部编人教版三年级上语文《10 在牛肚子里旅行》优质精品公开课课件.pptx

,猜谜语,蟋 蟀,在牛肚子里旅行,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,旅行 咱们 偷偷 答应 卷起 可怜 救命 拼命 打扫 牙齿 吞咽 胃部 管理 悲哀 刚才 几乎 流泪 眯着 算是 一骨碌 嚼东西,旅行 咱们 偷偷 答应 卷起 可怜 救命 拼命 打扫 牙齿 吞咽 胃部 管理 悲哀 刚才 几乎 流泪 眯着 算是 一骨碌 嚼东西,zán,d yìn,lèi,jiáo,ch,tn yàn,wèi,bi,j,m,tu,jun,一起去旅行,咱,答,偷,齿,嚼,吞,胃,悲,咽,几,泪,眯,应,卷,骨,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,我会写,旅,咱,怜,救,扫,胃,管,刚,命,拼,流,泪,算,圈出左右结构的字。,拼,扫,扌,流,泪,氵,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,1.指食物在人和动物体内，经过物理和化学作用而变为能够溶解于水并可以被机体吸收的养料。 （ ） 2.慢慢地吃东西。 （ ）3.迅速地一滚或一转。 （ ）,B,C,A,选词填空,A.一骨碌 B.消化 C.细嚼慢咽,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,快速浏览课文，思考： 1.是谁在牛肚子里旅行？,小蟋蟀红头,2.红头怎么会到牛肚子里旅行呢？,红头和青头玩捉迷藏，红头躲在草堆里，被大黄牛吃到肚子里去了。,阅读课文第7-20自然段，说说红头在牛肚子里的旅行路线。,可怜的红头还没有来得及跳开，就和草一起被大黄牛卷到嘴里了。,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,它和草已经一起进了牛的肚子。,红头在牛肚子里随着草一起移动，从第一个胃到了第二个胃，又从第二个胃回到了牛嘴里。,第一个胃,第二个胃,牛嘴,“阿嚏！”牛打了一个喷嚏，红头随着一团草一下子给喷了出来。,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,红头在牛肚子里的旅行路线：,读一读红头的话，体会它的心情变化。,“救命啊！救命啊！”红头拼命地叫起来。,“我被牛吃了正在它的嘴里救命啊！救命啊！”,着急、害怕,“那我马上就会死掉！”红头哭起来。,“可是你说这些对我有什么用呢？”红头悲哀地说。,悲哀、绝望,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,红头看见自己的朋友，高兴地流下了眼泪：“谢谢你”,高兴、感激,这是一次危险的旅行，红头的转危为安离不开青头的帮助。想一想，青头是怎样帮助和鼓励红头的呢？在文中找出相关的句子读一读。,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,青头大吃一惊，它一下子蹦到牛身上。可是那头牛用尾巴轻轻一扫，青头就给摔到地上了。青头不顾身上的疼痛，一骨碌爬起来大声喊：“躲过它的牙齿，牛在这时候不会仔细嚼的，它会把你和草一起吞到肚子里去”,“红头！不要怕，你会出来的。我听说，牛肚子里一共有四个胃，前三个胃是贮藏食物的，只有第四个胃才是管消化的！”,“当然有用。等一会儿牛休息的时候，它要把刚才吞下去的草重新送回嘴里，然后细嚼慢咽你是勇敢的蟋蟀，你一定能出来的！”,善于鼓励、安慰朋友,这时，青头爬到牛鼻子上，用它的身体在牛鼻孔里蹭来蹭去。,“不要哭，就算你在牛肚子里作了一次旅行吧！”,勇敢、聪明,乐观,在青头的帮助下，红头死里逃生，这时他会对自己的朋友说些什么呢？,我会说,在牛肚子里旅行,红头：进牛嘴牛的第一个胃牛的第二个胃牛嘴出牛肚子,青头：珍惜友情 勇敢无畏,本文写青头在好朋友红头被牛吞掉以后，做出各种努力救出红头的故事，从中可以看出青头不仅懂得的知识多，而且珍惜友情，勇敢无畏。,牛胃的结构与功能：成年牛的胃由瘤胃、网胃、瓣胃、皱胃组成。瘤胃最大，占四个胃总容积的80%，很大一部分饲料在此消化。网胃占四个胃总容积的5%，其功能如同筛子，将随饲料吃进去的重物如钉子、铁丝等存留其中。瓣胃占四个胃总容积的7%，其功能主,主要是吸收饲料内的水分，挤压磨碎饲料。皱胃又称真胃，占四个胃总容积的8%，其作用与动物的胃相同，可分泌消化液与消化酶。,反刍：俗称倒嚼，指某些动物经过一段时间以后将半消化的食物从胃里返回嘴里再次咀嚼。如羊、牛等统称为反刍动物。,随堂练习,一、组词。,蟋（ ） 消（ ） 哀（ ）齿（ ） 旅（ ） 泪（ ）,蟋蟀,消失,悲哀,牙齿,旅行,泪水,二、按课文内容填空。,青头又_牛身上，_肚皮和红头说话：“红头！不要怕，你会_的。我听说牛肚子里一共有_，前三个胃是_ _的，只有_才是管_的！”,隔着,跳到,四个胃,出来,贮藏食,物,第四个胃,消化,三、关于友情的词语。,天长地久 深情厚谊 风雨同舟志同道合 肝脑涂地 桃花潭水患难与共 关怀备至 患难之交生死之交 情深义重 肝胆相照手足之情 拔刀相助 金兰之交两肋插刀 千里送鹅毛,分角色朗读课文，体会青头和红头对话时的心情，读出相应的语气。,朗读指导：课文中有两个角色，一个是青头，一个是红头。读第一部分“玩捉迷藏”时的对话，要读出高兴的心情，读出欢快的语气；读第二部分“红头进牛肚”的对话，读出红头的害怕与恐惧以及青头的紧张与焦急；读第三,部分“想办法救红头”，红头的哭诉要读出悲哀的语气，青头解说牛胃的构造及反刍功能要读出诚恳、沉稳的语气，让红头安定情绪，鼓舞它战胜危险，增强信心；最后一部分红头说“谢谢你”要读出感激的语气，表现出获得新生后的喜悦心情，青头最后一句话要读出幽默开心的语气，体现出助人为乐后的满足与喜悦。,从哪里可以看出青头和红头是“非常要好的朋友”？默读全文，至少找出三处来说明。,参考答案： 有一天，吃过早饭，青头对红头说:“咱们玩捉迷藏吧！”“那让我先,藏，你来找。”红头说。“好吧！”青头说完，转过身子闭上眼睛。 青头大吃一惊，它一下子蹦到牛身上，可是那头牛用尾巴轻轻一扫，青头就给摔到地上了。,青头又跳到牛身上，隔着肚皮和红头说话：“红头! 不要怕，你会出来的。我听说牛肚子里一共有四个胃，前三个胃是贮藏食物的，只有第四个胃才是管消化的！”,红头的旅行真是惊险。画出它在牛肚子里旅行的路线，再把这个故事讲给别人听。,示例： 红头在牛肚子里的路线图：,牛嘴,牙齿,第一个胃,第二个胃,牛嘴,把这个故事讲给朋友听。阅读、收集有趣又惊险的故事与同学们分享。,