试题习题、尽在百度仔细审题、认真作答选修八Unit2[基础回顾]Ⅰ.单句语法填空(导学号02516340)1．Thestudentsareforbidden,unlesstheyhavespecialpasses,tostay(stay)outafter11p．m.2．Hehasastrongobjectiontosmoking(smoke)inpublicplaces,especiallywithfemalespresent.3．Whybothergoing/togo(go)abroadtostudy,whentherearesomanygooduniversitiesathome?4．Ourstrengthisfrommanysources,butmostofall,weoweoursuccesstothecreativityofourpeople.5．Struck(strike)bystrongsnowstorms,theareafacedseverewaterandelectricityshortage.6．Thebestwaytoundertakebigprojectsistoforce(force)themintoyourschedule.7．Ihaveasweettoothandcan'tresisteating(eat)chocolateandicecream.8．Doyouknowanydifferences(differ)betweenBritishEnglishandAmericanEnglish?9．LivinginthecentralAustraliandeserthasitsproblems,ofwhichobtaining(obtain)waterisnottheleast.10．Wehadourfurnituremovedtothenewhousewhenthedecoration(decorate)ofthehouseisfinished.Ⅱ.单句改错(每句一错)(导学号02516341)1．Youcangoswimminginconditionthatyoudon'tgotoofarfromtheriverbank.in→on2．Somerulesshouldbemadetoforbidstudentsofsmoking.of→from3．Itsuddenlystrucktomethatweoughttomakeanewplan.去掉第一个to或struck→occurred4．Nooneknowsexacthowtheearthbeganasithappenedsolongago.exact→exactly5．Owetoalackoffunds,theprojectwillnotcontinuenextyear.Owe→OwingⅢ.佳句写作(导学号02516342)1．这张桌子的问题是放在我们屋里太大了.(Theproblemof...isthat...)答案：Theproblemofthedeskisthatit'stoobigforourroom.2．我们决不会推迟这个计划的执行.(onnocondition放在句首)答案：Onnoconditionwillweputoffcarryingouttheplan.试题习题、尽在百度仔细审题、认真作答3．据报道，在那个国家很多工人在罢工.(beonstrike)答案：Itisreportedthatmanyworkersareonstrikeinthatcountry.4．那对孪生兄弟在性格方面互不相同.(differ)答案：Thetwinsdifferfromeachotherincharacter.5．我反对别人那样跟我说话.(objectto)答案：Iobjecttobeingspokentolikethat.[技能提升]Ⅰ.阅读理解(导学号02516343)(2018·唐山模拟)Anewmethodofdeliveringdata,whichusesthevisiblespectrum(光谱)ratherthanradiowaves,hasbeentestedinaworkingoffice.Li-ficandeliverInternetaccess100timesfasterthantraditionalWi-fi,offeringspeedsofupto1Gbps(gigabitpersecond).Itrequiresalightsource,suchasastandardLEDbulb,anInternetconnectionandaphotodetector.ItwastestedthisweekusingaLi-fi-enabledlightbulbtotransmitdataatthespeedof1Gbps.Laboratorytestshaveshowntheoreticalspeedsofupto224Gpbs.Whentestedinanoffice,itallowedworkerstoaccesstheInternetandinanindustrialspace，whereitprovidedasmartlightingsolution.ChiefexecutiveDeepakSolankisaidthatthetechnologycouldreachconsumers“withinthreeorfouryears”．ThetermLi-fiwasfirstcoinedbyProf.Haas,whodemonstratedthetechnologyataTedconferencein2011.Histalk,whichhasnowbeenwatchednearlytwomilliontimes,showedanLEDlampstreamingvideo.Prof.Haasdescribedafuturewhenbillionsoflightbulbscouldbecomewirelesshotspots.OneofthebigadvantagesofLi-fiisthefactthat,unlikeWi-fi,itdoesnotinterferewithotherradiosignals,socouldbeusedonaircraftandinotherplaceswhereinterferenceisanissue.However,thetechnologyalsohasitsdrawbacks－mostnotablythefactthatitcannotbeusedoutdoorsindirectsunlight,becausethatwouldinterferewithitssignal.Neithercanthetechnologytravelthroughwallssoinitialuseislikelytobelimitedtosomeplaces.[语篇解读]本文是一篇说明文.本文主要是向读者介绍了一种被称作Li-fi的新的传播数据的方式.1．Whichofthefollowingwillbethebesttitleofthispassage?A．Thedrawbacksoftraditi...
