新概念英语第二册英音版 90－What’s for Supper

[al:新概念英语（二）]
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[ti:What's for Supper?]
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[00:12.27]What kind of fish are they?
[00:17.23]Fish and chips has always been a favourite dish in Britain,
[00:22.23]but as the oceans have been overfished, fish has become more and more expensive.
[00:28.54]So it comes as a surprise to learn that giant fish are terrifying the divers on North Sea oil rigs.
[00:37.41]Oil rigs have to be repaired frequently and divers, who often have to work in darkness
[00:44.69]a hundred feet under water, have been frightened out of their wits by giant fish bumping into them as they work.
[00:55.23]Now they have had special cages made to protect them from these monsters.
[01:01.05]The fish are not sharks or killer whales,
[01:04.84]but favourite eating varieties like cod and skate which grow to unnatural sizes,
[01:11.80]sometimes as much as twelve feet in length.
[01:16.73]Three factors have caused these fish to grow so large:
[01:21.21]the warm water round the hot oil pipes under the sea;
[01:26.20]the plentiful supply of food thrown overboard by the crews on the rigs;
[01:31.98]the total absence of fishing boats around the oil rigs.
[01:36.37]As a result, the fish just eat and eat and grow and grow in the lovely warm water.
[01:43.16]Who eats who?