20071119
你學英文單字,聯合國幫你捐米
http://www.freerice.com/index.php
可以玩玩英文單字遊戲,
又可以幫助世界上飢餓的國家,
答對一個單字,聯合國捐出十粒米。
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按!第一個字就要查眼睛先生了= ="
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How does the FreeRice vocabulary program work?
FreeRice has a custom database containing thousands of words at varying degrees of difficulty. There are words appropriate for people just learning English and words that will challenge the most scholarly professors. In between are thousands of words for students, business people, homemakers, doctors, truck drivers, retired people… everyone!
FreeRice automatically adjusts to your level of vocabulary. It starts by giving you words at different levels of difficulty and then, based on how you do, assigns you an approximate starting level. You then determine a more exact level for yourself as you play. When you get a word wrong, you go to an easier level. When you get three words in a row right, you go to a harder level. This one-to-three ratio is best for keeping you at the “outer fringe” of your vocabulary, where learning can take place.
There are 50 levels in all, but it is rare for people to get above level 48.
How is the difficulty level for each word determined?
The program keeps track of how many people get each word right or wrong, and then adjusts each word’s difficulty level accordingly. So the words at the easiest levels are the ones that people most often get right. The words at the hardest levels are the ones that people most often get wrong. As more and more people have played the game, these levels have become increasingly more accurate.
Does FreeRice make any money from this?
No, it does not. FreeRice runs the site at no profit.
Who distributes the donated rice?The rice is distributed by the United Nations World Food Program (WFP). The World Food Program is the world’s largest food aid agency, working with over 1,000 other organizations in over 75 countries. In addition to providing food, the World Food Program helps hungry people to become self-reliant so that they escape hunger for good. Wherever possible, the World Food Program buys food locally to support local farmers and the local economy. We encourage you to visit the United Nations World Food Program to learn more about their successful approach to ending hunger.
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