英语八下unit-4《lesson-23-the-internet-good-or-bad》课件2

Lesson23TheInternet—GoodorBad?Lesson23Wheredothesestudentslive?TheyliveinAfrica.WiththeInternet,wecouldmeettheminseconds.What’sthis?It’stheSouthPole.It’sfarawayfromus.ButtheInternetcaneventakeusthere.Wheredothesestudentslive?WEvery____hastwosides.Everythinghastwosides(_________or____________),soistheInternet.coinadvantagesdisadvantagesEvery____hastwosides.Advantages:InmanywaystheInternetmakesourlifeeasyandsimple.Advantages:InmanywaystheSpendingtoomuchtimeonlineisharmful

topeople’shealth.Disadvantages:SpendingtoomuchDisadvantDisadvantages:ItmaycausepeoplebelesssocialwithfamilyandfriendsDisadvantages:ItmaycausepeoDisadvantages:Asidefrom(除此以外)that,Somepeopleattacktheweborstealothers’personalinformation,evenbankinginformation.SowemustusetheInternetproperly.Disadvantages:Asidefrom(除此以外)Readthelessonandwritetrue(T)orfalse(F).1.Peoplecanconnectandshareinformationinminutes.()2.TheInternetcanmakeourlifeeasierandsimplerinmanyways.()3.Everycoinhasthreesides.()4.TheInternetisausefultoolsowecanletittakeupallofourtime.()FFTFsecondstwocan’tReadthelessonandwritetrueReadParagraph1and2andfindoutthegoodthingsabouttheInternet.*Wecanuseitto_______and______information__________.*Inmanywaysitmakeslife_______and________.*Ithelpsusgetthingsdone______________.*It______________theworldtous.*Itmakesit______tostayintouchifafriendlives______________.connectsharemorequicklyopensupeasyfarawayeasiersimplerinsecondsReadParagraph1and2andfinReadParagraph3andfindoutthebadthingsabouttheInternet.*Spending_________timeonlineis_______topeople’s______.*Itmayeven____themtobe____________withfamilyandfriends.*Somepeople_______theweboruseitto______other’s________information,even_________information.toomuchharmfulattackstealpersonalbankingcauselesssocialhealthReadParagraph3andfindoutReadParagraph4andgivesomeadviceforjuniorhighstudents.*Don’tlettheInternet___________allofyourtime.*UsetheInternet_________and__________.takeupproperlycarefullyReadParagraph4andgivesomeListentothedialogueandtickthecorrectanswers.1.WhatareLiMingandWangMeitalkingabout?Theirschoolproject.Theirhomework.2.WhydoesWangMeithinktheInternetisgood?Shecanchatwithherfriendseasily.ShecanwatchTVprograms.3.LiMingthinkstheyshouldusetheInternet___.carefullyandfreelyproperlyandcarefullyListentothedialogueandticMostparentsandteachersthinkitisabadthingtoplaycomputergames.Theythinkitisawasteoftimeandmoney.Becauseofcomputergames,somestudentsdon’tcareabouttheirstudyanymore.Playingtoomanycomputergamesisalsobadforchildren'seyesandhealth.However,computergamescanalsobringsomebenefits.Theycanhelppeopleinmanywaysifpeoplespendpropertimeonit.Somecomputergamescanimprovepeople'sabilityofthinking.Theycanmakepeoplethinkindifferentways.Playingcomputergamescanalsohelppeoplebefamiliarwiththekeyboard.Ifpeoplearefamiliarwiththekeyboard,theycantypefast.MoreandmorepeoplebegintodesigneducationalCD-ROM.Theyhopepeoplecangetsomeknowledgewhiletheyareplayingcomputergames.MostparentsandteachersPlayingcomputergamesAdvantagesDisadvantages*Somecomputergamescan_________people'sabilityof_________.*Playingcomputergamescanalsohelppeoplebe_________withthe_________and_______fast.*Itisawasteof_______and_______.*Somestudentsdon’t____________theirstudyanymore.*Itisalsobadforchildren's________and________.improvethinkingfamiliarkeyboardtypetimemoneycareabouteyeshealth.PlayingcomputergamesAdvantagPairWork:*WorkinpairstotalkaboutthelistinLet’sDoIt!No.3.*Askthepairstosharetheiranswerswithclass.Discuss.PairWork:

Homework:WriteapassageforjuniorhighstudentsandgivethemsomeadviceaboutwhattodoandnotdoontheInternet.

Homework:Thank

you!Thankyou!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-4《lesson-23-the-internet-good-or-bad》课件2

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-4《lesson-23-the-internet-good-or-bad》课件2英语八下unit-4《lesson-23-the-internet-good-or-bad》课件2英语八下unit-4《lesson-23-the-internet-good-or-bad》课件2英语八下unit-4《lesson-23-the-internet-good-or-bad》课件2英语八下unit-4《lesson-23-the-internet-good-or-bad》课件2英语八下unit-4《lesson-23-the-internet-good-or-bad》课件2英语八下unit-4《lesson-23-the-internet-good-or-bad》课件2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-4《lesson-23-the-internet-good-or-bad》课件2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-4《lesson-23-the-internet-good-or-bad》课件2英语八下unit-4《lesson-23-the-internet-good-or-bad》课件2

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-4《lesson-23-the-internet-good-or-bad》课件2英语八下unit-4《lesson-23-the-internet-good-or-bad》课件2英语八下unit-4《lesson-23-the-internet-good-or-bad》课件2英语八下unit-4《lesson-23-the-internet-good-or-bad》课件2英语八下unit-4《lesson-23-the-internet-good-or-bad》课件2英语八下unit-4《lesson-23-the-internet-good-or-bad》课件2英语八下unit-4《lesson-23-the-internet-good-or-bad》课件2

英语八下unit-4《lesson-23-the-internet-good-or-bad》课件2英语八下unit-4《lesson-23-the-internet-good-or-bad》课件2英语八下unit-4《lesson-23-the-internet-good-or-bad》课件2英语八下unit-4《lesson-23-the-internet-good-or-bad》课件2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-4《lesson-2