页面未找到 - 233网校

哎呀,您访问的页面不存在!

您输入的网址不正确,或者该网址不存在。

10秒后跳转到233网校首页 返回首页

页面未找到 - 233网校

哎呀,您访问的页面不存在!

您输入的网址不正确,或者该网址不存在。

10秒后跳转到233网校首页 返回首页

您现在的位置:233网校>学位英语>模拟试题

湖南2017年成人学位英语考试预测试题及答案一

来源:233网校 2017年8月3日
导读: 湖南2017年成人学位英语考试预测试题及答案一已经公布。

二、阅读理解
  American scientists have developed the first material that repairs itself. The material is a form of plastic that has been engineered to fill breaks in its surface. Plastics are used today in everything from airplane wings to hundreds of object found in the home. Scientists wanted to find a way to make objects made of plastic last longer. The researchers hope their new discovery can be used to make objects that are difficult or impossible to replace. The surface of plastic objects breaks over time. Very small breaks develop every time a plastic object is used. The researchers wanted to find out how to stop plastic from developing small breaks that weaken and destroy it. They found the answer in the chemical structure(构造)of plastic itself. Plastic is made of monomers(单体). These monomers link together to form polymers(聚合物). Polymers give plastic its ability to be shaped and its strength. The research team found a way to make plastic that contains very small balloons filled with monomer liquid(液体). When the new plastic cracks(裂开), the monomer liquid is let out and flows into the crack. Thus the break is repaired. The repaired plastic has seventy – five percent of the strength of undamaged plastic. The new self – repairing plastic is not yet ready for production. But it has several possible uses. One could be in space vehicles where parts cannot be repaired or replaced. Another possible use might be in bridges. And it could be used in people, to replace bone joints that have become broken or damaged.
  11.Which of the following can be the best title for the article?
  A.Ever – Lasting Material Invented. B.The Chemical Structure of Plastic.
  C.Plastic that Repairs Itself. D.Small Balloons that Makes Plastic Stronger.
  答案:C
  12.We know from the passage that the repair is done as .
  A.the cracked plastic parts are changed B.the plastic is made
  C.the liquid is put into the plastic cracks D.the plastic cracks
  答案:D
  13.The scientist are planning to use the new material in space vehicles, bridges and people because .
  A.the plastic parts in them are required to last longer B.the plastic parts in them are easily broken or damaged
  C.the new material cannot be used elsewhere D.they want to experiment in these places first
  答案:A
  14.What can we know about the new material talked about in the passage?
  A.It is a kind of liquid that is commonly used. B.It is more difficult to make than common plastics.
  C.Its surface does not crack so easily as other ones. D.It makes it difficult or impossible to replace plastic objects.
  答案:B

学位英语考试:2017年成人学位英语考试试题题型详解2017学位英语考试报名

告别盲目备考,讲师全程把关特训,2017年成人学位英语考试一次过不是问题!点击进入>>


扫一扫,随时随地,学位英语报考抢先看!

责编:cll
页面未找到 - 233网校

哎呀,您访问的页面不存在!

您输入的网址不正确,或者该网址不存在。

10秒后跳转到233网校首页 返回首页

登录

新用户注册领取课程礼包

立即注册
扫一扫,立即下载
意见反馈 返回顶部