1、這本是個絕妙的傳說，但DNA測試最終結束了這個 長達兩個世紀之久的古老故事。傳說是關于一支據說是用museum collection manager Jude Ph|ilip779年在桑偉奇群島死去的英國探險家船長詹姆士庫克e的遺骨刻成的夏威夷弓箭在不久前DNA證據宣布該弓箭并非來自于庫克船dwhSrclude a feather cape presente?長的遺骨時，奧大利亞博物館收藏經理尤大書菲利普說:“澳大利亞博物館里并沒有庫克的遺骨。”但這并不能停isttDveringthe“Great South止博物館在展覽會上展出弓箭。“考古發現：澳大利亞博物館的寶藏”展覽中的確還展示了一個在

2、1778年夏威夷國王卡蘭尼歐普送給庫克的一個羽毛斗篷。庫克是英國最偉大探險家之一，他在1770年發現了 “南大陸”，也就是現在的澳大利亞。此后在桑偉奇群島 被棒擊致死。庫克弓箭傳說始于1824年，當時夏威夷國王卡莫哈 莫哈在彌留之際將弓箭賜給了庫克妻子的親戚，一名倫敦 外科醫生威廉正當斯，并告訴他弓箭是在那次致命毆打后 用庫克的遺骨做成的d在19世紀90?年代器弓箭被交給澳大理亞博物館。 個傳說直到與科學直接接觸才停止。,據菲利普說，澳大利亞和新西蘭的試驗室的DNA測試證實弓箭并非取材于庫克的遺骨，而更可能來自動物的 骨頭。但是，庫克迷們卻不肯放棄希望。他們期待庫克傳說 之一將會被證明是正確，

3、并且他人部分遺骨還會被發現。正如他們所說，有證據表明庫克的遺骨并不是在1779年全都葬身大海了。庫克船長協會的會長克利夫托馬森在一 個來自英國的聲明中說：“在這個問題上，科技取得了勝 利。我堅信某一天庫克傳說之一將會被證明是真的。”C第一篇Captain Cook Arrow LegendIt was a great lege nd while it lasted,but DNA test ing has (1) finally en ded a two-ce ntury-oldstory of the Hawaiian arrow carved from the bone of Britis

4、h explorer Captain James Cook (2) whodied in the Sandwich Islandsin 1779.“There is(3) _n Cook in the Australian Museum,庫克船長弓箭的傳說said not long ago in announcing the DNA evidenee that the aow was not made of CookS bor thatwill not stop the museum from continuing to display the arrow in its(4) exhibiti

5、on,“Uncovere：Treasures of the Australian Museum, to Cook by Hawaiia n Ki ng Kala niopuuin 1778.Cook was one of Britain s great explorers and is cred(6Land, (7) now Australia, in 1 770.He was clubbed to death in the San dwich Isla ndsnow Hawaii。The lege nd of Cooks arrow bega n in 182When Hawaiia n K

6、i ng Kamehameha on his deathbedgave the arrow to William Adams,a London surgeon and relative of Cook,sswyfeig it was madeof Cooks bone after the (atafight with islanders.In the 1890s the arrow was give n to the Australia n Museum and the lege nd continu ed0) untilit came face=to-face with scie nee.D

7、NA testi ng by laboratories in Australia and New Zeala nd revealed the arrow was not made oCooks bone but was mo(ei) likely made of animal bona said Philp.However, Cooks fai2) refuse to give up hope that one Cook lege nd will prove true and thatpart of his rema ins will still be un covered.as they s

8、ay there is evide nee not a11 of Cook (13) buriedat sea in 1 779.“On this occasi on tech no logy has worid Cliff Thorn ton presidentof the Capta in Cook Society, in a (14) statement from Britai n.“But (1am sure that one of6ed骨C第二篇Avalanche and Its SafetyAn avalanche is a sudden and rapid flow of sno

9、w, often mixed with air and water, down amountain side. Avala nches are (1) among the biggest dan gers in the mountains for both life andproperty.All avalanches are caused by an over-burden of material, typically snowpack, that is too一。massive and un stable for the slope(2) that supports it. Determ

10、ining the critical load, the amount ofover-burde n which is (3)likely to cause an avala nche(4) is a complex task involving the evaluati on of anu mber of factors.Terrain slopes flatter tha n 25 degrees or steeper tha n 60 degrees typically have a loW5)risk ofavala nche. Snow does not (6) gather sig

11、 nifica ntly on steep slopes; also, snow does not (7)flow easilyon flat slopes. Huma n-triggered avala nches have the greatest in cide nee whe n the sno ws an of rest is(8)between 35 and 45 degrees; the critical angle, the angle at which the human incidenee of avala nchesis greatest, is 38 degrees.

12、The rule of thumb is: A slope that i(9) flat eno ugh to hold snow but steep enough to ski has the pote ntial to gen erate an avala nche, regardless of the an gle. Additi on ally, avala ncherisk in creases with (10) use ; that is, the more a slope is disturbed by skiers the more likely it is that ana

13、valanche will occur.Due to the complexity of the subject, win ter travelli ng in the backco untry is n ever 100% safe.Good avala nche safety is a con ti nu ous (11) process in cludi ng route selectio n and exam in ati on ofthe snowpack, weather (12) conditions, and human factors. Several well-known

14、good habits can also(13)reduce the risk. If local authorities issue avalanche risk reports, they should be considered and allwarnings should be paid(14) attention to. Never follow in the tracks of others without your ownevaluations; snow conditions are almost certain to have changed since they were

15、made. Observe theterrain and note obvious avalanche paths where plants ar(15)missingor damaged. Avoid traveli ngbelow others who might trigger an avala nche.形，注意明顯的雪崩路徑：沒有植物或植物被毀壞的地方。不要在那些可能引發雪崩的人或事物下面行走雪崩和安全問題雪崩是雪摻雜著空氣和水沿著山體突然迅猛地滑動造 成的。雪崩是造成山區人們生命和財產安全的最大危險之所有雪崩都是由于物質的過渡負荷造成，通常是積雪 堆積過厚，很不穩固，超出了山坡面的

16、承載能力。要確定 山坡的臨界承載量，可能造成突然雪崩的負荷量是一項很復雜的任務，需要衡量多個因素。通常傾斜度小于25度，大于60度的山坡發生雪崩的g危險要小一些。積雪不會在陡峭的山坡上大量堆積，同樣 也不會在平緩的山坡上快速滑動。當雪在靜止狀態下的角 度在35_45度之間，最可能發生人為觸發的雪崩。人為引發雪崩的臨界角度是38度，是最易人為引發雪崩的角度。常規經驗是：一個平緩的足以堆積積雪，同時陡峭的適合 人們滑雪的山坡，無論角度如何，都有可能產生雪崩。此 夕卜，雪崩的危險隨著使用的增加而增加，換言之，滑雪者 活動得越頻繁，雪崩的可能性越大。由于雪崩研究的復雜性，冬天在人煙稀少的地區旅行從來不

17、是百分之百的安全。很好地躲避雪崩，保持安全是 一個連續的過程，包括選擇路線、檢查積雪、了解天氣狀 況及其他人為因素。以下幾個廣為人知的好習慣也可以降低風險：如果當地權威部門發布了雪崩警報，你應當予以 考慮，加以注意。絕不要不加審度，就立刻接受他人意見。積雪自形成的那時就幾乎注定要發生變化。認真觀察地C第四篇Animals“Sixth Sense”A tsunami was triggered by an earthquake in the Indian Ocean in December, 2004. It killedtens of thousands of people in Asia a

18、nd East Africa. Wild animals,(1)however seem to haveescaped that terrible tsun ami. This phe nomenon adds weight to no ti ons that I they possess asense ” for( 2)disasters experts said.Sri Lankan wildlife officials have said the giant waves that killed over 24,000 people along theIndian Ocean island

19、s coast cie3Dlymissedwild beasts, with no dead animals found.“No elephants are dead, not4)even dead rabbit. I think animals can (5)sensedisaster.They have a sixth sen se. They know whe n thhgs are happening.”Lankas Wildlife Departme nt, said about one month after the tsunami attack. The) waves washe

20、d floodwaters up to 2 miles inland atYala National Park in the ravaged southeast, Sri Lanka wildlife(7reserve and home to hun dreds of wild elepha nts and severalleopards.“There has been a lot of( 8)apparent evidenee aboutdogs barking or birds migrating before volcanic eruptions orearthquakes. But i

21、t has not been proven,behavior(9)specialistat Johannesburg Zoo.“There have bee n no (10)specific studies because youcansett in g2,”he told Reuters. Other authorities con curred withtji1d)assessmen t“Wildlife sem to be able to pick up certain(12)phenomenon especially birdsthe many reports of birdsdet

22、ecting impending disasters, Clive WalksHjdwho has written動物的“第六感”2004年12月由印度洋海域地震引發的海嘯造成亞洲和東非 十幾萬人死亡。但野生動物們似乎躲過了可怕的海嘯的襲擊。有專家表示，這進一步證實了動物對自然災難有“第六感”的觀點。斯里蘭卡負責野生動物的官員表示，巨浪席卷印度洋海島沿 岸，淹死了兩萬四千多人，但野生動物似乎都幸免于難，目前尚未發現一具動物的尸體。動物們的行為就會發生許多異徙，但這些現象尚未得到科學證明。” 范利羅普說。目前還沒有這方面的專門研究，因為你中進行真正的試驗。”其他專家也同H.D. Ratnayak

23、e,deputy director pf Sri斯里蘭卡野生動物部門的副部長HD，拉特納亞克在海嘯襲擊過后一個月說道：“沒有一頭大象死亡，甚至沒有一只野兔死亡。我認為動物能夠多感知災難歹。它們有第六感，它們知道災難何時發生。”海洪沖向離岸二英里遠的亞拉國家公園，這里是斯里蘭卡最大的野生動物保護區，生活著幾百頭野生大象和一些美n洲豹，海嘯引發的洪水使亞拉國家公園所在的東南部地區變,得一片狼藉。t really test讓in a lab or field“每當火山暴發或地震發生前，常，比如犬吠或鳥類遷丁南非約翰內斯堡動物園的動物行為專家馬修他對路透社記者說：r無法在實驗室或實際環境意這一看法。野

24、生動物似乎能夠感知某些特殊現象，尤其是鳥類。很多報告顯示鳥類能察覺即將來臨的災難。克萊夫沃克這樣說，他曾經 寫過數本關于非洲野生動物的書。一些動物確實是依靠嗅覺或聽覺等人類已知的官能來躲避危 險的，比如食肉動物。關于動物“第六感”（或者其他神秘力量）的說法已有很長時間， 斯里蘭卡被摧殘的海灘可能會為這一說法再添一筆證據。羅馬人把貓頭鷹視為迫近兇險的征兆，很多古代文明都將大象看做擁有特殊能力或象征的“圣獸”。several books on Africa n wildlife.Animals(13)certainly rely on the known senses such as smell

25、or hearing to avoid dange such aspredators.The no ti on of an ani mal“sixthoe njeM)” someother mythical power-is an en duri ngone3 which the evidenee on Sri Lankas ravaged coast is likely to add to.The Roma ns saw owls(15)as ome ns of impe nding disaster and many an cie nt cultures viewedelepha nts

26、as sacred an imals en dowed with special powers or attributes.C第五篇Singing Alarms Could Save the BlindIf you cannot see, you may not be able to find your way out of a burningbuilding - and that could be fatal. A company in Leeds could change all that(1)with directi on al so und alarms capable if guid

27、 ing you to the exit.Sound Alert, a company (2)run_by the University of Leeds, is installing thealarms in a residential home for(3)blind people in Sommerset and a resource centfor the blind in Cumbria.(4)The alarms produce a wide range of frequencies thatenable the brain to determine where the(5)sou

28、ndis coming from.Deborah Withington of Sound Alert says that the alarms use most of thefrequencies that can be(6)heard by humans.“Its a burst of white(Qisethatpeople say sounds like static on the radio,”sshmayote ntiafiBsgirfeat.She con ducted an experime nt in which people were filmed by thermalima

29、ging cameras trying to find their way out of a large(8)smoke-filled room. It(9)took them nearly four minutes to find the door(10)without a sound alarm, butonly 15 sec onds with one.Withington studies how the brain(11)processerounds at the university.She says that the(12)sourceof a wide band of frequ

30、encies can be pinpointed more波段窄的頻率相比，人們更容易發現波段寬的音響源。 基easily than the source of a narrow band. Alarms(13)based onthe same concepthave already bee n in stalled on emerge ncy vehicles.The alarms will also include rising or falling frequencies to indicate whether警報器救盲人如果看不見，那你可能會因找不到路而逃不出一幢失 火樓房，那將是致命

31、的。英國利茲市的一家公司發明的一 種可指方向的警報器可能會把你引向出口。聲音警報是一家由利茲大學設立的公司。該公司現在e正在為位于薩莫塞特的一家盲人收容所和位于卡姆布雷 亞的一家盲人資源中心安裝此種裝置。這種警報器發出的頻率范圍廣，使人腦可以判斷出聲音的來源。該公司的戴博拉威星頓稱此種警報器使用人類可以 聽到的大部分音頻。 她說： “它們是一種突出的頻譜連續 而均勻的”音。人們感覺它們聽上去就像是收音機發出的 靜電噪聲，其在救人方面潛力巨大。”她進行了一次試驗。她讓人們在一所充滿濃煙的大屋 子里設法找到出路，同時她用熱效應成像攝像機進行拍 攝。在沒有警報器時，這些人用了近四分鐘才找到門，而 在

32、警報器的指引下，只用了15秒。她在大學里對人腦如何處理聲音進行研究，并提出與于此理論的警報器已被應用于急救車上。這種警報器也容納了音頻的升降，以指示人們上、下 樓。這種設備是得到英國核燃料組織的大筆資助才開發成 功的。people should go up(14)or_down stairs. They were( 15)developedwith the aid of alarge grant from British Nuclear Fuels.B第六篇Car Thieves could Be Stopped RemotelySpeeding off in a stolen car, th

33、e thief thinks he has got a great catch. But he is in a nastysurprise. The car is fitted with a remote immobilizer and a radio signal from a control center milesaway will ensure that once the thief switches the engine off , he will not be able to start it again.For now, such devices2 are on ly avail

34、able for fleets of trucks and specialist vehicles used oncon struct ion sites. But remote immobilizatio n tech no logy could soon start to trickle dow n toordinary cars, an d3 should be available to ordinary cars in the UK4 jn two mon ths.The idea goes like this. A control box fitted to the carincor

35、porates 5 a miniature cellphone, amicroprocessor and memory, and a GPS satellite positioning receivers If the car is stolen, a codedcellphone signal will tell the unit to block the vehicles engine managementprestent thedengine 7 being restarted.There are even plans for immobilizers 8 that shut down

36、vehicles on the move, though thereare fears over the safety implicati ons of such a system.In the UK. an array of technical fixes is already making 9 life harder for car thieves. pattern ofvehicles crime has changed, ”says Martyn Randall of Thatcham, a security research orga ni zati onbased in Berks

37、hire that is fun ded in pari 0 by the motor in sura nee in dustry.He says it would only take him a few minu tes to 11 teach a no vice how to steal a car, using abare minimum of tools. But only if the car is more tha n 10 years old.Moder n cars are a far tougher propositi on, as their engine man agem

38、e nt computer will not 12allow them to start uni ess they receive a unique ID code beamed out by the ign iti on key. I n the UKtech no logies like this 13 have helped achieve a 31 per cent drop in vehicle-related crime since1997.But determ ined crim in als are still man agi ng to find other ways to

39、steal cars. Often by gett inghold of the owners keys in a burglary. In 2000, 12 per cent of vehicles stolen in the UK were usingthe owners keys double the previous years figure.Remote-c on trolled immobilizatio n system would 14 put a major new obstacle in the criminalway by making such thefts point

40、less. A group that includes Thatcham, the police, in sura nce companies and security tech no logy firms have developed sta ndards for a system that could goon themarket sooner tha n th$5 customerexpects.遠程制止偷車賊超速駕駛在偷來的汽車里， 偷車賊以為自己大獲全勝。 但是他 馬上就會又驚又惱。車上已經被裝了遠程制動裝置，一個幾英里 以外的控制中心發來的無線信號將確保盜賊一旦啟動引擎，他就 不能

41、再次發動汽車了。目前，這種裝置只用于卡車隊或者用于建筑工地的特殊車輛 上。但是遠程制動技術很快就會逐步應用到普通汽車上。并且應 該在兩個月之內用在英國的普通汽車上。計劃是這樣的。把一個集合有微型無繩電話，微量處理器，存儲器以及全球定位系統的衛星接收器的控制合子安裝在汽車上。 如果汽車被盜，一個被編碼的無繩電話信號就會告訴這個裝置停 止車輛引擎控制系統來阻止引擎再次被啟動。甚至還有一些人主張計劃將制動裝置裝在運行著的車輛上， 是這一來人們就會擔心這個系統的安全性。在英國，一系列的技術裝置已經讓盜車賊步履維艱了。多來自位于貝克郡的一個由汽車保險工業投資成立的名為撒策姆 的安全研究機構。他說：“車輛

42、盜竊的手法已經有所改變。”他還 聲稱只要是10年以上的汽車，他就能用幾樣的簡單的工具有幾分 鐘之內教會一個新手怎樣的偷車。現代車卻遠沒有這么簡單，因為它們的引擎管理計算機裝置 只有接收到一個獨一無二的由點火鑰匙發送過來的身份密份才可 以啟動汽車。自1997年以來，在英國，技術人員已經利用此項技 術幫助減少了31%的涉及車輛犯罪案。但是不死心的盜賊們卻還在一直想方設法偷車。例如很多時 候，他們在夜里盜走主人的汽車鑰匙進而偷車。在2000年，21%的車輛被盜案是由于主人的鑰匙被盜，這個數字比前一年增 長了1倍。瑪丁蘭英國遠程控制的制動系統給盜賊設置了一個全新的障礙。包括撒策姆,公安部門，保險公司以

43、及安全技術公司的這樣一個群體已經為體 系開發出了一個標準，將比顧客所預期的更早地被很快推廣到市 場上。B第七篇An intelligent carDriving n eeds sharp eyes, keen ears, quick brain, and coord in ati on betwee nhands and the brain. Many human drivers have all (1) these and can control afast-moving car. But how does an intelligent car control itself?There is

44、 a virtualdriver in thesmart car. Thisvirtual driver haseyes,ainlsa ndsare his eyes, traffic to the cars left arkt.rlEhere is also a highly (4) automatic drivingsystem in the car. It is the built-in computer, which is the virtual drivers“bracalculates the speedsof (5) other moving cars near it and a

45、nalyzes their positions.Basing on this information, it chooses the right (6) path for the intelligent cars, andgives (7) instructions to the“hands ” andfeets adb accord in gly .In this way, thevirtual driver con trols his car.What is the virtual driver best advantage? He reacts (8) quickly. Themini-

46、cameras are (9) sending images continuously to the“brOlO) conttpletesthe process ing of the images within 100 millisec on ds. However, the world(11) at least n eeds one sec ond to react(12) Besides whe n he takes acti on, he n eedsone more sec ond.The virtual driver is really wonderful. He can reduc

47、e the accident (13) rateconsiderably on expressway. In this case. Can we let him have the wheel at any time andin any place? Experts (14) warn that we cannot do that just yet. His ability to recognizethings is still (15) limited. He can now only drive an intelligent car on expressways.智能汽車開車需要目光銳利，耳

48、朵靈敏，反應敏捷和手腦間的協作。 許多人類司機這些條件都具備，并可控制一輛急速行駛的 汽車。但一輛智能車如何進行自控？and,“cfeeThe mini-cameras(2) on each side of the car .which observe the road and con diti ons ahead of it. They w(3ch iha智能車中有一位虛擬駕駛員。這位司機同樣有“眼”有“腦” 有“手”有“腳”。車兩側的微型攝像頭就是他的眼，負.責觀察車前方的“況。.他們注意著車兩側的交通情況。車中也有高度1自動化的駕駛系統。這就是內置的電腦，也就 是虛擬司機的大腦。這個大腦

49、計算出車近旁正在運動車輛 的速度，并分析它們的位置。基于這些信息，它為智能車 選擇最佳路徑，并給出指示以讓手腳做出相應運動。 通過 這樣的方式，虛擬司機就對車輛實行了控制。虛擬司機的最大優點是什么？他的反應速度很快。微型攝 像頭不斷向大腦發es圖像數據。他完成圖像處理的時間為100毫秒。然而，世界上最優秀的人類司機也至少需要 秒鐘的反應時間。當他作出行動時，又多需一秒。虛擬司機的確很棒。在高速公路上，他可大大減少事故發 生率。鑒于此，我們是否可以讓他在任何時間任何地點都 駕駛汽車呢？專家們警告說我們現在還不能這樣做。智能 車辨別事物的能力還很有限。目前，這種車只能在高速公 路上行駛。B第九篇W

50、onder WebsSpider webs are more than homes, and they are ingenious traps. And the worldbest webspinner may be the Golde n Orb Weaver spider. The female Orb Weaver spins a web of fibers thineno ugh to be inv isible to in sect prey, ye(1)tough e no ugh to snare a flying bird without break ing.The secre

51、t of the webs strength? A type ofrsupernt (2)silk called dragline. When the奇妙的網蜘蛛網對蜘蛛來說不僅僅是家，它們還是奇妙的引蟲入網的陷阱。世界最棒的織網者可能是Goldern Orb Weaver的蜘蛛。雌性的Orb Weaver可以織出很細的絲，連被捕的昆蟲都看不見。但卻female spider is ready to (3)weave the webs spokes and frame, she uses her legs to draw the air是堅韌得可以將一只飛入網中的鳥纏住而不弄斷。thread

52、out through a hollow no zzle in her belly. Dragli ne is not sticky, so the spider can race backand forth along (4)it_to spin the webs trademark恒星英語論壇Un like some spiders that weave a new web every day, a Golde n Orb Weaver (5)reusesherhan diwork un til it falls apart, sometimes not for two years. Th

53、e silky thread is five times stro ngerthan steel by weight and absorbs the force of an impact three times better than Kevlar, ahigh-strength human-made (6)material_ used in bullet-proof vests. And thanks to its high tensilestre ngth, or the ability to resist break ing un der the pulli ng force calle

54、d tension, a sin gle stra nd canstretch up to 40 perce nt Ion ger tha n its orig inal (7)length a nd snap back as well as n ew. No human-made fiber eve n comes(8)close .It is no (9)wonder manufacturers are clamoring for spider silk. In the consumer pipeline:High-performanee fabrics for athletes and

55、stockings that never run. Think parachute cords andsuspension bridge cables. A steady10)supply of spider silk would be worth billions of dollars -buthow to produce it? Harvesting silk on spider farms does not (11)work because the territorialarthropods have a tendency to devour their n eighbors.Now,

56、scie ntists at the biotech no logy compa ny Nexia are spinning artificial silk modeledafter Golde n Orb dragli ne. The (12)first step: extract silk-mak ing genes from the spiders. Next,impla ntthe genes into goat egg cells. The nanny goats that grow from the eggs secrete dragline silk protein inthei

57、r (13) milk .“The young goats pass on the sHkak ing gene without (14)any help from us,says Nexia preside nt Jeffrey Turner. Nexia is still perfect ing the spinning process, but they hopeartificial spider silk will soon be sn agg ing customers (15)as fast asthe real thi ng sn ags bugs.那么蜘蛛網為何有如此強的力度呢

58、？有一種網絲有超強的彈 力，叫做蜘蛛的避敵絲。當雌性的蜘蛛準備編織蛛網的幅條和框 架時，它就用腿從一個空的噴嘴里勾出輕飄飄的絲線，放到肚子 里面。避敵絲不粘，因此蜘蛛可以沿著它來回活動編織，從而來 編織網的標志性螺旋。與某些種類的蜘蛛不同， 它不用每天織新網， 只要網不破，就能一直用下去，有時一用就兩年。柔軟如絲的蛛絲的強度比相同 重量的鋼絲大五倍。同時可以承受的力度比一種高強度的防彈衣 的人工材料大三倍多。同時由于它有很強的張力，或者說一種能 夠抵住被弄斷的往下的拉力。一根單線可以伸長至比原始長度長40%以上，然后重新彈回至原來的長度，還像新的一樣。沒有一 種人造纖維可以與它相媲美。因此，生

59、產者們強烈要求蛛絲也就不足為奇了。在消費這一 方面，人們強烈要求的是高質量的運動服和永不脫絲的長襪。試s想一下另外如降落傘繩索和吊橋上的繩索。如果有穩定的蛛絲的 供應，它將是一個價值上億的產業，但問題是怎么樣才能生產出 穩定的蛛絲呢？試圖以養蛛場收獲蛛絲是行不通的，因為生長在 那塊地方的節肢動物有可能會吞掉它們的這些“鄰居” 。現在，生物工藝公司Nexifa”的科學家們正在研制一種仿制Goldorn Orb避敵絲的人工絲。第一步驟：從蜘蛛身上抽取制絲的 基因，然后，將這些基因植入山羊的卵細胞中。由這些卵細胞發 育生的雌山羊會在羊奶中分泌一種帶絲的蛋白質。“Nexia”公司總裁吉弗利特納說：“這

60、些幼山羊不須任何我們的幫助就可以將 制絲基因遺傳過去。”“Nexia”繼續在完善它的制絲過程。但是他 們希望這種人造蜘蛛絲能盡快地吸引住顧客，就像真正的蛛絲抓 住昆蟲一樣。B第十篇Chicken Soup for the Sou：Comfort Food Fights LonelinessMashed potatoes, macar oni and cheese, may be bad for your arterjeisbutaccord ing toa study in Psychological Science, theyrgood for your heart and 2 emotio