2023年职称英语理工类阅读理解训练题

雕龙文库 分享 时间: 收藏本文

2023年职称英语理工类阅读理解训练题

  Using enzymes commonly found in living cells,a new type of fuel cell produces small amounts of electricity from sugar.If the technology is able to succeed in mass production,you may some day share your sweet drinks with your cell phone.

  In fuel cells,chemical reactions generate electrical currents.The process usually relies on precious metals,such as platinum.In living cells,enzymes perform a similar job,breaking down sugars to obtain electrons and produce energy.

  When researchers previously used enzymes in fuel cells,they had trouble keeping them active,says Shelley D.Minteer of St Louis University1.Whereas biological cells continually produce fresh enzymes,theres no mechanism in fuel cells to replace enzymes as they quickly degrade.

  Minteer and Tamara Klotzbach,also of St Louis University,have now developed polymers that wrap around an enzyme and preserve it in a microscopic pocket.We tailor these pockets to provide the ideal microenvironment for the enzyme,Minteer says.The polymers keep the enzyme active for months instead of days.

  In the new fuel Cell,tiny polymer bags of enzyme are embedded in a membrane that coats one of the electrodes.When glucose from a sugary liquid gets into a pocket,the enzyme oxidizes it,releasing electrons and protons.The electrons cross the membrane and enter a wire through which they travel to the other electrode,where they react with.oxygen in the atmosphere to produce water.The flow of electrons through the wire constitutes an electrical current that can generate power.

  So far,the new fuel cells dont produce much power,but the fact that they work at all is exciting,says Paul Kenis,a chemical engineer at the University of Illinois2 at Urhana-Champaign3.Just getting it to work. Kenis says,is a major accomplishment.

  Sugar-eating fuel cells could be an efficient way to make electricity.Sugar is easy to find. And the new fuel cells that run on it are biodegradable,so the technology wouldnt hurt the environment.The scientists are now trying to use different enzymes that will get more power from sugar.They predict that popular products may be using the new technology in as little as 3 years.

  词汇:

  enzyme/5enzaIm/n.酶 electrode/I5lektrEJd/n.电极platinum/5plAtinEm/n.铂,白金 membrane/5membrein/n.膜,薄膜

  electron/I5lektrRn/n.电子 oxidize/5Cksi7daiz/v.氧化degrade/di5reid/v.降解 glucose/5lu:kEus/n.葡萄糖

  polymer/5pClimE/n.聚合物 biodegradable/7baiEudi5reidEbl/adj.能进行生物降解的

  microenvironment n.微环境 embed/im5bed/v.埋置,插入

  proton/5prEutCn/n.质子

  试题

  1. According to the first paragraph,when can we share our sweet drinks with our cell phones?

  A When enzymes can be commonly found in living ceils.

  B When the technology of producing a new type of fuel cell appears.

  C When the technology of a new type of fuel cell is suitable for mass production.

  D When the technology of mass producing cell phones appears.

  2. What trouble did Minteer and Klotzhach have in their research?

  A They had trouble keeping enzymes in fuel cells active.

  B They had trouble keeping biological cells active.

  C They had trouble producing fresh enzymes.

  D They had trouble finding mechanism for producing enzymes.

  3. According to Paragraph 5,electrons are released

  A when bags of enzyme are embedded in the new fuel cell.

  B when glucose from a sugary liquid goes through the enzyme.

  C when the enzyme oxidizes the glucose from a sugary liquid that goes through a pocket.

  D when the enzyme oxidizes the sugary liquid that goes through a pocket.

  4. What is exciting about the new fuel cells?

  A Their limitless power generation capacity is amazing.

  B Their limited power generation capacity is a good beginning.

  C Their limited power generation capacity is the result of great efforts.

  D Their limitless power generation capacity is a major accomplishment,

  5. According to the last paragraph,what is NOT true of the new fuel cells?

  A The new fuel cells run on sugar that is easy to find.

  B The new fuel cells are environment friendly.

  C The new fuel cells are biologically degradable,

  D It will take some time before the new fuel cells can be used in popular products.

  答案与题解:

  1. C A和D明显不是正确答案。B不是正确选择,因为只有当这种新的燃料电池被大规模生产时,才有可能实现用甜饮料给手机提供电能。

  2. A 文章第三段的第一句是问题的答案。

  3. C 该段第二句When glucose from a sugary liquid penetrates a pocket,the enzyme oxidizes it,releasing electrons and proton中的it指代glucose,而不是a sugary liquid,因 此C是正确选择。

  4. B 第六段的大意是,尽管这种新型燃料电池还不能产牛很多电能,但是,它能够产生电能的事实就已经是很大的成就了。因而激动人心。所以只有B是正确答案。

  5. D 文章的最后一段指出了这种新型燃料电池的优点,即A、B、C所述内容。最后一句说,科学家预计,在不到三年的时间里这种新技术便可在大众的流行产品中使用。所以D是正确选择

  

  Using enzymes commonly found in living cells,a new type of fuel cell produces small amounts of electricity from sugar.If the technology is able to succeed in mass production,you may some day share your sweet drinks with your cell phone.

  In fuel cells,chemical reactions generate electrical currents.The process usually relies on precious metals,such as platinum.In living cells,enzymes perform a similar job,breaking down sugars to obtain electrons and produce energy.

  When researchers previously used enzymes in fuel cells,they had trouble keeping them active,says Shelley D.Minteer of St Louis University1.Whereas biological cells continually produce fresh enzymes,theres no mechanism in fuel cells to replace enzymes as they quickly degrade.

  Minteer and Tamara Klotzbach,also of St Louis University,have now developed polymers that wrap around an enzyme and preserve it in a microscopic pocket.We tailor these pockets to provide the ideal microenvironment for the enzyme,Minteer says.The polymers keep the enzyme active for months instead of days.

  In the new fuel Cell,tiny polymer bags of enzyme are embedded in a membrane that coats one of the electrodes.When glucose from a sugary liquid gets into a pocket,the enzyme oxidizes it,releasing electrons and protons.The electrons cross the membrane and enter a wire through which they travel to the other electrode,where they react with.oxygen in the atmosphere to produce water.The flow of electrons through the wire constitutes an electrical current that can generate power.

  So far,the new fuel cells dont produce much power,but the fact that they work at all is exciting,says Paul Kenis,a chemical engineer at the University of Illinois2 at Urhana-Champaign3.Just getting it to work. Kenis says,is a major accomplishment.

  Sugar-eating fuel cells could be an efficient way to make electricity.Sugar is easy to find. And the new fuel cells that run on it are biodegradable,so the technology wouldnt hurt the environment.The scientists are now trying to use different enzymes that will get more power from sugar.They predict that popular products may be using the new technology in as little as 3 years.

  词汇:

  enzyme/5enzaIm/n.酶 electrode/I5lektrEJd/n.电极platinum/5plAtinEm/n.铂,白金 membrane/5membrein/n.膜,薄膜

  electron/I5lektrRn/n.电子 oxidize/5Cksi7daiz/v.氧化degrade/di5reid/v.降解 glucose/5lu:kEus/n.葡萄糖

  polymer/5pClimE/n.聚合物 biodegradable/7baiEudi5reidEbl/adj.能进行生物降解的

  microenvironment n.微环境 embed/im5bed/v.埋置,插入

  proton/5prEutCn/n.质子

  试题

  1. According to the first paragraph,when can we share our sweet drinks with our cell phones?

  A When enzymes can be commonly found in living ceils.

  B When the technology of producing a new type of fuel cell appears.

  C When the technology of a new type of fuel cell is suitable for mass production.

  D When the technology of mass producing cell phones appears.

  2. What trouble did Minteer and Klotzhach have in their research?

  A They had trouble keeping enzymes in fuel cells active.

  B They had trouble keeping biological cells active.

  C They had trouble producing fresh enzymes.

  D They had trouble finding mechanism for producing enzymes.

  3. According to Paragraph 5,electrons are released

  A when bags of enzyme are embedded in the new fuel cell.

  B when glucose from a sugary liquid goes through the enzyme.

  C when the enzyme oxidizes the glucose from a sugary liquid that goes through a pocket.

  D when the enzyme oxidizes the sugary liquid that goes through a pocket.

  4. What is exciting about the new fuel cells?

  A Their limitless power generation capacity is amazing.

  B Their limited power generation capacity is a good beginning.

  C Their limited power generation capacity is the result of great efforts.

  D Their limitless power generation capacity is a major accomplishment,

  5. According to the last paragraph,what is NOT true of the new fuel cells?

  A The new fuel cells run on sugar that is easy to find.

  B The new fuel cells are environment friendly.

  C The new fuel cells are biologically degradable,

  D It will take some time before the new fuel cells can be used in popular products.

  答案与题解:

  1. C A和D明显不是正确答案。B不是正确选择,因为只有当这种新的燃料电池被大规模生产时,才有可能实现用甜饮料给手机提供电能。

  2. A 文章第三段的第一句是问题的答案。

  3. C 该段第二句When glucose from a sugary liquid penetrates a pocket,the enzyme oxidizes it,releasing electrons and proton中的it指代glucose,而不是a sugary liquid,因 此C是正确选择。

  4. B 第六段的大意是,尽管这种新型燃料电池还不能产牛很多电能,但是,它能够产生电能的事实就已经是很大的成就了。因而激动人心。所以只有B是正确答案。

  5. D 文章的最后一段指出了这种新型燃料电池的优点,即A、B、C所述内容。最后一句说,科学家预计,在不到三年的时间里这种新技术便可在大众的流行产品中使用。所以D是正确选择

  

信息流广告 网络推广 周易 易经 代理招生 二手车 网络营销 招生代理 旅游攻略 非物质文化遗产 查字典 精雕图 戏曲下载 抖音代运营 易学网 互联网资讯 成语 成语故事 诗词 工商注册 注册公司 抖音带货 云南旅游网 网络游戏 代理记账 短视频运营 在线题库 国学网 知识产权 抖音运营 雕龙客 雕塑 奇石 散文 自学教程 常用文书 河北生活网 好书推荐 游戏攻略 心理测试 石家庄人才网 考研真题 汉语知识 心理咨询 手游安卓版下载 兴趣爱好 网络知识 十大品牌排行榜 商标交易 单机游戏下载 短视频代运营 宝宝起名 范文网 电商设计 免费发布信息 服装服饰 律师咨询 搜救犬 Chat GPT中文版 经典范文 优质范文 工作总结 二手车估价 实用范文 爱采购代运营 古诗词 衡水人才网 石家庄点痣 养花 名酒回收 石家庄代理记账 女士发型 搜搜作文 石家庄人才网 铜雕 词典 围棋 chatGPT 读后感 玄机派 企业服务 法律咨询 chatGPT国内版 chatGPT官网 励志名言 河北代理记账公司 文玩 朋友圈文案 语料库 游戏推荐 男士发型 高考作文 PS修图 儿童文学 买车咨询 工作计划 礼品厂 舟舟培训 IT教程 手机游戏推荐排行榜 暖通,电采暖, 女性健康 苗木供应 主题模板 短视频培训 优秀个人博客 包装网 创业赚钱 养生 民间借贷律师 绿色软件 安卓手机游戏 手机软件下载 手机游戏下载 单机游戏大全 免费软件下载 网赚 手游下载 游戏盒子 职业培训 资格考试 成语大全 英语培训 艺术培训 少儿培训 苗木网 雕塑网 好玩的手机游戏推荐 汉语词典 中国机械网 美文欣赏 红楼梦 道德经 网站转让 鲜花 社区团购 社区电商