冀教 八下 英語 Unit 4《Lesson 23 The Internet-Good or Bad》課件

Unit4TheInternetConnectsUsLesson23TheInternet—GoodorBad?同學(xué)們，上一課學(xué)習(xí)的單詞你們都掌握了嗎？現(xiàn)在大家來檢驗(yàn)一下，點(diǎn)擊下面的音頻開始聽寫吧！詞匯聽寫課文導(dǎo)入NowmoreandmorepeopleusetheInternet.Whatdoyouthinkofit?Doyoulikeit?課文呈現(xiàn)THINKABOUTIT?WhyaresomeparentsworriedabouttheirkidsusingtheInternet??DoestheInternetmakelifesimpler？How??AreyouusingtheInterneteveryday??Doyouthinkit’sgoodorbad?體裁：議論文課文呈現(xiàn)文章結(jié)構(gòu)：總—分—總

↓↓↓第1段總結(jié)概括，并提出論點(diǎn)。第2、3段圍繞中心論點(diǎn)分述網(wǎng)絡(luò)的優(yōu)缺點(diǎn)。第4段作出總結(jié)：正確使用網(wǎng)絡(luò)。課文呈現(xiàn)TheInternethaschangedtheworld.Peopleareabletoconnectandshareinformationinseconds.①

However，theInternethasadvantagesanddisadvantages.②Wheredoyouwanttogo？WiththeInternet，youcouldmeetthisstudent.ShelivesinAfrica.溫馨提示：此符號(hào)表示“考點(diǎn)精講”鏈接。詞語賞析：(畫“”處)inseconds詞組恰如其分地表述了網(wǎng)絡(luò)速度之快，同時(shí)也體現(xiàn)了網(wǎng)絡(luò)的特點(diǎn)。課文呈現(xiàn)Someoftheadvantagesaretrulywonderful.Inmanywaysitmakeslifeeasierandsimpler.Ithelpsusgetthingsdonemorequickly.

③

Itopensuptheworldtous.Andifafriendlivesfaraway,theInternetmakesiteasytostayintouch.④課文呈現(xiàn)Buteverycoinhastwosides.Someofthedisadvantagescanbecomerealproblemsifwedon’ttakecare.Spendingtoomuchtimeonlineisharmfultopeople’shealth.

⑤Itmayevencausethemtobelesssocialwithfamilyandfriends.⑥

Asidefromthat，somepeopleattacktheweborusetheInternettostealothers’personalinformation，

⑦

evenbankinginformation.句子：(畫“”處)用諺語作為段落的開頭，能起到承上啟下的作用，同時(shí)諺語也具有很強(qiáng)的說服力且語言精煉得體。詞語賞析：(畫“”處)even一詞兩次在同一段落中出現(xiàn)，起強(qiáng)調(diào)作用，表遞進(jìn)關(guān)系，突出強(qiáng)調(diào)了不正確使用網(wǎng)絡(luò)的壞處。課文呈現(xiàn)TheInternetcanbeausefultool，butdon’tletittakeupallofyourtime.

⑧UsetheInternetproperlyandcarefullyanditcanmakeyourlifemorecolourful.Howfardoyouwanttogo？TheInternetcaneventakeyoutotheSouthPole！課文呈現(xiàn)互聯(lián)網(wǎng)給我們生活帶來了變化。任何事物都有兩面性，本文說明了互聯(lián)網(wǎng)好的方面和不好的方面，告訴我們要善于使用網(wǎng)絡(luò)，讓網(wǎng)絡(luò)成為為我們服務(wù)的仆人，而不是主宰我們的主人。Overthepast20years,theInternethasgreatlyinfluencedourworldand__________1(change)ourlives.TheInternetmakesitmuch__________2(easy)forpeopletosearchforinformation.__________3example,whenwewriteahistoryreport,wedon’thavetogotothelibrary.changedeasierFor課文呈現(xiàn)Wecanfind_____________4(information)aboutworldleadersandhistoricaleventsondifferent__________5(website).Everythingwewanttoknowcanbefoundattheclickofabutton.TheInternethelpsustostay__________6(connect)tofamily,friendsandtheworldaroundus.Notlongago,wewrotelettersandwaitedweeksforareply.informationwebsitesconnected課文呈現(xiàn)Today,whenweuseQQ,wesendandreceive__________7(message)acrossthousandsofmilesinafewseconds.AlthoughtheInternethasmadeourworldbetterinmanyways,insomeways,itcanbeabadinfluence.ThereisalotoffalseinformationontheInternet.Itisimportantnottobelieve__________8

wereadontheInternet.messageseverything課文呈現(xiàn)Someteenagersspendtoomuchtimein__________9(play)Internetgames.Theymaylosefocusontheirstudies.Therearemillions__________10interestingsitestovisitandsomanywonderfulthingstodoonline.HowcouldwelivewithouttheInternetnowadays?ButtrytolettheInternetbeyourgoodservant,notyourbadmaster!playingof課文呈現(xiàn)Readthelessonandfillinthetable.GoodthingsabouttheInternetBadthingsabouttheInternetItmakeslifeeasierandsimpler.Ithelpsusgetthingsdonemorequickly.Itopensuptheworldtous.Itmakesiteasytostayintouchifafriendlivesfaraway.Spendingtoomuchtimeonlineisharmfultopeople'shealth.Itmayevencausepeopletobelesssocialwithfamilyandfriends.SomepeopleattacktheweborusetheInternettostealothers'personalinformation,evenbankinginformation.課文呈現(xiàn)2)Listentothedialogueandtickthecorrectanswers.1．WhatareLiMingandWangMeitalkingabout?□Theirschoolproject.□Theirhomework.2．WhydoesWangMeithinktheInternetisgood?□Shecanchatwithherfriendseasily.□ShecanwatchTVprograms.3．LiMingthinkstheyshouldusetheInternet________．□carefullyandfreely□properlyandcarefully√√√聽力材料LiMing:Ourschoolprojectis“TheInternet—goodorbad?”Whatdoyouthink,WangMei?WangMei:Ithinkit’sgoodbecauseIcanchatwithmyfriendseasily.IcanshareinformationandevenuseittolearnEnglish.Whataboutyou?LiMing:Idon’tthinkit’sgoodforourhealthifwespendtoomuchtimeonline.Somestudentsliketoplaygamesanddon’tstudyhard.WeshouldusetheInternetproperlyandcarefully.課文呈現(xiàn)3)ThefollowingarethethingsyoucandoontheInternet.TicktheonesthatyouthinkareOKforjuniorhighstudentsandgiveyourreasons.□E-mailwithfriendsandfamily.□Chatonlinewithfriends.□Downloaddocumentsfromstrangers.□Writeblogs.□E-mailwithstrangers.□Openattachmentsfromstrangers.□Send，receiveorpostphotoswithfriends.□Playonlinegamesforawholeday.□Downloadprograms.□Stayonlineafter10:00p.m.考點(diǎn)精講①Peopleareabletoconnectandshareinformationinseconds.beableto能夠e.g.Workhard,andyouwillbeabletogotoagooduniversity.努力學(xué)習(xí)，你就能上個(gè)好大學(xué)?？键c(diǎn)1beableto+動(dòng)詞原形，表示“有能力做某事”?？键c(diǎn)精講beableto(1)強(qiáng)調(diào)通過努力而獲得的能力；(2)有人稱、時(shí)態(tài)和數(shù)的變化；(3)可用于多種時(shí)態(tài)。can(1)強(qiáng)調(diào)自身已具備的能力；(2)無人稱和數(shù)的變化，且只有一般現(xiàn)在時(shí)(can)和一般過去時(shí)(could)兩種時(shí)態(tài)；(3)can還可以表示請(qǐng)求和允許，而beableto無此用法。辨析：beableto與can考點(diǎn)精講e.g.Theyareabletowinthecompetition.他們能夠贏得比賽。HewillbeabletosingthesonginEnglishinafewminutes,too.幾分鐘后，他將也能用英語唱這首歌。WecanspeakEnglish.我們會(huì)說英語。Tomcouldswimwhenhewas10yearsold.湯姆10歲時(shí)就會(huì)游泳了?？键c(diǎn)精講中考在線1：我會(huì)拼寫這個(gè)單詞。[綏化]_____________________________________________Icanspelltheword./Iamabletospelltheword.考點(diǎn)精講inseconds在很短的時(shí)間內(nèi)e.g.Waithere,andIwillbebackinseconds.在這兒等著，我很快就會(huì)回來。拓展：second作名詞，還有“秒”的意思；作序數(shù)詞時(shí)意為“第二”。e.g.60secondsmake1minute.60秒等于1分鐘。TheYellowRiveristhesecondlongestriverinChina.黃河是中國的第二長河?？键c(diǎn)2片刻，瞬間返回溫馨提示:可返回原文考點(diǎn)精講②However,theInternethasadvantagesanddisadvantages.advantage/?d'vɑ?nt?d?/n.(athingthathelpsyoutobebetterormoresuccessfulthanotherpeople)優(yōu)勢(shì)；有利條件；有利因素e.g.Livinginabigcityhasmanyadvantages.住在大城市里有很多有利條件。Weshouldtakeadvantageofeverychance.我們應(yīng)該利用每一次機(jī)會(huì)。考點(diǎn)3反義詞為disadvantagen.不利條件takeadvantageof...利用……考點(diǎn)精講中考在線2：In1964,YuanLongpingfoundanaturalhybridriceplantthathadmanyaoverothers.[蘇州]dvantages返回考點(diǎn)精講③Ithelpsusgetthingsdonemorequickly.getsth.done使某事被做e.g.Wouldyoupleasehelpmegetthedoorlocked?請(qǐng)問你能幫我把門鎖了嗎？Mywatchdidn’twork,soIgotitrepaired.我的手表壞了,所以我修理了它。WegotMothertoprepareourlunch.我們讓母親做我們的午餐?？键c(diǎn)4get表示“使；讓”,過去分詞done在此作賓語補(bǔ)足語。getsb.todosth.意為“讓某人做某事”。返回考點(diǎn)精講④Andifafriendlivesfaraway,theInternetmakesiteasytostayintouch.faraway遙遠(yuǎn)faraway意為“遙遠(yuǎn)”,表示距離,在句中作狀語或表語,有時(shí)away可以省略。e.g.Mygrandparentslivefaraway.我爺爺奶奶住得很遠(yuǎn)?？键c(diǎn)5考點(diǎn)精講Helivesfarawayfromtheschool.他住得離學(xué)校很遠(yuǎn)。Myhomeis5milesawayfromtheschool.我家離學(xué)校有五英里遠(yuǎn)。如果表示“離……很遠(yuǎn)”,則用“farawayfrom...”。小貼士：如果away前有具體的數(shù)字修飾時(shí),則不用far?？键c(diǎn)精講[高頻]stayintouch保持聯(lián)系e.g.Ihavestayed/keptintouchwithhimsinceweparted.自從我們分開以后,我與他一直保持聯(lián)系。Pleasestay/keepinclosetouchwithme.請(qǐng)與我保持密切聯(lián)系。拓展：getintouchwith…和……取得聯(lián)系losetouch失去聯(lián)系outoftouch失去聯(lián)系考點(diǎn)6同義短語為keepintouch。其中touch作名詞,意為“聯(lián)系”。返回考點(diǎn)精講⑤Spendingtoomuchtimeonlineisharmfultopeople’shealth.beharmfulto對(duì)……有害e.g.WatchingTVtoomuchisharmfultoyoureyes.看太多電視對(duì)你的眼睛有害?？键c(diǎn)7相當(dāng)于doharmto...它的反義短語為begoodfor...意為“對(duì)……有好處”。考點(diǎn)精講中考在線3：Alittlewinewillnotbe_______toyourhealth.Justdon’tdrinktoomuch.[無錫]A.helpfulB.helplessC.harmfulD.harmlessC返回考點(diǎn)精講⑥Itmayevencausethemtobelesssocialwithfamilyandfriends.cause/k??z/v.使發(fā)生；引起；造成e.g.Hisabsencecausedmemuchtrouble.他的缺席給我造成了許多麻煩。Whatwasthecauseoftheaccident?造成這一事故的原因是什么？考點(diǎn)8causesb.sth.=causesth.to/forsb.給某人帶來某事causen.

原因；起因；理由；動(dòng)機(jī)考點(diǎn)精講cause起因；指引起某種后果的起因。cause常與of連用,即“thecauseof...”。Thecauseoftheaccidentwasthathedrovetoofast.事故的起因是他開車太快。reason理由,原因；指決定做某一件事或采取某一行動(dòng)的理由,由此而得出結(jié)論或解釋。reason常與for連用,即“thereasonfor...”ThereasonformyabsencewasthatIwasill.我缺席的原因是我生病了。辨析：cause與reason考點(diǎn)精講中考在線4：Everyyeardrivingafterdrinkingwine_______alotoftrafficaccidents.[內(nèi)江]A.happensB.providesC.causesC考點(diǎn)精講less/les/adj.&adv.(little的比較級(jí))更少的(地)；更小的(地)n.較少量；較小的部分e.g.Thefilmwaslessinterestingthanthebook.這部電影不如書有趣。考點(diǎn)9考點(diǎn)精講①less更少的,作形容詞講時(shí),常用來修飾不可數(shù)名詞。是little的比較級(jí)。Wehavelesscoffeethanyouhave.我們的咖啡比你們的少。一語辨異：Weshoulddomoreworkwithfewerpeopleandlessmoney.我們應(yīng)該用更少的人和更少的錢做更多的工作。②fewer更少的,作形容詞講時(shí),常用來修飾可數(shù)名詞復(fù)數(shù)。是few的比較級(jí)。Theyhavefewereggsthanyouhave.他們的雞蛋比你們的少。辨析：less與fewer考點(diǎn)精講中考在線5：—Canyougivemesomeadviceonhowtobeslimmer?—Eat______meatand_______cakes.[常州]A.less;lessB.fewer;fewerC.less;fewerD.fewer;lessC返回考點(diǎn)精講⑦Asidefromthat,somepeopleattacktheweborusetheInternettostealothers’personalin