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Those who care about motorcycle safety request the Snell seal for approval
Passing the test
In all, five Snell lab techs abuse between 3,000 and 4,000 helmets each year. The testers chart the effect of their various forms of torture with computerised equipment, and Snell denies certification to any model that doesn't pass.
To start the Snell process, manufacturers must submit five helmets for each size and model. In each batch of five, one helmet is heated to 120 degrees(F) and another chilled to 5 degrees (F) before being tested to show how it would protect in [----1----]. Another is dunked in water and tested wet, and a fourth is tested at room temperature.
The fifth is stored undamaged as a "reference" model if questions ever arise about its construction or safety. Once a model is certified, manufacturers can affix a Snell sticker to the inside as [----2----] approval.
After the tests are complete and the helmets hit the market, Snell will then purchase the same models at retail stores and test them again to be sure they meet the same standards as the samples submitted by the manufacharer. If they don't, the manufacturer is alerted and told to check for problems in their manufacturing, the materials they are using or other [----3----].
The cost of safety
Such rigor has given Snell stickers clout in the [----4----] and allowed manufacturers to charge more for certified products.
"Anybody who knows anything about helmets always wants Snell," said Dodge of the Helmet Source. "We recommend it and most customers request it. Having the Snell sticker increases the product's value."
[But] if customers balk at the higher prices, Dodge said he has one response: "We tell them if you have a $5 head, then go ahead and buy a $5 helmet."
Vocabulary Focus
dunk (v) to put something into liquid for a short time
clout (n) power and influence
balk at (phr v) to be unwilling to accept something
Exercises for Today:
听写&翻译练习:(奖励50HY)a) 听写填空:补全课文中的空白处。
b) 翻译:翻译文本中高亮的句子(注意联系上下文哦)
讨论问题:(奖励100HY~200HY) 今日话题讨论点击进入c)
New:每日Skit听写:奖励50HY ~ 250HY(猫头鹰听力剧院改版中!更多奖励活动哦~)
点击进入 说明:
1.本栏目由空中英语教室授权沪江网制作.
2.更新频率:周一至周六。
3."讨论"话题全新改版至小组讨论,奖励升级,凡参与者奖励
100HY,积极参与者奖励
200HY。
4.参考答案、译文及课文讲解音频回复可见。
5.
课文音频下载
6.
多重参与方式:1)小组讨论 2)节目订阅 3)Skype每日在线语音讨论

7.
Skype每日在线语音讨论特别说明:彭蒙惠语音讨论群详细图解说明安装skype后,加每日语音主持人
xy_chouchou@163.com和
dantekung@gmail.com时间: 周一至周六, 周日Free Talk 19:00-20:00
内容: 对课文词汇和文章进行讨论
沪江答题纸加载中……
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[此贴子已经被作者于2008-6-9 20:32:50编辑过]