切尔西vs沃特福德历史交锋记录: 沃特福德vs南安普顿

PBS高端訪談:西雅圖的新海堤讓魚類生活更輕松

時間:2017-08-16 02:09來源:互聯網 提供網友:mapleleaf   字體: [ ]
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沃特福德vs南安普顿 www.siuceg.com.cn    And now to our NewsHour Shares. Seawalls help to protect developed shorelines, but they can also destroy crucial habitat.

  One project in Washington state aims to fix that. Ken1 Christensen of KCTS' EarthFix explains.
  The Seattle waterfront is changing right beneath your feet.
  When you walk along Seattle's sidewalk, you will be walking on glass panels.
  But look deeper, and you will see that the changes aren't for tourists. They're for natives.
  Their function is to provide light to help thousands and thousands of little baby salmon2.
  It's one feature of Seattle's new seawall, a $400 million infrastructure3 project that's doubling as a really big science experiment, the biggest of Jeff Cordell's career.
  Nothing has ever been tried on this scale. You're walking on foot after foot after foot of new habitat.
  Cordell wants to see if coastal4 cities can better coexist with fish.
  For 80 years, Seattle's seawall was like most, a flat, concrete slab5 that held back the sea, but destroyed shallow water habitat that many species thrive on.
  Every spring, young salmon would migrate from Seattle's Duwamish River to the ocean, and they're hard-wired to stay close to shore, which means they run right into this.
  In the inky darkness under the pier6, life can get confusing for a fish.
  There's a good example of a shadow line from a pier. And they don't want to cross the shadow line, so they just mill about here.
  The new seawall is supposed to make life easier, not only by providing a naturally lit corridor for fish to pass through on their way to the ocean,
  but also by featuring overhangs and rocky surfaces along the way for fish food to grow on.
  Look at the brown scum here. We love to see that, because that's where the little crustaceans7 grow that the juvenile8 salmon feed on. You can't count out brown scum.
  Most seawalls are still get built like Seattle's was back in the 1930s. And construction is expected to increase.
  There's going to be much more need for coastal infrastructure and a lot more thinking about how we can best create habitat for the organisms that we're removing it from.
  Once the seawall is complete, Cordell plans to begin a decade-long monitoring project to figure out if it does what it's supposed to.
  Even that brown stuff needs a good amount of sunlight to grow.
  If the experiment succeeds, the Seattle waterfront's biggest change could be the change it inspires in seawalls around the world.
  For the PBS NewsHour, I'm Ken Christensen in Seattle, Washington. undefined

點擊收聽單詞發音收聽單詞發音  

1 ken k3WxV     
n.視野,知識領域
參考例句:
  • Such things are beyond my ken.我可不懂這些事。
  • Abstract words are beyond the ken of children.抽象的言辭超出小孩所理解的范圍.
2 salmon pClzB     
n.鮭,大馬哈魚,橙紅色的
參考例句:
  • We saw a salmon jumping in the waterfall there.我們看見一條大馬哈魚在那邊瀑布中跳躍。
  • Do you have any fresh salmon in at the moment?現在有新鮮大馬哈魚賣嗎?
3 infrastructure UbBz5     
n.下部構造,下部組織,基礎結構,基礎設施
參考例句:
  • We should step up the development of infrastructure for research.加強科學基礎設施建設。
  • We should strengthen cultural infrastructure and boost various types of popular culture.加強文化基礎設施建設,發展各類群眾文化。
4 coastal WWiyh     
adj.海岸的,沿海的,沿岸的
參考例句:
  • The ocean waves are slowly eating away the coastal rocks.大海的波浪慢慢地侵蝕著岸邊的巖石。
  • This country will fortify the coastal areas.該國將加強沿海地區的防御。
5 slab BTKz3     
n.平板,厚的切片;v.切成厚板,以平板蓋上
參考例句:
  • This heavy slab of oak now stood between the bomb and Hitler.這時笨重的橡木厚板就橫在炸彈和希特勒之間了。
  • The monument consists of two vertical pillars supporting a horizontal slab.這座紀念碑由兩根垂直的柱體構成,它們共同支撐著一塊平板。
6 pier U22zk     
n.碼頭;橋墩,橋柱;[建]窗間壁,支柱
參考例句:
  • The pier of the bridge has been so badly damaged that experts worry it is unable to bear weight.這座橋的橋樁破損厲害,專家擔心它已不能負重。
  • The ship was making towards the pier.船正駛向碼頭。
7 crustaceans 37ad1a9eb8e9867969edd084ce8032d5     
n.甲殼綱動物(如蟹、龍蝦)( crustacean的名詞復數 )
參考例句:
  • These crustaceans provide a valuable food source for some fish. 這些甲殼綱動物是某些魚類重要的食物來源。 來自《簡明英漢詞典》
  • When the tide ebbs it's a rock pool inhabited by crustaceans. 退潮時,它便成為甲殼動物居住的巖石區潮水潭。 來自辭典例句
8 juvenile OkEy2     
n.青少年,少年讀物;adj.青少年的,幼稚的
參考例句:
  • For a grown man he acted in a very juvenile manner.身為成年人,他的行為舉止顯得十分幼稚。
  • Juvenile crime is increasing at a terrifying rate.青少年犯罪正在以驚人的速度增長。
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