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Erm,theylook exactly the same.They'rethe samesize and shape but they have differentstoragespace.The DVD can store a lotmore than the CD.Erm, so you would tendto use CDs for storing text and soundwhereas if you want video,which takes alot more space,you would tend to useDVD.The way that the information isstored on CDs and DVDs,written to themand read from them, is different so youneed different drives for reading andwriting to them. Both of them are opticaldevices.They use laser light. A DVD drivecan read and write to CDs but a CD drivecan't read or write to a DVD.Unit 14Unit t5- Stressin longPronunciation(2)wordsg - PredictionsListeninI=Interviewer,L=Lianne,S=StefanI This week onThe monitor,we haveLianne Bradley and Stefan Werner withprototypecomputerIus.
They're both futurologists.Theyh simulatorco-operativeadvise companies on the most lÍkelyi supercomputerdownloadfuture trends.Our topic is the future ofhrrdrerrliei telF.ommunicationstechnology.Lianne,what's your viewmicroprocessor k ultrasoundabout the way things will go?netrnleumI vihrateL On the plus side,good things will2happen in health. Computers willf,ndenviÍonmentanimatolout what's wrong with us by askingindicatoranticlockwisequestions and carrying out tests.Robots^^-^^i+.,,-{^-natiOnLdPdLrLywill operateon us with better precisionmotivateddependablethan humans. However,as always withperipheraldevelopmenttechnology,we'll find new militarysimulationenergeticuses.We'll get better at killing eachventilatedenterprisingother from a distance with unmannedenteftainmentaircraft and smart weaponsprogrammed to recognizetheir targets.In telecommunications,we'll make ourSpeaking- f ob interviewphone calls through the Internet.I=Interviewer, A=ApplicantEverybodywill be able to be a reporter.I What experiencedo youhave inthisIf you see anything important, you'll bekind of work?able to transmit it to the rest of theA I,m a skÍ]ledcarpenter and l,ve done aIn computing, the keyboard willworld.lot of work making displays forEverything will be voicedisappear.exhibitions and conferences.It'squiteIn our homes,we might alsooperated.work.tostagesimilarhave voice-operateddomesticI Doyou have anyexperienceworkingappliances.We'11tell the oven how wewith lighting or sound systems?likeour pizza and it will remember theA I was a roadie with a rock band for sixnext time we ask it to bake one.I'm notmonths.
The band didn't last very longoptimistic about the developing world.- they weren't very good - but I got a lotPoorer countries will fall further behindof experÍencewith sound systems.unless they can invest heavily inI We're looking for someone who'seducation.preparedto travel for at least fourI Mm-hm. Stefan,where doyouthinkmonths each year.Would that be athere'11be big changes?nrnhlpmfnrrrnrt)SThe greatestchanges will take place inA No,l'm single at the moment, and I likeiT.I'll name just a few.
Computers willtravelling.be faster and more powerful, andI Why do you think you're the rightbe everwvhere including in thethey'llnprcnnfnr ihc inhTwe wear. Wearable computersclothesA I've got relevant experience.I lÍkewill give us directions,act as phones,vaÍietyin my work. I,m good atand searchthe Internet for informationnrnhl pm -<nlrri- - ' ' ' _n' oo'want. They'llfind real answers,notweI Are there any questionsyou would likejust a list of web pages to try.
On theto ask us?downside,l expect digital crime willA Yes,how many technicians do youincrease.For example, stealingemploy?And, of course...someone'sidentityto get into theirinternet bank account or creatingavirus to close down a business.In1abcdef130 ListeningscriptstÍansport,I think we'll seethedevelopment of cheaper fuel cells sothat cars and motorbikes can run onhydrogen.I don't agree with Lianneabout the developing world though.Developing countries wÍll go straight tothe new technologies without workingthrough the old. We've seen this alreadywith mobile phones ÍnAfrica. Insteadof developing lots of expensive landlines first, African countrÍeshave gonestraight to mobile phones.Newtechnologieswill help to produce bettercrops and will require little expensiveenergy.I Thanks, and speaking of energy, how doyou both suppose energy requirementswill be met in the future?- LinkinginPronunciationphrasalverbs1Setit up.Cut them off.21LÍnethemup.2 Give it up.3 Work it out.4 Switch it off.5 Find it out.678910Shut it down.Startitup.Printthemout.Plug it in.Turn it on.Clossaryl3lGlossaryVowelsfunctionalhybridaccuracycoolilodownloadchipevaluatecoilnetworkbuckleexDenencealloyconvertbearingssecurityhardwareg r in d e rbondingdelayformeroonuSConsonantspulleybarrelfuelhoppermodeltaggingvirusthrustdishleatherbondingcodesupportlaminate8npsuperviseantennarJchargedishyeasrd3joystickcorrosionwearaccelerator/ek'selarertc(r)/n the footpedalof a car that controlsthesDeedaccuracy/'lckjarosi/n precision,exactness,or correctnessadaptor/a diepta(r)/n a devicewhicha l l o w se l e c t r i c ael q u i p m e n t o b eu s e di n c o n d i t i o n os t h e r t h a nt h o s eit was designedforaerodynamic/,ecradar'niemrk/odjd e s i g n e dt o r e d u c ew i n d r e s i s t a n c eaffect /e fekt/yto influences o m e t h i n go r c a u s ea c h a n g ei nsomethingalloy l'teltl n a metalthat consistsoftwo or moredifferentmetalsmixedtogethera n i m a t o r/ ' a n r m e l t e ( rn) /a n a r t i s tw h o m a k e sd r a w i n g so r m o d e l sappearto moveas if they were aliveantenna lzen'tenaln an aerialfors e n d i n go r r e c e i v i n gsignalsarchitecture/'o:krtektJs(r)l n thes c i e n c eo f d e s i g n i n gb u i l d i n g sartificial I ,a:tr'frllladj madeas a copyo f s o m e t h i n gn a t u r a lm; an-madea s s e m b l y l i n e/ e ' s e m b l li u r n / na na r r a n g e m e notf m a c h i n e sa n dworkersto createa oroductautomatic/,o:tc'mtetrk/adj abletowork by itselfautomaticalfyI,c:Ia'ncltklil advw o r k i n gb y i t s e l fw i t h o u th u m a ninterventionb a r r e l/ ' b r r e l /n a h o l l o wu, s u a l l yc y l i n d r i cla,m a c h i n ep a r tbearings l'beartlezl n machinepartsthat aredesignedto reducefrictionbetweenmovingpartsblade /blerd/n the cuttingpart of am a c h i n eo r t o o l'vr3nlb fu r r e dv i s i o n/ , b l s : dn inabilityt o s e et h i n g sc l e a r l ybodyarmour /'o;ma(r)/n protectivecoveringb o n d i n g/ 'b o n d r l / n s t i c k i n gt h in g st o g e t h e ru s i n ga d h e s i v eb o n u s/ ' b o o n e sn/ a n a d d i t i o n a lamountof moneyaddedto wagesas a rewardbrieÍ lbril.l n instructionsandinformationgivento somebodybeforethey do a pieceof workbroadband/'bro:clbiend/n a systemt h a t a l l o w sl a r g ea m o u n t so fe l e c t r o n idc a t at o b e s e n ta t h i g hsoeedbuckle / b,rkl/yto be forcedout ofshapeby heat'vi:/CV /,si:n (curriculumv i t a e )awritten recordof your educationa ndt h e j o b s y o uh a v ed o n et h a t y o usendwhen you a re a pplyingfor a jobCADCAM /'ktedkien/n Computera i d e dd e s i g na n d C o m p u t e r - a i d e dmanufacturingcalculate /'krclkjolert/vto usen u m b e r st o f i n d o u t a t o t a ln u m b e r ,amountd, i s t a n c ee, t c .career/ko'ria(r)ln a jobor professionfor which you aretrainedc a r p e n t r y/ k o : p s n t r i / nm a k i n gt h i n g sf r o mw o o d ; t h ew o r ko f acarpenter'b'detrvlvcharge(batteries)/ tJo:d3132 Clossaryt o c a u s eb a t t e r i e tso t a k ei n a n dstoreelectricityc h i p t 1 .11; ' n, ' 'a s m a l le l e c t r o n i cc o m p o n e n ct o n t a i n i n ga ni n t e g r a t e cdi r c u i ta; m i c r o c h i p'clur'nCIM r si:ilrComouterintegratedmanufacturingc l a d d i n g k l i e r l r r ln t h e m a t e r i aul s e df o r t h e e x t e r n a l i n i n go f t h eb u i l di n gc l i p k l r p n a s h o r tp i e c eo f a l o n g e rrecordinog f s o u n do r f i l m'si:iC N C , , s i :c r rn Computern u m e r i c aI c o n t r o lcode kr,rrl n a set of programmein s t r u c t i o n sr w i r ef o r m e di n t oac o i l , ' k r r lnc o n t i n u o u s e r i e so f c i r c l e st o c a r r ya n e l e c t r i cIac ur r e n tcofou r-bfind i' k r lo b lrrrrrrli adj unableto seethe differencebetweenc e r t a i nc o l o u r s1rblradj abletocompatibfe k;rrn'piework togethert n thecompetences"knu.rl.lrt:rnsra b i l i t i e so r s k i l l sn e e d e df o r ap a r t i c u l a r t a sokr j o bcomplex r'k rrrnplck si a dj complicated;n o ts i m p l ec o m p o s i t e s ' ' k o n r l ' r o s rnt sf i' b r e ; a t e r i al s m a d er e in f o r c e dp l a s t i c smu o o f d i f f e r e nmt aterialscompresskrrn prcs yto makec o m p u t e rd a t at a k eu p a s l i t t l es p a c ea s p o s s i b l e.l nthec o m p r e s s i o nk o n r ' p r c nprocesos f f o r c i n ga s u b s t a n c ei n t ol e s ss p a c ea, n d t h e r e f o r ei n c r e a s i n gi t s i n t e r n aDl ressurer l 'n ac o m p u t e r f i l e' k o n r ' 1 - l .
i ul:i tr ocollectionof informationstoredu n d e ra D a r t i c u l anra m ei n acomoutercongestion' krn cl3cst.lnn the stateof beingtoo full oftrafficc o n s t r u c t i o n' ' k c ns t r r k . nl ' n b u i l d i n g ;t h e w o r ko f t h e b u i l d i n gi n d u s t r yc o n v e r t' k o r tr : l : t iv t o c h a n g esomething from one form or systemto anotherc o o l k L r : lv t o t r a n s f e rh e a t f r o ms o m e t hi n go f p r o d u c i n gs o l i da n d h o l l o wcorrosion k;:rr:rii3n n destructionorsectionsby forcing materiaIth roughd a m a g ec a u s e db y c h e m i c aal c t i o ni'knstrrlz/a diecostingsn a c a l c u l a t i o onf" llrr:nrobl'ffammableadj that canbet h e c o s to f d e s i g na n d m a n u f a c t u r esetonfireofa productr j t h a t c a nb e n do rf l e x i b f e/ ' l ' l c k s r b la, dcoursei lir:si n a programmeof studybebenteasilyi n a p a r t i c u l asru b j e c t'kncrlk.lcr:lif o r m e r ' .
h : r n o r(' ) n' s o m e t h i n g t h a itscrankshaftn themainprovideusedtosh a p e , t h act a n b es h a f to f a n e n g i n e , w h i c ihs d r i v e nremovedafteruseb y t h e c r a n k so r c a m r o d sa n df u e l ' l ' ! u : ln p e t r ool r o t h e rm a t e r i a ltransformsrotatingmovementintothat is usedto producepowerbyu p a n d d o w n m o v e m e n t , our p a n dburningd o w n m o v e m e nt o r o t a t i n gfuelc e l l i I ' i u :sl c l .n a b a t t e r yw h i c hmovemenTpr o d u c e es l e c t r i c i tby y c o m b i n i n gac u s t o m i z e d ' k r s t o r n l r r z rald j b u i l to rfuelwith oxygenc h a n g e da c c o r d i n tgo w h a t al e p u r p o s eo rfunctio nr ' l , u . 1 k .
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