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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．Hehasastrongobjectiontosmoking(smoke)inpublicplaces,especiallywithfemalespresent.3．Whybothergoing/to

go(go)abroadtostudy,whentherearesomanygooduniversitiesathome?4．Ourstrengthisfrommanysources,butmostofall,weoweoursuccesstothecreativityofourp

eople.5．Struck(strike)bystrongsnowstorms,theareafacedseverewaterandelectricityshortage.6．Thebestwaytoundertakebigpro

jectsistoforce(force)themintoyourschedule.7．Ihaveasweettoothandcan'tresisteating(eat)chocolateandicecre

am.8．Doyouknowanydifferences(differ)betweenBritishEnglishandAmericanEnglish?9．LivinginthecentralAustraliandeser

thasitsproblems,ofwhichobtaining(obtain)waterisnottheleast.10．Wehadourfurnituremovedtothenewhousewhenthedecoration(decorate)ofthehouseisf

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

omerulesshouldbemadetoforbidstudentsofsmoking.of→from3．Itsuddenlystrucktomethatweoughttomakeanewplan.去掉第一个to或struck→occu

rred4．Nooneknowsexacthowtheearthbeganasithappenedsolongago.exact→exactly5．Owetoalackoffunds,theprojectwillnotcontinuenextyear.Owe→Ow

ingⅢ.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'stoobig

forourroom.2．我们决不会推迟这个计划的执行。(onnocondition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：Itisreportedthatmanyworkersareonstrikeinthatcountry.4．那对孪生兄弟在性格方面互不相同。(differ)答案：Thetwi

nsdifferfromeachotherincharacter.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-fican

deliverInternetaccess100timesfasterthantraditionalWi-fi,offeringspeedsofupto1Gbps(gigabitpersecond).Itrequiresalightsource,suchasastandardLEDbulb,anI

nternetconnectionandaphotodetector.ItwastestedthisweekusingaLi-fi-enabledlightbulbtotransmitdataatthespeedof

1Gbps.Laboratorytestshaveshowntheoreticalspeedsofupto224Gpbs.Whentestedinanoffice,itallowedworkerstoaccesstheInternetandinanindustrialspac

e，whereitprovidedasmartlightingsolution.ChiefexecutiveDeepakSolankisaidthatthetechnologycouldreachconsumers“withint

hreeorfouryears”．ThetermLi-fiwasfirstcoinedbyProf.Haas,whodemonstratedthetechnologyataTedconferencei

n2011.Histalk,whichhasnowbeenwatchednearlytwomilliontimes,showedanLEDlampstreamingvideo.Prof.Haasdescribedafuturewhenb

illionsoflightbulbscouldbecomewirelesshotspots.OneofthebigadvantagesofLi-fiisthefactthat,unlikeWi-fi,itdoesnotinterferewitho

therradiosignals,socouldbeusedonaircraftandinotherplaceswhereinterferenceisanissue.However,thetechnologyalsohasitsdrawbacks－mostnotabl

ythefactthatitcannotbeusedoutdoorsindirectsunlight,becausethatwouldinterferewithitssignal.Neithercanthetechnolo

gytravelthroughwallssoinitialuseislikelytobelimitedtosomeplaces.[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．Whichofthefollowingw

illbethebesttitleofthispassage?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-ficanreachspeedsofupto1

Gbps.B．Thenewtechnologyhasbeenputintousebyconsumers.C．DeepakSolankishowedthenewtechnologyataconferencein201

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

ightsource，suchasastandardLEDbulb，anInternetconnectionandaphotodetector.”可知，D项所述内容正确。故选D。]3．Thispassagemaybe________.A．apieceofnewsB．ascienceficti

onC．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)Everybodyknowstheimportanceofdrinkingenoughwater.

Asweallknow，drinkingwaterbenefitsyourskin，musclesandorgans.__1__Themajorreasonforthatisrelatedtohumanbiologicalneeds.Whenyou'rea

baby，you're75percentwater.Then，astheyearsgethigher，yougetdrier.__2__Ithelpsyouloseweight,accordingtoastudyfromtheUniversityofBirm

ingham.Theresearchersfoundthatdrinking500mlofwaterthirtyminutesbeforeamealhelpedparticipantslose10morepoundsthanthosewhodidnot

.__3__Allparticipantswereadvisedtoimprovetheirdietandphysicalactivitylevels.84overweightadultswereinvolved.Amongthem41weretoldto

“preload”withwater，while43weretoldtocontroltheirwaterintakebeforeeating.After12weeks，theparticipantsinstructedto“preload”withwaterlost

2.87poundsmorethanthoseinthecontrolgrouponaverage.Inaddition,theparticipantspreloadingwithwaterbeforeeachoftheirthreemainmealseverydaylost9.4

8poundsoverthe12weeks.__4__Dr.HelenParretti,alecturerattheUniversityofBirmingham，hadthistosayofthestudy:__5__Justdrinking500mlofwater

,threetimesaday,beforeyourmainmealsmayhelpreduceyourweight...andthiscouldbeaneasywayforweightloss.Furthermore,itcanbesignificantforanindividualtolos

eextraweight,makingapotentialcontributiontopublichealth.A．Anotherreasontodrinkwaterisrighthere.B．Thestudybeganwithaweigh

tmanagementconsultation.C．Thebeautyofthesefindingsisthatlosingweightissimple.D．Butnoteveryonecangetaccesstotapwaterinsomeareas.E．Italsohelpspreventce

rtaindiseasesandimproveyourmood.F．Incontrast,thosepreloadingonceadayornever,lostjust1.76pounds.G．Sokidsshoulddrinkmo

rewaterinsteadofcoketokeephealthy.[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)FromMondaytoFr

iday,mostpeoplearebusyworkingorstudying,butintheeveningsandonweekendstheyarefreetorelaxandenjoy1.________(they).SomewatchTV2.________got

othecinema.Otherstakepartinsports.Therearemanydifferentways3.________(spend)theirsparetime.Almosteveryonehassomekindofhobbies.Itmaybeanythingf

romcollectingstampsto4.________(make)modelairplanes.Somehobbiesareexpensive,5.________othersdon'tcostanythingatall.Some6.

________(collect)areworthalotofmoney.Othersarevaluableonlytotheowners.Iknow7.________manwhohasacoincollectionworth$250.Hewasveryhappyabouthispurch

aseand8.________(think)thepricewasreasonable.Ontheotherhand,myyoungestbrothercollectsmatchboxes.Hehasalmost600ofthembutIdoubtiftheyareworthanymoney.H

owever，tomybrothertheyare9.________(extreme)valuable.Nothingmakeshim10.________(happy)thantofindanewmatchboxforhiscollection.Thisiswh

atahobbymeans,Iguess.Itissomethingweliketodoinoursparetimesimplyforfun.Thevalueindollarsisnotimportant.Wedoitforthepleasureitgives.答案：1.them

selves2.or3.tospend4.making5．but/while6.collections7.a8.thought9．extremely10.happier