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1、 York to 1 my Life became hard when I was 14. My mother and I moved whod moved there to work when I was three years old. He had a job at a and York to 1 my Life became hard when I was 14. My mother and I moved whod moved there to work when I was three years old. He had a job at a andonlyvisitedevery

2、couple ofBefore I moved, I t he US spoke English. But honestly, I didnt stop yze when I to leave. Just like I med I could doctorora lawyer.ItIhadthe skillstolearnEnglishinae When I he US and started 8th grade at Ditmas Middle School in as speaking a (language I couldnt understand. t life subtitles,

3、like in foreign movies. School ch a serious place here. Sometimes I felt like was in a geek (呆子) class. The teachers were my moves so I couldnt evena rlassmateshead.Andtheworstthingwashavingto after almost seven months of complaining about everything, I tcomplaining didnt change things. just made my

4、 life worse. If I was going his new concrete jungle, I had to. I began to learn English by reading newsprson my own school. After about our months, I started enjoying reading the crime and stories. After six months of studying, my my improvement and moved o English class. Icould go to the store anda

5、sk for t I wanted to buy I didnt frustration. For time I felt like I was living on foreigntalk.understand() 1.A.)2.A.good-) 3.A. ) 4.A. ) 5.A.)6.A.)7.A. ) 8.A.) 9.A.)10.A. )11.A.) 12.A. )13.A. ) 14.A.) 15.A. )16.A. ) 17.A. B.B.well-B.B.B.B.B.B.B.C.C.C.D. D.highly-D. D. s D.D.D. D.D.D. D. D.D.D.D. D.

6、 D.C.C.C.C.C.C.C.C.C.C.C.C.C.C.B.B. Even B.B.B.B.B.B.() 18.A.) 19.A. ) 20.A.B.B.B.C.C.C.D. D.D. AGrasshoppersare having to change their songone of the iconic () 18.A.) 19.A. ) 20.A.B.B.B.C.C.C.D. D.D. AGrasshoppersare having to change their songone of the iconic sounds of summermake themselves heard

7、 above the noise of road traffic, ecologists have discovered. The he British Ecological Societys journal Functional Ecology, is to thuman-made noise affects natural insect populations. Animals use sound to communicate many reasons, including marking out territory, warning of predators and finding ma

8、tes, although previous research shows birds, whales and change their calls in environments, the impact of human-made noise on insects has been neglected until now. Leandcolleaguesfromthe UniversityofBielefeldinGermanycaught188grasshoppers, half from quiet locations and half from beside busy roads. T

9、he grasshoppers theirsongtoattractThe team then studied the in the two groups songs in the laboratory. encourage them to sing they ed the males to a female grasshopper, and then recorded courtship ysis of almost 1,000 recordings revealed grasshoppers living beside roadsproduceddifferentsongstothosel

10、ivinginquieterAccording to e, “Bow-winged grasshoppers t include low and frequencycomponents.We tgrasshoppersfromnoisy sincrease thevolumeof lower-frequency part of their song, partofthefrequencyspectrum頻譜akes sense since road noise can mask The teams findings are important because traffic noisecoul

11、d be upsetting the grasshoppers mating system (交配系統(tǒng)). “Increased noise levels could affect grasshopper courtship in several ways. It could prevent females from hearing male courtship songs properly, prevent females from recognizing males of their own species, or impair females ability to estimate ho

12、w attractive maleisfromhissong,”e Having thuman-madenoiseaffectsinsectcommunication,theresearcherswantto learn more about how the mechanism works, and whether the grasshoppers adapt to during their developmentas larvae(幼蟲), or whether males fromnoisy s produce songsduetogenetic.The bow-winged grassh

13、opper is a common species in Central Europe. Adults occur n July and September, preferring dry grasslands. Around 1.5 cm long, they vary in from green and brown to red and purple. The males song consists of 2 second-long tincrease litude (振幅) towards the end. The beginning of a phrase is characteriz

14、ed slower ticking t increase in speed litude, leading to a buzzing sound ofthephrase.Acourtshipsongusuallyincludes2)21.Theauthorwrotethepassage (roducehowgrasshoppersmakenoisestoattractB.raisetheawarenessofprotectingbow-wingedC. informusofarecentdiscoveryofecologicalD.warnthuman-madenoisehaschangede

15、cological()22.WhichofthefollowingcouldbethemainideaoftheBow-wingedgrasshoppersusetheirsongstoGrasshopperschangetheirsongstoadapttothenoisyGrasshopperssongsincludebothlowandhighfrequencyBow-wingedD.warnthuman-madenoisehaschangedecological()22.WhichofthefollowingcouldbethemainideaoftheBow-wingedgrassh

16、oppersusetheirsongstoGrasshopperschangetheirsongstoadapttothenoisyGrasshopperssongsincludebothlowandhighfrequencyBow-wingedgrasshoppersareacommonspeciesinCentral()23.Whatdoesthe underlinedwordhefourthparagraphC.A. B.D. ()24.WhichofthefollowingementsisTRUEaccordingtotheA. Roadnoisecancoverthelower-fr

17、equencypartoftheirB.AnimalsmakesoundsonlyfortheeoffindingC.Grasshopperlarvaelearntoadapttohuman-madeD.Bow-wingedgrasshoppersgrowBoadultsint the elderly should Our risk of cancer rises dramatically as we age. So it makes routinelyscreenedfornewtumorsordoesntWhile such vigilant (警覺的) tracking of cance

18、r is a good thing in general, researchers increasingly questioning whether all of this testing is ne percentage of people over age 65 expected to nearly doubsary for the elderly. With the y 2050, its important to weigh healthbenefitsofscreeningagainsttherisksandcostsofroutineIn many cases, screening

19、 can lead to additional biopsies and surgeries to remove cancer, which can cause side effects, while the cancers themselves may be slow-growing and may e serious health problems in patients remaining years. But the t everyone e so screen for cancer t when health care tnder50andover 74stopscreeningfo

20、r breastcancer,itcausedariotous reactiondoctors,patientsandadvocacy Its hard to uproot deeply held fs ancer screening with scientific data. there are people over age 75 who have had cancers detected by routine screening, and several extra years of life because of treatment. And clearly, people over

21、age 75 who have risk factors for cancer, such as a family history or al experience with the should continue to get screened regularly. But for the remainder, the risk of cancer, increasedof life, mustbebalancedwith other factors likeremaining lifeexpectancyA recent study t doctors start to make more

22、 objective s about who truly benefit from screeningespe swell our population.lly considering the of the t will Its not an easy calculation to make, but t make sense for the whole patient. Dr. Brawleysaid,“Manydoctorsareorderingthesetestspurely tocoverthemselves.Weneedtoabouttherationaluseofhealthcar

23、eandstoptalkingabouttherationingofhealtht means making some s with elderly patients, and going against misguidedtwhenitcomestohealthcare,moreisalways() 25.WhydomendroutinecancerscreeningforelderlyA.ItisvedtocontributetolongB. Itispartoftheir healthcare C.TheelderlyaremoresensitiveabouttheirD.Theelde

24、rlyareingreaterdangerof()26.HowdosomeresearchersnowlookatroutinecancerscreeningfortheItaddstoomuchtoB. Itispartoftheir healthcare C.TheelderlyaremoresensitiveabouttheirD.Theelderlyareingreaterdangerof()26.HowdosomeresearchersnowlookatroutinecancerscreeningfortheItaddstoomuchtotheirmedicalIthelpsincr

25、easetheirlifeC.Theyare doubtfulaboutD.Theythinkitdoesn()27.WhatistheconventionalviewaboutwomenscreeningforbreastA.ItstowomenoverC.Itisoptionalfor youngB.Itisa mustforadultD.Itdoesntapplytowomenover()28.WhydomanydoctorsprescriberoutinescreeningforTheywanttoprotectthemselvesagainstmedicalTheywanttotak

26、eadvantageofthemedicalcareTheywantdataformedicalTheywanttheirpatientstosuffer()29.WhatdoestheauthorsayisA.The more,the C.BetterneralviewabouthealthB.PreventionisD.Bettercare,longerCnDo you know how itiswhenyousee someone yawnandyou startyawningtoo?Or how hard it is to be among people laughing and no

27、t laugh yourself? Well, apparently its because we mirrorneurons神經(jīng)元inourPut simply, the existence of mirror tevery time we see someone else something, our brains e (模仿) it, whether or not we actually perform the same This explains a great deal about how we learn to , talk, walk, dance or play sports.

28、 But idea goes further: Mirror neuronsnot only appear toexplain physical actions, theyl thereisabiologicalbasisforthewayweunderstandtMirror neurons can undoubtedly be found all over our brains, but lly in the whichrelate to our ability to use languages, and to understand how eople feel. have tmirror neurons relate strongly tolanguage. Agroupofresearchers tif theygave people tolistento(forle:“The handtookholdof the ball”),themirror neurons were triggered as when the action was actually performed (in this actuallytakingholdofa Anyproblemswithmirrorneuronsmaywellresultinproblemswithbehavior.

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