高考英语一轮复习 Unit 1 Great scientists课时作业 新人教版必修5试题VIP免费

Unit1GreatscientistsⅠ.阅读理解A体裁：说明文话题：科技词数：299时间：6′Plasticisoneofthemostimportanttechnologicaldiscoveriesofthe20thcentury.However，Germanscientistsarecertainthatthismaterialmaysoonbereplaced.Thenewdevelopment—liquidwood—canreplaceplasticsinallbranchesofmodernindustries.Plasticasamaterialenjoysthebiggestdemandinthemodernworld，butitdoeshaveanumberofdisadvantages.First，plasticisnotrecyclable.Second，itcontainspoisonsthatcancausecancer.Finally，plasticismadeofoil，whichisnotendless.Theliquidwoodtechnologyisabletoreplaceplasticandprovidingmankindwithnewmaterialsformanyyearsahead.Arboformisanewmaterial，whichcanbegotfromsofttissues(组织)ofwood.Oncemixedwithseveralotheringredients(成分)，itturnsintosolidandnon－poisonousmaterial.Thewood－workingindustryseparateswoodintothreebasicthingsincludinglignin(木质素)，whichisnotusedfortheproductionofpaper.SpecialistsoftheFaunhoferInstitutemixedligninwithseveralnaturalmaterialsandthusinventedthematerialwhichcouldbemeltedandmoulded(铸造)．Whensolidarboformlookslikeplasticandpossessesthequalitiesofwood，itcanbeusedfortheproductionofanyitems.Arboformisalreadyusedfortheproductionofcarparts.However，thenewinventiondoesnotenjoyawideuseduetothehighcontentofsulphur(硫)init.Germanresearchersbelievethattheywillbeabletoreducetheamountofsulphurby90percentverysoontomakearboformusableforhomeneeds.Inaddition，liquidwoodcanberecycledrepeatedly.Theanalysisofarboformshowedthatthematerialhadallofitsqualitiesevenifitwasreprocessedtentimes.【语篇解读】尽管塑料是20世纪最重要的科技发明之一，但德国科学家确信它很快就会被一种新型原料所代替，你知道这种原料是什么吗？1．Fromthepassagewelearnthatliquidwood________．A．hasreplacedplasticB．ismadefromnaturaloilC．hasbeenwidelyusedinhouseholdD．canberecycledrepeatedly答案D[细节理解题。根据最后一段第一句liquidwoodcanberecycledrepeatedly可知D项正确。]2．ItcanbeconcludedthatGermanresearcherswillfocustheirfutureworkfirstlyonthe________．A．material'swideuseB．contentofsulphurinarboformC．productioncostofarboformD．qualitiesofliquidwood答案B[根据文章倒数第二段可知，如果用liquidwood代替塑料，科学家首先考虑的是应该如何去除liquidwood里面高含量的硫。]3．WhichofthefollowingisNOTtrue?A．Lignincontainspoisonsthatcancausecancer.B．Plasticdoesharmtooursocietyinmanyways.C．TheliquidwoodhelpstoprotectourenvironmentD．Arboformisn'tusableforhomeneedatpresent.答案A[细节理解题。文章中没有介绍木质素有致癌的毒素。]4．Thebesttitleofthepassageshouldbe________．A．PlasticHasaNumberofDisadvantagesB．ANewMaterial—PlasticC．LiquidWoodtoReplacePlasticD．HowtoProtectArboform答案C[主旨大意题。本文主要说明了一种新型材料liquidwood将会代替塑料，所以C可作文章的标题。]B体裁：记叙文话题：人物与事件词数：305时间：6′ChrisThomasusedtothinkofFacebookasjustaplatformtogetintouchwithhisfriends.Henowbelievesthesocialnetworkingservicewithsavinghislife.The28－year－oldwasdiagnosedwithmusculardystrophy(肌肉萎缩症)nineyearsagoandhasreliedonawheelchaireversince.OnJuly15，2015，Thomaswasgettingreadyforbedinhisapartment，whenashelving(架子)fellontohiswheelchairandknockedhimover，causinghimtofallandhitthebackofhishead.Afterwakingupfromafewminutesofcoma(昏迷)，herealizedhecouldn'treachthestringusedtogetthedoorkeeper'sattention.HisphonewasnearbyandhadtheFacebookapplicationconvenientlyopen，sohepostedastatusupdatethatimmediatelygothisfriendsworrie...