高考英語(yǔ)時(shí)事新聞閱讀七選五三篇寄生蟲防摔機(jī)器人等

七選五閱讀下面短文，從短文后的選項(xiàng)中選出可以填入空白處的最佳選項(xiàng)。選項(xiàng)中有兩項(xiàng)為多余選項(xiàng)。一Parasites(寄生蟲)usuallyhaveabadreputation.That'sunderstandable.1.________Virusesareparasitesthatspreaddiseasesandcanonlyreproducebyinvadinglivingcells.Forexample,awormcalledNaegleriafowleriisabrain-eatingparasitethatlivesinfreshwater.Itnormallyinfectspeoplethroughthenose2________Theyincludebacteria,viruses,fungi,single-celledorganismsandanimals.Mostofthemdonotharmpeopleorcauseadisease.Takealeechbite,forexample.Itdrawsbloodbutdoesn'tusuallycausefurtherproblems.Someparasitesmightevenbebeneficial.RecentstudiesbyChelseaWood,amarinebiologist,andotherscientistshaveshownthatparasitesaremorecomplexandimportantthantheymightatfirstseemtobe.ConsiderEuhaplorchiscaliforniensis.ThistinyflatworminfectsthebrainoftheCaliforiakillifish.3________Theparasiteformscysts(inthefish'sbrain.Aninfectedfishmayhostthousandsofthesecysts.Buthere'sthecatch:Theparasite'sultimatehomeisabird'sgut.Killifishoftenseemshy,hidingbeneathrocksontheseafloor.4________"Theyflashtheirshinysidesandmakeahugespectacleofthemselves,Woodsays..“Theylookridiculous.”Asaresult,birdsaremorelikelytoseethem,diveinandeatthemup.Fromthefish'spointofview,theinfectionisdangerous.ButWoodlooksatalargerpicture.Bychangingthefish'sbehavior,theparasitemakesmorefoodavailabletobirds."Itisactuallypushingbiomass(生物量)upthefoodweb,intothemouthsofbirds,"Woodsays.5________A.Manyofthemareharmfulafterall.B.Andthistypeofthingisnotunusual.C.Itisasmallspeciesthatlivesnearthecoast.D.Inotherwords,it'splayinganimportantrole.E.Parasitesmakeupfourineverytenspeciesontheplanet.F.Altogetherparasitesrepresentadiversecollectionoflivingthings.G.Butwhentheyhaveaparasiticbraininfection,theysometimesheadtothesurface.二ResearchersinSingaporehavedevelopedarobottocatchelderlypeopleastheystarttofall.Theso-calledMobileRoboticBalanceAssistant(MRBA)isalsocalled"MisterBah".It'sdescribedasawearableassistiverobot.1________AnditwasdevelopedbyresearchersattheNanyangTechnologicalUniversity,Singapore(NTUSingapore)andTanTockSengHospital.MRBAusesitsinbuiltsensorstodetectalossofbalanceandcatchestheuserwithitsattachedsafetyharness(whichiswornaroundtheuser'ships(髖）2________Itcanalsohelpuserswhohavedifficultyinwalkingandbalancingtostandupsafelyfromaseatedposition,andtositdownsafelyfromastandingposition.3________It'ssaidthatfallsaretheleadingcauseofinjury-relateddeathsintheUSforpeoplewhoareolderthan65.NTUSingaporesaysthatstatisticsfromtheWorldHealthOrganizationindicatethatfallsarethesecondleadingcauseofdeathsfromaccidentalorunintentionalinjuriesworldwide."Theclinicaltrialsinvolved29participants,includingpatientswhosufferedfromseriousdiseases,suchasstrokes,braininjuries,andspinalcordinjuries.TheresearchersfoundthatMRBAwassuccessfulinaidingthemwithsitting,standing,andwalking,aswellasassistingintaskslikefetchingwater,"NTUSingaporesays."Nofallswererecordedinthetrials,whichlastedthreedaysperparticipant."4________TheresearchersbehindMRBAhavedevelopedthreemodelsoftherobot.5________They'renowlookingfor71moreparticipantstofurtherbuildusecasesoftherobotinhomeandcommunitysettings.A.MRBAhasvariousfunctions.B.Sucharobotcanbeofgreatimportance.C.It'sveryeasyforoldpeopletogetinjured.D.Buttherobot'sfunctionisnotlimitedtothat.E.Itcandetectandpreventafallbeforeithappens.F.Andtheresearchersconcludedthattherobotwasreallyreliable.G.They'vealsofiledfourpatentsrelatedtotherobot'sprimarytechnology.三Inthepast,tomakeregularuseofrainwater,peopleusuallypositionedacontainertocollectrainwaterasitranofftherooftowardtheground.1________Andtheytrytoputtherainwatertogooduse.Whydomanypeoplecollectrainwater?Therearethreecommonreasons.Manypeoplenowadayswishtobemoreresponsiblefortheplanet'sresourcesandleadagreenerlife.Besides,nowadaysdryseasonsaremorecommonandmanyplacesquitelackwater.2________Abasicsystemtocatchtherainwaterinvolvesnothingmorethanhavingagutter(雨水槽)systemaroundtheedgesofyourroof.Therainwaterisfirstcaughtinthegutter.3________Bypositioningacontainerunderneaththeopenendofthepipe,youcancollectrainwaterwhenitrains.4________Forexample,youcanusethecollectedrainwaterinyourgardeningefforts.Rainwaterisidealforwateringpottedplantsorflowerbedsaroundtheyard.Youcanalsousethecollectedrainwatertowateryourvegetablegarden.Andrainwatercanalsobeappliedtovariouscleaningprojectsaroundthehouse.Whileyou'reusingrainwater,rememberrainwaterisnotaspureasyoumightthink.Raincanwashdifferenttypesofcontaminants染物)intothewateryoucollect.Andrainwatercancarrybacteria,viruses,etc,andithasbeenlinkedtodiseaseoutbreaks.5________Andmaintainyourrainwatersystem.Ensurethewaterqualityisappropriatefortheintendeduse.A.Therefore,itisnotallowedinallplaces.B.Lastbutnotleast,rainwaterisfreeofcharge.C.Sotestyourcollectedrainwaterregularly.D.SomeAfricancountriesespeciallylackwater.E.Thenthewaterisrouteddownwardbyapipe.F.Thereareseveralwaystomakeuseofrain-water.G.Today,manypeoplehavebroughtbackthispractice.四Everyday,we’rebombardedwithnewsandinformationfromallaroundtheworld.Buthowmuchofitcanyoureallytrust?Medialiteracyistheabilitytospotdifferenttypesofmediaandtounderstandthemessagestheyarecommunicating.1.______________.Sohowcanweimproveourmedialiteracywhenitcomestothenews?Herearesometips:?2.______________It’simportanttoknowwhoispublishingthecontentyouarereading.Acredible(可信的)ortrustworthynewsproviderwillmakesuretheirreportingisn’tbiasedandisfreeoferrors.Checkoutanewsprovider’s‘AboutUs’sectionontheirwebsitetolearnmoreabouttheirmission,valuesandapproachtoreporting.?Findnewsfromavarietyofsources3.______________.Thiswillgiveyouarangeofdifferentperspectivesonanissue.Mediasitesareoftenfundedbyadvertisers,whichmeanstheirreportingisdrivenbyclicksandgrabbingattention,whilesomeotherorganizationshaveacertainpoliticalpositions.Lookatthebigpictureofastorybyreadingmultiplesourcestojudgeforyourself.?4.______________Anewsprovidermightproducemanydifferenttypesofarticlesandsoshouldlabelthemappropriatelytomaketheirpurposecleartothereader.Whenitcomestothenews,startwithreportsthatcontainfacts,statisticsfromtrustworthysources,andquotesfromexperts.Onceyouhavethebackgrounddetailsofastory,you