




下载本文档
版权说明:本文档由用户提供并上传,收益归属内容提供方,若内容存在侵权,请进行举报或认领
文档简介
1、姓名:_ 班级:_ 学号:_-密-封 -线- 标签:标题考试时间:120分钟 考试总分:100分题号一二三四五总分分数遵守考场纪律,维护知识尊严,杜绝违纪行为,确保考试结果公正。1、pushbike perillow 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
2、.kristy arbogast, a bioengineer at the childrens 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
3、the injuries occurred and come up with some countermeasures,” she says.by interviewing the children and their parents, arbogast and her team were able tog reconstruct many of the accidents and identified a common mechanism responsible for serious injuries. they discovered that most occur when childr
4、en hit an obstacle at a slow speed, causing them to topple over5. 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 a
5、bdomen6.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 bik
6、e. “but our task has been one of education because up until now, bicycle manufacturers were unaware of the problem,” says arbogast.the team has also approached the us consumer product safety commission to try to persuade manufacturers to adopt the new design. a decision is expected later this year.a
7、ccording to the passage, some engineers are trying to improve the handlebars because ( )a.they are not noble enough.b.they may kill children.c.they are likely to crash.d.they make the bike move at a low speed.2、pushbike perillow speed bicycle crashes can badly injure or even kill children if they fa
8、ll onto the ends of the handlebars. so a team of engineers is redesigning the humble handlebar in a bid to make it safer.kristy arbogast, a bioengineer at the childrens hospital of philadelphia in pennsylvania, began the project with her colleagues after a study of serious abdominal injuries in chil
9、dren 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 tog reconstruct many of the a
10、ccidents and identified a common mechanism responsible for serious injuries. they discovered that most occur when children hit an obstacle at a slow speed, causing them to topple over5. to maintain their balance they turn the handlebars through 90 degrees but their momentum forces them into the end
11、of the handlebars. the bike then falls over and the other end of the handlebars hits the ground, ramming it into their abdomen6.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 handle
12、bars 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.the team has also approached the us consumer prod
13、uct safety commission to try to persuade manufacturers to adopt the new design. a decision is expected later this year.in paragraph 2, the author mentions a study of serious abdominal injuries ( )a.to discuss how abdominal injuries in children occur.b.to show that more than a third injuries were cau
14、sed by bicycle accidents.c.to point out what the countermeasures can be.d.to tell us why kristy arbogast began the project.3、pushbike perillow 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 h
15、andlebar in a bid to make it safer.kristy arbogast, a bioengineer at the childrens 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 acciden
16、ts. “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 tog reconstruct many of the accidents and identified a common mechanism responsible for serious injuries. they disc
17、overed that most occur when children hit an obstacle at a slow speed, causing them to topple over5. 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 t
18、he ground, ramming it into their abdomen6.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
19、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.the team has also approached the us consumer product safety commission to try to persuade manufacturers to adopt the new design. a deci
20、sion is expected later this year.paragraph 3 mainly discusses( )a.why the children and their parents were interviewed.b.when the children turn the handlebars through 90 degrees.c.what causes the children to topple over.d.how serious injuries occur.4、pushbike perillow speed bicycle crashes can badly
21、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.kristy arbogast, a bioengineer at the childrens hospital of philadelphia in pennsylvania, began the project with her colleagues after a stud
22、y 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 come up with some countermeasures,” she says.by interviewing the children and their parents, arbogast and her team
23、were able tog reconstruct many of the accidents and identified a common mechanism responsible for serious injuries. they discovered that most occur when children hit an obstacle at a slow speed, causing them to topple over5. to maintain their balance they turn the handlebars through 90 degrees but t
24、heir 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 abdomen6.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 th
25、e 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 manufacturers were unaware of the problem,” says arbogast.the team h
26、as also approached the us consumer product safety commission to try to persuade manufacturers to adopt the new design. a decision is expected later this year.the passage implies that( )a.it is not easy to persuade manufacturers to adopt the new design.b.the team of engineers has not found any counte
27、rmeasures.c.children like to ride bicycles at a very low speed.d.a lot of children were killed in bicycle accidents in the past 30 years.5、pushbike perillow 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 redesignin
28、g the humble handlebar in a bid to make it safer.kristy arbogast, a bioengineer at the childrens 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 b
29、icycle 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 tog reconstruct many of the accidents and identified a common mechanism responsible for serious injuries. they discovered that most occur when children hit an obstacle at a slow speed, causing them to topple over5. to maintain their balance they turn the handlebars through 90 degrees but their momentum forces
温馨提示
- 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。图纸软件为CAD,CAXA,PROE,UG,SolidWorks等.压缩文件请下载最新的WinRAR软件解压。
- 2. 本站的文档不包含任何第三方提供的附件图纸等,如果需要附件,请联系上传者。文件的所有权益归上传用户所有。
- 3. 本站RAR压缩包中若带图纸,网页内容里面会有图纸预览,若没有图纸预览就没有图纸。
- 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. 人人文库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,对用户上传分享的文档内容本身不做任何修改或编辑,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。
最新文档
- 公园铺位出租合同样本
- 办公花卉采购合同样本
- 以前临时用工合同标准文本
- 养殖合股合同范例
- 医院采购中标合同样本
- 加盟灯具店合同标准文本
- 个人施工 劳务合同标准文本
- 医院网络维保合同样本
- 劳务服务框架合同标准文本
- 公司炊事员用工合同样本
- 冀少 七年级 下册 生物 第三章 呼吸系统与气体交换《呼吸的过程(一、肺与外界的气体交换)》课件
- 2025年上半年浙江杭州钱塘新区管理委员会招聘政府雇员80人易考易错模拟试题(共500题)试卷后附参考答案
- 《水利工程白蚁防治技术规程SLT 836-2024》知识培训
- 固定收益投资合同范本
- GB/T 45236-2025化工园区危险品运输车辆停车场建设规范
- 2024-2025学年历史统编版七年级下册期中评估测试卷 (含答案)
- 天车安全教育培训课件
- 产业研究报告-2025年铝基中间合金行业发展现状、市场规模、投资前景分析
- 2025年山东省春季高考模拟考试数学试卷试题(含答案详解)
- 春夏季疾病预防
- 国家医保局-2024年医保支付方式改革培训班-DRG.DIP2.0版培训
评论
0/150
提交评论