阅读理解

　　下面有3篇短文，每篇短文后有5道题。请根据短文内容，为每题确定1个最佳选项。

　　Pushbike Danger

　　Low speed bicycle crashes can badly injure - or even kill - children if they fall onto the ends of the handlebars（车把）。 So a team of engineers is redesigning it to make it safer.

　　Kristy Arbogast， a bioengineer at the Children’s Hospital of Philadelphia in Pennsylvania， began the project wit h her colleagues. The cases they reviewed about serious abdominal （腹部的） 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 come 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 cause for serious injuries. They discovered that most cases occur when children hit an obstacle at slow speed， causing them to topple （摇摆） over. To maintain their balance the children turn the handlebars through 90 degrees —— but their momentum （冲力） forces them into the end of the handlebars. The bike then falls over and the other end of the handlebars hits the ground， pushing it into their abdomen （腹部）。

　　The solution the group came up with is a handgrip （握柄） fitted with a spring and damping （减速） system. The spring absorbs up to 50 per cent of the forces transmitted （传递） 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 manufacturers were unaware of the problem，” says Arbogast.

　　1 The engineers are trying to improve the handlebars because

　　A they are not beautiful.

　　B they may kill children.

　　C they are likely to crash.

　　D they affect the speed of the bike.

　　2 How many abdominal injuries in children were caused by bicycle accidents？

　　A Thirty.

　　B Ninety.

　　C 50 percent.

　　D More than a third.

　　3 The word “countermeasures” in paragraph 2 means

　　A “problems”。

　　B “approaches”。

　　C “solutions”。

　　D “actions”。

　　4 Paragraph 3 mainly discusses

　　A why the children and their parents were interviewed.

　　B how serious abdominal injuries occur.

　　C when the children turn the handlebars.

　　D what stops bicycle accidents.

　　5 The advantage of the new handgrip is that

　　A it can be made cheaply.

　　B it reduces the impact in bicycle accidents.

　　C it helps to slow down the speed of the bicycle.

　　D it sells well at bicycle shops.

点击查看原帖及答案>>

【辅导招生】

【特色班】2013年职称英语“特色班”网上辅导招生方案

【精品班】2013年职称英语“精品班”网上辅导招生方案

【实验班】2013年职称英语“实验班”网上辅导招生方案

24小时开通报名咨询热线：010-82318888　4008104588