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阅读理解
TOKYOJAPAN-Whatdoyoudowhenyouseeacockroach(蜂螂)?Doyouhititwithanewspaper?Doyousteponit?
WhenresearchersatTokyoUniversityseeacockroachtheytaketheremotecontrolandmakethecockroachturnaroundrunleftorrightorgoforward.Thesescientistsarechangingthecockroachesintorobots.Eachcockroachhasaverysmallpackthathasinitamicroprocessor(微处理器).Thenresearcherscansendsignalsfromtheremotecontroltothepack.Thesignalscontrolthemovementsofthecockroaches.
Whydoesanyonewanttocontrolacockroach?“Insectscandomanythingsthatpeoplecan't”saysIsaoShimoyamaheadofrobotresearchatTokyoUniversity.Inafewyearshesaystheserobotinsectswillcarryverysmallcameras.Theywillbeabletomovethroughearthquakerubble(瓦砾)tolookforpeopleormoveunderdoorstofindinformationaboutsomeone.
ThismayseemstrangebuttheJapanesegovernmentthinkstheresearchisveryimportant.Thegovernmentisgivingthescientists$5millionforthisresearch.
Firsttheresearchersbreed(培育)hundredsofcockroaches.TheyuseonlytheAmericancockroachbecauseitisbiggerandstrongerthanothercockroaches.Thentheychoosethebestcockroachesandremovetheirwingsandantennae(触须).Theyputsmallpackswheretheantennaewere.Thepacksweighaboutthreegramsorabouttwotimestheweightofthecockroachesthemselves.“Cockroachesareverystrong”saysRalphHolzerwhoisaresearcheratTokyoUniversity.“Theycanlift20timestheirownweight.”
Witharemotecontrolthescientistssendsignalstothepacks.Whenacockroachgetsthesignalitmoves.Theproblemisthatthecockroachesdon'alwaysmoveintherightdirection.
A.
theywantcockroachestodothingspeoplecan'inthefuture
B.
th