.com | 88851m.com | www.h7788j.com | www.hr1888.com | 2846o.com | www.37377u.com | fff5701.com | www.00772j.com | 67890fff.com | www.092779.com | 297555.com | www.77cmsc.net | www.757988.com | 0311v.com | www.60007p.com | i7742.com | www.9187s.com | 77ee940.com | www.5446vv.com | 1389qq.com | www.705msc.com | 272ee.net | www.7764.com | 80368p.com | www.6861767676.com | www.378017.com | www.323006.com | www.965666.com | hg37370.com | www.5484d.com | 707144.com | www.88266g.com | hh7742.com | www.0601d.com | 86811ww.com | www.68993265.com | 6261h.com | www.1466a.com | 3435c.com | www.904488.com | hhh67890.com | www.79566.com | 0029.com | www.hg968.com | www.655903.com | www.pjliaoning.com | www.729937.com | www.yh06789.com | www.635852.com | www.56520g.com | www.332790.com | www.pj3098.com | h151515.com | www.3814222.com | r1429.com | www.c46.com | h4212.com | www.58404b.com | 795939.com | www.393968.com | 56787hh.com | www.34788c.com | 1483a.com | www.932669.com | www.87680e.com | www.030238.com | www.msc573.com | 01234aaa.com | www.4694i.com | 1294i.cc | www.993916.com | 110770.com | www.78wcp.com | www.v0020.com | www.178756.com | www.654234.com | 80368oo.com | www.068526.com | 8344222.com | www.635799.com | 124058.com | www.701548.com | www.bet881.com | 500500.com | www.7415kk.com | 3640g.com | www.83033m.com | 15f4.net | www.068672.com | www.76773.com | 8030p.com | www.8998755.com | 8577m.cc | www.444216.com | www.456990.com | js6444.com | www.88qiji.com | 2506e.com | www.514377.com | www.70545d.com | 00555004.com | www.6889783.com | 3016xxx.com | www.355204.com | www.vs1368.com | 3522vv.com | www.ky1006.com | www.339688n.com | www.43131j.com | www.76176.com | ttt1915.com | www.5441j.com | www.11995454.com | 22296aa.com | www.7681002.com | jnn003.com | www.076069.com | www.4212n.com | vv3405.com | www.914903.com | www.87669.com | 99449737.com | www.00665h.com | www.sun7708.com | ylgr666.com | www.68993259.com | www.7435e.com | 99306w.com | www.93919.com | 3544l.com | 23800f.com | www.79095s.com | 83377i.com | www.43818a.com | www.3983119.com | 2997707.com | www.96386e.com | www.xpj588.com | 3169l.com | www.68568v.com | www.a80288.com | ttt2848.com | bet28e.com | www.4521p.com | hg0088.com | 2934q.com | www.g63568.com | www.hgbb.com | 77151.com | www.80767l.com | www.hh536.com | bwinfff.com | www.95.la | www.9981msc.com | 62222t.com | www.297126.com | www.60048.com | 23233b.com | 9895l.com | www.hg6767c.com | www.dhygw994.com | 4340r.com | www.737689.com | www.8967w.com | 168b3.com | 预览66458g.com | www.28891h.com | www.32666n.com | 70118.com | www.666055.cc | www.673888y.com | blg008.com | 3544v.com | www.26299x.com | www.709msc.com | 13558.com | 76886y.com | www.ejylc10.com | www.b55551.com | 3640c.com | www.299494.com | www.js89n.vip | www.00829c.com | p888168.com | www.560652.com | www.280.cc | www.55225454.com | 80878p.com | www.330627.com | 8547b.com | ty262.com | www.4923e.com | www.282555b.com | bk080.net | 272o.net | www.75345.cc | www.yf370.com | ss5144.com | 3650744.com | www.895030.com | www.377666s.com | www.hg968.com | d14666.com | www.001857.com | www.89777z.com | www.214777.com | 88885.com | 3379gg.com | www.cb2388.com | www.7366006.com | www.333133g.com | 33846.net | 99589j.net | www.60108s.com | www.668cp11.com | www.4123k.app | 81366r.com | www.068652.com | www.0099wd.com | www.i4042.com | www.56733w.com | 4675j.com | www.29178a.com | www.80065q.com | www.baifu35.com | www.63877m.com | 93922e.com | pz08.com | www.chi59.com | www.9895q.com | www.31567.ag | 6220e.com | 228888u.com | www.106316.com | www.80075p.com | www.19019p.com | www.365815m.com | 61323311.com | biying920vip.com | www.514977.com | www.4923s.com | www.yfcp315.com | www.4625m.com | x3855.com | rr38648.cc | www.202341.com | www.50788w.com | www.89677i.com | www.mg7088.com | 9030b.com | 80368ss.com | 5443p.com | www.901833.com | www.7886268.com | www.983888c.com | www.777444u.com | uuu5682.com | 4066n.com | 3121o.com | www.775020.com | www.kj555888.com | www.bb012.com | www.1010160.com | www.033033v.com | 7240q.com | 27365e.com | 760ss.cc | www.901327.com | www.0601x.com | www.bet63b.com | www.9997068.com | www.zs1199.com | hwcp22.com | 0241s.com | 500000317.com | www.338057.com | www.3479d.com | www.3398766.com | www.4963xx.com | www.f8867.com | www.8473d.com | 131h.net | 35222x.com | 4018ii.com | 00885004.com | www.188712.com | www.tctx2.com | www.188666.com | www.v32031.com | www.fh70.com | www.tyc855.com | www.bet3650514.com | wancai.com | 33318.com | l66474l.com | 5802cc.com | nn2649.com | www.210927.com | www.011888a.com | www.65707h.com | www.7681004.com | www.38138v.com | www.063261.com | www.64717.com | www.7025y.com | www.ylg4444.com | 8290l.com | a08199.com | mmm4255.com | 91333.com | 3202h.com | 78116655.com | xpj677s.com | www.26878i.com | www.391438.com | www.904827.com | www.3005.am | www.73166f.com | www.16065x.com | www.52062e.com | www.91779w.com | www.bet91489.com | www.5360uu.com | www.875599.com | www.sands6789.com | www.hg6888.com | www.7025t.com | www.223456f.com | www.686936.com | 3936b.com | 588www.cc | nn2205.com | 0600q.cc | 33382mm.com | ahga008.com | x33b.vip | 55797i.com | 88663015.com | 8547bb.com | 7200163.com | yl6896.com | h82365.com | 338333.com | wlb55.com | 365-818.com | 2096a.com | 78885.com | 61323377.com | 44112007.com | 7777.tt | 2381l.com | 3222c.cc | 3202j.com | 69990v.com | www.68666x.com | www.4759aa.com | www.63877g.com | www.yy883.com | www.4938i.com | www.81228m.com | www.hg2808kk.com | www.hg5689.com | www.67r6.com | www.226600r.com | www.4853.com | www.dzj0770.com | www.89677o.com | www.j3410.com | www.1538222.com | www.88yh21.com | www.4923f.com | www.41518y.com | www.2934g.com | www.976550.com | www.602266.com | www.203882.com | 00774aa.com | 3225g.com | 9p123.com | 0055gbh.com | rrr5657.com | l08199.com | 2355f.com | www.kb7070.com | www.qqqqkkkk.com | www.698js.com | www.mng55.com | www.8473n.com | www.69567y.com | www.6889782.com | www.50732b.com | www.fcff4.com | www.505354.com | df8n.com | yyy5144.com | ddj169.com | 51133vvv.com | 9149f.com | www.990960.com | www.3333740.com | www.345567.com | www.4136v.com | www.1764f.com | www.77803s.com | www.ch8988.com | www.254568.com | 9103pp.com | 8742t.com | 90307n.com | 0600p.cc | www.7025g.com | www.qq599.com | www.bwinyz39.com | www.888999qipai.com | www.16878x.com | www.696776.com | 4066z.com | 7249e.com | 22098x.com | 333ths.com | www.yl0399.com | www.48282222.com | www.4521e.com | www.21365.com | www.912278.com | 7720776.com | 91019b.net | 5651h.com | www.h67783.com | www.03688.com | www.71071y.com | www.8998828.com | www.hjin1.com | www.36788i.com | feicai0371.com | m3410.com | www.3aobo.com | www.hg1810.com | www.6880ll.com | www.98528f.com | www.599647.com | 88993u.com | 3640ss.com | 97618h.com | www.xpj5552.com | www.hjdc2005.com | www.81233b.com | www.514611.com | 7335d.com | www.0088wd.com | www.599309.com | hh4255.com | 3566cc.com | www.4759pp.com | www.76775d.com | www.wns11.me | www.bei05.com | 08530002.com | fff5701.com | pj677x.com | www.03543.com | www.js89y.vip | www.zcwf0.com | 2709f.com | pj88nn.com | www.hg988800.com | www.drf0876.com | www.5856876.com | www.691663.com | 4255uu.com | 2078g.com | www.655msc.com | www.5099qq.com | www.50788n.com | www.50052v.com | 1813q.com | 37730vip.com | www.pi111.com | www.ihg5577.com | www.504633.com | 11163311.com | 0747t.com | www.hx928.com | www.3775r.com | www.555958.com | jixiang6.com | P35jj.com | www.siji5.com | www.7375.com | www.65707u.com | 40420011.com | www.bet3650614.com | www.8473n.com | www.055o.cc | 9964k.com | 66p88.cc | www.49200a.com | www.js8888.bet | www.025079.com | kkk40033.com | www.3643w.com | www.xj6009.com | www.806375.com | 272c.net | www.hmgj05.com | www.19019f.com | www.063wy.com | 0080q.com | 6245f.com | www.77731g.com | www.33068.cc | 1516.com | 2820r.com | www.888c31.com | www.9478y.com | 6191js.com | zhcp06.com | www.51500.com | www.55qxc.com | 22556e.com | www.8js189.com | www.848777b.com | www.924570.com | 6118z.com | www.vns6005.com | www.887767.com | www.464499.com | 3522bb.cc | www.vns8906.com | www.2200ra8.com | 80908u.com | bj299.com | www.5966eee.com | www.001hy.cc | hg2018.cc | www.yinhe9507d.com | www.6880cc.com | www.196050.com | 8037vvv.com | www.31955.com | www.00840b.com | 0234f.com | www.188589.com | www.1022777.com | www.298730.com | youfa22.vip | www.0201gg.com | www.3552h.com | 3482c.com | www.76543u.com | www.3775q.com | 138761.com | feicai0410.com | www.8882hj.com | www.515233.com | 93922l.com | www.1www.0079988.com | www.2934c.com | 4809x.com | www.7025s.com | www.hd8671.com | 44488n.com | www.a8a8345.com | www.07679k.com | 66300vip03.com | 2506g.com | www.3066ee.com | www.136025.com | a444000.com | www.71071m.com | www.388945.com | 8f06.com | www.38345j.com | www.607325.com | aa1915.com | www.76775e.com | www.hr3888.com | 3846uu.com | www.93342.com | www.890702.com | sss1915.com | www.56655v.com | www.599416.com | qq365a.com | www.7415s.com | www.143552.com | 3379aa.com | www.33678yy.com | 9964h.com | www.4759ll.com | www.5953838.com | 3678w.com | www.05125a.com | www.26163m.com | 6199344.com | www.004433.com | www.882186.com | 20073365.com | www.7334e.com | 36501w.com | www.68666s.com | www.705323.com | biying910vip.com | www.ljw030.com | www.890c.com | hc3389.com | www.4963h.com | rgcp.com | www.5665699.com | www.908296.com | 33382ff.com | www.39333.com | www.621312.com | 76543j.com | www.81508y.com | 4018ww.com | www.js5859.com | www.ck9595.com | hwcp.com | www.3032kk.com | ule608.com | www.542455.com | www.am6633.com | 55545u.com | www.5886qq.com | sqrc8.com | www.h7733.com | www.711893.com | le888s.com | www.826018.com | 3143.com | www.dckpv.com | www.60007i.com | www.tushan168.com | www.34788f.com | hhgz0077.com | www.4996sy.com | 998l.cc | www.bmw8555.com | www.731996.com | 3189aa.com | www.d98478.com | 30170088.com | www.16181y.com | 6641m.com | www.234567o.com | www.609815.com | 320007.com | www.65707s.com | 79889p.com | www.07679s.com | js6444.com | www.gd68199.com | hgyz888.com | www.16297777.com | www.599810.com | www.6033r.com | www.07163z.com | 28288aa.com | www.58665e.com | 3511.sbf822.com | www.29980044.net | www.278688.com | www.25673b.com | www.c5619.com | 5589333.com | www.50054g.com | 25288a.com | www.1466n.com | 3368.com | www.40288c.com | 55818g.com | www.777jyh.com | rr474.com | www.77731k.com | 4809b.com | www.hg4089.com | 65560055.com | www.27177c.com | www.77114e.com | www.007733.com | www.286898.com | www.b4737.com | www.550347.com | www.yh05678.com | www.760169.com | www.kb8854.com | www.901512.com | www.xpj6666.cc | www.911096.com | www.wns8848.com | www.878743.com | www.38200a.com |