首页职称计算机职称英语公务员公务员面试医药卫生建筑工程外贸考试司法考试其他资格 微博微信QQ群
  1. 首页
  2. 考试指南
    考试政策 考试大纲 新手指导 职称考评
  3. 考试报名
    报考通知 报名时间 报名入口 沙龙国际 准考证打印 成绩查询 证书领取
  4. 综合类
  5. 理工类
  6. 卫生类
  7. 历年真题
  8. 模拟题库
  9. 考试技巧
    考试心得 备考技巧 名师辅导 专家解题 新增文章 教材和词典
  10. 培训辅导
您现在的位置:首页 > 职称英语 > 解题技巧 > 阅读理解 >

专家解题:2013年职称英语考试理工类B级阅读理解历年真题及答案解析2

来源:博大考神职称考试网 发布时间:2014-08-28
  考题类型:阅读理解
  Putting Plants to Work
  Using the power of the sun is nothing new. People have had solar-powered calculators  and buildings with solar panels(太阳能电池板) for decades. But plants are the real  experts: They've been using sunlight as an energy source for billions of years.
  Cells in the green leaves of plants work like tiny factories to convert sunlight,  carbon dioxide(二氧化碳), and water into sugars and starches(淀粉), stored energy  that the plants can use. This conversion process is called photosynthesis(光合作用).  Unfortunately, unless you're a plant, it's difficult and expensive to convert sunlight  into storable energy. That's why scientists are taking a closer look at exactly how  plants do it.
  Some scientists are trying to get plants, or biological cells that act like plants,  to work as miniature photosynthetic power stations. For example, Maria Ghirardi of the  National Renewable Energy Laboratory in Golden, Colo., is working with green algae.  She's trying to trick them into producing hydrogen instead of sugars when they perform  photosynthesis. Once the researchers can get the algae working efficiently, the hydrogen  that they produce could be used to power fuel cells in cars or to generate electricity.
  The algae are grown in narrow-necked glass bottles to produce hydrogen in the lab.  During photosynthesis, plants normally make sugars or starches. "But under certain  conditions, a lot of algae are able to use the sunlight energy not to store starch, but  to make hydrogen." Ghirardi says. For example, algae will produce hydrogen in an airfree  environment. It's the oxygen in the air that prevents algae from making hydrogen most of  the time.
  Working in an airfree environment, however, is difficult. It's not a practical way  to produce cheap energy. But Ghirardi and her colleagues have discovered that by  removing a chemical called sulfate (硫酸盐)from the environment that the algae grow in,  they will make hydrogen instead of sugars, even when air is present.
  Unfortunately, removing the sulfate also makes the algae's cells work very slowly,  and not much hydrogen is produced. Still, the researchers see this as a first step in  their goal to produce hydrogen efficiently from algae. With more work, they may be able  to speed the cells' activity and produce larger quantities of hydrogen.
  The researchers hope that algae will one day be an easy-to-use fuel source. The  organisms are cheap to get and to feed, Ghirardi says, and they can grow almost  anywhere: "You can grow them in a reactor, in a pond. You can grow them in the ocean.  There's a lot of flexibility in how you can use these organisms."
  36. How do plant relate to solar energy?
  A. They are the real experts in producing it.
  B. They have been a source of it
  C. They have been use to produce it.
  D. They have been using it for billions of year.
  专家解析:
  第一步:划出题干中的信息词。本题目信息词有:plant,relate to,solar energy。
  第二步:根据顺序出题原则,将信息词回归原文。本题回归至原文的第一段最后一句话,即:But plants  are the real experts: They've been using sunlight as an energy source for billions of  years.
  第三步:对比原文及题目信息,确定答案。题干问的是plant和solar energy是怎么联系在一起的?原文 说的是但是plants是真正的专家(real experts),他们已经把sunlight作为能源(as an energy  source)使用(using)上亿年了(for billions of years)。也就是选项D说的they(他们,指代 plants)已经使用它(it,指代solar energy太阳能)上亿年了for billions of years。可见和原文 意思一致,所以本题的答案为选项D。
  37. Scientists study how photosynthesis is works because they want to
  A. improve the efficiency of it.
  B. make green plants a new source of energy.
  C. turn plant sugar to a new form of energy.
  D. get more sugars and starches form plants.
  专家解析:
  第一步:划出题干中的信息词。本题目信息词有:Scientists,study,how,photosynthesis,because 。
  第二步:将信息词回归原文。本题回归至原文的第二段后半部分,即:This conversion process is  called photosynthesis(光合作用). Unfortunately, unless you're a plant, it's difficult  and expensive to convert sunlight into storable energy. That's why scientists are taking  a closer look at exactly how plants do it.
  第三步:对比原文及题目信息,确定答案。题干问的是Scientists研究(study)photosynthesis 怎么 工作(works)是因为(because)他们想怎么样。原文第二段最后一句话出现了because的对应词why, 并且提到了how plants do it(plants怎么做到的),可见答案应该在why所在句子的前面,即除非 (unless)是plants,不然很难(difficult)而且代价也很高(expensive)把sunlight转变为 (convert)为可储藏的能源(storable energy)。也就是选项B所说的使green plants成为一种新能源 (a new source of energy),故本题的答案为选项B。
  38. Algae are able to use solar energy to produce hydrogen when
  A. they are grow in narrow-necked bottles.
  B. there is enough oxygen in the air.
  C. there is no oxygen in the air.
  D. enough starch is stored.
  专家解析:
  第一步:划出题干中的信息词。本题目信息词有:Algae,produce hydrogen,when。
  第二步:根据顺序出题原则,将信息词回归原文。本题回归至原文的第四段后半部分,即: "But under  certain conditions, a lot of algae are able to use the sunlight energy not to store  starch, but to make hydrogen." Ghirardi says. For example, algae will produce hydrogen  in an airfree environment. It's the oxygen in the air that prevents algae from making  hydrogen most of the time.
  第三步:对比原文及题目信息,确定答案。题干问的是在什么时候(when)algae能使用(able to use )solar energy来产生(produce)hydrogen。原文说的是在某些条件下(under certain conditions ),algae能使用(able to use)sunlight energy(也就是solar energy)来产生(make)hydrogen 。比如(for example),algae在真空环境(airfree environment)中能产生(produce)hydrogen。 因为空气中的oxygen阻止(prevents)了algae产生(making)hydrogen。可见答案就是选项C的there  is no oxygen in the air(空气中没有oxygen)。所以本题的答案为选项C。
  39. Researchers find it difficult to make algae produce hydrogen efficiently because
  A. it is hard to create an air free environment.
  B. removing the sulfate slows down hydrogen production.
  C. it is expensive to remove the sulfate from the environment.
  D. the algae's cells work slowly if there is no oxygen in the air.
  专家解析:
  第一步:划出题干中的信息词。本题目信息词有:difficult,efficiently,because。
  第二步:将信息词回归原文。本题回归至原文的第六段前半部分,即:Unfortunately, removing the  sulfate also makes the algae's cells work very slowly, and not much hydrogen is  produced. Still, the researchers see this as a first step in their goal to produce  hydrogen efficiently from algae.
  第三步:对比原文及题目信息,确定答案。题干问的是Researchers发现(find)使algae高效 (efficiently)地产生(produce)hydrogen很难(difficult)是因为什么。原文说的是removing  the sulfate导致algae的cells工作的很慢(work slowly),而且没产生多少hydrogen。另外, researchers把这看作为从algae中高效(efficiently)生产hydrogen目标的第一步。可见困难的原因就 是removing the sulfate导致algae的cells工作的很慢(work slowly),也就是选项B说的removing  the sulfate降低了(slows down)的hydrogen产量(production)。所以本题的答案为选项B。
  40. What does Ghirardi say about algae?
  A. They can be a good energy source.
  B. They grow faster in a reactor.
  C. They will be planted everywhere.
  D. They are cheap to eat.
  专家解析:
  第一步:划出题干中的信息词。本题目信息词有:Ghirardi,say。
  第二步:根据顺序出题原则,将信息词回归原文。本题回归至原文的最后一段,即:The researchers  hope that algae will one day be an easy-to-use fuel source. The organisms are cheap to  get and to feed, Ghirardi says, and they can grow almost anywhere: "You can grow them in  a reactor, in a pond. You can grow them in the ocean. There's a lot of flexibility in  how you can use these organisms."
  第三步:对比原文及题目信息,确定答案。题干问的是Ghirardi关于algae说了(say)什么?原文说的是 他们(they指代algae)几乎可以到处生长 (grow almost anywhere)。“可以种在reactor,pond, ocean里。”也就是选项C说的他们(they指代algae)能被种植在任何地方(planted everywhere)。所以 本题的答案为选项C。
  为帮助考生用最轻松的方式通过职称英语考试,考职称网官方推荐:博大考神职称英语家庭式培训班,它是在家里上的面授班,通过打造轻松愉快的学习过程,帮助考生掌握职称英语的考试技巧,提供贴心的班主任全程督导服务帮助考生坚持学完所有课程,只要学习达标,即可通过考试,不过退款!(职称英语零基础通关QQ交流群:347526614)2015年如何轻松通过职称英语考试?】  <<<<<职称英语vip保过,不过退款!<>  <<<<<职称英语零基础也不怕?这里保过!<>  <<<<<什么是职称英语?有什么通过秘诀吗?<>  <<<<<职称英语教父幺建华揭秘过关技巧<>   <<<<<在家也可以上职称英语面授班!<>    <<<<<不用背单词也能通过职称英语!<>
本文链接:http://www.kaozc.com/kaoshi-150-154594-1.html
  1. 我去年购买的550的培训班,今年没有通过... 您好 去年参加我们班级没有通过考试...
  2. 2017年职称英语培训报名费多少 ?  我们博大职称英语的培训班是针对零基...
  3. 请问博大考神2017年职称英语0基础培训,... 新课程预计是在国庆前才会上市的,现...
  4. 我要参加职称英语考试,可是我英语基础...您好,我们博大考神是提供学习保过培训...
  5. 天津2016年职称英语证书可以邮寄吗? 可以选择邮寄,也可以自行去领取...
  6. 上海职称英语合格证书什么时候可以领取?上海市2016年度全国职称计算机考试合格...
  7. 请问中级职称英语考什么级别?博大考试...  一般中级是需要报考B 类的。针对职...
  8. 我13年购买了职称英语课程,今年再购买... 您好 购买13年课程的时候有一张金币...
  9. 明年的职称英语培训你们开班了没啊?有...  职称英语培训班我们预售班已经在销...
  10. 我今年50岁了,需要评中级职称可以免考... 您好 评职称的具体的要求是根据考试...
 沙龙国际娱乐平台