人教版高中英语必修五Unit3Lifeinthefuturelearningaboutlanguage(6).docx

《人教版高中英语必修五Unit3Lifeinthefuturelearningaboutlanguage(6).docx》由会员上传分享，免费在线阅读，更多相关内容在教育资源-天天文库。

1、⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯名校名推荐⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯Unit3Lifeinthefuturelearningaboutlanguage课时作业AEverybodyhatesrats.Butintheearthquakecapitalsoftheworld—Japan,LosAngeles,Turkey—ratswillsoonbeman'snewbestfriends.Whathappensafteranearthquake?Wesendinrescuedogs.Why?Becausetheycansmellpeople.Dogssavelives.

2、Theyhelprescuerstofindlivingpeople.Butdogsarebigandtheycan'tgetintosmallspaces.Sonowanewresearchprojectisusingasmalleranimaltosavelives:therat.Howdoesitwork?First,theratistrainedtosmellpeople.Whenthishappens,therat'sbraingivesasignal(信号).Thisissenttoasmallradioonitsback,andthentherescuersfollowther

3、adiosignals.Whentherat'sbrainactivityjumps,therescuersknowthatsomeoneisalive.Therathassmelledthatperson.Althoughtherearealreadyrobotswhichcandothisjob,ratsarebetter.ChristianLinsteratCornellUniversity,NewYork,says，“Robots'nosesdon'tworkwellwhenthereareothersmellsaround.Ratsaregoodatthat.Ratscan”als

4、oseeinthedark.Theyarecheaperandquickertotrainthandogs,andunlikerobots,theydon'tneedelectricity!The“ratprojectisnot”finished,butJulieRyanofInternationalRescueCorpsinScotlandsays，“Itwouldbefantastic.Aratcouldgetintospaceswecouldn'tgetto,andaratwouldgetoutifitwasn'tsafe.”Perhapsforthefirsttimeinhistor

5、y,peoplewillbehappytoseearatinabuilding(butonlyafteranearthquake,ofcourse.)1．Fromthethirdparagraphweknowtherescuerscanjudgeapersonisaliveby________.A．thenoisemadebytheratB．therat'sunusualbehaviourC．thesignalsentbytheradioontherat'sbackD．thesmellgivenoffbytheperson2．Indoingrescuejobs，________.A．rats

6、smellbetterthandogsB．dogsdon'tneedtobetrainedtosmellpeopleC．robots'senseofsmellcanbeaffectedbyothersmellsaroundD．ratscanseeinthedarkandaresmallerthanrobots3．RatshaveallthefollowingadvantagesEXCEPTthat________.A．theyaremorefantasticthanotheranimalsB．theyarelessexpensivetotrainthandogsC．theydon'tneed

7、electricityD．theyaresmallandcangetintosmallplaces1⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯名校名推荐⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯4．Afterreadingthepassageweknow________.A．atpresentratshavetakentheplaceofdogsinsearchingforpeopleB．the“ratpro