状语从句.docx

状语从句.docx

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状语从句

Unite8TheInternet

AdverbialClause状语从句

状语从句主要用来修饰主句或主句的谓语，一般可分为九大类，分别表示时间、地点、原因、目的、结果、条件、让步、比较和方式。

尽管种类较多，但由于状语从句与汉语结构和用法相似，所以理解和掌握它并不难。

学习状语从句的关键是要掌握引导不同状语从句的常用连接词和特殊的连接词。

1,时间状语从句

时间状语从句的常用引导词有：

when,as,while,assoonas,before,after,since,till,until，theminute,themoment,thesecond,everytime,theday，theinstant,immediately,directly,nosooner…than,hardly…when,scarcely…when等。

如：

Wheneveradeviceis“ontheinternet”，ithasoneoftheseaddresses.

Whenerrordidoccour,theyarefoundbysteppingthroughtheprogramoneinstructionatatime.

Assoonastheconnectionisestablished,datacaanbetransferred.

Upgradeyournetworkequipmentbeforethenetworkreachessaturaion.

Eventually,theserverwouldgiveup,usuallyaftertheapplicationitselfgaveup.

2,地点状语从句

地点状语从句的常用引导词有：

where，wherever,anywhere,everywhere等。

如：

Whereveryougo,youcanseemanypeopleuseinternet.

Addressesareusedonlywhenandwherethey’reneeded.

Matcheveryaddresswherethenetworkpotionisthesameasthenetworkpotionofanyaddressassignedtothelocalhosts.

3,原因状语从句

原因状语从句的常用引导词有：

because,since,as,for,seeingthat,nowthat,inthat,consideringthat,giventhat等。

如：

Networkprotocolsareeasytounderstandsinceweallusesomeformofprotocolsindailylife.

Becauseasingleserverisalsoasinglepointoffailure,abackupserverconceptshouldbeimplemented.

Nowthatwe’veconfiguredacoupleofchannels,wehavetotellthenameserverexactlywhattosendtothosechannels.

4,目的状语从句

目的状语从句的常用引导词有：

sothat,inorderthat，lest,incase,forfearthat，inthehopethat,forthepurposethat,totheendthat等。

如：

Weshouldencourageitsdevelopmentsothatitmayrendermoreservicetohumanbeings.

ThuswemustbeabletorespondusingthePAPprotocolincasetheremotesystemrequestauthentication.

5,结果状语从句

结果状语从句的常用引导词有：

so…that,such…that,suchthat,tothedegreethat,totheextentthat,tosuchadegreethat等。

如：

Itissothinthatasmokeparticle,dust,orhumanhaircouldcauseaheadcrash.

Thepriceissohighthatasoldbusinesscaseisrequiredasajustification.

6，条件状语从句

条件状语从句的常用引导词有：

if,unless,as/solongas,onlyif,providing/providedthat,supposethat,incasethat,onconditionthat等。

如：

Ifoneofthenodesorcablesisoffline,thenthenetworkisstillabletotransmitdata.

WhatwillhappenifSitesA,B,andCsimutaneouslysendtraffictothecentralSite?

Youdonotneedtocontactforpermissionunlessyou’rereproducingasignificantportionofthecode.

7，让步状语从句

让步状语从句的常用引导词有：

though,although,evenif,eventhough，nomatter…，inspiteofthefactthat,while,whatever,whoever,wherever,whenever,however,等。

如：

Eventhoughthisisavalidoption,itisnotaneconomicalapproach.

Althoughtheyarenotnearlyaspowerfulassupercomputers,mainframecomputersarecapableofgreatprocessingspeedsanddatastorage.

Youcanusethisshortcuteveniftheresourcerecordsareofdifferenttype.

8,比较状语从句

比较状语从句的常用引导词有：

as（同级比较）,than（不同程度的比较），themore…themore…;justas…，so…;no…morethan;等。

如：

Thetimeitspendsinsuchprocessingwouldbelongerthanweexpect.

InGigabitEthernet,thesignalinghappenstentimesfasterthanitdoesinFastEthernet.

Thisprovidesbetterelectricalcharacteristicsandasmallersizethanthealernativeconnectordoes.

9,方式状语从句

方式状语从句的常用引导词有：

as，asif，asthough,how，theway等。

如：

Ifthisisallowed,theservertreatsasymboliclinkasifitwereadocumentinthedirectory.

That’sbecausebridgesaredesignedtomakeallEthernetslinkedwithbridgesoperateasthoughtheywereonelargeEthernet.

Oncethingsareinstalled,theytendtostaythewaytheywereoriginallybuilt.

Exercise

I.Choosethebestonetocompleteeachofthefolowingsentences.

1.Theclientisthesystemthatusestheremotedirectories_____________theywerepartofitslocalfilesystem.

A.becauseB.sinceC.asifD.evenif

2._______________thisisidealfromalegalperspective,itbecomesanightmareduringasecurityattack.

A.AlthoughB.NomatterC.AsD.Aslongas

3.Itisrarelyusedtodayandshouldnotbeused_______________alegacycollectionsystemrequiresit.

A.asB.ifC.unlessD.where

4._________theLANcableistransmitting,thenthenodewillreceivethedata.

A.HowB.WhenC.AlthoghD.If

5.Theclientmustobtainacertificate_____________thenetworkcanauthenticateit

A.evenifB.nomatterC.sothatD.nowthat

6.Backupprogramsmakecopiesoffilestobeused________theoriginalsarelostordamaged.

A.incaseB.sothatC.seeingthatD.nowthat

7.Thiseasestheadministrationbutincreasesthenetwokload,______________allrecordsaretransferredfromthedevicestotheservers

A.whereB.lestC.whenD.because

8.________________yoursystemisupandrunning,useitasatooltoexpandyourinformationhorizons.

A.NowthatB.SothatC.ThewayD.Eventhough

9.________________themisfiguredlinkwillsupporttheflowofdata,itispossiblethatthisproblemmaynotbedetectedrightaway.

A.LestB.UnlessC.BecauseD.When

10._____________dataisprocessedthroughacomputer,itisusuallycalledinformation.

A.BeforeB.AfterC.ThoughD.Unless

II.Findoutalltheadverbialclausesinthefollowingparagraph.

（ThisparagraphisextractedfromTextBNetworkTopologyofUnit6）

Busnetworktopology

Inlocalareanetworkswherebustechnologyisused,eachmachineisconnectedtoasinglecable.Eachcomputerorserverisconnectedtothesinglebuscablethroughsomekindofconnector.Aterminatorisrequiredateachendofthebuscabletopreventthesignalfrombouncingbackandforthonthebuscable.AsignalfromthesourcetravelsinbothdirectionstoallmachinesconnectedonthebuscableuntilitfindstheMACaddressorIPaddressonthenetworkthatistheintendedrecipient.Ifthemachineaddressdoesnotmatchtheintendedaddressforthedata,themachineignoresthedata.Alternatively,ifthedatadoesmatchthemachineaddress,thedataisaccepted.Sincethebustopologyconsistsofonlyonewire,itisratherinexpensivetoimplementwhencomparedtoothertopologies.However,thelowcostofimplementingthetechnologyisoffsetbythehighcostofmanagingthenetwork.Additionally,sinceonlyonecableisutilized,itcanbethesinglepointoffailure.Ifthenetworkcablebreaks,theentirenetworkwillbedown,sincethereisonlyonecable.

Key:

I.CACDC;ADACB

II.

1.…untilitfindstheMACaddressorIPaddressonthenetworkthatistheintendedrecipient.（时间状语从句）

2.Ifthemachineaddressdoesnotmatchtheintendedaddressforthedata,…（条件状语从句）

3.…ifthemachineaddressdoesnotmatchtheintendedaddressforthedata,…（条件状语从句）

4.Sincethebustopologyconsistsofonlyonewire,…（原因状语从句）

5.…sinceonlyonecableisutilized,…（原因状语从句）

6.Ifthenetworkcablebreaks,…（条件状语从句）

7.…sincethereisonlyonecable.（原因状语从句）

TechnicalWriting:

Description描写

Descriptiongenerallymeansthedetaileddiscussionofthephysicalaspectsofathing.Thatmeansdiscussingthingslikecolor,shape,size,weight,height,width,thickness,texture,density,contents,materialsofconstruction,andsoon.Italsomeansdiscussinganyquantifiabledetailssuchasnumbers.

Descriptionsarecommonelementintechnicalwriting:

accidentreportsrequiringplentyofdescription;productspecificationshaveplentyofdescription;instructionstypicallyrequiredescriptionasanimportantsupplement.

ContentsandOrganizationofDescriptions

Introduction.Theintroductionoughttobeconciseandtothepoint.Itshouldindicatethespecificobjecttobedescribed--itsfunction,cause,oreffect,andgiveanoverviewofthecontentsofthedescription

Background.Ifthethingyouaredescribingisnotlikelytobefamiliartomostofyourreaders,consideraddingsomebackgroundbeforeyouractualdescription.

Discussionofthepartsorcharacteristics.Dividethethingyouaredescribingintoparts,orcharacteristics,orboth,andthendescribeeachofthem.

Discussionoftherelatedoperationorprocess.Atsomepointinadescription,oftenattheend,itisusefultosummarizetheoperationorprocessassociatedwiththeobjectyou'redescribing.

SourcesofDescription

Whenyouwriteadescription,youneedtothinkaboutthekindsofdescriptivedetailyoucanprovide.Usethefollowinglisttoplanyourdescriptionortoreviewadescriptionyouhavewritten.

colorheightwidth

shapeweightmaterials

texturewidthlocation

methodsofattachmentdepthamount

pattern,designingredientsage

subpartslengthfinish

temperaturemoisturecontentsmell

Example1Productdescription

ipodclassic

With160GB,youcancarryyourentiremedialibrarywithyoueverywhere.

Holdeverything.

iPodclassicgivesyou160GBofstoragecapacity,goodforupto40,000songs,200hoursofvideo,25,000photos,oranycombination.Andyougetupto36hoursofbatterylife,soyoucankeeponrockingforalong,longtime.1

Clicktoenjoy.

Findingexactlywhatyouwanttowatchorlistentoiseasy.UsetheClickWheeltobrowsebyalbumartwithCoverFlowornavigateyoursongsandvideosbyplaylist,artist,album,genre,andmore.Youcanalsosearchforspecifictitlesandartists.Wanttomixthingsup?

ClickShuffleSongsforadifferentexperienceeverytime.

WatchmoviesandTV shows.

Thevivid2.5-inchdisplaymakesvideocomealive.Purchaseorrentmovies,buyTVshows,anddownloadvideopodcastsfromtheiTunesStore,thensyncthemtoyouriPodclassictowatchanywhere,anytime.

PlayiPodgames.

Puthoursoffunatyourfingertips.iPodclassiccomeswiththreegames—V