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Plant owners know just how difficult it can be to figure out what they need,especiallywhen leaves start browning or drying.But it turns out that plants may have been telling you allalong.A new study found that when plants are stressed,they produce specific sounds thatidentify what's wrong.hhefoaodydsom.1pwsidAphoocftqPnaarRnamypePrevious studies had shown that plants vibrate()when under stress,but for years,orchard().Surrounded by delicate white flowers,the farmers extend long sticks up知toward the atree branches.By looking at this picture,my sixtn-grade students came to termswith an astonishing fct:Wthno bees lef these farmers must pollinate()thcscientists have argued whether those vibrations become sound waves.By studying tomato andtobacco plants in a lab container inside a greenhouse,researchers at Tel Aviv UniversityConeps lie biodiverty re callegnthemselves.梁discovered that it's true一plants seream out for help through airborne ultrasonie(超声波)sounds.How do you explinomhappening lowly and invsbyBtvito understding hidde threatand photsofferInoduced hy Chreoll國"We found that plants usually let out sounds when they are under stress and that eachplant and each type of stress is associated with a specific identifiable sound."researchers said infound than hoominedith nfApprceaionforfiodhcerat.Pariepmntswhosayhesephotosshcowigheeotequenreabiodivert orle ko in themiddeor如a news release from the university."While imperceptible to the human ear,the sounds emitted(by plants can probably be heard by various animals,such as bats,mice,and inseets."becuse of it choosing todonate more money to n nromeor"Human adults can only hear frequencies up to 16 kilohertz,"researchers said,"but ultrasonicWebrproblm indaybuthoth deh the chehaWhamicrophones placed about 10 centimeters from each plant used in the study detected sounds atphotgr Then mov to the why.Why do you thnk hshappfrequencies between 20 and 250 kilohertz."Those recordings were analyzed by special AIknow theeyo ek them together.nllythehow How长algorithms that could differentiate between plants and the types of sounds they were emitting.different?How can you be a part of that shift?Donavodiswith kids abouchoThis laid a solid foundation for the research and made the new discoveries possible.ovetksbout the roeWhether yourResearchers found the more stressed plants were,the more they sereamed."Our findingswhere you live rdying rreefsround the world,tkesuggest that the world around us is full of plant sounds,and that these sounds containabout them with the young people in your life.These学information-for example about water shortage or injury,"Hadany said."All we need is theBut instead of avoiding negative emotions,you cn us themt'right tools'-such as sensors that tell growers when plants need watering."32.What does the author want the children to do in class?A.Explain the abstract concept.This could prove particularly beneficial in the agriculture industry,as researchers noted inB.Appreciate the farming photo.新their publication that"more precise irrigation can save up to 50%of the water expenditure andC.Integrate the theory with practice.increase the output."This ability could only get more important as climate change continues toD.Care about the loss of pollinators.increase the intensity and frequency of droughts and the world continues to struggle with food33.Why was the photo of a koala used in the study?A.To introduce the topic of biodiversity loss.security issues.28.What was the scientists'attitude to "plants producing sounds"before?B.To raise fund for environmental protection.C.Negative.D.Objective.C.To show the damage to the creature's habitat.知A.Debatable.B.Supportive.29.What does the underlined word"imperceptible"in Paragraph 3 probably mean?D.To get participants interested in the cute animal.34.What is Paragraph 4 mainly about?A.Beneficial.B.Undetectable.C.Adjustable.D.Unbearable.A.The effect of conversations.30.What contributes more to the new findings according to the researchers?B.The advantages of photographs.A.Untiring pursuit.B.Water shortage.C.The process of exploring problemsC.High-tech means.D.Agricultural development.D.The methods of solving problems.31.What is the best title for the text?35.What can be inferred from the last paragraph?A.Humans Are Shaking Off Food CrisisA.Photos can help broaden children's horizon.B.Plants Cry Out for Help When Under StressB.Conversation is the best solution to problemsC.Biodiversity loss is a new threat to the worldC.Al Helps Plants Adapt to Climate ChangeD.Images can lead to action on complex problemsD.New Speeies Are Growing with Little Water种州智达英语(二)·调研卷Ⅱ第5页(共10页)神州智达英语(二)·调研善目等米如圆
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