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1、课时作业(三十二) [选修7 Unit2 Robots][限时：45分钟] Ⅰ.语法填空TipstoenlargeyourvocabularyFirstly,learninyourreallife.1.________youputyourheartintoit,youcanlearnnewwordseverywhere(packets,ads,movies,etc.)．Secondly,classifythewords.Itiseasierforyoutorememberandpr
2、acticethemifyouputthewords2.________groups.Thirdly,createorjustimagineapropersituation3.________(practise).Thebestwaytolearnandremembernewwordsis4.________(use)themeitherbyspeakingorbywriting.Then,learnsynonyms(同义词)andantonyms(反义词)ofnewwords.Forthewordswhichhav
3、esimilar5.________oppositemeanings,payattentiontothe6.________(different)oftheirusage.Next,learnprefixes(前缀)androots.Youhavetofindtheserulesbyremembering.Themorewordsyoulearn,the7.________(easy)itbecomes.Inaddition,haveavocabularynotebook.Whenyoulearnanewword,a
4、dd8.________toyournotebook,andmakeupasentencetohelpyouremember.Andrunoverfrequently.Finally,readmore.Readingcanhelpyouguessthemeaningsofthewordsandenlarge9.________vocabulary.Ifyouhave10.________goodhabitofreading,yourEnglishissuretogetahead.Ⅱ.阅读理解AWASHINGTON—I
5、t'sagreatachievementthatinspiresnotions(观念)ofrobotswithconsciousnessandindependentminds.Whenpeopleoranimalsgethurt,theycanusuallycompensateforminorinjuriesandkeeplimpingalong,butforrobots,evenslightdamagecanmakethemstumbleandfall.However,arecently－maderobothasd
6、emonstratedanovelability:itcanhealitsowndamage.Thenewrobot,whichlookslikeasplay－legged,four－footedstarfish,cansenseinjurytoitselfandadapt.Thatabilitysetsthenewrobotapartfromearliermachines.Becausetherobotcanrecoverfromunfamiliarplaces.“Thereisaneedforplanetaryr
7、oboticrovers(漫游者)tobeabletofixthingsontheirown，”saysJoshBongard,aprofessorintheUniversityofVermont,whoisoneofthedevice'screators.“Robotsonotherplanetsmustbeabletocontinuetheirmissionwithouthumanhelpiftheyaredamagedandcannotcommunicatetheirproblembacktoearth.”At
8、ypicalrobotfunctionsaccordingtoacomputerprogram,butthenewrobotworksdifferently.First,sensorsinitsfourlegsobservetherobot'smovementsandsignalstoitsbuilt－incomputer.Fromtheinf
