2019-2020年高三英语总复习第一部分回归教材Unit2Robots课时作业新人教版选修

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1、2019-2020年高三英语总复习第一部分回归教材Unit2Robots课时作业新人教版选修Ⅰ.阅读理解(xx·海南省海口市第一中学月考)Whydohumanbeingsstillrisktheirlivesundergroundanddoingoneofthedirtiestandmostdangerousjobsintheworld?Itisanincreasinglyurgentquestion,giventherecentminingaccidentsinSago,W.VaandHuntington,Utah.Asmallgroupofengineersandroboticsex

2、pertslookforwardtoadayinthenottoodistantfuturewhenrobotsandothertechnologydomostofthedangerousminingwork.Robotictechnology,inparticular,holdsmuchpromise,McAteersays,especiallywhenitestomappingminesandrescuingtrappedminers—thespecialoperationsoftheminingindustry.Oneofthefirstminingrobotswasdevelop

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

4、sensorsthatcandetectthepresenceofdangerousgases.Incredibly，therobothasarealsenseoflogic.Ifitesacrossanobstacleitgetsmomentarilyconfused.Ithastothinkaboutwhattodoandwheretogonext.Sometimesitthrows_a_fitjustlikearealperson.Thegreatestproblem,though,iscost.Themoneyoftheearliestresearchprojectwasprov

5、idedbythegovernment,butthatmoneyhaddriedup,andit'snotclearwherefuturemoneywillefrom.Partlyforthatreason,andpartlybecauseofadvancesinsafety,miningisnotnearlyasdangerousasitwasinthepast.Since1990,fatalities(致命性)havedeclinedby67%andinjuriesby51%,accordingtotheNationalMiningAssociation.Someexpertspre

6、dictthatrobotsinmineswillservemuchofthesamefunctionthattheydointheautomotiveindustry.Therobotsdothemostboringanddangerousjobs，butwon'tgetridoftheneedforhumanworkers.1．ThelatestrobotismoreadvancedthanGroundhog,mainlybecause________.A．itcanmapabandonedminesB．ithasarealsenseoflogicC．itcanseeinthedar

7、ktunnelsD．it'ssmallerthanGroundhog2．Theunderlinedphrase“throwsafit”inparagraph4probablymeans“________”．A．getssickB．getsangryC．beeshungryD．beescheerful3．Wecaninferfromthelastparagraphthat________.A．theminerobotswillhave