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选修八Unit2[基础回顾]Ⅰ.单句语法填空(导学号02516340)1．Thestudentsareforbidden,unlesstheyhavespecialpasses,tostay(stay)outaf

ter11p．m.2．Hehasastrongobjectiontosmoking(smoke)inpublicplaces,especiallywithfemalespresent.3．Whybothergoing/togo(go)abroad

tostudy,whentherearesomanygooduniversitiesathome?4．Ourstrengthisfrommanysources,butmostofall,weoweoursuccesstothecreativityo

fourpeople.5．Struck(strike)bystrongsnowstorms,theareafacedseverewaterandelectricityshortage.6．Thebestwaytoundertakebigprojectsistofor

ce(force)themintoyourschedule.7．Ihaveasweettoothandcan'tresisteating(eat)chocolateandicecream.8．Doyouknowan

ydifferences(differ)betweenBritishEnglishandAmericanEnglish?9．LivinginthecentralAustraliandeserthasitsproblems,ofwhichob

taining(obtain)waterisnottheleast.10．Wehadourfurnituremovedtothenewhousewhenthedecoration(decorate)ofthehouseisfinished.Ⅱ.

单句改错(每句一错)(导学号02516341)1．Youcangoswimminginconditionthatyoudon'tgotoofarfromtheriverbank.in→on2．Somerulesshouldbemadetoforbidstudentso

fsmoking.of→from3．Itsuddenlystrucktomethatweoughttomakeanewplan.去掉第一个to或struck→occurred4．Nooneknowsexacthowtheearthbeganasithappened

solongago.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：Onnocond

itionwillweputoffcarryingouttheplan.3．据报道，在那个国家很多工人在罢工。(beonstrike)答案：Itisreportedthatmanyworkersareonstrikeinthat

country.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)ratherthanradio

waves,hasbeentestedinaworkingoffice.Li-ficandeliverInternetaccess100timesfasterthantraditionalWi-fi,offeringspeedsofupto1

Gbps(gigabitpersecond).Itrequiresalightsource,suchasastandardLEDbulb,anInternetconnectionandaphotodetec

tor.ItwastestedthisweekusingaLi-fi-enabledlightbulbtotransmitdataatthespeedof1Gbps.Laboratorytestshave

showntheoreticalspeedsofupto224Gpbs.Whentestedinanoffice,itallowedworkerstoaccesstheInternetandinanindustrialspace，whereitprovidedasmartligh

tingsolution.ChiefexecutiveDeepakSolankisaidthatthetechnologycouldreachconsumers“withinthreeorfourye

ars”．ThetermLi-fiwasfirstcoinedbyProf.Haas,whodemonstratedthetechnologyataTedconferencein2011.Histal

k,whichhasnowbeenwatchednearlytwomilliontimes,showedanLEDlampstreamingvideo.Prof.Haasdescribedafuturewhenbillionsoflightbulbscou

ldbecomewirelesshotspots.OneofthebigadvantagesofLi-fiisthefactthat,unlikeWi-fi,itdoesnotinterferewithotherradiosignals,socouldbeusedo

naircraftandinotherplaceswhereinterferenceisanissue.However,thetechnologyalsohasitsdrawbacks－mostnot

ablythefactthatitcannotbeusedoutdoorsindirectsunlight,becausethatwouldinterferewithitssignal.Neithercanthetechnologytravelthroughwallssoinitialuse

islikelytobelimitedtosomeplaces.[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．Whichofthefollowingwil

lbethebesttitleofthispassage?A．ThedrawbacksoftraditionalWi-fiB．TheadvantagesofLi-fiC．Li-fi100timesfasterthanWi-fiD．Li-fiandWi

-fi解析：C[主旨大意题。通读全文内容可判断出，本文主要介绍了一种被称作Li-fi的新的传播数据的方式，它的传播速度比Wi-fi快一百倍。故选C。]2．WhichofthefollowingstatementsisTRUE?A．TraditionalWi-ficanreachspe

edsofupto1Gbps.B．Thenewtechnologyhasbeenputintousebyconsumers.C．DeepakSolankishowedthenewtechnologyatac

onferencein2011.D．Li-fican'tbeusedwithoutalightsource,anInternetconnectionoraphotodetector.解析：D[细节理解题。根据第二段中的“Itrequire

salightsource，suchasastandardLEDbulb，anInternetconnectionandaphotodetector.”可知，D项所述内容正确。故选D。]3．Thispassagemaybe________.A．apieceofne

wsB．asciencefictionC．afashionmagazineD．aproductbrochure解析：A[推理判断题。根据本文内容可判断。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。由此可推断出，本文最有可能是一则新闻。]Ⅱ.阅读填句(七选五)(导学号02516344)根据短文内容，从短文后的选项中选出可以填入空白处的最佳选项。选项中有两项为多余选项。(2018·安徽合肥第二次质量检测)Every

bodyknowstheimportanceofdrinkingenoughwater.Asweallknow，drinkingwaterbenefitsyourskin，musclesandorgans.__1__Themajorreasonforthatisrelatedtohuman

biologicalneeds.Whenyou'reababy，you're75percentwater.Then，astheyearsgethigher，yougetdrier.__2__Ithelpsyouloseweight,accordi

ngtoastudyfromtheUniversityofBirmingham.Theresearchersfoundthatdrinking500mlofwaterthirtyminutesbeforeamealhelpedparticipantslose10morepoundstha

nthosewhodidnot.__3__Allparticipantswereadvisedtoimprovetheirdietandphysicalactivitylevels.84overweightadultswerei

nvolved.Amongthem41weretoldto“preload”withwater，while43weretoldtocontroltheirwaterintakebeforeeating.After12weeks，

theparticipantsinstructedto“preload”withwaterlost2.87poundsmorethanthoseinthecontrolgrouponaverage.Inaddition,theparticipa

ntspreloadingwithwaterbeforeeachoftheirthreemainmealseverydaylost9.48poundsoverthe12weeks.__4__Dr.Hele

nParretti,alecturerattheUniversityofBirmingham，hadthistosayofthestudy:__5__Justdrinking500mlofwater,threetime

saday,beforeyourmainmealsmayhelpreduceyourweight...andthiscouldbeaneasywayforweightloss.Furthermore,itcanbesignificantforanindividualtolo

seextraweight,makingapotentialcontributiontopublichealth.A．Anotherreasontodrinkwaterisrighthere.B．Thestudybeganwithaweightmanagementco

nsultation.C．Thebeautyofthesefindingsisthatlosingweightissimple.D．Butnoteveryonecangetaccesstotapwaterinsomeareas.E．Italsohelpspr

eventcertaindiseasesandimproveyourmood.F．Incontrast,thosepreloadingonceadayornever,lostjust1.76pounds.G．Sokidsshoulddrinkmorewaterinsteadofcoketokee

phealthy.[语篇解读]本文讲述了一个研究发现：三餐前喝水有助于减肥。1．解析：E[根据上句“众所周知，喝水对你的皮肤、肌肉和器官有好处”可知，空处指喝水的另一个好处，故选E项“它还能帮助你预防某

些疾病，改善心情”。E项中的It指代上文中的“drinkingwater”。]2．解析：A[根据本段开头的“Themajorreasonforthat”和下文内容可知，空处讲的是喝水的另一个原因。故选A“饮水的另一原因在这儿”。]3．解析：B[本段讲述研究结果“饭前半小时喝水可

以帮助减肥”。空处应选B项“这项研究始于一个体重咨询”引出下文实验的具体过程。]4．解析：F[根据上句“另外，每天三餐前都喝水的实验者12周期间减掉了9.48磅”可知，选F项，与空前一句进行对比，即“相反，那些一天

只在一顿饭前喝水或不喝水的人只减掉了1.76磅”。]5．解析：C[根据空前的“hadthistosayofthestudy”和上文的实验可知，选C“这些发现的美好之处在于(告诉我们)减肥很简单”。]Ⅲ.语法填空(导学号025

16345)(2018·银川检测)FromMondaytoFriday,mostpeoplearebusyworkingorstudying,butintheeveningsandonweekendstheyare

freetorelaxandenjoy1.________(they).SomewatchTV2.________gotothecinema.Otherstakepartinsports.Therearemanydifferentways3

.________(spend)theirsparetime.Almosteveryonehassomekindofhobbies.Itmaybeanythingfromcollectingstampsto4._

_______(make)modelairplanes.Somehobbiesareexpensive,5.________othersdon'tcostanythingatall.Some6.________(collect)areworthalotofmoney.O

thersarevaluableonlytotheowners.Iknow7.________manwhohasacoincollectionworth$250.Hewasveryhappyabouthispurchaseand8

.________(think)thepricewasreasonable.Ontheotherhand,myyoungestbrothercollectsmatchboxes.Hehasalmost600ofthembutIdoubtiftheyareworthanymoney.How

ever，tomybrothertheyare9.________(extreme)valuable.Nothingmakeshim10.________(happy)thantofindanewmatchboxforhiscollection.Th

isiswhatahobbymeans,Iguess.Itissomethingweliketodoinoursparetimesimplyforfun.Thevalueindollarsisnotimportant.Wedoitforthepleasureitgives.答案：1.th

emselves2.or3.tospend4.making5．but/while6.collections7.a8.thought9．extremely10.happier