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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)outafter11p．m.2．Hehasastrongobjectiontosmoki

ng(smoke)inpublicplaces,especiallywithfemalespresent.3．Whybothergoing/togo(go)abroadtostudy,whentherearesomanygooduniversitiesathome?4．Ourstrength

isfrommanysources,butmostofall,weoweoursuccesstothecreativityofourpeople.5．Struck(strike)bystrongsnowstorms,theareafacedseverewa

terandelectricityshortage.6．Thebestwaytoundertakebigprojectsistoforce(force)themintoyourschedule.7．Ihaveasweettoothandcan'tresist

eating(eat)chocolateandicecream.8．Doyouknowanydifferences(differ)betweenBritishEnglishandAmericanEnglish?9．Living

inthecentralAustraliandeserthasitsproblems,ofwhichobtaining(obtain)waterisnottheleast.10．Wehadourfurnituremovedtothe

newhousewhenthedecoration(decorate)ofthehouseisfinished.Ⅱ.单句改错(每句一错)(导学号02516341)1．Youcangoswimminginconditionthatyoudon'tgotoofarfromtheriverban

k.in→on2．Somerulesshouldbemadetoforbidstudentsofsmoking.of→from3．Itsuddenlystrucktomethatweoughttomakeanewplan.去掉第一个to或struck→occurred4．No

oneknowsexacthowtheearthbeganasithappenedsolongago.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。(onnocond

ition放在句首)答案：Onnoconditionwillweputoffcarryingouttheplan.3．据报道，在那个国家很多工人在罢工。(beonstrike)答案：Itisreportedthatmanyworkersareonstrikeinthatco

untry.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：Iobjectt

obeingspokentolikethat.[技能提升]Ⅰ.阅读理解(导学号02516343)(2018·唐山模拟)Anewmethodofdeliveringdata,whichusesthevisiblespectrum(光谱)ratherthanradiowaves,hasb

eentestedinaworkingoffice.Li-ficandeliverInternetaccess100timesfasterthantraditionalWi-fi,offeringspeedsof

upto1Gbps(gigabitpersecond).Itrequiresalightsource,suchasastandardLEDbulb,anInternetconnectionandaphotodetector.

ItwastestedthisweekusingaLi-fi-enabledlightbulbtotransmitdataatthespeedof1Gbps.Laboratorytestshaveshowntheoreticalspeedsofupto224Gpbs.When

testedinanoffice,itallowedworkerstoaccesstheInternetandinanindustrialspace，whereitprovidedasmartlightingsolution.Chiefe

xecutiveDeepakSolankisaidthatthetechnologycouldreachconsumers“withinthreeorfouryears”．ThetermLi-fiwasfirstcoinedbyProf.Haas,whodemonstrat

edthetechnologyataTedconferencein2011.Histalk,whichhasnowbeenwatchednearlytwomilliontimes,showedanLEDlampstreamingvideo.Prof.Haasdescrib

edafuturewhenbillionsoflightbulbscouldbecomewirelesshotspots.OneofthebigadvantagesofLi-fiisthefactthat,unlikeWi-fi,itdoesnotinterfer

ewithotherradiosignals,socouldbeusedonaircraftandinotherplaceswhereinterferenceisanissue.However,thetec

hnologyalsohasitsdrawbacks－mostnotablythefactthatitcannotbeusedoutdoorsindirectsunlight,becausethatwouldinterferewithitssignal.Neithercanthetech

nologytravelthroughwallssoinitialuseislikelytobelimitedtosomeplaces.[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L

i-fi的新的传播数据的方式。1．Whichofthefollowingwillbethebesttitleofthispassage?A．ThedrawbacksoftraditionalWi-fiB．TheadvantagesofLi-fiC．Li-fi100timesfasterthanW

i-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-

ficanreachspeedsofupto1Gbps.B．Thenewtechnologyhasbeenputintousebyconsumers.C．DeepakSolankishowedthenewtechnologyataconferencein2011.D．Li

-fican'tbeusedwithoutalightsource,anInternetconnectionoraphotodetector.解析：D[细节理解题。根据第二段中的“Itrequiresalightsource，suchasastandardLEDbulb，anInternetco

nnectionandaphotodetector.”可知，D项所述内容正确。故选D。]3．Thispassagemaybe________.A．apieceofnewsB．asciencefictionC．afashionmagazineD．aproductbroch

ure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。(2

018·安徽合肥第二次质量检测)Everybodyknowstheimportanceofdrinkingenoughwater.Asweallknow，drinkingwaterbenefitsyourskin，m

usclesandorgans.__1__Themajorreasonforthatisrelatedtohumanbiologicalneeds.Whenyou'reababy，you're75percentwater.Then，astheyears

gethigher，yougetdrier.__2__Ithelpsyouloseweight,accordingtoastudyfromtheUniversityofBirmingham.Theresearchersfoundthatdrinking500mlofwaterthirtym

inutesbeforeamealhelpedparticipantslose10morepoundsthanthosewhodidnot.__3__Allparticipantswereadvisedtoimpro

vetheirdietandphysicalactivitylevels.84overweightadultswereinvolved.Amongthem41weretoldto“preload”withwater，while43weretoldtoc

ontroltheirwaterintakebeforeeating.After12weeks，theparticipantsinstructedto“preload”withwaterlost2.87poundsmorethan

thoseinthecontrolgrouponaverage.Inaddition,theparticipantspreloadingwithwaterbeforeeachoftheirthreemainmealseverydaylost9.48pounds

overthe12weeks.__4__Dr.HelenParretti,alecturerattheUniversityofBirmingham，hadthistosayofthestudy:__5__Justdrinking500mlofwater,thr

eetimesaday,beforeyourmainmealsmayhelpreduceyourweight...andthiscouldbeaneasywayforweightloss.Furthermore,

itcanbesignificantforanindividualtoloseextraweight,makingapotentialcontributiontopublichealth.A．Anotherreasontodrinkwaterisrighthere.B．Thestudyb

eganwithaweightmanagementconsultation.C．Thebeautyofthesefindingsisthatlosingweightissimple.D．Butnoteveryonecangetaccesstotapwaterinsome

areas.E．Italsohelpspreventcertaindiseasesandimproveyourmood.F．Incontrast,thosepreloadingonceadayornever,lostjust1.76pounds.G．Sokidsshoulddrink

morewaterinsteadofcoketokeephealthy.[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02516345)(2018·银川检测)FromMondaytoFriday,mostpeoplearebusyworkin

gorstudying,butintheeveningsandonweekendstheyarefreetorelaxandenjoy1.________(they).SomewatchTV2._______

_gotothecinema.Otherstakepartinsports.Therearemanydifferentways3.________(spend)theirsparetime.Almosteveryonehassomekindofhobbies.Itmaybeany

thingfromcollectingstampsto4.________(make)modelairplanes.Somehobbiesareexpensive,5.________othersdon

'tcostanythingatall.Some6.________(collect)areworthalotofmoney.Othersarevaluableonlytotheowners.Iknow7.________manwhohasacoincollectionwor

th$250.Hewasveryhappyabouthispurchaseand8.________(think)thepricewasreasonable.Ontheotherhand,myyoungestbrothercollectsmatchboxes.Hehas

almost600ofthembutIdoubtiftheyareworthanymoney.However，tomybrothertheyare9.________(extreme)valuable.Not

hingmakeshim10.________(happy)thantofindanewmatchboxforhiscollection.Thisiswhatahobbymeans,Iguess.Itissomethingweliketodoinourspar

etimesimplyforfun.Thevalueindollarsisnotimportant.Wedoitforthepleasureitgives.答案：1.themselves2.or3.tospend4.making5．but/while6.collec

tions7.a8.thought9．extremely10.happier