2019高考英语一轮优练题unit2robots含解析新人教版选修7

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1、Unit2Robots李仕才(选修7　Unit2)【短文语法填空】根据短文内容，在空白处填入适当的内容(1个单词)或括号内单词的正确形式。Theclassicadvertisement，whichis1.likely(like)tobejustthenameofacompany，givesinformationaboutfindingcertainproducts.Thiskindofadvertisingisunlikelytobesuitablebecauseofthe2.competition(compet

2、e)inthemarketplacenow.Whatadvertisementsneedtodois3.to_attract(attract)thepublic’sattention.Someadvertisements4.are_made(make)upofpicturesorthewordsofexpertstoshowpeoplehowgoodtheproductsare,5.whileotherstrytocreateadvertisementspeoplelikelookingat.Sotheyspen

3、dmuchmoney6.applying(apply)moderntechniquestotheadvertisements.Modernadvertisementscombinethe7.highest(high)standardsofdesignwithideaslinkedtotheproducts.What’smore，theseadvertiserslook8.forotherwayssuchashumouraswellasunusualideastomakepeopleforgetthatsomeon

4、e9.is_trying(try)tosellthemsomething.Therearealsosomepublicadvertisements10.whichaimtohelpincreasepublicknowledgeandmakeoursocietyabetterplaceforeveryone.Ⅰ.阅读理解AEachyear,hikersandmountainbikersgetlostorinjuredinthewilderness.Searchandrescueeffortscaninvolve20

5、ormorepeople.Butanew“smart”drone(无人机)canfollowhikingtrails(小路)withoutapilot’sassistance.Thiscouldallowrescuerstosearchmoreefficiently.Scientistsoutfittedacraftwithasinglecamera.Asthedrone’s“eye”,thecamerapointedforwards.Buthavinganeyewasn’tenough.Thedronealso

6、neededa“brain”tounderstandwhatitwasseeing.Andthatbrainwouldhavetorecognizewhatconstitutesatrail.Cameraimages,however,canbeverydifficultforacomputertointerpret,studyleaderAlessandroGiustinotes.Soheandhisteamusedphotosofforesttrailstotraintheirdrone’sneuralnetw

7、ork(神经网络).TheyattachedthreeGoProcamerastoasingleheadband.Onecamerapointedstraightforward.Theothertwoweredirected30degreestotherightandleftofthecentre.AhikerputthepackageonandthenhitthetrailsinaforestedpartofSwitzerland.Overseveralweeks,thecamerasrecordedatota

8、lof8hoursofvideocovering7kilometresoftrails.Theresearchersthendividedthevideointoindividualstillimagestotraintheneuralnetwork.Thenetworklearnedtoidentifywhatatraillookedlike.Theteamthente