最新部编版小学三年级语文下册14蜜蜂完美版PPT课件

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8、才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,蜜,辨,阻,跨,蜂,检,确,误,查,括,陌,途,我会写,将上面的生字按结构分类。,半包围结构,上下结构,左右结构,左中右结构,结构：,部首：,书写指导：,左部的“辛”竖改为撇；右部的“辛”竖为悬针竖。,bin,辨,重难点字书写指导,左中右,辛,正确，没有差错。 （ ） 根据已经知道的事情来想象不知道的事情。 （ ） 表示十分接近；差不多。（ ） 根据特点辨别，做出

9、判断，以便找出或认定某一对象。 （ ）,准确无误,推测,几乎,辨认,填一填,辨认 _ 推测 _ 寻找 _ 包括 _,识别,陌生 _ 准确 _ 阻力 _ 激动 _,推断,寻觅,包含,熟悉,错误,动力,平静,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,

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11、状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,想一想课文讲了一件什么事？,本文主要讲了作者做了一个证实蜜蜂是否有辨认方向的能力的实验的事情。,第一部分（1）：写作者想要做实验的原因。 第二部分（26）：写实验的经过和结果。 第三部分（7）：写实验得出的结论。,围绕着实验，把课文划分为三个部分，试着说说各部分的大意。,状元

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13、成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元

14、成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,1.作者为什么要做这个实验？,听说蜜蜂有辨认方向的能力，无论飞到哪里，它总是可以回到原处。我想做个实验。,听说,表明不一定真实可靠，因此这既成了“我”做试验的原因，也体现了“我”求实的科学态度。,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,

15、状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,

16、状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,2.实验是如何进行的？结果怎样？,一天，我在我家草料棚的蜂窝里捉了一些蜜蜂，把它们放在纸袋里。我叫小女儿在蜂窝旁等着，自己带着蜜蜂，走了四公里路，打开纸袋，在它们身上做

17、了白色记号，然后放了出来。,捉蜜蜂做记号,放蜜蜂测能力,实验过程,思考：作者为什么要捉自家草料棚的蜜蜂？还在它们身上做记号呢？,捉自家草料棚的蜜蜂便于观察 给蜜蜂做记号与其他蜜蜂区分,思考：作者为什么要走了四公里路才放飞蜜蜂，还叫小女儿在蜂窝旁等着？,走了四公里路放飞蜜蜂因为路稍远一些，更能说明问题 叫小女儿在蜂窝旁等着掌握蜜蜂飞回来的时间,思考：这一系列实验过程体现了作者怎样的科学态度？,这一系列实验过程，充分体现了作者严谨的科学态度，说明他不仅观察得认真，而且用心思考。,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,

18、状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,

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20、二十只左右被闷了好久的蜜蜂向四面飞散，好像在寻找回家的方向。这时候刮起了狂风，蜜蜂飞得很低，几乎要触到地面，大概这样可以减少阻力。,说明作者观察得很仔细，体现科普说明文用词的准确性。,大概,这些都是作者的推测，充分体现了作者严谨的科学态度和善于观察思考的品质。,二十只左右,好像,几乎,几乎,几本书,j,j,我想，它们飞得这么低，怎么能看到遥远的家呢？,我想，它们飞得这么低，不能看到遥远的家。,反问的语气，起强调作用。,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路

21、,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路

22、,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,在回家的路上，我推测蜜蜂可能找不到家了。,在回家的路上“我

23、”有什么推测？结果怎样？,不仅十分准确地写出了作者的心理，还体现了作者善于思考的品质。,推测,过渡句承上启下,没等我跨进家门，小女儿就冲过来，脸红红的，看上去很激动。她高声喊道：“有两只蜜蜂飞回来了！它们两点四十分回到蜂窝里，肚皮下面还沾着花粉呢。”,可以初步断定蜜蜂具有辨别方向的能力。,说明作者对实验过程记录详细精准，体现了作者严谨的科学态度。,两点四十分,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路

24、,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路

25、,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,傍晚时，我亲眼看到另外三只飞了回来，身上也都带着花粉。 第二天我检查蜂窝时，发现了十五只身上有白色记号的蜜蜂。,看蜂窝

26、解疑问,这样，二十只左右的蜜蜂，至少有十五只没有迷失方向，准确无误地回到了家。尽管它们逆风而飞，沿途都是一些陌生的景物，但它们确确实实飞回来了。,实验结果,表示转折关系的关联词，表现出作者对蜜蜂认路本领的赞叹之情。,但,尽管,尽管,尽力,jn,jn,蜜蜂靠的不是超常的记忆力，而是一种我无法解释的本能。,3.作者得出了什么结论？在文中找一找。,你知道蜜蜂靠的是什么本能吗？,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路

27、,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路

28、,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,蜜蜂是凭借什么来辨别方向、认识路线的呢？,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元

29、成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元

30、成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元

31、成才路,状元成才路,状元成才路,状元成才路,状元成才路,蜜蜂,产生兴趣蜜蜂真的有辨认方向的能力,实验研究,捉蜜蜂做记号,得出结论“我”无法解释的本能,放蜜蜂测能力,看蜂窝解疑问,善于观察严谨求实,本文真实地纪录了作者为证实蜜蜂有没有辨认方向的能力而进行的一次实验，表明了作者严谨的科学态度和求实的科学作风。,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元

32、成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元

33、成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,勤劳的蜜蜂 人们常说“勤劳的蜜蜂”，这一点也不夸张。在晴朗的天气里，蜜蜂总是在野外忙碌着。,蜜蜂是勤劳的昆虫。为了酿造五百克蜜，一只蜜蜂通常要飞行十几万公里，相当于绕地球三

34、四圈。蜜蜂一找到蜜源，就会飞回密巢，告诉同伴关于蜜源的信息。如果蜜源离蜂箱不到一百米,他们就在蜂巢上方跳“圆舞”；如果蜜源在蜂箱一百米以外，它们就跳“摆尾舞”。,蜜蜂对人类的第一大贡献是为植物授粉。当蜜蜂从一朵花飞到另一朵花采集花粉时，就起到了植物授粉的作用。据研究，果树、蔬菜及其他农作物，有蜜蜂授粉，可以使产量提高20%35%，朱德元帅曾经称赞小蜜蜂是“月下老人”。蜜蜂对人类的第二大贡献，是为人类酿造和提供了蜂蜜、蜂王浆、蜂胶等自然界中完美的天然保健品！,zhn qu w w bo ku （ ） （ ） yn t m shn jin ch （ ） （ ） （ ）,准确无误,包括,沿途,一、看拼音，写词语。,陌生,检查,二、课内阅读。,我叫小女儿在蜂窝旁等着，自己带着蜜蜂，走了四公里路，打开纸袋，在它们身上做了白色记号，然后放了出来。 也就是说，在大约三刻钟的时间里，那两只小蜜蜂飞了四公里路，这还包