2024-2025学年八年级英语下册Unit4TheInternetConnectsUsLessons19-21课时作业新版冀教版

Unit4Lessons19~21Ⅰ.完形填空Computersarenowascommonlyusedinbusinessasthetelephone.Therefore,it'simportantthatpeopleknowhowto1themefficiently(有效地).Now,youandyourwholeteamare2todothisonyourcomputerinthesimplestway—takingouronlinecourses.Andthenyoucanlearnandpractice3yourself.

Thepersonwho4onthescreenactsasyourteacher,guidingyouthroughthetasks5explainingeverything.Thenmoredifficultexercisesallowyoutopracticethethingsyouhavelearnedand6yourunderstanding.

7coursesareexcellentvalue(价值)—only69.99pounds.Youcan8yourselfmoneyifyoubuythecompletecollectionofsevencourses.Thisisnowavailableattheretail(零售)9of410pounds.Youcanmakea10savingof10%byorderingthecompletecollectionwithinthenextthirtydays.

()1.A.make B.use C.travel D.imagine()2.A.able B.lazy C.strict D.terrible()3.A.to B.in C.by D.on()4.A.appears B.disappears C.invents D.hides()5.A.if B.but C.and D.nor()6.A.test B.miss C.kill D.throw()7.A.These B.Each C.Every D.Either()8.A.change B.save C.teach D.steal()9.A.money B.worth C.shop D.price()10.A.thinner B.further C.simpler D.easierⅡ.阅读理解It'sreportedthattwenty-oneonlinevideoplatformshadintroducedananti-addictionsystem(防沉迷系统)bytheendofMay,2024.Thissystemaimstoprotectteenagersandmakesureoftheirhealthydevelopment.Threeshortvideoplatforms—Douyin,KuaishouandHuoshan,havealreadystartedtheanti-addictionsystemsinceMarch,2024.Underthesystem,whenusersopenanonlinevideoappforthefirsttimeeachday,apop-upwindow(弹窗)willdirectthemtoateenagermode.Themodewilllimittheusers'onlinetimeandaccesstovideocontent(查阅的权利).SincethesystemwasintroducedinMarch,2024,around460millionusershavereceiveddailyreminders,and52.6millionofthemhavechosentheteenagermode.Atthesametime,videoplatformsareaskedtoimprovetheirmonitoringoftheuploadedvideocontent.Theyshouldofferusersfilms,TVseriesandvideosofqualityandeducationalcontent.Theofficialsaysthattheanti-addictionsystemwillalsobeusedinonlinelivestreamingplatforms(直播平台)inthefuture.Nowadays,Chineseyoungpeoplespendalotoftimeontheirsmartphoneseveryday.Entertainmentlikesocialmessaging,surfingandlivestreaminghasbecomeabigpartoftheirlives.Therefore,itisveryimportanttoprotectthemfromharmfulcontent.()11.Whywasananti-addictionsystemintroduced?A.Tomakeshortvideoplatformsmorepopular.B.TogiveteenagersmorefreedomontheInternet.C.Tomakeshortvideoplatformsmakelessmoney.D.Tomakesureofteenagers'healthydevelopment.()12.Whichofthefollowingvideoplatformsisn'tmentioned?A.Douyin. B.Kuaishou.C.Huoshan. D.Douyu.()13.Whatisapop-upwindowusedtodo?A.Tolimittheusers'onlinetime.B.Tolimitaccesstovideocontent.C.Todirectuserstoateenagermode.D.Todirectuserstoopenavideoapp.()14.What'sthemeaningoftheunderlinedword“reminders”?A.提示 B.化解 C.行为 D.发展()15.What'sthebesttitleofthepassage?A.Ananti-addictionsystemB.ThreeshortvideoplatformsC.OnlinelivestreamingplatformsD.Whatharmfulvideoplatforms!

答案Ⅰ.1.B2.A句意:现在你和你的整个团队能在电脑上以最简洁的方式做这件事——上网上课程。able意为“有实力的”;lazy意为“懒散的”;strict意为“严格的”;terrible意为“可怕的”。beableto意为“能够”。故选A。3.C4.A5.C6.A句意:然后更难的练习允许你练习你学到的东西,并且测试你的理解力。test意为“测试”;miss意为“错过;惦念”;kill意为“杀死”;throw意为“扔”。由句意可知选A。7.A8.B句意:假如你买了全套七门课,你可以省下自己的钱。change意为“变更”;save意为“节约”;teach意为“教”;steal意为“偷”。由句意可知选B。9.D10.BⅡ.[主旨大意]据报道,截至2024年5月底,已有21家网络视频平台推出了一套防沉迷系统。这一系统旨在爱护青少年,确保他们的健康成长。11.D细微环节理解题。由第一段的最终一句“Thissystemaimstoprotectteenagersandmakesureoftheirhealthydevelopment.”可知,之所以推出防沉迷系统,是为了确保青少年的健康成长。故选D。12.D细微环节理解题。由其次段可知,本文只提到了抖音、快手和火山三个短视频平台,但没提到斗鱼。故选D。13.C细微环节理解题。由第三段第一句“…apop-upwindowwilldirectthemtoate