单击此处编辑母版标题样式,单击此处编辑母版文本样式,第二级,第三级,第四级,第五级,*,*,单击此处编辑母版标题样式,单击此处编辑母版文本样式,第二级,第三级,第四级,第五级,*,*,单击此处编辑母版标题样式,单击此处编辑母版文本样式,第二级,第三级,第四级,第五级,*,*,单击此处编辑母版标题样式,单击此处编辑母版文本样式,第二级,第三级,第四级,第五级,*,*,单击此处编辑母版标题样式,单击此处编辑母版文本样式,第二级,第三级,第四级,第五级,*,*,单击此处编辑母版标题样式,单击此处编辑母版文本样式,第二级,第三级,第四级,第五级,*,*,单击此处编辑母版标题样式,单击此处编辑母版文本样式,第二级,第三级,第四级,第五级,*,*,单击此处编辑母版标题样式,单击此处编辑母版文本样式,第二级,第三级,第四级,第五级,*,*,单击此处编辑母版标题样式,单击此处编辑母版文本样式,第二级,第三级,第四级,第五级,*,*,单击此处编辑母版标题样式,单击此处编辑母版文本样式,第二级,第三级,第四级,第五级,*,*,单击此处编辑母版标题样式,单击此处编辑母版文本样式,第二级,第三级,第四级,第五级,*,*,单击此处编辑母版标题样式,单击此处编辑母版文本样式,第二级,第三级,第四级,第五级,*,*,单击此处编辑母版标题样式,单击此处编辑母版文本样式,第二级,第三级,第四级,第五级,*,单击此处编辑母版标题样式,单击此处编辑母版文本样式,第二级,第三级,第四级,第五级,*,单击此处编辑母版标题样式,单击此处编辑母版文本样式,第二级,第三级,第四级,第五级,*,单击此处编辑母版标题样式,单击此处编辑母版文本样式,第二级,第三级,第四级,第五级,*,单击此处编辑母版标题样式,单击此处编辑母版文本样式,第二级,第三级,第四级,第五级,*,单击此处编辑母版标题样式,单击此处编辑母版文本样式,第二级,第三级,第四级,第五级,*,单击此处编辑母版标题样式,单击此处编辑母版文本样式,第二级,第三级,第四级,第五级,*,单击此处编辑母版标题样式,单击此处编辑母版文本样式,第二级,第三级,第四级,第五级,*,单击此处编辑母版标题样式,单击此处编辑母版文本样式,第二级,第三级,第四级,第五级,*,单击此处编辑母版标题样式,单击此处编辑母版文本样式,第二级,第三级,第四级,第五级,*,单击此处编辑母版标题样式,单击此处编辑母版文本样式,第二级,第三级,第四级,第五级,*,单击此处编辑母版标题样式,单击此处编辑母版文本样式,第二级,第三级,第四级,第五级,*,单击此处编辑母版标题样式,单击此处编辑母版文本样式,第二级,第三级,第四级,第五级,*,单击此处编辑母版标题样式,单击此处编辑母版文本样式,第二级,第三级,第四级,第五级,*,单击此处编辑母版标题样式,单击此处编辑母版文本样式,第二级,第三级,第四级,第五级,*,单击此处编辑母版标题样式,单击此处编辑母版文本样式,第二级,第三级,第四级,第五级,*,单击此处编辑母版标题样式,单击此处编辑母版文本样式,第二级,第三级,第四级,第五级,*,单击此处编辑母版标题样式,单击此处编辑母版文本样式,第二级,第三级,第四级,第五级,*,单击此处编辑母版标题样式,单击此处编辑母版文本样式,第二级,第三级,第四级,第五级,*,单击此处编辑母版标题样式,单击此处编辑母版文本样式,第二级,第三级,第四级,第五级,*,单击此处编辑母版标题样式,单击此处编辑母版文本样式,第二级,第三级,第四级,第五级,*,单击此处编辑母版标题样式,单击此处编辑母版文本样式,第二级,第三级,第四级,第五级,*,单击此处编辑母版标题样式,单击此处编辑母版文本样式,第二级,第三级,第四级,第五级,*,单击此处编辑母版标题样式,单击此处编辑母版文本样式,第二级,第三级,第四级,第五级,*,单击此处编辑母版标题样式,单击此处编辑母版文本样式,第二级,第三级,第四级,第五级,*,单击此处编辑母版标题样式,单击此处编辑母版文本样式,第二级,第三级,第四级,第五级,*,单击此处编辑母版标题样式,单击此处编辑母版文本样式,第二级,第三级,第四级,第五级,*,单击此处编辑母版标题样式,单击此处编辑母版文本样式,第二级,第三级,第四级,第五级,*,单击此处编辑母版标题样式,单击此处编辑母版文本样式,第二级,第三级,第四级,第五级,*,单击此处编辑母版标题样式,单击此处编辑母版文本样式,第二级,第三级,第四级,第五级,*,单击此处编辑母版标题样式,单击此处编辑母版文本样式,第二级,第三级,第四级,第五级,*,单击此处编辑母版标题样式,单击此处编辑母版文本样式,第二级,第三级,第四级,第五级,*,单击此处编辑母版标题样式,单击此处编辑母版文本样式,第二级,第三级,第四级,第五级,*,单击此处编辑母版标题样式,单击此处编辑母版文本样式,第二级,第三级,第四级,第五级,*,单击此处编辑母版标题样式,单击此处编辑母版文本样式,第二级,第三级,第四级,第五级,*,单击此处编辑母版标题样式,单击此处编辑母版文本样式,第二级,第三级,第四级,第五级,*,单击此处编辑母版文本样式,第二级,*,单击此处编辑母版标题样式,2015,单击此处编辑母版文本样式,第二级,单击此处编辑母版标题样式,*,Lesson 23,The InternetGood or Bad?,Lesson 23,Where do these students live?,They live in Africa.,With the Internet, we could meet them,in seconds,.,Whats this?,Its the South Pole. Its,far away,from us .,But the Internet can even take us there.,Where do these students live?W,Every _ has two sides. Everything,has two sides( _or _),so is the Internet.,coin,advantages,disadvantages,Every _ has two sides.,Advantages:,In many ways the Internet makes our life easy and,simple,.,Advantages: In many ways the,Spending too much,time online is,harmful,to peoples health.,Disadvantages:,Spending too much Disadvant,Disadvantages:,It may,cause,people be,less,social with family and friends,Disadvantages:It may cause peo,Disadvantages:,Aside from,(,除此以外,) that, Some people,attack,the,web,or,steal,others,personal,information, even,banking,information.,So we must use the Internet,properly,.,Disadvantages:Aside from(除此以外),Read the lesson and write true (T) or false (F).,1.People can connect and share information in minutes.( ),2.The Internet can make our life easier and simpler in many ways .( ),3.Every coin has three sides.( ),4.The Internet is a useful tool so we can let it take up all of our time.( ),F,F,T,F,seconds,two,cant,Read the lesson and write true,Read Paragraph 1 and 2 and find out the good things about the Internet.,*We can use it to_ and _ information _ _.,* In many ways it makes life _ and _.,*It helps us get things done_ _.,*It _ _the world to us.,*It makes it _to stay in touch if a friend lives,_ _.,connect,share,more quickly,opens up,easy,far away,easier simpler,in seconds,Read Paragraph 1 and 2 and fin,Read Paragraph 3 and find out the bad things about the Internet.,*Spending _ _ time online is _ to peoples _.,*It may even _ them to be _ _with family and friends.,*Some people _ the web or use it to _ others _ information, even _ information.,too much harmful,attack steal,personal banking,cause less social,health,Read Paragraph 3 and find out,Read Paragraph 4 and give some advice for junior high students.,*Dont let the Internet _ _ all of your time.,*Use the Internet _ and _.,take up,properly carefully,Read Paragraph 4 and give some,Listen to the dialogue and tick the correct answers.,1.What are Li Ming and Wang Mei talking about?,Their school project.,Their homework.,2.Why does Wang Mei think the Internet is good?,She can chat with her friends easily.,She can watch TV programs.,3.Li Ming thinks they should use the Internet_.,carefully and freely,properly and carefully,Listen to the dialogue and tic,Most parents and teachers think it is a bad thing to play computer games. They think it is a waste of time and money. Because of computer games, some students dont care about their study any more. Playing too many computer games is also bad for childrens eyes and health.,However, computer games can also bring some benefits. They can help people in many ways if people spend proper time on it. Some computer games can improve peoples ability of thinking. They can make people think in different ways. Playing computer games can also help people be familiar with the keyboard. If people are familiar with the keyboard, they can type fast.,More and more people begin to design educational CD-ROM. They hope people can get some knowledge while they are playing computer games.,Most parents and teachers,Playing computer games,Advantages,Disadvantages,*,Some computer games can _peoples ability of _.,*,Playing computer games can also help people be _with the _and _ fast.,*,It is a waste of _and _.,*,Some students don,t _ _ their study any more.,*,It is also bad for childrens _ and _.,improve,thinking,familiar,keyboard,type,time,money,care about,eyes,health.,Playing computer gamesAdvantag,Pair Work:,*Work in pairs to talk about the list in,Lets Do It! No.3,.,*Ask the pairs to share their answers with class. Discuss.,Pair Work:,Homework:,Write a passage for junior high students and give them some advice about what to do and not do on the Internet.,Homework:,Thank,you!,Thank you!,21.,蔚蓝色的宝库,(冀教版)六年级科学上册课件,21.蔚蓝色的宝库(冀教版)六年级科学上册课件,猜一猜,家住大海,走向岸来,.,太阳一晒,身体变白,.,盐,肚中藏宝,浩瀚无边,入口苦涩,性情多变。,大海,猜一猜家住大海,走向岸来.太阳一晒,身体变白. 盐肚中藏宝,英语八下unit-4lesson-23-the-internet-good-or-badppt课件,地球表面大部分是蔚蓝色的海洋,占地球表面积的70%还多,其中面积,最大,的是,太平洋,,面积,最小,的是,北冰洋,,我们国家靠着太平洋。,地球表面大部分是蔚蓝色的海洋,占地球表面积的70%,认识美丽的海洋,海洋是生命的摇篮,资源的宝库。对于海洋,我们究竟了解多少?海洋里有哪些重要的资源呢?让我们一起来揭开蓝色海洋的面纱,探索海洋的奥秘吧!,认识美丽的海洋 海洋是生命的摇篮,资源的宝库。对于海,英语八下unit-4lesson-23-the-internet-good-or-badppt课件,英语八下unit-4lesson-23-the-internet-good-or-badppt课件,英语八下unit-4lesson-23-the-internet-good-or-badppt课件,英语八下unit-4lesson-23-the-internet-good-or-badppt课件,英语八下unit-4lesson-23-the-internet-good-or-badppt课件,英语八下unit-4lesson-23-the-internet-good-or-badppt课件,英语八下unit-4lesson-23-the-internet-good-or-badppt课件,丰富的海洋资源,丰富的海洋资源,丰富的海洋资源,大陆架,一、什么是大陆架?,丰富的海洋资源大陆架一、什么是大陆架?,大陆架是陆地在海中的延续,我国的、,渤海,、,黄海,和,东海,的大陆架极其宽阔,其中蕴藏着丰富的,石油,和,天然气,矿藏。根据估算,我国的海洋石油储量可达,22亿,吨,,天然气储量达,480亿,立方米,。,大陆架是陆地在海中的延续,我国的、渤海、黄海,英语八下unit-4lesson-23-the-internet-good-or-badppt课件,丰富的海洋资源,矿物质,丰富的海洋资源矿物质,英语八下unit-4lesson-23-the-internet-good-or-badppt课件,英语八下unit-4lesson-23-the-internet-good-or-badppt课件,海水中含有大量的,矿物质,,最多的物质是,盐,。据计算,如果将地球上海水中的盐全部提炼出来,均匀地铺撒在地球表面,可铺成一个约40米厚的盐层。,海水中含有大量的矿物质,最多的物质是盐。据计,丰富的海洋资源,砂矿,海上采砂,砂 石,丰富的海洋资源砂矿海上采砂砂 石www.xkb1.co,我国的滨海砂矿储量十分丰富。到目前,已发现滨海砂矿,20多,种,各类砂矿床,191,个,,总探明储量达,16亿多,吨,矿种达,60多,种。其中,具有工业价值的海砂矿有,13种,,包括,钛铁矿,、,锆石,、,金红石,、,独居石,、,磷钇矿,、,磁铁矿,和,砂锡,等。,我国的滨海砂矿储量十分丰富。到目前,已发,在独具魅力的蓝色水域中,生活着大量的海洋生物,其中海洋动物,17万,余种,海洋植物约有,2.5万,余种。,丰富的海洋资源,生物资源,在独具魅力的蓝色水域中,生活,英语八下unit-4lesson-23-the-internet-good-or-badppt课件,英语八下unit-4lesson-23-the-internet-good-or-badppt课件,英语八下unit-4lesson-23-the-internet-good-or-badppt课件,英语八下unit-4lesson-23-the-internet-good-or-badppt课件,英语八下unit-4lesson-23-the-internet-good-or-badppt课件,英语八下unit-4lesson-23-the-internet-good-or-badppt课件,英语八下unit-4lesson-23-the-internet-good-or-badppt课件,英语八下unit-4lesson-23-the-internet-good-or-badppt课件,英语八下unit-4lesson-23-the-internet-good-or-badppt课件,英语八下unit-4lesson-23-the-internet-good-or-badppt课件,英语八下unit-4lesson-23-the-internet-good-or-badppt课件,巨鲸,巨鲸,海星,海星,乌贼,乌贼,鹦鹉螺,鹦鹉螺,夜光鱼,夜光鱼,英语八下unit-4lesson-23-the-internet-good-or-badppt课件,海豹,海豹,海豹,海豹,海参,海参,海葵,海葵,英语八下unit-4lesson-23-the-internet-good-or-badppt课件,英语八下unit-4lesson-23-the-internet-good-or-badppt课件,珊瑚,珊瑚,英语八下unit-4lesson-23-the-internet-good-or-badppt课件,英语八下unit-4lesson-23-the-internet-good-or-badppt课件,藻 类,藻 类,藻 类,藻 类,英语八下unit-4lesson-23-the-internet-good-or-badppt课件,英语八下unit-4lesson-23-the-internet-good-or-badppt课件,1、能量资源:,潮汐能、波浪能、海流能、海水,温差能。,2、生物资源:,海洋藻类资源、海洋动物资源。,3、矿产资源:,海底石油、天然气、滨海砂矿等。,4,、空间资源:,海岸与海岛空间资源、海面与洋面空间资源、海洋水层空间资源、海底空间资源等。,此外,海水本身也是一种资源,海水中溶解的物质资源等。,海洋资源的分类,1、能量资源:潮汐能、波浪能、海流能、海水 海洋资源的分类,辽阔的海洋蕴藏着丰富的生物、矿物、化学、能源等各种自然资源,堪称是地球上一座巨大的“蓝色资源宝库”。在人类对石油、天然气等不可再生资源的需求越来越大的情况下,海底石油、天然气成了海洋资源争夺的重点。,辽阔的海洋蕴藏着丰富的生物、矿物、化学、能源等各种,海洋是资源的宝库,生命的摇篮。,海洋是资源的宝库,生命的摇篮。,