日批在线视频_内射毛片内射国产夫妻_亚洲三级小视频_在线观看亚洲大片短视频_女性向h片资源在线观看_亚洲最大网

English 中文網 漫畫網 愛新聞iNews 翻譯論壇
中國網站品牌欄目(頻道)
當前位置: Language Tips> Audio & Video> 新聞播報> Special Speed News VOA慢速

Study warns of dangers to world's mangrove forests

[ 2010-04-20 11:28]     字號 [] [] []  
免費訂閱30天China Daily雙語新聞手機報:移動用戶編輯短信CD至106580009009

去聽寫專區一展身手

英語學習論壇的“聽力練習區”正式與大家見面啦。歡迎大家來這里練習聽力,交流經驗,共同進步。

本練習區的音頻文件選自英語點津的“聽中國日報”、“VOA常速”、“流行金曲”及“名人演講”等欄目,題材豐富,難度各異,適合不同階段的英語學習者。

英語點津會定期發布音頻材料,大家可以在跟帖中貼出自己聽寫出的音頻文字稿。每個音頻材料的標準文字稿會在帖子發布兩天后公布。

進入該文章的聽寫練習頁面

This is the VOA Special English Agriculture Report.

Mangroves are unusual looking trees. They have roots that stand in saltwater and look like cables or ropes laid one on top of another. Mangroves are not just pretty -- they help the environment. But now the first worldwide study warns that one in six of the many different kinds of mangroves could disappear.

As a result of the study, 11 species of mangrove have been placed on the Red List of Threatened Species. The list is kept by the International Union for Conservation of Nature.

The study appeared in the Public Library of Science journal PLoS ONE. Lead author Beth Polidoro works for the Global Marine Species Assessment Unit, based at Old Dominion University in Richmond, Virginia.

The researchers looked at 70 species of mangrove. They found that all mangrove forests on coastlines are under threat from development, logging or other dangers. But the areas in worst danger are on the Atlantic and Pacific coasts of Central America.

The study says mangrove trees provide more than one and a half billion dollars worth of services to ecological systems worldwide. For example, areas with mangrove forests were not damaged as badly by the Indian Ocean tsunami in 2004.

Mangrove forests protect land against erosion from wind, water and storms. They capture and store carbon dioxide, so experts say they can help fight climate change. And they serve as nurseries for shrimp and other saltwater organisms.

Beth Polidoro says about 80 percent of the mangrove area in India and Southeast Asia has disappeared within the past 60 years. Indonesia is said to have lost almost half its mangroves forests within the past 30 years.

Burma, also known as Myanmar, has lost many valuable mangrove trees in recent years. In some areas there, monkeys play in the tops of mangroves 30 meters tall and dolphins swim in the waters of mangrove forests.

One of the rarest species of mangrove tree grows in just a few places in East Asia and India. There are estimates that only about 250 mature trees of that species remain. Beth Polidoro says they may disappear within the next ten years unless action is taken to protect them.

She says the good news in the study is that some species of mangrove can be reforested relatively easily. But others are much more difficult to restart.

And that's the VOA Special English Agriculture Report, written by Jerilyn Watson and available online at voaspecialenglish.com. I'm Jim Teder.

(來源:VOA 編輯:陳丹妮)

 
中國日報網英語點津版權說明:凡注明來源為“中國日報網英語點津:XXX(署名)”的原創作品,除與中國日報網簽署英語點津內容授權協議的網站外,其他任何網站或單位未經允許不得非法盜鏈、轉載和使用,違者必究。如需使用,請與010-84883631聯系;凡本網注明“來源:XXX(非英語點津)”的作品,均轉載自其它媒體,目的在于傳播更多信息,其他媒體如需轉載,請與稿件來源方聯系,如產生任何問題與本網無關;本網所發布的歌曲、電影片段,版權歸原作者所有,僅供學習與研究,如果侵權,請提供版權證明,以便盡快刪除。
 

關注和訂閱

人氣排行

翻譯服務

中國日報網翻譯工作室

我們提供:媒體、文化、財經法律等專業領域的中英互譯服務
電話:010-84883468
郵件:translate@chinadaily.com.cn
 
 
主站蜘蛛池模板: 成人欧美一区二区三区白人 | 天堂婷婷 | 日本高清免费aaaaa大片视频 | 欧美色图另类图片 | 五月天伊人网 | 午夜视频色 | 午夜黄色一级片 | 亚洲精品亚洲 | 中文精品视频 | 欧美在线一级 | 黄色h视频 | 偷拍亚洲精品 | 亚洲一区二区成人 | 亚洲影视在线 | 欧美激情黑白配 | 另类欧美亚洲 | 亚洲女人毛茸茸 | 欧美wwww| 亚洲视频在线观看一区 | 亚洲免费高清 | 成人免费视频播放 | 国产精品久久久久久久久久久久久久 | 色姑娘综合网 | 亚洲专区第一页 | 色噜噜日韩精品欧美一区二区 | 1级黄色大片儿 | 成人欧美在线观看 | 毛片基地视频 | 久久国产免费观看 | 免费黄色在线网址 | 伊人爱爱网 | 91高清视频在线 | 久久国产在线视频 | 亚洲理论片 | 亚洲欧美日韩久久精品 | 秋霞影院午夜老牛影院 | 黄色肉肉视频 | 中文字幕一区二区三区视频 | 男人资源网站 | 久久久久免费 | 国产精品乱码一区二三区小蝌蚪 |