標題: VOA慢速講解附字幕:全球水產養殖蓬勃發展 [打印本頁] 作者: 蔓延 時間: 2011-2-15 22:29 標題: VOA慢速講解附字幕:全球水產養殖蓬勃發展 Fish Farms May Soon Supply More Than Half the World's Catch
This is the VOA Special English Agriculture Report.
Traditional fisheries may no longer be the world’s most important provider of fish. A new United Nations report shows that fish farming or aquaculture may soon lead fish production.
The Food and Agriculture Organization says aquaculture is growing by a rate of 6.6 percent a year.
Aquaculture now produces forty-six percent of the world’s supply of fish. Thatrepresents a forty-three percent increase from two thousand six. The report also said aquaculture earned more money in two thousand eight than traditional fisheries.
The FAO headquarters in Rome published the document, "State of the World’s Fisheries and Aquaculture."
In aquaculture, fish are raised in tanks or small bodies of water called ponds. They also are raised in cages or nets in oceans, lakes and rivers.
The report says increased aquaculture has helped people around the world eat record amounts of fish. The FAO says each person ate an average of almost seventeen kilograms of fish last year.
But the FAO says the current yearly wild-fish harvest of ninety million tons shows no improvement. Decreasing numbers of fish and stronger catch limits have reduced the possibilities for catching wild fish.
The FAO report says about thirty-two percent of world supplies are overfished,depleted or recovering. It said these supplies of fish need to be urgently rebuilt.
Some scientists have criticized aquaculture. They say the nets and cages permit fish diseases and pests to spread.
Some aquaculture critics doubt that aquaculture can keep growing at the current rate. But Wally Stevens of the trade group Global Aquaculture Alliance says the industry must continue developing to feed growing populations.
Mr. Stevens says a one hundred percent increase in fish farming over ten years is necessary to keep providing for people at the current level. He notes that aquaculture creates jobs and wealth, especially for people in coastal areas of China.
The FAO reports that China remains the world’s largest fish-producing nation. China produces more than sixty percent of the world’s farmed fish.
And that’s the VOA Special English Agriculture Report, written by Jerilyn Watson. Our programs are online with transcripts and MP3 files at voaspecialenglish.com. You can also find us on Facebook and Twitter at VOA Learning English. I’m Bob Doughty.
1.aquaculture n.水產業
2.represent v.代表, 象征, 表示
例句：The pilots respectfully represented that they were not at all tired.
飛行員鄭重表示他們一點也不累。
He represented himself to be the Son of God.
他自稱是救世主。
3.headquarter n.總部
4.raise v.撫養; 飼養
例句：The old man likes raising rabbits, chickens, dogs and horses.
這個老人喜歡養兔子、雞、狗和馬。
They raised five thousand chrysanthemums last year.
去年他們種了五千株菊花。
5.yearly adj.每年的, 一年一度的
例句：The flower show is a yearly event in our town.
我們鎮上的花展一年舉行一次。
The earth makes a yearly revolution around the sun.
地球每年繞太陽一周。
6.harvest n.收成, 收獲量
例句：There was a good harvest that year.
那一年收成好。
7.improvement n.增加或修改
例句：There is room for further improvement in English.
你的英語尚有進一步提高的余地。
改進, 改善, 改良
例句：Your work shows considerable improvement.
你的工作顯示出相當大的改進。
8.deplete vt.〈正〉使大大的減少; 使空虛
例句：Our supplies of food are rather depleted.
我們的食品供應大大地減少了。
內容解析：
1.Traditional fisheries may no longer be the world’s most important provider of fish.
no longer不再, 已不, 不復, 再也不
例句：He was long a famous musician, but he plays no longer.
他成為有名的音樂家已很久了, 但他現在不演奏了。
The city's water supply is no longer adequate for its need.
這個城市的供水已不敷需求。
2.The FAO says each person ate an average of almost seventeen kilograms of fish last year.
an average of平均有(跟數詞)
例句：An average of ten students are absent each day .
每天平均有10個學生缺課。
average用作名詞，注意以下用法：
(1) 表示“平均”、“平均數”，是可數名詞。如：
The average of 6，8 and 10 is 8. 6，8，10的平均數是8。
An average of 10 students are absent each day. 平均每天有10個學生缺席。
It’s said thatthe paper receive an average of nearly 100 articles a day. 據說這個報社平均每天要收到百來篇來稿。
(2) 表示“普通”、“標準”、“平常”等（大致相當于“一般水平”的意思)，根據情況可用作可數或不可數名詞。如：
Tom’s work atschool is above (the) average, Jim’s is below (the) averageand Jack’s is up to (the) average. 湯姆的學習成績屬于中上水平，吉姆的學習成績屬中下水平，杰克的學習成績屬中等水平。
(3) 表示“平均起來”、“在一般情況下”，可用 on average, onan (the) average。如：
On (the) average we receive ten letters eachday. 我們平均每天收到10封信。
He smokes 20 cigarettes a dayon an average. 他平均每天要抽20支煙。
3.Some aquaculture critics doubt that aquaculture can keep growing at the current rate.
keep doing的用法
含keep的常用句型
keep doing sth. 意為"繼續干某事"，表示不間斷地持續干某事，keep后不能接不定式或表示靜止狀態的v-ing形式，而必須接延續性的動詞。如：
He kept working all day, because he wanted to finish the work on time.他整天都在不停地工作，因為他想準時完成工作。
Keep passing the ball to each other, and you'll be OK.堅持互相傳球，你們就行。
keep on doing sth. 意為"持續做某事"。如：
The pupil kept on asking me the same question.這個學生不斷地問我同一個問題。
I kept on thinking about the match in the afternoon.我總是想起下午的那場比賽。
keep...from doing sth.意為"阻止/防止……做某事"。如：
The heavy snow kept us from going out.大雪使我們不能出去。
4.China produces more than sixty percent of the world’s farmed fish.
more than超過,多于
例句：It's no more than one mile to the shops.
到商業區不過一英里。
His insolence is more than I can stand.
我受不了他的無禮。作者: oscar 時間: 2011-10-20 16:30 一看到前面一大堆英文，頭都暈~
一看到前面一大堆英文，頭都暈~