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tracked when the whales hunted for food.Using all this information,the scientists found that whales eat about three times as much food asearlier estimates had suggested.The amount of food that whales eat and poop out is astonishing.Andit suggests that whales play a bigger role in shaping ocean ecosystems than previously thought.Whales are nutrient cyclers.If whales and krill returned to their early 1900s numbers,theproductivity of the Southern Ocean could be boosted by 11 percent,the researchers calculate.Thatincreased productivity would translate into more carbon-rich life.Together,those creatures wouldstore 215 million tons of carbon each year.The carbon stored in those creatures wouldn't be able toescape into the atmosphere and contribute to global warming.28.What is the first paragraph mainly about?A.The present situation of whale killing.B.The reason for krill numbers declining.C.The help from the modern technology.D.The relationship between food and poop.29.What does the underlined word "thrive"in paragraph I probably mean?A.Grow happily.B.Change rapidly.C.Develop well.D.Stay wealthy30.How did the new study figure out whales'diets?A.By referring to past studies.B.By tracking whales with sensorsC.By observing whales'sizes.D.By examining whales'stomachs.1.What do the sientistfndingA.Whales hurt other ocean speciesB.Whales eat as much as estimated.C.Whales slow ocean productivity.D.Whales matter more than expected.DScientists have developed a new type of smart bandage (that can signal the type ofbacterial(infection it's protecting,just like a traffic light,as well as releasing the right typeof drugs on demand.The traffic light system works just like this:Green means no bacteria or lowconcentrations of bacteria,yellow means drug-sensitive DS)bacteria responsive to standardantibiotics()and cause antibiotic release,and red means drug-resistant(DR)bacteria thatneed extra help to be wiped out.In testing the bandage on mice,the research team was able to successfully treat both DS and DRinfections using the new method.However,the common methods of sensing resistance are limited bytime,the requirement for professional personnel,and expensive instruments.Moreover,the abuse ofantibiotics causes the accelerated process of bacterial resistance.It's easy to see how a simple bandage and light could overcome some of these limitations.Treatment doesn't have to wait for a doctor to make a diagnosis,and the bandage can get the right sortof drugs applied at the earliest opportunity.What's more,the person wearing the bandage gets real-time feedback on what's happening with the infection,if there's an infection at all.The researcherssay it offers numerous benefits over existing treatments that make use of light,including photodynamictherapy or PDT.We've been seeing quite a few upgrades to the traditional bandage in recent years,thanks toadvances in science-like the nanofiber mesh that attracts bacteria and draws some of them out,speeding up the healing process.Then there's the novel bandage for treating burns,which stopsbacteria from multiplying and lowers the risk of infection.The more work that a bandage can do while it's protecting a wound,the better.Efforts to improvebandages continue and now we've got a bandage that not only releases antibiotics,but also tells thepatient exactly what's going on too.32.What is the smart bandage mainly designed to do?A.To avoid the use of antibioties.B.To clear out harmful bacteria.C.To detect bacterial infections.D.To inerease treatment options.【2022高考名校导航冲刺金卷·英语（二）第5页（共8页）】