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小学语文四年级上册《19奇妙的国际互联网》ppt课件(1)

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19奇妙的国际互联网
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邮递 查阅 蜘蛛 付款 无所不有 丰富多彩 息息相关 快捷方便 国际互联网______,内 容______ ,与我们的 生活______ ,这真是 太奇妙了。 认真默读课文第2、3自然段, 想一想,划一划,互联网的样子、 工作、功能的奇妙之处在哪? In this academic year, I have served as a political subject in three classes at Grade 2. A school year, I have been serious 样子 工作 功能 你可以想象一下,假如有一只 巨型的蜘蛛,织成了一张 团团包 住整个地球的“ 大网 ”,那该是怎 样的情景啊!国际互联网就像这张 包住地球的“大网”。不过,这张“ 网”是通过无数条“线”把亿万台电 脑连接起来的。 你可以想象一下,假如有一只 巨型的蜘蛛,织成了一张 团团包 住整个地球的“ 大网 ”,那该是怎 样的情景啊!国际互联网就像这张 包住地球的“大网”。不过,这张“ 网”是通过无数条“线”把亿万台电 脑连接起来的。 In this academic year, I have served as a political subject in three classes at Grade 2. A school year, I have been serious 网“网” 你可以想象一下,假如有一只 巨型的蜘蛛,织成了一张 团团包 住整个地球的“ 大网 ”,那该是怎 样的情景啊!国际互联网就像这张 包住地球的“大网”。不过,这张“ 网”是通过无数条“线”把亿万台电 脑连接起来的。 引号: 1、表示直接引用 2、表示特殊含义需要强调 3、表示特定称谓 “网 ” “ 线” 这里的“网”不是一般的网,而 是指( );这里的“线”也不是指 普通的棉线丝线,这些“线”有的是看 得见的 ( )、( ),也有的 是看不见的( ) 这些“线”上飞速流动着文 字、图像、声音,它们能够在几 秒钟内跨过万水千山,传到世界 各地的电脑上。 这些“线”上飞速流动着文 字、图像、声音,它们能够在几 秒钟内跨过万水千山,传到世界 各地的电脑上。 比如说,我们从北京的 一台电脑上发一封信到悉尼 ,只要几秒钟,对方就能收 到,这比普通的邮递不知快 了多少倍。 In this academic year, I have served as a political subject in three classes at Grade 2. A school year, I have been serious In this academic year, I have served as a political subject in three classes at Grade 2. A school year, I have been serious 北京 悉尼 8951公里 几秒钟 比如说,我们从北京的 一台电脑上发一封信到悉尼 ,只要几秒钟,对方就能收 到,这比普通的邮递不知快 了多少倍。 比如说,我们从北京的 一台电脑上发一封信到悉尼 ,只要几秒钟,对方就能收 到,这比普通的邮递不知快 了多少倍。 In this academic year, I have served as a political subject in three classes at Grade 2. A school year, I have been serious 国际互联网是怎么工作的呢?国际互连网 是靠看得见的( )、( ) 看不见的( )来飞速传递文字 、声音、图像等信息的。 电缆光缆 无线电波 我们还可以在网上和亲朋 好友通电话电脑里不仅能传 来对方的声音,还能显现他 的形象。虽然对方远在天涯 ,却让人感觉近在咫尺。 虽然对方远在天涯, 却让人感觉近在咫尺。 海内存知己,天涯若比邻。海内存知己,天涯若比邻。 —— —— 王勃王勃 In this academic year, I have served as a political subject in three classes at Grade 2. A school year, I have been serious 国际互联网似乎把一个庞大的地球都 缩小了,我们现在生活的世界真像一 个“地球村”。 说一说:地球真的 变小了吗? In this academic year, I have served as a political subject in three classes at Grade 2. A school year, I have been serious In this academic year, I have served as a political subject in three classes at Grade 2. A school year, I have been serious ““地地 球球 村村”” In this academic year, I have served as a political subject in three classes at Grade 2. A school year, I have been serious 人们可以在网上读新闻、听音乐、看电影, 可以和天南海北的朋友聊天、游戏; 可以在家里听老师上课,或者在网上查资 料,并向国内外专家请教; 还可以在家里上班、开会; 甚至可以足不出户逛“网上商场”,用“电子钱 包”付款,让商店把东西送到家中…… In this academic year, I have served as a political subject in three classes at Grade 2. A school year, I have been serious 人们可以在网上读新闻、听音乐、看电影, 可以和天南海北的朋友聊天、游戏; 可以在家里听老师上课,或者在网上查资 料,并向国内外专家请教; 还可以在家里上班、开会; 甚至可以足不出户逛“网上商场”,用“电子钱 包”付款,让商店把东西送到家中…… 省略号有什 么作用呢? In this academic year, I have served as a political subject in three classes at Grade 2. A school year, I have been serious 看新闻 In this academic year, I have served as a political subject in three classes at Grade 2. A school year, I have been serious 看病 In this academic year, I have served as a political subject in three classes at Grade 2. A school year, I have been serious 查阅资料 In this academic year, I have served as a political subject in three classes at Grade 2. A school year, I have been serious 学习 In this academic year, I have served as a political subject in three classes at Grade 2. A school year, I have been serious 购物 In this academic year, I have served as a political subject in three classes at Grade 2. A school year, I have been serious 国际互联网上的 内容非常丰富, 各种知识、各类 信息无所不有。 In this academic year, I have served as a political subject in three classes at Grade 2. A school year, I have been serious 国际互联网上的内容非常丰 富,各种知识、各类信息无所不 有。人们可以在网上读新闻、听 音乐、看电影,可以和天南海北 的朋友聊天、游戏;可以在家里 听老师上课,或者在网上查阅资 料,并向国内外专家请教;还可 以在家里上班、开会;甚至可以 足不出户逛“网上商场”,用“ 电子钱包”付款,让商店把东西 送到家中…… 国际互联网上的内容非常丰 富,各种知识、各类信息无所不 有。人们可以在网上读新闻、听 音乐、看电影,可以和天南海北 的朋友聊天、游戏;可以在家里 听老师上课,或者在网上查阅资 料,并向国内外专家请教;还可 以在家里上班、开会;甚至可以 足不出户逛“网上商场”,用“ 电子钱包”付款,让商店把东西 送到家中…… In this academic year, I have served as a political subject in three classes at Grade 2. A school year, I have been serious 可以这样说,国际互 联网和我们息息相关。有 了这张“网”,我们的生 活更加快捷方便,丰富多 彩。 可以这样说,国际互 联网和我们息息相 关。有了这张“网”,我们的生活更加快捷方便,丰富多彩 国际互联网越来越来越 ______,内容越来越 ______ ,与我们的生 活越来越______ ,也 将越来越______了。 In this academic year, I have served as a political subject in three classes at Grade 2. A school year, I have been serious 哼,我 不服气 ! In this academic year, I have served as a political subject in three classes at Grade 2. A school year, I have been serious 讨论——国际互联网是不是 百利而无一害; In this academic year, I have served as a political subject in three classes at Grade 2. A school year, I have been serious 师傅,我原以为 自己是斗战胜佛,神 通广大,一个筋斗十 万八千里,会七十二 变。可是,国际互联 网太奇妙了……孩们 孩子们努力学习吧! 路就在你的脚下,未 来的社会是高科技的 社会,千里之行始于 足下。 In this academic year, I have served as a political subject in three classes at Grade 2. A school year, I have been serious
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