2018届高三英语总复习第一部分回归教材unit2robots课时作业新人教版

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1、Unit2RobotsⅠ.阅读理解(2017·海南省海口市第一中学月考)Whydohumanbeingsstillrisktheirlivesundergroundanddoingoneofthedirtiestandmostdangerousjobsintheworld?Itisanincreasinglyurgentquestion,giventherecentminingaccidentsinSago,W.VaandHuntington,Utah.Asmallgroupofengineersandroboticsexpertslookforwardtoadayinthenotto

2、odistantfuturewhenrobotsandothertechnologydomostofthedangerousminingwork.Robotictechnology,inparticular,holdsmuchpromise,McAteersays,especiallywhenitcomestomappingminesandrescuingtrappedminers—thespecialoperationsoftheminingindustry.OneofthefirstminingrobotswasdevelopedfiveyearsagoatCarnegieMell

3、onUniversity'sRoboticsInstitute.ItwascalledGroundhog.Itusedlasers(激光器)to“see”indarktunnelsandmapabandonedmines—someofthemostdangerousworkinthebusiness.ThelatestdesigniscalledCaveCrawler.It'sabitsmallerthanGroundhog，andevenmoreadvanced.Itcantakephotosandvideosandhasmoresensorsthatcandetectthepres

4、enceofdangerousgases.Incredibly，therobothasarealsenseoflogic.Ifitcomesacrossanobstacleitgetsmomentarilyconfused.Ithastothinkaboutwhattodoandwheretogonext.Sometimesitthrows_a_fitjustlikearealperson.Thegreatestproblem,though,iscost.Themoneyoftheearliestresearchprojectwasprovidedbythegovernment,but

5、thatmoneyhaddriedup,andit'snotclearwherefuturemoneywillcomefrom.Partlyforthatreason,andpartlybecauseofadvancesinsafety,miningisnotnearlyasdangerousasitwasinthepast.Since1990,fatalities(致命性)havedeclinedby67%andinjuriesby51%,accordingtotheNationalMiningAssociation.Someexpertspredictthatrobotsinmin

6、eswillservemuchofthesamefunctionthattheydointheautomotiveindustry.Therobotsdothemostboringanddangerousjobs，butwon'tgetridoftheneedforhumanworkers.1．ThelatestrobotismoreadvancedthanGroundhog,mainlybecause________.A．itcanmapabandonedminesB．ithasarealsenseoflogic7C．itcanseeinthedarktunnelsD．it'ssma

7、llerthanGroundhog2．Theunderlinedphrase“throwsafit”inparagraph4probablymeans“________”．A．getssickB．getsangryC．becomeshungryD．becomescheerful3．Wecaninferfromthelastparagraphthat________.A．theminerobotswillhaveaverybrightfuture