ImageVerifierCode 换一换
格式:DOC , 页数:2 ,大小:46.50KB ,
资源ID:1449939      下载积分:3 金币
快捷下载
登录下载
邮箱/手机:
温馨提示:
快捷下载时,用户名和密码都是您填写的邮箱或者手机号,方便查询和重复下载(系统自动生成)。 如填写123,账号就是123,密码也是123。
特别说明:
请自助下载,系统不会自动发送文件的哦; 如果您已付费,想二次下载,请登录后访问:我的下载记录
支付方式: 支付宝扫码支付
验证码:   换一换

加入VIP,免费下载
 

温馨提示:由于个人手机设置不同,如果发现不能下载,请复制以下地址【https://www.ketangku.com/wenku/file-1449939-down.html】到电脑端继续下载(重复下载不扣费)。

已注册用户请登录:
账号:
密码:
验证码:   换一换
  忘记密码?
下载须知

1: 本站所有资源如无特殊说明,都需要本地电脑安装OFFICE2007和PDF阅读器。
2: 试题试卷类文档,如果标题没有明确说明有答案则都视为没有答案,请知晓。
3: 文件的所有权益归上传用户所有。
4. 未经权益所有人同意不得将文件中的内容挪作商业或盈利用途。
5. 本站仅提供交流平台,并不能对任何下载内容负责。
6. 下载文件中如有侵权或不适当内容,请与我们联系,我们立即纠正。
7. 本站不保证下载资源的准确性、安全性和完整性, 同时也不承担用户因使用这些下载资源对自己和他人造成任何形式的伤害或损失。

版权提示 | 免责声明

本文(VOA常速英语听力2012年11月合辑(文本):EFFORTS-MOUNT-TO-CONSERVE-WILD-TURKEY-BREEDS.doc)为本站会员(高****)主动上传,免费在线备课命题出卷组卷网仅提供信息存储空间,仅对用户上传内容的表现方式做保护处理,对上载内容本身不做任何修改或编辑。 若此文所含内容侵犯了您的版权或隐私,请立即通知免费在线备课命题出卷组卷网(发送邮件至service@ketangku.com或直接QQ联系客服),我们立即给予删除!

VOA常速英语听力2012年11月合辑(文本):EFFORTS-MOUNT-TO-CONSERVE-WILD-TURKEY-BREEDS.doc

1、Steve BaragonaNovember 17, 2012AMISSVILLE, VIRGINIA On November 22, Americans observe Thanksgiving, an iconic harvest festival with roots in the nations 17th-century settlement by European colonists. Roasted turkey is the traditional centerpiece. But the breeds of wild turkey on the table in early A

2、merica have nearly disappeared, replaced by a domesticated bird that is bigger, faster-growing and cheaper to raise. Around the world, many traditional livestock breeds are disappearing as industrial meat production takes over from small producers. But some are trying to preserve their old varieties

3、 as insurance against an uncertain future.A sprinkle of corn, and Rachel Summers turkeys come running. She raises a small flock of a breed called Standard Bronze at Crowfoot Farm, about an hour from Washington.These are birds with history, Summers says. They are what you would have found in colonial

4、 barnyards.And youll find them today in re-creations of those 17th and 18th-century barnyards, like the ones here at Claude Moore Colonial Farm outside Washington, where workers in period costumes are chopping wood for the fire. Summers started volunteering at the farm when she was just 11. It was h

5、ere, she says, she grew to love and appreciate these uncommon birds.When I started learning more about their history and their place in the world now, I realized how rare they are and how important it is to preserve them, Summers noted.Julie Long is a turkey researcher at the U.S. Department of Agri

6、culture. She says todays commercial birds were bred for size, then crossed with white-feathered varieties to produce unblemished skin.The heritage breeds are at risk simply because they are not being used commercially, Long explained. Those birds became very popular in about the 1950s and just took

7、over the market at that point.And heritage breeds nearly disappeared. Today there are fewer than 10,000 Standard Bronze turkeys left, according to the American Livestock Breeds Conservancy.Local livestock breeds are threatened in many parts of the world. One reason is that efficiency is trumping div

8、ersity in order to meet the growing demand for animal protein.But Long says it would be a mistake to lose the heritage breeds.Its best to keep these around, sort of as an insurance policy, Long added. You may never need those genetics. But if you do and theyre gone, then youre out of luck.That genet

9、ic insurance policy could provide tolerance for harsher environments brought on by climate change. Or resistance to new diseases. Or better ability to forage for themselves as the cost of commercial feed goes up.One key to saving these rare breeds, experts say, may be found in the kitchen. John Crit

10、chley is executive chef of Urbana Restaurant in downtown Washington. He prefers heritage birds to the standard supermarket variety.To me it has a better mouthfeel, said Critchley. It has a richer taste. A more buttery finish to it.A growing number of chefs and consumers are seeking out flavors they

11、say have been lost in modern agriculture.Sales of heritage turkeys for Thanksgiving are up. And Rachel Summers hopes this niche market will help preserve not just the flavor, but all the other useful traits of these heritage birds.Im not just raising these turkeys to sell for Thanksgiving, said Summers. I want to have them be available as a resource to the world, if needed. Just our few turkeys. Were just preserving a little piece of that here on our little farm.Just as Thanksgiving is about tradition, heritage turkeys are about keeping tradition alive.

网站客服QQ:123456
免费在线备课命题出卷组卷网版权所有
经营许可证编号:京ICP备12026657号-3