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标题: [求助]TT 4-27 [打印本页]

作者: MayFair 时间: 2006-8-4 19:57
标题: [求助]TT 4-27

Q27:

In parts of the Caribbean, the manatee, an endangered marine mammal, has long been hunted for its meat. Having noted the manatee hunters’ expert knowledge of manatees’ habits, local conservationists are encouraging the hunters to stop hunting and instead to take tourists on boat rides to see manatees. Tourist interest is high, so the plan has promise of achieving the twin goals of giving the former hunters a good income and helping ensure the manatees’ survival.

Which of the following, if true, raises the most serious doubt about the plan’s chance of success?

Many tourists who visit these parts of the Caribbean are uninterested in manatees and would not be willing to pay what the former manatee hunters would have to charge for boat rides to see manatees.
Recovery of the species would enable some hunting to continue without putting the manatees’ survival in jeopardy again.
In areas where manatees have traditionally been hunted for food, local people could easily replace the manatee meat in their diets with other foods obtained from the sea.
There would not be enough former manatee hunters to act as guides for all the tourists who want to see manatees.
To maintain their current income, manatee hunters who switched to guiding tourists would have to use far larger boats and make many more trips into the manatees’ fragile habitat than they currently do.

答案是E。

为什么A不好？

先谢谢了。

作者: susancheng 时间: 2006-8-5 01:01

I try!

A means many tourists, but not most tourists.

this means it is possible that many other tourists will pay fee to the hunters.

E states that manatee hunters ,make many more trips into the manatees’ fragile habitat than they currently do.

Compare the conditions between before plan and after plan.

作者: MayFair 时间: 2006-8-5 07:08

E提到了收入和生存环境。看起来是好一点。

谢谢Susan了。

作者: maydaythekid 时间: 2006-8-14 09:07

另一个讨论帖：http://forum.chasedream.com/dispbbs.asp?BoardID=24&replyID=1570396&id=167639&skin=0

同意Susan的说法，措施前后状况的比较，比较切题！

作者: chamcham 时间: 2007-6-26 16:30
E. A contradicts to the premise

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