职称英语考试

【单选题】Pushbike Peril
Low speed bicycle crashes can badly injure —or even kill —children if they fall onto the ends of the handlebars so a team of engineers is redesigning the humble handlebar in a bid to make it safer.
KristyArbogast, a bioengineer at theChildren’s Hospital of Philadelphia in Pennsylvania, began the project with her colleagues after a study of serious abdominal injuries in children in the past 30 years showed that more than a third were caused by bicycle accidents. "The task was to identify how the injuries occurred and came up with some countermeasures," she says.
By interviewing the children and their parents,Arbogast and her team were able to reconstruct many of the accidents and identified a common mechanism responsible for serious injures. They discovered that most occur when children hit an obstacle at a slow speed, causing them to topple over. To maintain their balance they turn the handlebars through 90 degrees — but their momentum forces them into the end of the handlebars. The bike then falls over and the other end of the handlebars hits the ground, ramming it into their abdomen.
The solution the group came up with is a handgrip fitted with a spring and damping system. The spring absorbs up to 50 per cent of the forces transmitted through the handlebars in an impact. The group hopes to commercialize the device, which should add only a few dollars to the cost of a bike. "But our task has been one of education because up until now, bicycle manufacturer were unaware of the problem," saysArbogast.
The team has also approached the USConsumer Product SafetyCommission to try to persuade manufacturers to adopt the new design.A、decision is expected later this year.
handlebar n (常用复数) (自行车等的) 车把
abdominal adj. 腹部的redesign v. 重新设计
bioengineer n. 生物工程师reconstruct vt. 重建；重构
countermeasure n. 对策 abdomen n. 膜，腹部
momentum n.冲力 handgrip n. 握柄
damping adj. 制动的，减速的，缓冲的 commercialize vt. 使商品化
Paragraph 3 mainly discusses ______.A．why the children and their parents were interviewed
B．when the children tom the handlebars through 90 degrees
C．what causes the children to topple over
D．how serious injuries occur

网考网参考答案：D
网考网解析：
[解析] 因为上段中提到了研究的目的是“辨别受伤是怎样产生的，并想出一些应对措施”，因此推断C和D可能是答案。而该段的第1句(观点句)概述了全段的大意：By interviewing the children and their parents，Arbogast and her team were able to reconstruct many of the accidents and identified a common mechanism responsible for serious injuries．(与D呼应)而接下来的句子也是在具体说明他们如何进行实验 They discovered that...To maintain their balance they turn the handlebars through 90 degree...The bike then falls over and…因此D是答案。 document.getElementById("warp").style.display="none"; document.getElementById("content").style.display="block"; 查看试题解析出处>>