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英語 高校生

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旧和-前lmppe si 証選是2 Read the text and answer the questions below. (apt wm Eve Every year hundreds of new bridges, large and small ane but around he worid. 可 inanon of NOSE Most ofthese 5 a p brdges are marle of wood, steel, concrete, or some Com! uilt uSiNIg yariouき (hree i W materials. However, in (he last few years bridges are Dein如 Iinds of plastics. reinforced1 mmm es 上 0 4 mew bridge in Kiipphausen, Germany, is made entirely 0『 glass-fiDeT like those plastic (GRP). Jr is just as strong as a concrete or steel br put un ュ = httiSR marerials、 GRP does not corrode and is not affected by fros 0F mold. Althou店 し pected to concrexe, し導SEPウデニーー more expensive than a conventional bridge of steel and money Jast machi longer and to need less maintenance, so he 【OWP will saVe Abndge im New Jersey.U.S.4 is made of anew mee plended fro or plastic used for many S ATe made of polystyTene m reCyCled mm "polyethylene and "polystyrene. Polyerhylene is a kim containers and many coffee cups plates, bowIs, and IO Neithuer of Chese raterials alone is SITOnB enough to mal em is much stronger.The neW bridge is ce will also be cheaD and ea5y is that they can be desigmed y-developed computer software can of a specific site by modifyinga ooSing frOm a range ke a bridge. but the new 14 meters long and can material made from th to maimtaim. 5 support a heavy fire rruck. This bndg Another advantage of plastic bridges more quickiy (hanm conventional bridges. Speciall pe used to desjgn a plastic bridge (hat meets the needs e way customers buy a neW car by ch srandard basic desigm mm 由 zo of opiions and specil equipment. Once the bridge's desigTl 1 completed, the plastic and built much em parts car be manufactured in a week. These Coml onents are light in weight amd easy ro handle, so a small bridge can be installed by atwo-mancrew inafew hours. Most of (he plastic bridges built so far ar rraffic. As the technology advamces and the advanmtages of e comparatively small、 buili for pedestrians or jjghf vejicle plastic bridges are recOgiZed, hOWeVer, there could be many Iarge-Scale highway and raijroad bridges made of plastic in the Tuture. ghessdiber einforced plastic グラスファイバー強化プラスチック mold かび polyethylene ポリエチレッ polystyrene ポリスチレン

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