第六篇
第六篇Making Light of1 Sleep
All we have a clock located inside our brains. Similar to your bedside alarm clock，your internal clock2 runs on a 24-hour cycle. This cycle，called a circadian rhythm，helps control when you wake，when you eat and when you sleep.
Somewhere around puberty，something happens in the timing of the biological clock. The clock pushes forward，so adolescents and teenagers are unable to fall asleep as early as they used to. When your mother tells you it's time for bed，your body may be pushing you to stay up3 for several hours more. And the light coming from your computer screen or TV could be pushing you to stay up even later.
This shift4 is natural for teenagers. But staying up very late and sleeping late can get your body's clock out of sync with the cycle of light and dark5. It can also make it hard to get out of bed in the morning and may bring other problems，too. Teenagers are put in a kind of a gray cloud6 when they don't get enough sleep，says Mary Carskadon，a sleep researcher at Brown University in Providence，RI7 .It affects their mood and their ability to think and learn.
But just like your alarm clock，your internal clock can be reset. In fact，it automatically resets itself every day. How? By using the light it gets through your eyes.
Scientists have known for a long time that the light of day and the dark of night play important roles in setting our internal clocks. For years，researchers thought that the signals that synchronize the body's clock8were handled through the same pathways that we use to see.
But recent discoveries show that the human eye has two separate light-sensing systems. One system allows us to see. The second system tells our body whether it's day or night.
词汇：
circadian/s3:'keidi?n/ adj. 昼夜节奏的，生理节奏的adolescent/?d?u'les?nt/ n．青少年；adj．青少年的puberty/ 'pju:b?ti/ n．发育；青春期sync/si?k/ n. （口语）同步；和谐，协调synchronize/'si?kr?naiz / V.（使）同时发生；（使）同步
注释：
1.make light of ：轻视，不在乎。例如：We should not make light of their achievements．我们不应当低估他们的成就。
2. your internal clock ：指的是第一句中的a clock located inside our brains ，也即是第二段第一句中的the biological clock （生物钟）。
3. stay up：不睡觉，熬夜
4. This shift：这种调整。指上文所描述的由于生理时间的变化青少年上床时间越来越晚的现象。
5. get your body's clock out of sync with the cycle of light and dark ：打乱了你的生物钟与昼夜时间循环之间的平衡
6. gray cloud ：提不起精神的状态
7. Brown University in Providence，RI：位于美国罗得岛州普罗维登斯的布朗大学。RI是RhodeIsland（罗得岛）的首字母缩写；Providence 是罗得岛州的首府。布朗大学是美国一流大学，创建于1764 年，是世界闻名的美国“常春藤联盟”（还包括哈佛大学、耶鲁大学、普林斯顿大学、布朗大学、哥伦比亚大学、宾夕法尼亚大学、达特茅斯大学和康奈尔大学）中的一员。
8. the signals that synchronize the body's clock：平衡生物钟的光信号
练习：
1 .The clock located inside our brains is similar to our bedside alarm clock because
A it controls when we wake，when we eat and when we sleep.
B it has a cycle of 24 hours.
C it is a cycle also called circadian rhythm.
D it can alarm any time during 24 hours.
2. What is implied in the second paragraph?
A Young children's biological clock has the same rhythm with that of the teenagers.
B People after puberty begin to go to bed earlier due to the change of the biological clock.
C Children before puberty tend to fall asleep earlier at night than adolescents.
D Teenagers go to bed later than they used to due to the light from the computer screen.
3. In the third paragraph the author wants to tell the reader that
A it is natural for teenagers to stay up late and get up late.
B staying up late has a bad effect on teenagers' ability to think and learn.
C during puberty most teenagers experience a kind of gray cloud.
D it is hard for teenagers to get out of bed in the morning.
4. Which of the following statements is NOT true according to the fourth and fifth paragraphs?
A Our biological clock resets itself automatically.
B light gets through our eyes and resets our biological clock.
C Our internal clock as well as the alarm clock can be reset automatically.
D Our internal clock，like the alarm clock，can be reset.
5. According to the last two paragraphs，what did the previous researchers think about the human eye's light-sensing system?
A The human eye had two light-sensing systems.
B The human eye had one light-sensing system.
C The human eye could sense the light of day more quickly than the dark of night.
D The human eye could reset our internal clocks in accordance with the alarm clocks.
答案与题解：
1.B 第一段第二句提供了答案。句中的your internal clock 即指a clock located inside our Brains。
2. C 第二段主要内容是告诉读者，过了青春期（puberty），由于生物钟节奏的变化，青少年（adolescents and teenagers）比以前要晚睡几小时。所以C是该段所隐含的内容。
3. B 第三段的最后一句直接给出了答案。
4. C 根据第四和第五段的内容，闹钟和生物钟都可以重新设定时间但生物钟能通过眼睛接受的日光来自动调节生理节奏。所以A、B和D都是这两段中所述内容，C是正确选择，因为闹钟不能自动重新设定时间。
5.B 问题使用的是过去时，问的是研究者在最新发现（recent discoveries）之前对眼睛感光系统的认识，即，the signals that synchronize the body's clock were handled through the same pathways that we use to see （眼睛所接受到的平衡生物钟的光
信号同样作用于人类的视觉系统），也就是说，研究者之前认为人类的眼睛只有一个感光系统。但最新发现却是，人的眼睛有两个感光系统。
第十九篇
Graphene's Superstrength1
Big technology comes in tiny packages. New cell phones and personal computers get smaller every year，which means these electronics require even smaller components on the inside.
Engineers are looking for creative ways to build these components，and they've turned their eyes to graphene，a superthin2 material，made of carbon，that could change the future of electronics.
This year's Nobel Prize for Physics3 has been awarded to Andre Geim and Kostya Novoselov from the University of Manchester4，UK. for the discovery of graphene. Graphene isn't just small,it's“the thinnest possible material in this world，” says Novoselov. He calls it a“wonder material. ”It's so thin that you would need to stack about 25,000 sheets just to make a pile as thick as a piece of ordinary white paper. If you were to hold a sheet of graphene in your fingers5，you'd have no idea because you wouldn't be able to see it.
Carbon is one of the most abundant elements in the universe. Every known kind of life contains carbon. Graphene is a sheet of carbon，but only one atom thick. You don't have to look far to find grapheme —it's all around you.
If you want this high-tech wonderstuff6，all you need is a pencil，paper and a little adhesive tape. Use the pencil to shade a small area on the paper, and then apply a small piece of adhesive tape over the area7. When you pull up the tape，you'll see that it pulls up a thin layer of some of the shading from your pencil. That layer is called graphite，one of the softest minerals in the world.
Now stick the same piece of tape on another sheet of paper and pull the tape up —there should be an even thinner layer，this time left on the paper. Now imagine that you do this over and over，until you get the thinnest possible layer of material on the paper. This layer would be only one atom thick，and you wouldn't be able to see it. Graphite is made of layers of graphene，so when you get to the thinnest possible layer，you've found graphene.
词汇：graphene/ 'gr?fi:n/ n．石墨烯abundant/?’b?nd?nt / adj．丰富的，充裕的atom/ '?t?m/n．原子adhesive/ ?d'hi:siv/ n．胶粘剂；adj. 黏着的stack/st?k/ v．使成堆，堆放graphite / 'gr?fait / n．石墨
注释：
1. superstrength：超强的力量。该词是一个合成词，由两部分组成，super（超级的）和strength （力量）。
2. superthin：超薄。见注释1。
3. Nobel Prize for Physics ：诺贝尔物理学奖
4. the University of Manchester：曼彻斯特大学。这是一所位于英国曼彻斯特市的公立研究型大学，创建于1851 年。
5. If you were to hold a sheet of graphene in your fingers：句子使用的是虚拟语气，因为不可能将几乎肉眼看不到的石墨烯放在指尖上。
6. wonderstuff：神奇物。该词为合成词由wonder（神奇）和stuff（东西）两个词构成。wonderstuff 指的是第二段提到的wonder material。
7. apply a small piece of adhesive tape over… ：将一小片胶带敷在……上。
练习：
1 .What would change the future of electronics according to engineers?
A Big technology.
B Creative ways.
C Graphene.
D Both A and B.
2. According to the second and third paragraphs，what is true of graphene?
A It can be used to make paper.
B It is possible to see it with our naked eye.
C It is easy to find graphene.
D It is possibly the thickest material in the world.
3. Which of the following can be used to replace the word “apply”in pa ragraph 4?A request.B polish.C use.D put.
4. Which of the following is NOT meant in the last two paragraphs?
A Graphene is made of graphite，one of the softest materials in the world.
B Graphite is made of layers of graphene，the thinnest material in the world.
C When we get to the thinnest possible layer of graphite，we find graphene.
D With a pencil，a sheet of paper and a piece of adhesive tape，we can find graphene.
5. Graphene's superstrength lies in the fact that
A It is the thinnest material in the world.
B It is made of the most abundant elements in the world.
C It can help to make electronic components smaller.
D It helps engineers to produce more sensitive electronic products.
答案与题解：
1. C 第一段最后一句提供了答案：工程师将眼光投向石墨烯一种由碳原子组成的超薄材料，这种材料能够改变电子产品的未来。
2.C 第二段倒数第二句告诉我们，25,000 层石墨烯才能堆砌成一张普通白纸的厚度，这是为了说明石墨烯是多么的薄，而不是说它可以用来造纸，所以A不是正确答案。第三段最后一句说明石墨烯就在我们周围，因此C是答案。B和D的表述内容都与该两段内容不符合。
3.D apply... over：将……涂（敷）在……上。
4.A 最后两段告诉我们，用一张纸，一支铅笔和一片胶带就能找到石墨烯；无数层石墨烯构成石墨，当铅笔留在纸上的石墨被胶带剥离到最薄一层时，我们就得到了石墨烯。因此只有A不是最后两段的表述内容。
5. C 第一段提供了答案。随着电子产品越来越小，需要更小的电子组件（components) ，而石墨烯作为最薄的材料可以帮助工程师实现这一目标。这就是石墨烯力量所在。
*第三＋八篇"Life Form Found" on Saturn's Titan Scientists say they have discovered hints of alien life1 on the Saturn's moon2. The discovery of a sort of life was announced after researchers at the US space agency,NASA3,analyzed data from spacecraft Cassini4,which pointed to,the existence of methane-based form of life on Saturn's biggest moon.
Scientists have reportedly discovered clues showing primitive alien beings are"breathing" in Titan's dense atmosphere filled with hydrogen.
They argue that hydrogen gets absorbed before hitting Titan's planet-like surface covered with methane lakes and rivers. This,they say,points to the
existence of some"bugs"5 consuming the hydrogen at the surface of the moon less than half the size of the Earth.
"We suggested hydrogen consumption because it's the obvious gas for life to consume on Titan,similar to the way we consume oxygen on Earth,"says NASA scientist Chris McKay."If these signs do turn out to be a sign of life,it would be doubly exciting because it would represent a second form of life independent from water-based life on Earth."
To date,scientists have not yet detected this form of life anywhere,though there are liquid-water-based microorganisms on Earth that grow well on methane or produce it as a waste product. On Titan, where temperatures are around 90 Kelvin6(minus 290 degrees Farenheit),a methanebased organism would have to use a substance that is liquid as its medium for living processes, but not water itself. Water is frozen solid on Titan's surface and much too cold to support life as we know it.
Scientists had expected the Sun's interactions with chemicals in the atmosphere to produce a coating of acetylene on Titan's surface. But Cassini detected no acetylene on the surface.
The absence of detectable acetylene on the Titan's surface can very well have a non-biological explanation,said Mark Allen,a principal investigator7 of the NASA Titan team.
"Scientific conservatism suggests that a biological explanation should be the last choice after all non-biological explanations are addressed,"Allen said. "We have a lot of work to do to rule out8 possible non-biological explanations. It is more likely that a chemical process,without biology,can explain these results."
词汇：
Saturn /'s?t?n/ n．土星methane/'mi:θein/ n．甲烷，沼气
Titan/'tait?n/ n．土卫六acetylene/?'setili:n/ n．乙炔
alien/'eilj?n/ n．外星人；adj．外星球的；相异的
conservatism/k?n's?:v?tiz?m/ n．保守主义,守旧
注释：
1.hints of alien life：外星生命迹象。
2.the Saturn's moon：指土卫六（Titan)土卫六又称泰坦星，是土星卫星中最大的一颗。
3.NASA：美国国家航空航天局的缩写，全称是：National Aeronautics and Space Administration。
4.spacecraft Cassini：卡西尼号探测器，以出生于意大利的法国天文学家卡西尼的名字命名，其任务是环绕土星飞行，对土星及其大气、光环、卫星和磁场进行深人考察。1997 年10 月15日，重六吨的“卡西尼”号星际探测器被发射飞往土星的轨道。这是上世纪发射的最后一艘行星际探测的大飞船。“卡西尼”号用了将近七年时间，在2004 年7月1日飞达土星轨道。
5.bugs：微生物。非正式口语表达，所以使用了引号。
6.Kelvin：可翻译成“绝对温度”。Kelvin Scale ，绝对温标，开氏温标，是由Kelvin 勋爵于19世纪中叶发明的温度计量方法，其零度相当于摄氏一273. 15" C ，被认为是宇宙中最低温度。这种温度计量方法多为科学家使用。
7.principal investigator：研究项目负责人
8.rule out：排除……的可能性
练习：
1 .What have scientists found about Saturn?
A They have found a new moon orbiting Saturn.
B They have found methane-based life on Saturn.
C They have found methane-based life on Titan.
D They have found earthlike life on a Saturn's moon.
2. What do scientists say about Titan?
A There are life clues there.
B There is acetylene there.
C Water on Titan exists in the form of ice.
D Rivers and lakes there contain life formls.
3. To date,scientists have not yet detected this form of life.(paragraph 5)What does"this form
of life" refer to?
A Water-based life.
B Methane-based life.
C Liquid-water-based microorganisms.
D Gas-based life.
4. What can be inferred from what Allen said?
A Scientists have different arguments over whether there is life on Titan.
B Scientists all agree that there is life on Titan.
C Scientists all suggest that a biological explanation is reasonable.
D Scientists all agree that a non-biological chemical reaction is a possible explanation.
5. Which of the following can replace the title of this passage?
A Earthlike Living Beings Found on Titan.
B Finding of One More Moon of Saturn.
C Titan,a New Satellite Found.
D A different Life Form, a Possibility.
答案与题解：
1. C 短文的第一段提供了答案。该段告诉读者，科学家在土星的卫星土卫六（Titan ）上发现了生命的迹象，这些生命的存在是以甲烷为基础的。
2.A根据第二段“Scientists have reportedly discovered clues showing primitive alien beings are
'breathing' in Titan's dense atmosphere filled with hydrogen.”，说明土卫六（Titan）有生命迹象。因此A是答案。
3. B this form of life 指的是土卫六（Titan ）上以甲烷为生命基础呼吸氢气的生物，即该文讨论的主题。
4.A科学家至今对土卫六是否存在生物有不同的观点和解释。Allen 说要做出土卫六上有生物的结论，首先必须对Titan 上没有生物的观点做出回应；要排除土卫六上可能没有生物的观点，我们还须付出努力。所以只有A是正确选择。
5.D该短文的主题是，科学家在土卫六（Titan ）上发现了一种与地球生物不同的生命形式的迹象，即以甲烷为生命基础呼吸氢气的生物，但科学家还未能最后验证这一发现。第四
段中的一个句子能够揭示该短文的主题：“If these signs do turn out to be a sign of life, it would bedoubly exciting because it would represent a second form of life independent from water-based life on Earth.”
*第四十篇Teaching Math, Teaching Anxiety
In a new study about the way kids learn math in elementary school, the psychologists at the University of Chicagol1 Sian Beilock and Susan Levine found a surprising relationship between what female teachers think and what female students learn:If a female teacher is uncomfortable with her own math skills, then her female students are more likely to believe that boys are better than girls at math.
"If these girls keep getting math-anxious female teachers2 in later grades, it may create a snowball effect on their math achievement3 said Levine. In other words,girls may end up learning math anxiety from their teachers4. The study suggests that if these girls grow up believing that boys are better at math than girls are,then these girls may not do as well as they would have if
they were more confident.
Just as students find certain subjects to be difficult, teachers can find certain subjects to be difficult to learn -- and teach. The subject of math can be particularly difficult for everyone.
Researchers use the word "anxiety" to describe such feelings: anxiety is uneasiness or worry.
The new study found that when a teacher has anxiety about math, that feeling can influence how her female students feel about math. The study involved 65 girls,52 boys and 17 first- and second-grade teachers in elementary schools in the Midwest. The students took math achievement tests at the beginning and end of the school year, and the researchers compared the scores.
The researchers also gave the students tests to tell whether the students believed that a math superstar had to be a boy. Then the researchers turned to the teachers:To find out which teachers were anxious about math,the researchers asked the teachers how they felt at times when they came across math, such as when reading a sales receipt5. A teacher who got nervous looking at the numbers on a sales receipt, for example,was probably anxious about math.
Boys,on average,were unaffected by a teacher's anxiety. On average,girls with math-anxious teachers scored lower on the end-of-the-year math tests than other girls in the study did.Plus,on the test showing whether someone thought a math superstar had to be a boy,20 girls showed feeling that boys would be better at math -- and all of these girls had been taught by female teachers who had math anxiety.
"This is an interesting study,but the results need to be interpreted as preliminary and in need
of replication with a larger sample6," said David Geary,a psychologist at the University of Missouri7 in Columbia.
词汇：
snowball /'sn?ub?:l/雪球滚雪球式增长的事replication/repli'kei??n/ n ．重复，复现superstar/'sju:p?sta:/ n．超级明星
练习：
1. University of Chicago：芝加哥大学。位于美国伊利诺伊州芝加哥市，是世界一流的私立大学，创建于1891 年。
2. keep getting math-anxious female teachers：一直由对数学有焦虑感的女教师教授数学。此处getting是having的意思，math-anxious指的是上文中提到的对数学没有自信的心理状态。另见第三段最后一句对anxiety的解释。
3. snowball effect on their math achievement：在数学成就上的雪球效应。其含义是：在数学上越来越没有信心。
4. end up learning math anxiety from their teachers：最后从老师那里获得的是对数学的焦虑。End up doing something：最终会做某事
5. sales receipt：销售清单
6. in need of replication with a larger sample：需要用更大的调查样本进行重复验证。replication
在量化实证研究中的意思是“重复（实验）”。
7. the University of Missouri：密苏里大学。位于密苏里州，是美国一所公立研究型大学，创建于1839年。
练习：
1. What is the result of the research at the University of Chicago,according to the first paragraph?
A Girls comfortable with their own math skills are better than boys at math.
B Girls uncomfortable with their own math skills are not as good as boys at math.
C Female teachers' math skills have influence over girl students' math skills.
D Female teachers' confidence in their math skills is related to girl's math skills.
2. What is implied in the third paragraph?
A Math teachers,like math learners,do not like the subject due to its difficulty.
B A difficult subject like math may affect teachers' confidence in teaching the subject.
C Teachers are more anxious teaching math than their students learning math.
D Math is so difficult that no teachers like to teach it.
3. According to the experiment,those teachers were probably anxious about math when they felt
A nervous memorizing the numbers of a sales receipt.
B helpless saving the numbers of a sales receipt.
C uneasy reading the numbers of a sales receipt.
D hopeless filling in the numbers of a sales report.
4. The sixth paragraph tells us that the research findings
A prove a strong link between female teachers' math anxiety and their female students' mathachievements.
B show that male students are less likely to be affected by their math anxiety than femalestudents.
C provide strong evidence that math superstars are more likely to be males than females.
D discover a strong link between teachers' math anxiety and their students'
math achievements.
5. David Geary thinks that
A the study is interesting but it is based on unreliable research process.
B the research results need to be retested based on a larger sample.
C the research results need to be reinterpreted to be meaningful.
D the study is well based and produces significant results.
答案与题解：
1.D 该段告诉我们女教师的想法（what female teachers think）和女学生的学习（what female
students learn）之间有很大的关联度，也就是说，女教师如果对自己的数学技能没有自信，她的女学生很可能相信男孩子会在数学方面超过女孩子。
2.B 第三段的大意是，数学对任何人来说都可能有难度（The subject of math can be particularly difficult for everyone)，如同学生，教师也会觉得数学难学和难教，这就是研究者所言的焦虑。所以，可以推断，作者是要告诉我们，教师会因为数学这门学科的难度而对教授该课程不自信。其他选项都不是该段所要表达的内容。
3.C 第五段第三句“To find out which teachers were anxious about math, the researchers asked
the teachers how they felt at times when they came across math,such as when reading a sales
receipt”指出了答案。memorizing the numbers；意为“记住数字”；saving the numbers 意为“保存数字”；filling in the numbers意为“陆续编入数字”，而且文中没有提到a sales report；它们均不是答案。
4.A 短文的第六段是对前一段所述调查数据结果的讨论，即，男学生较少受对数学有焦虑感的教师影响，而那些数学成绩较低的女生都有对数学有焦虑感的教师（girls with math-anxious
teachers scored lower on the end-of-the-year math tests)，而且，所有认为男生数学肯定比女生强的女生，其数学教师都是有数学焦虑感的女教师（all of these girls had been taught by female teachers who had math anxiety. )。D所以不是正确的选择，因为只提到teachers 和students,而不是female teachers 和female students。5.B 根据David Geary的说法，实验结果还是初步的（preliminary)，需要更大的样本对其进行重复验证（in need of replication with a larger sample)。他没有认为该实验的过程不可靠，所以A不是正确选项；他认为实验样本不够大，所以D也不是正确选项。
+第四＋五篇Small But Wise
On December 14,NASA1 blasted a small but mighty telescope into space. The telescope is called WISE and is about as wide around as a trashcan. Don't let its small size fool you:WISE has a powerful digital camera, and it will be taking pictures of some the wildest objects2in the known universe,including asteroids,faint stars,blazing galaxies3 and giant clouds of dust where planets and stars are born.
"I'm very excited because we're going to be seeing parts of the universe that we haven't seen before,"said Ned Wright, a scientist who directs the WISE
project.
Since arriving in space,the WISE telescope has been circling the Earth,held by gravity in a polar orbit4(this means it crosses close to the north and south poles with each lap5).Its camera is pointed outward,away from the Earth,and WISE will snap a picture of a different part of the sky every 11 minutes. After six months it will have taken pictures across the entire sky.
The pictures taken by WISE won't be like everyday digital photographs,however. WISE stands for"Wide-field Infrared Survey Explorer."As its name suggests,the WISE camera takes pictures of features that give off infrared radiation6.
Radiation is energy that travels as a wave. Visible light, including the familiar spectrum of light7 that becomes visible in a rainbow,is an example of radiation. When an ordinary digital camera takes a picture of a tree,for example,it receives the waves of visible light that are reflected off the tree. When these waves enter the camera through the lens,they're processed by the camera,which then puts the image together.
Waves of infrared radiation are longer than waves of visible light, so ordinary digital cameras don't see them,and neither do the eyes of human beings. Although invisible to the eye,longer infrared radiation can be detected as warmth by the skin.
That's a key idea to why WISE will be able to see things other telescopes can't. Not everything in the universe shows up in visible light. Asteroids,for example,are giant rocks that float through space 一but they absorb most of the light that reaches them. They don't reflect light,so they're difficult to see. But they do give off infrared radiation, so an infrared telescope like WISE will be able to produce images of them. During its mission WISE will take pictures of hundreds of thousands of asteroids.
Brown dwarfs8 are another kind of deep-space object that will show up in WISE's pictures.These objects are"failed" stars 一which means they are not massive enough to jump start9 the same kind of reactions that power stars such as the sun. Instead,brown dwarfs simply shrink and cool down. They're so dim that they're almost impossible to see with visible light, but in the infrared spectrum they glow.
词汇：
trashcan / 'tr??,k?n/n．垃圾箱infrared/'infr?'red/ adj．红外线
asteroid/'?st?r?id/ n.小行星dwarf/dw?:f/ n. 矮星
注释：
1.NASA （美国国家航空航天局）是缩写词，全称是National Aeronautics and Space Administration
2. the wildest objects ：任何你能想象得到的天体。wild 有“未被人驯养的”“荒唐的”“离奇的”意思。
3. faint stars, blazing galaxies：指的是那些只能看到微弱的光和因燃烧而无法观察到的天体。
4. polar orbit：极地轨道。指轨道平面与赤道面夹角为90。的人造地球卫星轨道。人造卫
星运行时能到达南北极区上空，即卫星能飞经全球范围的上空。需要在全球范围内进行观测和应用的气象卫星、导航卫星、地球资源卫星等都采用这种轨道。
5. lap：一圈。原指竞赛场的一圈或游泳池的一个来回，如：She overtook the other runners on the last lap. 她最后一圈超过了其他参赛者。
6. infrared radiation：红外线辐射
7. spectrum of light：光谱，即，光辐射的波长分布区域。
8. Brown dwarfs：褐矮星。褐矮星非常暗淡，很难发现它们，要确定它们的大小就更加困难。9.jump start: 启动
练习：
1 .What is so special about WISE?
A It is small in size but carries a large camera.
B It is as small as a trashcan.
C Its digital camera can help astronomers to see the unknown space.
D Never before has a telescope carried a digital camera in space.
2. Which is NOT the synonym for the word "snap" in the third paragraph?
A make.
B shoot.
C take
D photograph.
3. The camera on WISE
A is no different from an ordinary camera.
B does not see infrared radiation while the ordinary camera does.
C catches the infrared radiation while the ordinary camera does not.
D reflects light that human eyes can see.
4. Which of the following is NOT correct about"asteroids" according to paragraph 7?
A Asteroids float through space giving off visible light.
B Asteroids do not reflect light that reaches them.
C It is difficult to take asteroids' pictures by ordinary cameras,
D The WIS
E telescope can take pictures of asteroids
5.What is implied in the last paragraph?
A Brown dwarfs give off visible light.
B Brown dwarfs give off infrared radiation.
C Brown dwarfs are power stars like the sun.
D Brown dwarfs are impossible to see with the WIS
E telescope.
答案与题解：
1. C 短文的第一和第二段提供了答案。WISE 的特殊之处就在于，虽然体积小，但它的数码相机能拍到任何天体，所以能够帮助天文学家观测到宇宙空间中（in the known universe ）的未知天文现象。其他选项都不是短文表达的意思。
2. A snap 是个多义词，可以解释为“拍照”，更为确切的意思是“拍快照”。这里shoot, take 和photograph 都是snap 的同义词。
3. C 短文第六段和第四段提供了答案。人类的肉眼和普通相机看到的光是visible lights ，看不见红外线辐射（infrared radiation) ，而WISE 的相机能够看到。
4. A 短文第七段第二句说并非所有的宇宙中的物体都会发出可见光，比如asteroids ，所以A是正确选项。其他选项的内容都可以在该段中找到。
5. B 最后一段的第一句说，褐矮星能出现在WISE 照片中，根据上文对WISE 望远镜的描述只有WISE 望远镜才能拍到红外线射线，所以B是正确选择。
+第四十六篇
Ants Have Big Impact on Environment as "Ecosystem Engineers"
Research by the University of Exeter1 has revealed that ants have a big impact on their local environment as a result of their activity as "ecosystem engineers" and predators. The study, published in the Journal of Animal Ecology, found that ants have two distinct effects on their local environment.
Firstly, through moving of soil by nest building2 activity and by collecting food they affect the level of nutrients in the soil. This can indirectly impact the local populations of many animal groups, from decomposers to species much higher up the food chain.
Secondly, they prey on a wide range of other animals, including larger prey which can be attacked by vast numbers of ant workers.
Dirk Sanders, an author of the study from the university's Centre for Ecology and Conservation, said:"Ants are very effective predators which thrive in huge numbers. They're also very territorial3 and very aggressive, defending their resources and territory against other predators. All of this means they have a strong influence on their surrounding area."
"In this research, we studied for the first time how big this impact is and the subtleties of it. What we found is that despite being predators, their presence can also lead to an increase in density and diversity of other animal groups4. They genuinely play a key role in the local environment, having a big influence on the grassland food web," Sanders said.
The study, carried out in Germany, studied the impact of the presence of different combinations and densities of black garden ants and common red ants, both species which can be found across Europe, including in the UK. It found that a low density of ants in an area increased the diversity and density of other animals in the local area, particularly the density of herbivores and decomposers. At higher densities ants had no or the opposite effect, showing that predation is counteracting the positive influence.
Dr Frank van Veen, another author on the study, said:"What we find is that the impact of ants on soil nutrient levels has a positive effect on animal groups at low levels, but as the number of ants increases, their predatory impacts have the bigger effect — thereby counteracting the positive influence via ecosystem engineering."
Ants are important components of ecosystems not only because they constitute a great part of the animal biomass5 but also because they act as ecosystem engineers. Ant biodiversity6 is incredibly high and these organisms are highly responsive to human impact, which obviously reduces its richness. However, it is not clear how such disturbance damages the maintenance of ant services to the ecosystem．Ants are important in below ground processes8 through the alteration of the physical and chemical environment and through their effects on plants, microorganisms, and other soil organisms.
词汇：
predator /' pred?t?/ n．食肉动物nutrient/' nju:tri?nt/ n ．营养物；adj．营养的
decomposer/,di:k?m'p?uz?/ n．腐生物分解体prey/prei/ v．捕食n．被捕食的动物subtlety/ 's?tlti/ n ，微妙，精妙herbivore/ 'h?:biv?: / n ．食草动物
注释：
1.the University of Exeter ：埃克斯特大学。1851 年建校，位于英国西南部重要商业中心埃克斯特市，是英国著名的传统大学之一。
2. nest building ：筑巢
3. territorial ：领地的。在此用来形容蚂蚁的本性，即具有很强的领地意识，并且会竭尽全力保卫自己的领地。
4. an increase in density and diversity of other animal groups ：其他动物群体在数量和品种上的增长。
5. biomass ：物质名词，由bio和mass 两部分组成，意为“生物量”“生物质”。
6. biodiversity ：物质名词，由bio和diversity 两部分组成，意为“生物多样性”。
7.the maintenance of ant services to the ecosystem ：蚂蚁对生态系统的维护作用。
8. below ground processes ：土壤下面的（工作）过程，即影响生态环境的过程。
练习：
1 .Why are ants compared to ecosystem engineers?
A Because they build their own nests.
B Because they collect food.
C Because their activity affects the environment.
D Because they are predators.
2. As predators, ants
A prey on small as well as large animals.
B collect nutritious food from the soil
C collect food as decomposers.
D prey on species much higher up the food chain.
3. Dir Sanders' study centered on how ants
A can manage to thrive in huge numbers.
B defend their resources and territory against other predators.
C attack those invading animals for survival.
D produce such a big impact on the environment.
4. What does paragraph 6 tell us?
A Ants bring about a negative influence to an area when their population is small.
B Ants bring about a positive influence to an area when their population is small.
C Ants' predation counteracts the positive influence they may have on an area.
D At higher density, ants produce a positive influence on an area.
5. What still remains unclear about ants, according to the last paragraph?
A What roles do ants play in the ecosystem in which they live?
B How do ants affect the animal diversity in a given ecosystem?
C How do human activities affect ants' influence on a given ecosystem?
D How do ants alter the physical and chemical environment?
答案与题解：
1. C 短文的第一段提供了答案。A不是正确答案，因为并不是因为蚂蚁会筑巢才被誉为生态系统工程师，而是因为它们筑巢和获取食物的方式改变了土壤的营养水平，为整个食物链
提供了很好的生态环境（见第二段）。
2.A答案能够从短文的第三段直接找到。该段告诉我们，蚂蚁的掠食范围很广，甚至包括比它们体积更大的动物（larger animals) 。prey 在这里的意思是“捕猎，捕食”，作为动词，后面跟介词on或upon。
3.D Dirk Sanders说：“In this research, we studied for the first time how big this impact is and the
subtleties of it.”（第五段）所以，D是正确选择。句中the subtleties of it 的意思是：蚂蚁对环境影响的精妙之处。
4.B 短文第六段第二句的大概意思是，蚂蚁数量小（a low density of ants）的话，能使其他动物的品种和数量增加（increased the diversity and density of other animals），从而给环境带来积极影响；第三句说，如果蚂蚁的数量大（At higher densities），就不可能产生同样的影响，或者是相反的影响，这表明，蚂蚁的掠食活动会抵销蚂蚁给环境带来的积极影响。第七段Dr Frank van Veen 表达了大体相同的内容。
5.C 最后一段的第二和第三句提供了答案。第二句告诉我们，蚂蚁极易受人类的影响（these organisms are highly responsive to human impact），第三句告诉我们，科学家还不清楚人类对蚂蚁这种干扰如何破坏蚂蚁对生态系统的维护作用（”it is not clear how such disturbance damages the maintenance of ant services to the ecosystem.”）。
完形填空
第三篇Germs on Banknotes
People in different countries use different types of 1 yuan in China, pesos in Mexico, pounds in the United Kingdom, dollars in the United States, Australia and New Zealand. They may use 2 currencies, but these countries, and probably all countries, still have one thing in common1: Germs on the banknotes.
Scientists have been studying the germs on money for well over2 100 years. At the turn of the 20th 3 , some researchers began to suspect that germs living on money could spread disease.
Most studies of germy money have looked at the germs on the currency 4 one country. In a new study, Frank Vriesekoop3 and other researchers compared the germ populations found on bills of different 5 .
Vriesekoop3 is a microbiologist at the University of Ballarat in Australia4. He led the study, which compared the germ populations found on money 6 from 10 nations. The scientists studied 1,280 banknotes in total; all came from places where people buy food, like supermarkets street vendors and cafes, 7 those businesses often rely on cash.
Overall, the Australian dollars hosted the fewest live bacteria ---- no more than 10 per square centimeter. Chinese yuan had the most ---- about 100 per square centimeter. Most of the germs on money probably would not cause harm.
What we call “paper” money usual ly isn't made from paper. The U. S. dollar, for example, is printed on fabric that is mostly 8 .Different countries may use different 9 to print their money. Some of the currencies studied by
Vriesekoop and his 10 such as the American dollar were made from cotton. Others were made from polymers.
The three 11 with the lowest numbers of bacteria were all printed on polymers. They included the Australian dollar, the New Zealand dollar and some Mexican pesos.
The other currencies were printed on fabric made12of cotton. Fewer germs lived on the polymer notes. This connection suggests that 13 have a harder time staying alive on polymer surfaces. Scientists need to do more studies to understand how germs live on money-----and whether or not we need to be concerned. Vnesekoop is now starting a study that will14 the amounts of time bacteria can stay alive on different types of bills.
Whatever Vriesekoop finds, the fact remains: Paper money harbors germs We should wash our 15 after touching it; after all5, you never know where your money 's been. Or what's living on it
词汇：
pesos/pi:s?vs/ n ．比索bacterium /k?k'ti?ri?m/ n ．细菌（单数）
germ/d??:m/ n．病菌bacteria /b?kti?ri?／细菌（复数）banknote/b??kn?vt/ n．纸币centimeter/senti,mi:t?。/ n．厘米microbiologist /,maikr?v,bai?l?d?ist/n.微生polymer/p?lim? / n. ［高分子」聚合物
物学家harbor/ha:b?/ v．怀有，藏有
vendor/vend?I/n．小贩
注释：
1.have one thing in common ：有一个共同点
2. well over ：大大超过
3. Frank Vriesekoop : Frank Vriesekoop 博士是巴拉瑞特大学的食品微生物学家，他率领一个全球研究小组对至少10个国家的纸币展开了分析。他的研究结果是：相对于比较落后贫穷的国家，富裕发达国家的纸币所携带的病菌较少。重要的是，世界各地纸币上的病菌数量都没有达到令人担心的程度。研究还发现纸币使用的年限和材质对纸币的污染程度也有影响。
4. University of Ballarat in Australia：澳大利亚巴拉瑞特大学。该校建立于1994年，位于维多利亚省的巴拉瑞特市。
5. after all：毕竟
练习:
1. A coins B money C cheques D loans
2. A different B clean C hard D foreign
3. A anniversary B year C decade D century
4. A along B with C within D outside
5. A countries B areas C regions D provinces
6. A delivered B borrowed C gathered D designed
7. A because B though C when D where
8. A plastic B rubber C cotton D paper
9. A languages B colors C substances D materials
10. A family B team C advisor D boss
11. A expenses B banks C statements D currencies
12. A nearly B mostly C likely D merely
13. A dirt B water C germs D oil
14. A compare B connect C conduct D command
15. A arms B hands C face D clothes
答案与题解:
1.B 冒号后面说的是各国使用钱币的名称:“yuan in China ，pesos in Mexico，pounds in the United Kingdom ，dollars in the United States，Aus往'alia and New Zealand” ，所以填人的词必定与这些钱币有关，而且应该是钱币的总括词。因此选money 最为恰当。coins 是“硬币”，cheques 是“支票” ，loans是“贷款”，它们都不会是答案。
2.A 本题的句子说的是:虽然各国使用的纸币各不相同，它们有一个共同点，那就是纸币上有病菌。四个选项中different 是答案。
3.D 选century 最合理。选anniversary (周年)，year (年)或decade都不合逻辑。
4.C 本段第二句提供了解答本题的线索。Frank Vriesekoop 的研究与以前的科学家的研究不同，他比较了各国钱币上的病菌数量，在他之前的科学家的研究范围局限于一个国家的纸币。四个选项中只有within 表达“在(一个国家)里”的意思。
5. A 经过第四题选词的思索过程，本题的形容词很自然会在different 之后用countries，指不同的国家。
6. C 上一句说Vriesekoop 比较不同国家纸币携带病菌的数量。本题的句子明确指出他对比的纸币涉及十个国家。四个选项中只有gathered (收集)与上下文的意思相匹配。
7. A 填词所在的句子与前面的主句存在因果关系。为什么要从食品店和食品摊收集纸币呢?因为这些地方常要用现金支付。本题答案是because。
8. C fabric 是“织物”，其制作原料不会是plastic(塑料)或rubber( 橡胶)。选paper 也不对，因为本句是说明纸币的制作原料通常不是纸。制作fabric 的原料是cotton( 棉花)，这是合
乎常理的。而且该段倒数第二句也提供了答案。所以答案是cotton。
9.D 本段说纸币的材料一般不是纸，通常是用棉花织物或高分子聚合物制作的。所以选择materials( 材料、原料)是正确的。
10. B 本题应当选team。与family (家庭成员)，advisor (顾问)或boss (老板)合作研究不是没有可能，但总有些离谱。与团队合作研究比较合理。
11. D 本段第二句提供了线索，它列出三种纸币，即the Australian dollar ，the New Zealand
dollar 和some Mexican pesos。选currencies 是最合理的。另外三个选项都不合适; expenses
是“支出”，banks 是“银行” ，statements 是“账单”。
12. B 本题只有选mostly，上下文意思才连贯。
13. C 前一句说用高分子聚合物制作的钱币含菌数量较少。本题的句子接着分析说，在高分子聚合物上存活较难。谁存活较难？当然是病菌。本题答案是germs0 dirt, water 和oil 是
非生物，不存在生存的问题。
14.A 四个选项填入句子后，句子成了：“…compare/connect/conduct/command the
amounts of time bacteria can stay alive on different types of bills”, 很明显；connect （连接）/conduct （实
施）/command（控制）amounts of time是无法成立的。只有compare(比较）不同纸币上病菌存活的时间才是Vriesekoop 要研究的新课题。
15. B人们通常是用手接触纸币的。所以接触纸币后要洗手。答案是hands。
第十篇 Chicken Soup for the Soul：Comfort Food Fights Loneliness
Mashed potatoes, macaroni and cheese, may be bad for your arteries． 1 according to a study in Psychologi cal Science, they’re good for your heart and 2 ．The study focuses on “comfort food” and how it makes people feel．"For me 3 ,food has always played a big role in my family,” says Jordan Troisi, a graduate student at the University of Buffalo, and lead author on the study．The study came out of the research program of his co—author Shira Gabriel．It has 4 non-human things that may affect human emotions．Some people reduce loneliness by bonding with their 5 TV show, building virtual relationships with a pop song singer or looking at pictures of loved ones．Troisi and Gabriel wondered if comfort food could have the same effect 6 making people
think of their nearest and dearest. In one experiment, in order to make 7 feel lonely, the researchers had them write for six minutes about a fight with someone close to them．Others were given an emotionally neutral writing assignment. Then, some people in each 8 wrote about the experience of eating a comfort food and others wrote about eating a new food．9 ,the researchers had participants 10 questions about their levels of loneliness．
Writing about a fight with a close person made people feel lonely．But people who were generally 11 in their relationships would feel less lonely by writing about a comfort food．"We have found that comfort foods are consistently associated with those close to us．"says Troisi．"Thinking about or consuming these foods later then serves as a reminder of those close others．"In 12 essays on comfort food, many people wrote about the 13 of eating food with family and friends. In another experiment, 14 chicken soup in the lab made people think more about relationships, but only if they considered chicken soup to be a comfort food．This was a question they had been asked long before the experiment, along with many other questions, so they wouldn’t remember it. Throughout everyone’s daily lives they experience stress, often associated with our 15 with others," Troisi says．"Comfort food Can be an easy remedy for loneliness．
词汇：
mashed /m??t/ adj．被捣成糊浆的macaroni/ macaroni/ n．通心粉
cheese / t?i:z / n．奶酪artery/ artery / n．动脉
assignment /?'sainm?nt / n．指定作业reminder / reminder/ n．起提醒作用的东西remedy /remedy/ n．治疗方法，药物virtual/'v?:t?u?l/ adj．虚拟的
注释：
https://www.doczj.com/doc/df11664387.html,fort food：爽心食品
2. graduate student：研究生
3. The University of Buffalo：布法罗大学，建校于1846 年，位于水牛城（Buffalo City) ，属于纽约州立大学，因此称为纽约州立大学水牛城分校。
4. lead author：首席作者
5. their nearest and dearest：他们最接近和最亲爱的人
6. levels of loneliness：孤独程度
7. only if: 只有（在……情况下）
8. Throughout everyone's daily lives：在每一个人的日常生活中。through 有“贯穿”的意思。
练习：
1．A but B if C though D while
2．A personality B movement C emotions D will
3．A privately B usefully C awfully D personally
4．A looked for B looked at C looked after D looked up
5．A favorite B trustful C boring D annoying
6．A with B on C by D at
7．A professors B participants C assistants D scientists
8．A group B class C section D part
9．A Previously B Formally C Initially D Finally
10．A remember B explain C rewrite D complete
11．A sad B secure C shy D angry
12．A your B our C his D their
13．A accident B harm C experience D model
14．A eating B exchanging C buying D keeping
l 5．A expressions B estimation C cooperation D connections
答案与题解：
l. A本句前半句说土豆泥、通心粉等对血管有害（bad) ，后半句说这些食物对心脏有利(good) 。很明显，前半句与后半句意思相反，所以要选转折连接词but加以连接。
2. C 根据常识判断，吃土豆泥不会对personality （性格） .movement （移动）或will （意志力）产生有利影响。随后的文章，多处提到吃爽心食品（favorite food ）有助于排解孤独感。所以选emotions 是正确的。
3.D本题的答案是personally0 For me personally（就我个人而言）与下文的意思很连贯。
privately （私下地）、usefully （有用地）或awfully （可怕地）与下文的意思搭不上，所以不会是答案。
4. B 本题的答案是looked at0。“looked at non-human things” 相当于“studied （研究）nonhuman things”，与上下文的意思很匹配。looked for（寻找）、looked after （照顾）和looked
up（查找）与下文的意思搭配不上。
5.A本句的意思是：人们为了排解孤独感，常常把自己和电视剧、流行歌曲歌手等等联系起来。选项中有四个形容词，应该选哪一个形容词去修饰TV shows 呢？应该选褒义的形容词：favorite （喜爱的）或trustful ( 可信任的）。但对电视剧来说谈不上信任的问题。favorite
最合理，是本题答案。
6. C 上一句说到，人们为了排解孤独感，常常把自己和喜爱的电视剧、流行歌曲歌手等等联
系起来。于是Troisi 和Gabriel 想，通过吃爽心食品让他们想起亲近的人，是不是也能产
生
同样的排解孤独感的效果呢？四个介词中只有by的词义是“通过”。其余三个介词在含义
上都不合适。
7.B 选professors（教授）、assistants（助手）或scientists（科学家）不合常理，科学家选实验对象时不会选他们。participants ( 参与者）是本题的答案。
8.A本题应该选group，指每一组的参与者。用class （班级）, section （部门）或part （部分）在意义上显然都不合适。
9. D 本段叙述试验的几个步骤。第一步要一部分受试者描写与亲人的争斗，其他受试者写情感上中性的话题。第二步（文中用then 加以连接）将上述两组受试者中的每一组再一分为二，一些人描写吃爽心食品的经历，另一些人描写吃新食品的经历。接下来应该是第三步了。从四个选项中寻找，只有Finally 最合适，原来第三步就是最后一步了。
1O.D 实验的最后一步是受试者被要求书面回答10个问题。complete 是答案。要求他们remember（记住）、delete （删除）或rewrite （重写）questions 都不合乎逻辑。
11. B 与亲近的人争吵会引发孤独感，但是，一般说来，人们的关系若是通常处于什么状态，通过写出他们吃爽心食物的经历会降低他们的孤独感呢？一定不会是sad、shy或angry ，答案应该是secure （稳定的）。
12.D 修饰essays 的所有格代词在人称与数上要与they 一致，所以their 是答案。
13. C “eating food with family and friends” 是一种experience （经历），不会是一个accident （事故）、harm （危害）或model （样式）。很明显，experience 是本题的答案。
14.A 文章中几次提到吃爽心食物有助于缓解孤独感。所以本题选eating 是很自然的。其他
三个选项，exchanging （交换）、buying （买）或keeping （保留）若填入句子中，与后面的宾语chicken soup in the lab 连用，意思上说不通。
15.D 本题的答案是connections。其他三个选项在意思上都不合适。
*第十一篇 Climate Change Poses Major Risks for Unprepared Cities
A new examination of urban policies has been 1 recently by Patricia Romero Lankao．She is a sociologist specializing in climate change
and 2 development．She warns that many of the world’s fast-growing urban areas，especially in developing countries．will likely suffer from the impacts of changing climate．Her work also concludes that most cities are failing to 3 emissions of carbon dioxide and other
greenhouse 4 ．These gases are known to affect the atmosphere．”Climate change is a deeply local issue and poses profound threats to the growing cities of the world,” says Romero Lankao. ”But too few cities are developing effective strategies to 5 their residents."
Cities are 6 sources of greenhouse gases．And urban populations are likely to be among those most severely affected by future climate change. Lankao’s findings highlight ways in which city-residents are particularly vulnerable, and suggest policy interventions that could offer immediate and longer-term 7 ．
The locations and dense construction patterns of cities often place their populations at greater risk for natural disasters. Potential 8 associated with climate include storm surges and prolonged hot weather. Storm surges can
flood coastal areas and prolonged hot weather can heat 9 paved cities more than surrounding areas．The impacts of such natural events can be more serious in an urban environment．For example，a prolonged heat wave can increase existing levels of air pollution，causing widespread health problems．Poorer neighborhoods that may 10 basic facilities such as drinking water or a dependable network of roads，are especially vulnerable to natural disasters．Many residents in poorer countries live in substandard
housing 11 access to reliable drinking water，roads and basic services. Local governments, 12 ,should take measures to protect their residents.”Unfortunately，they tend to move towards
rhetoric 13 meaningful responses, Romero Lankao writes, ” They don’t impose construction standards that could reduce heating and air conditioning needs. They don't emphasize mass transit and reduce 14 use. In fact, many local governments are taking a hands—off approac h.” Thus, she urges them to change their 15 policies and to take strong steps to prevent the harmful effects of climate change on cities.
词汇：
vulnerable / 'v?ln?r?bl / adj ．易受伤害的infrastructure / 'infr?,str?kt?? / n ．基础设施sociologist /,s?usi'?l?d?ist /n．社会学家substandard / ,s?b'st?nd?d / adj．标准以下的dioxide / dai'?ksaid / ．二氧化物floodplain /'fl?dplein / n ．泛滥平原
注释：
1. likely：很可能，或许。在本句中用作副词。
2. be likely to：很可能。likely 在本句中是形容词，用作表语。
3. findings：调查结果
4. storm surges：风暴潮
5. paved cities：铺上沥青路面的城市
6. spring up：涌现
7. rhetoric . . . responses：修辞反应。这个词的意思是：（地方政府）话讲得很漂亮，但内容空洞。8. a hands-off approach：一种不插手的政策
练习：
1．A carry along B carried away C carried out D carried back
2．A economic B industrial C rural D urban
3．A reduce B increase C study D measure
4．A crops B gases C fruits D Plant5
5．A educate B evaluate C protect D identify
6．A doubtful B possible C repeatable D major
7．A uses B chances C cures D benefits
8．A threats B interests C functions D differences
9．A locally B heavily C suddenly D mildly
l0．A provide B improve C lack D update
11．A without B with C in D on
12．A moreover B therefore C however D though
13．A other than B more than C less than D rather than
14．A train B automobile C bus D bike
15．A idle B smart C busy D secure
2015年职称英语理工类C级考试真题及答案第一部分：词汇选项 1. The weather last summer was awful. A. bad B. fair C. dry D. hot 参考答案：A 2. The law carries a penalty of up to three years in prison. A. message B. guilt C. obligation D. punishment 参考答案：D 3. My piano playing has improved significantly since I had a new teacher. A. definitely B. generally C. certainly D. greatly 参考答案：D 4. There is a need for radical changes in education.
A. revolutionary B. long-term C. short-term D. systematic 参考答案：A 5. It frustrates me that I‘m not able to put any of my ideas into practice. A. discourages B. shows C. surprises D. frightens 参考答案：A 6. I realized to my horror that I had forgotten the present. A. limit B. fear C. power D. fool 参考答案：B 7. He tried to assemble his thoughts. A. gather B. clear C. share D. spare
2015年全国职称英语考试理工类新增文章汇总 word版全网独一份 注：押题皇后王霞老师授意，新增文章仍然是考试热门文章，务必掌 握。 2015年职称英语教材理工类的变动比较小，一共只有5篇新增文章。2015年职称英语教材理工类新增的5篇文章，分布在阅读理解和补全短文：阅读理解理工C和理工B各新增一篇文章；补全短文理工A、B和C各新增一篇文章。完形填空理工类整体都没有新增文章。
理工C阅读理解新增文章 第九篇An Essential Scientific Process All life on the earth depends upon green plants. Using sunlight, the plants produce their own food. Then animals feed upon the plants. They take in the nutrients the plants have made and stored. But that’s not all. Sunlight also helps a plant produce oxygen. Some of the oxygen is used by the plant, but a plant usually produces more oxygen than it uses. The excess oxygen is necessary for animals and other organisms to live. The process of changing light into food and oxygen is called photosynthesis. Besides light energy from the sun, plants also use water and carbon dioxide. The water gets to the plant through its roots. The carbon dioxide enters the leaves through tiny openings called stomata. The carbon dioxide travels to chloroplasts, special cells in the bodies of green plants. This is where photosynthesis takes place. Chloroplasts contain the chlorophylls that give plants their green color. The chlorophylls are the molecules that trap light energy. The trapped light energy changes water and carbon dioxide to produce oxygen and a simple sugar called glucose. Carbon dioxide and oxygen move into and out of the stomata. Water vapor also moves out of the stomata. More than 90 percent of water a plant takes in through its roots escapes through the stomata. During the daytime, the stomata of most plants are open. This allows carbon dioxide to enter the leaves for photosynthesis. As night falls, carbon dioxide is not needed. The stomata of most plants close. Water loss stops. If photosynthesis ceased, there would be little food or other organic matter on the earth. Most organisms would disappear. The earth’s atmosphere would no longer contain oxygen. Photosynthesis is essential for life on our planet. 词汇： nutrient n.营养物 organism n.生物体，有机体 carbon dioxide n.二氧化碳 chloroplast n.叶绿体 molecule n.分子 vapor n.水蒸气 oxygen n.氧气 photosynthesis n.光合作用 chlorophyll n.叶绿素 glucose n.葡萄糖 cease v.停止 注释： 1．Then animals feed upon the plants.动物以植物为食。 练习： 1．In the first paragraph，the word “excess” means Aheavy. Bextra. Cgreen. Dliquid.
2013年职称英语考试理工类复习笔记 一、动词 从一定意义上讲，英语语法就是动词的语法，因此，掌握动词的特性、变化、句型是学习英语语法的重中之重。为了能更好地理解下面的讲课内容，首先要搞清动词的几个基本概念。 1) be 动词和do动词：be动词也称状态动词，用于说明状态或性质，主要用于构成英语的主系表句型;do动词也称为行为动词，分及物动词和不及物动词; 2) 及物动词和不及物动词：不及物动词后面不跟宾语, 也没有被动语态; 及物动词后面一定要有宾语; 3) 双宾语(直接宾语和间接宾语)结构和复合宾语(宾语+ 宾语补足语)结构：比较下面两个句子： My mother made me a cake.(母亲给我做了块蛋糕。) My father made me a doctor. (父亲把我培养成一名医生。) 第一句是双宾语结构，即My mother made a cake for me. 第二句是复合宾语结构，其句法功能为：My father made me (to) be a doctor (I am a doctor). 说明复合宾语结构中，宾语和宾语补足语之间有"主谓关系".
4) 情态动词：must, should, ought to, can, may, need, used to 等动词称为情态动词，有三大特征：A. 不受主语人称和数的影响，如：He may go now. / May I go now? 句中may的形式不变;B. 否定时在后面加not, 如：You ought not to have cheated her. C. 与另一动词连用，中间不用+ " to ", 如上举例。 请根据上述原则，(从语法角度)说出以下那种表达方式是对的： A. She needs to see a doctor. B. She doesn't need to see a doctor. C. Does she need to see a doctor? D. She needs not see a doctor. E. She needn't see a doctor. F. She doesn't need see a doctor. G. She needs see a doctor. 从语法角度看，A、B、C、E是对的。 5) 助动词：帮助实意动词构成某种结构的词，如: He did come yesterday; I saw him in the office.(他昨天确实来了;我在办公室见到他的。——表示强调) 五个基本句型 考研网校医药网校外语网校公务员网校网络课堂网上学习建筑网校
2014职称英语《理工B》真题及答案(代码22) 第一部分：词汇选项 下面共有15个句子，每个句子中均有1个词或短语划有底横线，请从每个句子后面所给的4个选项中选择1个与划线部分意义最相近的词或短语。 1. The majority of people around here are decent. A. real B. honest C. normal D. wealthy 答案：D 2. The curriculum was too narrow and too rigid. A. hidden B. traditional C. inflexible D. official 答案：C 3. The committee was asked to render a report on the housing situation. A. furnish B. copy C. publish D. summarize 答案：A 4. Afterwards there was just a feeling of let-down. A. excitement B. disappointment C. anger D. calm 答案：B 5. Several windows had been smashed. A. cleaned
C. fixed D. broken 答案：D 6. The worst agonies of the war were now beginning. A. pains B. parts C. aspects D. results 答案：A 7. London quickly became a flourishing port. A. major B. large C. successful D. commercial 答案：C 8. She felt that she had done her good deed for the day. A. homework B. justice C. model D. act 答案：D 9. He led a very moral life. A. human B. intelligent C. natural D. honourable 答案：D 好学教育2015年职称英语考试过关课程课件汇总：https://www.doczj.com/doc/df11664387.html,/RhFad1W 10. His stomach felt hollow with fear.
职称英语新增文章一 职称英语文章一 1. On the night of August 17, 1959, at about 20 minutes before midnight, the ground in the vicinity of Yellowstone National Park began shaking violently. At the time there was a rumbling sound, something like a huge truck would make. Both the heaving of the ground and the noise were very frightening but lasted not quite 45 seconds. 1、1959年8月17日的晚上，大约午夜前20分钟，黄石国家公园附近大地开始猛烈 摇动。同时，大地发出如同重型卡车发出的轰响。大地的升降和啸叫都令人非常害怕，但 是一切不超过45秒。 2. What was even more frightening was the sound of huge boulders which began rolling down the steep mountain. In one part of the upper reaches of the Madison River, a whole mountain began shifting, then came crashing down to fill the deep valley and dam the great river with millions of tons rock and trees. 2、更令人害怕的是巨石开始从陡峭的山上滚下来的声音。在麦迪生河上游的一条支 流处，一整座山开始移动，之后，它崩塌下来填满深深的山谷，上百万吨岩石和大树如坝 般阻挡住大河。 3. A dozen or more campers along the river were buried deep beneath the great landslide. Others were able to climb to safety, some of them badly hurt, but were trapped by the slide. Finally these people were saved, many of them by helicopter. 3、十几个，或许更多沿河的露营者被深埋在大滑坡下。幸存的野营者开始爬向较安 全的地方，其中一些人伤得很重，仍然不时陷入滑坡。最后这些人都获救了，其中多人得 救于直升飞机。 4. This earthquake near Yellowstone Park was just one of nearly a million that happen every year all over the world. And as bad as this quake was, many have been worse. Earthquake experts say that the Yellowstone quake of 1959 was about as bad as the one which hit San Francisco in 1906.But the San Francisco quake caused more damage because it struck in a place where there were so many people living. In San Francisco 700 person lost their lives. An earthquake in Japan in 1923 took 160,000 lives. In china in 1920 an earthquake took 200,000 lives. It is easy to understand why earthquake are so feared.
第五篇Tracking Down HIV In the summer of 1980, a patient had a strange purplish spot removed from below his ear. It was Kaposi’s sarcoma, a rare form of skin cancer. This patient also had lymph node swelling and exhaustion. In November 1980, a Los Angeles immunologist examined a young man who had diseases linked to immune system malfunctions. The doctor had a T-cell count taken of the patient’s blood. T-cells are a type of white blood cell that plays a key role1 in immune responses. The patient had no helper T-cells. By the end of 1980, 55 Americans were diagnosed with infections related to immune system breakdown; four had died. A year later the death toll was 74. Intravenous drug users had T-cell abnormalities. People who had received blood transfusions showed symptoms of immune system breakdown. By July 1982, 471 cases of the disease, now called Acquired Immune Deficiency Syndrome (AIDS), had been reported; 184 people had died. In April 1984, American virologist Dr. Robert Gallo isolated the pathogen, or disease producer, responsible for2 AIDS. He called it HTLV-III. In Paris, Dr. Luc Montagnier identified a virus he called LAV. An international panel of scientists determined that both men had found the same virus. It became known as Human Immunodeficiency virus (HIV). Blood banks began screening for HTV in 1985, but by then about 29,000 people had been infected through blood transfusions. Some 12,000 hemophiliacs had contracted HIV through blood-clotting products. By 1995, 477,900 Americans had AIDS; 295,500 had died.
2013年职称英语真题理工C（含答案解析） 第1部分：词汇选项（第1～15题，每题1分，共15分） 下面每个句子中均有1个词或短语划有横线，请为每处划线部分确定1个意义最为接近的选项。 1. I tried to detach myself from the reality of these terrible events. A. bring B. separate C. put D. set 2. The odd thing was that he didn’t recognize me. A. real B. whole C. same D. strange 3. That performance was pretty impressive. A. completely B. very C. Beautifully D. equally 4. I grabbed his arm and made him turn to look at me. A. throw B. seized C. broke D. stretched 5. The frame needs to be strong enough to support the engine. A. structure B. bottom C. Surface D. top 6. We found shelter from the rain under the trees. A. defense B. protection C standing D. room 7. “There is no other choice.” She sa id in a harsh voice. A. firm B. soft C. deep D. unkind 8. Traffic reaches its rush hour between 8:00 and 9:00 in the morning. A. border B. goal C. level D. peak 9. We have to change the public’s perception that money is everything. A. sight B. belief C. interest D. pressure 10. This was an unexceptionally brutal attack.
职称英语考试理工类B级考试试题(1)2 第2部分：阅读判断（第16-22题，每题1分，共7分） 阅读下面这篇短文。短文后列出了7个句子。请根据短文的内容对每个句子做出判断。如果该句提供的是正确信息。请在答题卡上把A涂黑：如果该句提供的是错误信息。请在答题卡上把B涂黑：如果该句的信息文章中没有提及。请在答题卡上把C涂黑。 The Smog（烟雾） For over a month. Indonesia was in crisis. Forest fires raged out of control as the country Suffered its worst drought for 50 years . Smoke form the fires mixed with sunlight and hot dry air to form a cloud of smog This pollution quickly spread and within days it was hanging over neighbouring countries including Malaysia.Singapore and Thailand When the smoke combined with pollution from factories and cars.it soon became poisonous （有毒的）。Dangerous amounts of CO became trapped under the smog and pollution levels rose. People wheezed f喘息）and coughed as they left the house and their eyes watered immediately. The smog made it impossible to see across streets and whole cities disappeared as grey soot （烟灰）covered everything.In some areas，water was hosed（用胶管浇）from high—rise city buildings to tIY and break up the smog.
2020年职称英语新增文章：教材理工类第六篇 第六篇 The Apgar Test The baby was bom at 3：36 p. m. At 3：37，she scored 4 out of 10 on her first test. At 3：41，she scored 8 out of 10. The doctor was glad. Another baby, bom at 8：24 p. m.，scored 3 out of 10 on his first test He scored 4 out of 10 on his second test. He took another test at 8：34 and scored 5. 1 He called for help1. These newborn babies took a test called the Apgar test. This test helps doctors diagnose problems. 2 Most babies take two tests. The first is at 1 minute after birth, and the second is at 5 minutes after birth. If a baby’s score at 5 minutes is less than 6，the baby takes another test at 10 minutes after birth. The Apgar t est is not an intelligence test. It’s a test that shows a baby’s health right after it is bom. The Apgar test measures things such as a baby’s color, heart rate, and breathing. The test has five parts, and the score for each part can be 0，1，or 2. 3
2013年度全国职称英语等级考试理工类（B级）试题及参考答案 职称英语考试历年真题汇总>>https://www.doczj.com/doc/df11664387.html,/zZnTL （复制链接，点击“打开链接”即可访问） 更多精品备考资料在职称英语考试交流群：151033695 第1部分：词汇选项(第1～15题，每题1分，共15分) 下面每个句子中均有1个词或短语划有横线，请为每处划线部分确定1个意义最为接近的选项。 1. Come out, or I’ll bust the door down. A shut B break C set D beat 2. The police will need to keep a wary eye on this area of town. A naked B blind C cautious D private 3. The rules are too rigid to allow for human error. A general B inflexible C complex D direct 4. It seemed incredible that he had been there a week already. A right B unbelievable C obvious D unclear 5. These animals migrate south annually in search of food. A explore B inhabit C prefer D travel 6. Rumors began to circulate about his financial problems. A send B hear C confirm D spread 7. She came across three children sleeping under a bridge. A found by chance B passed by C took a notice of D woke up 8. I have little information as regards her fitness for the post. A about B at C with D from 9. As a politician, he knows how to manipulate public opinion. A express B divide C influence D voice 10. He was tempted by the high salary offered by the company. A taught B kept C changed D attracted 11. He paused, waiting for her to digest the information. A withhold B exchange C understand D contact 12. Make sure the table is securely anchored. A repaired B cleared C booked D fixed 13. She gets aggressive when she is drunk.
2015职称英语理工类A真题及答案(完整版) 第1部分：词汇选项(第1～15题，每题1分，共15分) 下面每个句子中均有1个词或短语划有底横线，请为每处划线部分确定1个意义最为接近的选项。 1. I will not tolerate that sort of behavior in my class. A. control B. observe C. regulate D. accept 2. She showed a natural aptitude for the work. A. sense B. talent C. flavor D. taste 3. Most people find rejection hard to accept. A. excuse B. client C. refusal D. destiny 4. The organization was bold enough to face the press. A. pleased B. powerful C. brave D. sensible 5. They were locked in mortal combat. A. deadly B. open C. actual D. active 6. We were attracted by the lure of quick money. A. amount B. supply C. tempt D. sum 7. The procedures were perceived as complex and less transparent. A. clear B. necessary C. special D. correct 8. The Stock Exchange is in turmoil following a huge wave of selling. A. Service B. danger C. disorder D. threat 9. He believes that Europe must change or it will perish. A. survive B. last C. die D. move
2010年职称英语等级考试用书（理工类） 新增文章参考译文 第四部分阅读理解 第三篇 公民科学家 理解大自然对气候变化有怎样的反应需要监视世界各个角落的关键生命周期事件——花开、叶子的出现、第一只青蛙叫出春天的到来。但是生态学家不可能去到世界的各个角落，所以他们向非科学家求助，这些非科学家有时也被称作公民科学家。 气象科学家不可能足迹遍及天下。因为在世界上有如此多的地方，没有足够的科学家来观察它们。所以他们请求你来帮助观察全世界气候变化的迹象。公民科学家运动鼓励普通人根据自己的兴趣来观察某一个特定的方面——鸟儿、树木、花开等等——并把他们的观察结果发送到一个巨大的数据库来供专业科学家研究。这有助于数量有限的科学家得到如果只靠他们自己根本收集不到的巨大数据。就像公民记者帮助报道传统新闻报道方式所忽略的小型社区的相关信息一样，公民科学家也对他们所居住的环境很熟悉。所需要的就是每天或每周留出几分钟来搜集数据并发送过来。 一群科学家和教育家在去年发起了一个叫做纽约国家物候学的组织。“物候学”就是科学家们所说的在自然中研究每个事件的时间。 其中一个小组的首要尝试就是依靠科学家和非科学家来收集关于每年植物开花和长叶子的数据。这一项目叫做花季追踪计划，它收集遍布美国的各种各样的植物生长周期的数据。参与这一项目的人们——这一计划对所有人开放——把他们的观察记录在花季追踪计划网站上。 “人们不需要是植物学家——他们仅仅需要环视四周看看周围有什么。”Jennifer
Schwartz说，她是这项计划的教育顾问。“通过收集数据，我们就能够估算出气候变化对植物和生物群落会有怎样的影响。” 第六篇 北极冰山融化 地球的北极和南极都以冰冷闻名。但是，去年北冰洋上的冰含量跌到了历史最低点。 正常情况下，每年冬天在北极附近的北冰洋开始结冰，并在夏天缩减。但是多年以来，在夏天结束时冰的含量在下降。 自从1979年以来，每l0年在夏季末的冰覆盖量都下降11.4％。在1981到2000年之间，北极冰的厚度下降了22％——变成了l.13米这么薄。 去年，北极的冰雪覆盖达到了最薄的程度。在2007年夏天快结束的时候，冰层已经缩减到只覆盖四百二十万平方公里。这比那年的平均覆盖面积少38％，比两年前最低记录少23％。这个持续的趋势令科学家们万分担忧。 冰雪融化有许多原因，话雅图华盛顿大学的海洋学家张金伦说，有许多原因导致了冰层融化。极不寻常的强风去年刮过大西洋，风把大西洋中部的冰散去，留下大面积的薄冰和没有冰覆盖的海面。 科学家们还怀疑在大西洋上空有比过去越来越少的云层。晴朗的天空使更多的阳光照射大西洋。升高的温度使水和空气都变温暖。在去年大西洋的部分海域，表面温度比平均温度高3.5摄氏度，比历史最高点还高l.5摄氏度。 由于空气和水都变暖，冰从上面和下面都开始融化。在波弗特海的部分海域，阿拉斯加的北部和加拿大的西部，夏天开始时冰的厚度为3.3米，但到了季末仅仅为50厘米。 新的测量表明，情况远远比科学家们仅仅从表面上看到的要严重得多，新罕布什尔州汉
Real World Robots When you think of a robot, do you envision a shiny, metallic devi ce having the same general shape as a human being, performin g humanlike functions, and responding to your questions i n a monotone voice accentuated by high-pitched tones and beeps? This is the way many of us imagine a robot, bu t in the real world, a robot is not humanoid at all. Instead a r obot often is a voiceless, box-shaped machine that efficien tly carries out repetitive or dangerous functions usually performed by huma ns. T o d a y’ s robot is more than an automatic machine that performs one t ask again and again. A modern robot is programmed with varyin g degrees of artificial intelligence— that is, a robot contains a computer program that tell s it how to perform tasks associated with human intelligence, such as reasoning,drawing conclusions, and learning from past experience. A robot does not posses s a human shape for the simple reason that a two-legged robot has great difficulty remaining balanced. A robot does, however, move from place to place on wheels and axles that roll and rotate. A
学派网2013年职称英语真题综合(B) 第1部分：词汇选项（第1-15题，每题1分，共15分） 下面每个句子中均有1个词或者短语划有底横线，请为每处划线部分确定1个意义最为接近的选项。 1. Come out, or I’ll bust the door down. A. shut B. set C. break D. beat 2. The police will need to keep a wary eye on this area of town. A. naked B. cautious C. blind D. private 3. The rules are too rigid to allow for humane error. A. general B. complex C. direct D. inflexible 4. It seemed incredible that he had been there a week already. A. right B. unbelievable C. obvious D. unclear 5. These animals migrate south annually in search of food. A. explore B. travel C. inhabit D. prefer 6. Rumors began to circulate about his financial problems. A. spread B. send C. hear D. confirm 7. She came across three children sleeping under a bridge. A. passed by B. took a notice of C. woke up D. found by chance 8. I have little information as regards her fitness for the post. A. at B. with C. about D. from 9. As a politician, he knows how to manipulate public opinion. A. influence B. express C. divide D. voice 10. He was tempted by the high salary offered by the company.
2019年职称英语考试理工类：补全短文 One of the most important developments in newspaper organization during the first part of the twentieth century ______（1）_______, which are known as wire services. Wire-service companies employed reporters, who covered stories all over the world. Their news reports were sent to papers throughout the country by telegraph. The papers paid an annual fee for this service. Wire services continue _______（2）________. Today the major wire services are the Associated Press （AP） and United Press International （UPI）。 You will frequently find AP or UPI at the beginning of a news story. Newspaper chains and mergers began to appear in the early 1900s. A chain consists of two or more newspapers _______（3）______. A merger involves combining two or more papers into one. During the nineteenth century many cities had more than one competitive independent paper. Today in most cities there are only one or two newspapers, and _______（4）______. Often newspapers in several cities belong to one chain. Papers have combined ________（5）_______. Chains and mergers have cut down production costs and brought the advantages of big-business methods to the newspaper industry. A. to play an important role in newspaper operations B. was the growth of telegraph services C. and they usually enjoy great prestige D. they are usually operated by a single owner E. in order to survive under the pressure of rising costs