1589801768-c7ce8b39c4374c0d66db31cbbee41ba1 (Technology 1 student's book), страница 4

Each of you has informationabout one designer.Complete the table below for yourdesignerand exchange information with your partnerby asking and answeringquestions.StudentAM y r e a d i n ga n d l i s t e n i n ga r eg o o de n o u g ht o u n d e r s t a n dm o s to f e a c ht e x ti n t h i su n i tGo to p.110.S t u d e n tA sdesignerStudentB'sdesignerNameDatesN a t i o n al i t yF a m o u fso rd e s i g inn gStudent BFerdinandPorsche(1875-1951).Austrian car designerwho contributed to the design of the first Volkswagenand the Auto Union racing cars.2 ln your pairs,find out the same information aboutthesedesignersKey wordsAdjectivesrivaIverticalNounsbriefc o s t nr 8 sfunctionman ufacturermodelmouldproductprototypesupporrVerbsevaIuateinvestigatem a s s - p r oudc esketchN o t eh e r ea n y t h i n ga b o u th o w E n g l i s hi s u s e di n t e c h n o l o g y t h aits n e w t o y o u .These sites may help you:w w w .

t i n y u rcl .o m / q a t 7 nwww.wikipedia.orgí22 Unit4Switch onLook at the picture of a mountain bike and its rider.Match the items of the rider's clothing and the bikecomponents to the materials in the table.brake cableshelmetframenmssaddleshoesoless}€{tstyresand pedalswheelbearingsRider'sclothingMaterialReasonshortsK e v l a ra n d n y l o n a e r o d y n a m i cwear-resistantrubberBikecomponents Materialsrubbergood gripbraidedsteelverystrongharda l u m i n i u ma l l o y l i g h t s, t r o n gtitaniuml i g h t e ra n dstrongerthan steel,highlycorrosionresistantnylonlight,flexiblegoodgrippolystyreneandstrong,polycarbonate lightweight250grammesReasonT e c h n o l o giyn s p o r t 2 3l n t h i su n i to k e yt e r m sf o r e n g i n e e r i n mg a t e r i a l su s e di n s p o r t se q u i p m e nat n dt h e i rp r o p e r t i e sa usedto,usedfor,madeof,madefromo s p e a k i n ga n dw r i t i n ga b o u tm a t e r i a l so h o w t o u s ec o r r e c ti n t o n a t i o nf o r o u e s t i o n sIt'smy jobI What do you think are the most important factors inchoosingmaterÍa]sfor a blke? Read abcrutPedroFernandez,a Bike Maker,and checkyouÍanSWerS.Completethe table with the advantagesanddisadvantagesof the materialsmentionedby PedroMaterialAdvantagesDisadvantagessteelPedroFernandez:Bike MakerWhen I choosea material for a bike frame, I have tothink about the properties of the material.

How elasticÍsit? If you bend or stretch it, wiII it go back to itsoriginal shape? If it does,it has high elasticity.Howstrongis it? There are two kinds of strength.The first ishow much force you need to bend it to a point where itcan'tgo back to its original shape.The second is theamount offorce you need to break it.Steelis the least expensive choice.There'sa wide rangeof standardgauge tubes available.It'sstrong and it hasgoodelasticity but it's heavy.Aluminium is lÍghtand strong but it,sflexible.Themore it bends,the quicker Ítbreaks.So aluminium bikeframesuse large diameter tubes.That limits theamount of bending.Titanium has a great strength.to.weight ratÍo.It,sgotgoodelasticity so when it bends it tends to return to itsoriginal shape.It'scorrosÍon.resistantso you don,tneed to paint it.

But it's expensive- frfteentimes the price of steel!The professÍonalsuse carbonfibre.It'svery light and it's verystrong.You can shape it any wayvou like. But carbon-fibreframes are hand-madesothey'reveryexpensive.aluminiumtitaniumc a r b o nf i b r eo Languagespotused to,usedÍor,made of, madefromStudythe ways of describinghow materialsare used:Steelis usedto make the bearÍngs.Titani'umísusedfor making theframe.Thewheelsare made of alumi.ni.umalloy.A bike is madefrom many d{ferent materÍals.We can add a reasonto explain the choiceofmaterial:Steelis used to make the bearingsbecauseit is hard.D Go to Grammar reference p.117I Correctthe errorsin these sentences.Rubberis used for make the tyres.The frame is made titanium.Kevlaris used to making the rider'sclothing.Becauselt ls very strong,braidedsteeiis used tobrakecables.5 Carbonfibre Ísused make racing bike frames.6 Steelis made iron and carbon.12342 Explain the choice of materials for each of the items inthe table ono.22.F24 Unit43 Identify the maln material in items of sportsequipment 1-10.Tick (/)the material used.More thanone answer is possible ln some cases.1 baseballbat\-nylonfibre-glassaluminiumaluminium-L-p l a s t i cl a m i n a t e s\2 football7ice skatesleathernylonpolyurethanehigh carbonsteelfibre-glasswood3 vaultingpole8 crashhelmetnyronKevlarKevlartitaniumfibre-glassplastic4skpoles\bobsleighaluminiumsteelgraphitepvccarbon-fibrealuminiumh a n gg l i d e rgraphitecompositesnylonwooda l u m i n i u ma n dpolyesterwood and nylonwood and acrylicT c c h n o l o giyn s p o r t 2 5T h a n k st o t h e l a r g em u l t i - c o m p o n e nc ot r ea n d a c o v e rmadeof a soft,thin,h igh-performance u rethane,golfersa red rivirrgover20 yardsfu rtheron average.Golf ball advertisementPronunciationVocabularyIntonationfor questionsDescribingmaterialsbegin with a questionInformationor u,h-questionsw ord who,what,where,when, how.Your rroicegoesdown on the last important word in an informationquestion.I f) t.istento the examples.(,Whereareyou front?o1 Studythe words used to describematcr"ials.Fill thegaps.Most of the words have been used ln this unit.Adjective7 elasticplasticity3 strongWhatdoyou study?Ycs/ No qucstionsex1;r:cLihc ansnrerYesor l/o fheyYour rroicegoes up ondon't contain questions."rrords.the last irnportantword inYes/ No questions.2 f ) I i s t c n t o t l r ce x a r n p l c soAreyou Ilttlk.ut?ocorrosion-resistance5 wear-resistant6 brittle7öh ar dn e s stoughflexibilityDoyou sltctk L't'tglish?3 Q L i s t r : n t o t h es h o r ti l i a k - .

' g rarned m a r k t h cintcnatioir.A \ l / h ; rrtn ' r t r ' r i ' rdl so r v c r r s cf o r s k i p o l e s TB A|irlriniun-ror caLt'oufibre,I think,What arefootballsmade of?A I ' n -rir o ts i i r c 1 si t l c a t h c r ?elasticityCheck the meaning of any utrfamÍiiarwords irsing theGlossary on p.i31.Then fili the gaps in sentences1-8with the correctr,vordfrom the table.1 Fibre-glassis used forvaulting polcs becauseit'sIight and . It bends very easily.2 You don't need to uaint titanium because it's3 Bike bearinpsare ntadt-.from stec]ber:artseÍt'sB Ycs,I'itrr-l.rtaín'Vy'hat,sttscllto make bobslcÍghs?A material which rcturns to its original shapewhenyou bend it has high --.\Arc.rkíirpitirs'A sk qttcstiotrsto check your ansrverstt.lLanguaqespot3.

Use the correctintonationRubber is very --without breaking it..You can stretch itDiamonclis an incredlbiysubstance.Aswell as jer,rrcllery,it |s sometirnes useclfor drilling.Glassis very -.lt breakseasily.8 Kevlardoesn'twear out easiiv.It's-.26 Unit4Gadget boxa battery,anda tinyAdidas1trainerscontaina microcomputer,thesurfaceyou'rerunningmotorinthesole.Thetrainersenseslt alsotakesonandadjuststheamountofsupportprovided.andtheintoaccounttheweatheltheweightoftheathlete,batterylastsfor100hours.intensityofthesportingactivity.Thethetrainers?Whatelsecouldyoudoto improveSpeakingSkateboardv snowboardWork in pairs,A and B.Eachof you has a diagramof apieceof sportsequipment.With the helpof yourpartnerwho has information aboutyour equipment,labelyour diagram,and completethe tablebelow.Givereasonsfor the choiceof materialwherepossible.StudentAGo to p.110.StudentBSkateboardThebody of a skateboardis calleda deck.Plywoodis themost commondeckmaterialusedbecauseit's light butstrong.Thefront ofthe boardis calledthe noseand thebackis calledthe tail.

Thenoseand tail aretilted up at atwenty degreeangle.Thesehelp the skateboarderperformtricks.Fixedto the deckaretwo metal alloy truckswhichconnectto the wheels.Sometruck alloys containtitanium for strength.Thetop part of the truck is calledthe baseplate.It'sscrewedto the deck.Thebottompartis calledthe hanger.It'sfixed to the wheels,which aremade of po$urethane.Thehardnessof the wheelsvaries.Very hard wheels aregoodfor performancebutnot for rough surfaces.Betweenthe baseplateand thehangerarebushingswhich providethe springmechanismfor turning the board.ListeningExchanginginformationO Listen to this extract from a conversation betweentwo students.Then change roles and repeat the activityinSpeakÍng.f) tisten again to the second part of the conversationand complete the questions.1 Isit-fibre-glass?SnowboardPartIComponent2 ReallyT Materialsused?3 OK. Is it the same 4 What's ??5 Right.Important on snow What -theedge? -made of.p-tex as well?it turns and does trÍcks?made ofOK.