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九年级英语周报 2023-08-30 14:26:48 113

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29.WhatbenefindoesBionicReadingbnngoPeoplewnhdyeleegA.Sclecting suitable reading contents.C.Limiting reading time.30.What cane lear about Bion Reading?A.It has not been put into use so far.B.Keeping up with reading contents.t has ready been fully devloped.D.Reducing stress from reading.C.It leaves usersa further reading and thinking.D.It helps users skip the new words in reading.31.Which is the msbe title for the tex?ws,socialA.New Pioneering Plugin Improves Online Readingthere areB.Online Reading Is Sure To Perfect People's Brainen finish-C.Spending Time On Online Reading Is Worthwhileople overD.New Pioneering Plugin Still Needs To Be ImprovedA new study discovers that sharks do sleep,and they often-sleep-with-their eyes openDer Renatohe pluginSince some sharks have to swim constantly to keep oxygen-rich water flowing over their（鱼鳃)，people have long thought that they don'1 sleepat al.eyes toding likeResearchers from Australia have now recorded a species of shark sleeping for the firsttime,finishing the long-standing debate about whether sharks sleep.Tosee ifsharks were infact asleep,the team analyzed the metabolism(新陈代i谢)and pose of seven draughtsboardnguagesharks (over 24 hours.When the sharks were resting for five minutes or longer,theirHe hasoxygen consumption dropped,which suggested the animals were sleeping,And the research-peopleers also noticed that the sharks changed their posture by lying flat and closer to the ground.neededThe sharkssmetimesslept with their eyes shut as well,though,mostly during the day.At night,they tended to keep their eyes open more often,leading researchers to suspect thatwiththe sharks'eye closure might have more to do with light than the sleep state itself."Not onlyey areare sleeping sharks less responsive to their surroundings,but they also have lower metabolicrate,"said Michael Kelly,an ecophysiologist at La Trobe University.dig-L“Sharks arean important group as they are the oldest living jawed vertebrates(颌类脊椎ge as动物)-a character they share with us,”Michael Kelly said..“Sharks have been swimming inail-the sea for over 400 million years and have evolved very little in that time.Understanding howand why these animals sleep will provide important understanding into the function of sleepand how the animal has evolved over time."The team points out that more research will be needed to see if other species sleep like thedraughtsboard sharks.Next they plan to continue to analyze the sharks'brain activity whilethey sleep,to learn more about their waking and resting states.32.What is the previous isnderstanding about sharks?A.They sleep w their eyes·23-104B,【高二英语第6页（共10页）】

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