冀教 八下 英语 Unit 4《Lesson 23 The Internet-Good or Bad》课件

Unit4TheInternetConnectsUsLesson23TheInternet—GoodorBad?同学们，上一课学习的单词你们都掌握了吗？现在大家来检验一下，点击下面的音频开始听写吧！词汇听写课文导入NowmoreandmorepeopleusetheInternet.Whatdoyouthinkofit?Doyoulikeit?课文呈现THINKABOUTIT•WhyaresomeparentsworriedabouttheirkidsusingtheInternet?•DoestheInternetmakelifesimpler？How?•AreyouusingtheInterneteveryday?•Doyouthinkit’sgoodorbad?体裁：议论文课文呈现文章结构：总—分—总

↓↓↓第1段总结概括，并提出论点。第2、3段围绕中心论点分述网络的优缺点。第4段作出总结：正确使用网络。课文呈现TheInternethaschangedtheworld.Peopleareabletoconnectandshareinformationinseconds.①

However，theInternethasadvantagesanddisadvantages.②Wheredoyouwanttogo？WiththeInternet，youcouldmeetthisstudent.ShelivesinAfrica.温馨提示：此符号表示“考点精讲”链接。词语赏析：(画“”处)inseconds词组恰如其分地表述了网络速度之快，同时也体现了网络的特点。课文呈现Someoftheadvantagesaretrulywonderful.Inmanywaysitmakeslifeeasierandsimpler.Ithelpsusgetthingsdonemorequickly.

③

Itopensuptheworldtous.Andifafriendlivesfaraway,theInternetmakesiteasytostayintouch.④课文呈现Buteverycoinhastwosides.Someofthedisadvantagescanbecomerealproblemsifwedon’ttakecare.Spendingtoomuchtimeonlineisharmfultopeople’shealth.

⑤Itmayevencausethemtobelesssocialwithfamilyandfriends.⑥

Asidefromthat，somepeopleattacktheweborusetheInternettostealothers’personalinformation，

⑦

evenbankinginformation.句子：(画“”处)用谚语作为段落的开头，能起到承上启下的作用，同时谚语也具有很强的说服力且语言精炼得体。词语赏析：(画“”处)even一词两次在同一段落中出现，起强调作用，表递进关系，突出强调了不正确使用网络的坏处。课文呈现TheInternetcanbeausefultool，butdon’tletittakeupallofyourtime.

⑧UsetheInternetproperlyandcarefullyanditcanmakeyourlifemorecolourful.Howfardoyouwanttogo？TheInternetcaneventakeyoutotheSouthPole！课文呈现互联网给我们生活带来了变化。任何事物都有两面性，本文说明了互联网好的方面和不好的方面，告诉我们要善于使用网络，让网络成为为我们服务的仆人，而不是主宰我们的主人。Overthepast20years,theInternethasgreatlyinfluencedourworldand__________1(change)ourlives.TheInternetmakesitmuch__________2(easy)forpeopletosearchforinformation.__________3example,whenwewriteahistoryreport,wedon’thavetogotothelibrary.changedeasierFor课文呈现Wecanfind_____________4(information)aboutworldleadersandhistoricaleventsondifferent__________5(website).Everythingwewanttoknowcanbefoundattheclickofabutton.TheInternethelpsustostay__________6(connect)tofamily,friendsandtheworldaroundus.Notlongago,wewrotelettersandwaitedweeksforareply.informationwebsitesconnected课文呈现Today,whenweuseQQ,wesendandreceive__________7(message)acrossthousandsofmilesinafewseconds.AlthoughtheInternethasmadeourworldbetterinmanyways,insomeways,itcanbeabadinfluence.ThereisalotoffalseinformationontheInternet.Itisimportantnottobelieve__________8

wereadontheInternet.messageseverything课文呈现Someteenagersspendtoomuchtimein__________9(play)Internetgames.Theymaylosefocusontheirstudies.Therearemillions__________10interestingsitestovisitandsomanywonderfulthingstodoonline.HowcouldwelivewithouttheInternetnowadays?ButtrytolettheInternetbeyourgoodservant,notyourbadmaster!playingof课文呈现Readthelessonandfillinthetable.GoodthingsabouttheInternetBadthingsabouttheInternetItmakeslifeeasierandsimpler.Ithelpsusgetthingsdonemorequickly.Itopensuptheworldtous.Itmakesiteasytostayintouchifafriendlivesfaraway.Spendingtoomuchtimeonlineisharmfultopeople'shealth.Itmayevencausepeopletobelesssocialwithfamilyandfriends.SomepeopleattacktheweborusetheInternettostealothers'personalinformation,evenbankinginformation.课文呈现2)Listentothedialogueandtickthecorrectanswers.1．WhatareLiMingandWangMeitalkingabout?□Theirschoolproject.□Theirhomework.2．WhydoesWangMeithinktheInternetisgood?□Shecanchatwithherfriendseasily.□ShecanwatchTVprograms.3．LiMingthinkstheyshouldusetheInternet________．□carefullyandfreely□properlyandcarefully√√√听力材料LiMing:Ourschoolprojectis“TheInternet—goodorbad?”Whatdoyouthink,WangMei?WangMei:Ithinkit’sgoodbecauseIcanchatwithmyfriendseasily.IcanshareinformationandevenuseittolearnEnglish.Whataboutyou?LiMing:Idon’tthinkit’sgoodforourhealthifwespendtoomuchtimeonline.Somestudentsliketoplaygamesanddon’tstudyhard.WeshouldusetheInternetproperlyandcarefully.课文呈现3)ThefollowingarethethingsyoucandoontheInternet.TicktheonesthatyouthinkareOKforjuniorhighstudentsandgiveyourreasons.□E­mailwithfriendsandfamily.□Chatonlinewithfriends.□Downloaddocumentsfromstrangers.□Writeblogs.□E­mailwithstrangers.□Openattachmentsfromstrangers.□Send，receiveorpostphotoswithfriends.□Playonlinegamesforawholeday.□Downloadprograms.□Stayonlineafter10:00p.m.考点精讲①Peopleareabletoconnectandshareinformationinseconds.beableto能够e.g.Workhard,andyouwillbeabletogotoagooduniversity.努力学习，你就能上个好大学。考点1beableto+动词原形，表示“有能力做某事”。考点精讲beableto(1)强调通过努力而获得的能力；(2)有人称、时态和数的变化；(3)可用于多种时态。can(1)强调自身已具备的能力；(2)无人称和数的变化，且只有一般现在时(can)和一般过去时(could)两种时态；(3)can还可以表示请求和允许，而beableto无此用法。辨析：beableto与can考点精讲e.g.Theyareabletowinthecompetition.他们能够赢得比赛。HewillbeabletosingthesonginEnglishinafewminutes,too.几分钟后，他将也能用英语唱这首歌。WecanspeakEnglish.我们会说英语。Tomcouldswimwhenhewas10yearsold.汤姆10岁时就会游泳了。考点精讲中考在线1：我会拼写这个单词。[绥化]_____________________________________________Icanspelltheword./Iamabletospelltheword.考点精讲inseconds在很短的时间内e.g.Waithere,andIwillbebackinseconds.在这儿等着，我很快就会回来。拓展：second作名词，还有“秒”的意思；作序数词时意为“第二”。e.g.60secondsmake1minute.60秒等于1分钟。TheYellowRiveristhesecondlongestriverinChina.黄河是中国的第二长河。考点2片刻，瞬间返回温馨提示:可返回原文考点精讲②However,theInternethasadvantagesanddisadvantages.advantage/əd'vɑːntɪdʒ/n.(athingthathelpsyoutobebetterormoresuccessfulthanotherpeople)优势；有利条件；有利因素e.g.Livinginabigcityhasmanyadvantages.住在大城市里有很多有利条件。Weshouldtakeadvantageofeverychance.我们应该利用每一次机会。考点3反义词为disadvantagen.不利条件takeadvantageof...利用……考点精讲中考在线2：In1964,YuanLongpingfoundanaturalhybridriceplantthathadmanyaoverothers.[苏州]dvantages返回考点精讲③Ithelpsusgetthingsdonemorequickly.getsth.done使某事被做e.g.Wouldyoupleasehelpmegetthedoorlocked?请问你能帮我把门锁了吗？Mywatchdidn’twork,soIgotitrepaired.我的手表坏了,所以我修理了它。WegotMothertoprepareourlunch.我们让母亲做我们的午餐。考点4get表示“使；让”,过去分词done在此作宾语补足语。getsb.todosth.意为“让某人做某事”。返回考点精讲④Andifafriendlivesfaraway,theInternetmakesiteasytostayintouch.faraway遥远faraway意为“遥远”,表示距离,在句中作状语或表语,有时away可以省略。e.g.Mygrandparentslivefaraway.我爷爷奶奶住得很远。考点5考点精讲Helivesfarawayfromtheschool.他住得离学校很远。Myhomeis5milesawayfromtheschool.我家离学校有五英里远。如果表示“离……很远”,则用“farawayfrom...”。小贴士：如果away前有具体的数字修饰时,则不用far。考点精讲[高频]stayintouch保持联系e.g.Ihavestayed/keptintouchwithhimsinceweparted.自从我们分开以后,我与他一直保持联系。Pleasestay/keepinclosetouchwithme.请与我保持密切联系。拓展：getintouchwith…和……取得联系losetouch失去联系outoftouch失去联系考点6同义短语为keepintouch。其中touch作名词,意为“联系”。返回考点精讲⑤Spendingtoomuchtimeonlineisharmfultopeople’shealth.beharmfulto对……有害e.g.WatchingTVtoomuchisharmfultoyoureyes.看太多电视对你的眼睛有害。考点7相当于doharmto...它的反义短语为begoodfor...意为“对……有好处”。考点精讲中考在线3：Alittlewinewillnotbe_______toyourhealth.Justdon’tdrinktoomuch.[无锡]A.helpfulB.helplessC.harmfulD.harmlessC返回考点精讲⑥Itmayevencausethemtobelesssocialwithfamilyandfriends.cause/kɔːz/v.使发生；引起；造成e.g.Hisabsencecausedmemuchtrouble.他的缺席给我造成了许多麻烦。Whatwasthecauseoftheaccident?造成这一事故的原因是什么？考点8causesb.sth.=causesth.to/forsb.给某人带来某事causen.

原因；起因；理由；动机考点精讲cause起因；指引起某种后果的起因。cause常与of连用,即“thecauseof...”。Thecauseoftheaccidentwasthathedrovetoofast.事故的起因是他开车太快。reason理由,原因；指决定做某一件事或采取某一行动的理由,由此而得出结论或解释。reason常与for连用,即“thereasonfor...”ThereasonformyabsencewasthatIwasill.我缺席的原因是我生病了。辨析：cause与reason考点精讲中考在线4：Everyyeardrivingafterdrinkingwine_______alotoftrafficaccidents.[内江]A.happensB.providesC.causesC考点精讲less/les/adj.&adv.(little的比较级)更少的(地)；更小的(地)n.较少量；较小的部分e.g.Thefilmwaslessinterestingthanthebook.这部电影不如书有趣。考点9考点精讲①less更少的,作形容词讲时,常用来修饰不可数名词。是little的比较级。Wehavelesscoffeethanyouhave.我们的咖啡比你们的少。一语辨异：Weshoulddomoreworkwithfewerpeopleandlessmoney.我们应该用更少的人和更少的钱做更多的工作。②fewer更少的,作形容词讲时,常用来修饰可数名词复数。是few的比较级。Theyhavefewereggsthanyouhave.他们的鸡蛋比你们的少。辨析：less与fewer考点精讲中考在线5：—Canyougivemesomeadviceonhowtobeslimmer?—Eat______meatand_______cakes.[常州]A.less;lessB.fewer;fewerC.less;fewerD.fewer;lessC返回考点精讲⑦Asidefromthat,somepeopleattacktheweborusetheInternettostealothers’personalin