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1、豆渣能变环保袋，你相信吗？自古以来，大豆就是亚洲人特别喜欢的食物。它们一直被用来制成豆腐、豆浆、酱油、腐乳等食品，但现在，受欢迎的大豆也变成了塑料包装的替代品。阅读短文并回答问题AsabasicfoodintheAsiandiet,soybeans（大豆）havebeenusedtomaketofuandsoymilkforhundredsofyears.Butnow,theyarealsobeingturnedintoanalternativetoplasticwrap.WilliamChen,aprofessoroffoodscien
2、ceandtechnologyatSingapore’sNanyangTechnologicalUniversity,inventedtheenvironment-friendlyfoodwrap.It’smadeofcellulose（纤维素）,aformoffiber,obtainedfromthewastegeneratedbysoybeanproductproducers.Thebeansarepressedtosqueezeoutjuicethat’susedtomaketofuandsoymilk.Andwhat’slefti
3、susuallythrownaway,butChentakesthewasteandputsitthroughafermentation（发酵）process,duringwhichcelluloseisproduced.Cellulose-basedplasticwrapshavebeenonthemarketforafewyears,butChensaysthatmostaremadefromwoodorcorn,grownforthatpurpose.Bycontrast,hiswrapismadefromawasteproduct
4、,whichdoesn’tcompetewithothercropsforlandandismoresustainable.Chen’stechnologycouldhelptosolvetwoproblemsatonce:cuttingplasticproductionandreducingtheamountoffoodwaste.“InSingapore,theamountoffoodwastegeneratedeveryyearcouldfillup15,000Olympic-sizedswimmingpools.”Chensays
5、.F&N,asoy-baseddrinksproducer,haspartneredwithChen’slabandprovidesthewasteproduct,straightfromthefactory.Thecompanyisconductingastudytoassesswhetherthefoodwrapcouldcompetecommerciallywithconventionalproducts.“Thesoy-basedwrapcostsalmostnothingtomakeinthelab,”Chensays,“bec
6、ausetherawmaterialsarefree.Commercialproductionwouldinvolveadditionalexpenses,suchasstorageandqualitycontrol,howeverwehavenotcalculatedthosecostsyet.”Chenhopesneighboringsoy-lovingcountrieswillbeinspiredbySingaporetoadopthisinnovation.“Mydreamisthatourtechnology,whichisch
7、eapandsimple,willcutplasticandfoodwasteandcreateacleanerenvironment,”Chensaid.1.Whatisthesecondparagraphmainlyabout?A.TheintroductiontoWilliamChen.B.Theprocessofproducingsoymilk.C.Thewaytomakesoy-basedwrap.D.Thebenefitofeatingsoyproducts.2.What’sthebiggestdifferenceofChen
8、’swrapfromothercellulose-basedplasticwraps?A.Itsaveslandforindustry.B.Itismoreeasilybrokendown.C
