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to the fame,many scientists and poets have long assumed that fywere simply,ineseapably drawn to bright lights.But that's not exactly what's going on.a newRather than being attracted to light,researchers believe that artificial lights at night maystudy suggests.ctually conus nying inseets inbom navigational systems.caung them to futterin confusionnaviionl p Tyo edricothe Universtorodr lamps.seet lightsandherfl beacos.NCo Chapelill ho as not inoedhresearch.Theyem tonnscs t fy direetly towardioe but actually()their backs towrdlight as an indicator to know which way is up.heid Sam Fabian,merial College Londomsandofhe stuyThat would make sens if the stronges li soure was in the sky.But in the presence ofpublished Tuesday in the journal Nature Communications.数artificial lights,the result is midair confusion,not attraction.For the study,researchers attached tiny sensors to moths and dragonflies in a laboratory to杯film"oti-apture"video of fight-similar to how flmmakers attach sensors to actors to tracktheir mvement.They also used high-resolution cameras tofilm insects swirling around lights at阳a field site in Costa Rica.This allowed them to study in detail how dragonflies will circleendlessly around light sources,positioning themselves with their backs facing the beams.Theyalso documented that some insects will flip upside down-and often crash land-in thepresence of lights that shine straight upward like search lights.Insect flight was least disturbed by bright lights that shine straight downward,theresearchers found."For millions of years,insects oriented themselves by sensing that the sky isight,the ground is dark"-until people invented artificial lights,said Avalon Owens,a Harvardentomologist who was not involved in the research.8.What's the function of the first paragraph?A.To overview the whole article.B.To introduce the main topic.C.To raise a problem.D.To make a prediction9.What may be the attitude of Tyson Hedrick towards the new study?A.Interested.B.Proud.C.Doubtful.DCritical.0.What method was used to study insects'flight patterns in the research?A.Using only theoretical models to analyze.B.Observing insects only with the naked eye.C.Studying insectsmovements in complete darknessD.Attaching tiny equipment to capture their movements.
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