uses computer vision systems that see in the infrared(红外线) spectrum to distinguish between different touches on different parts of the surface, allowing students to access and use tools on the screen, move objects and visual aids around on their desktops, and otherwise physically interact with the numbers and information on their screens. By using these screens collaboratively, the researchers say, the students are to some extent teaching themselves as those with a stronger grasp on difficult concepts pull other students forward along with them.
36 Which of the following is NOT true of the public education system? A It does not catch up with the development of technology.
B Teachers pay more attention to fast learners than slow learners. C Some similar complaints about it are heard in different countries. D Many students are not good at learning mathematics. 37 What has been found after the new tech is employed?
A Teachers are able to give individualized attention to students in need. B Students become less active in learning mathematics.
C Students show preference to the conventional paper-and-pencil method. D The gap between slow learners and fast learners gets more noticeable. 38 What is the benefit students get from the new tech?
A It makes them more fluent in public speech. www.zcenglish.com.cn 6 B It offers them more flexibility in choosing courses. C It is effective in helping them solve physical problems. D It enables them to develop critical thinking ability.
39 What happens when students are using the desktop of the new tech? A Every student has an individual table top.
B Students use different tools to interact with each other. C The multi-touch function stimulates students.
D The software installed automatically identifies different users.
40 How does the new tech work to improve students’ mathematical learning? A It helps fast learners to learn faster.
B It makes teachers’ instruction unnecessary. C It enables them to work together.
D It allows the whole class to learn at the same time. 参考答案: 36.B 37.A 38.D 39.C 40.C 第三篇
On the Trial of the Honey Badger
On a recent field trip to the Kalahari Desert, a team of researchers learn a lot more about honey badgers. The team employed a local wildlife expert Kitso Khama to help them locate and follow the badgers across the desert. Their main aim was to study the badgers’ movements and behavior as discreetly(谨慎地) as possible without frightening them away or causing them to change their natural behavior. They also planned to trap a few and study them close up before releasing them in view of the animal’s reputation, this was something that even Khama was reluctant to do.
“The problem with honey badgers is they are naturally curious animals, especially when they see something new,” he says. “That, combined with their unpredictable nature, can be a dangerous mixture. If they sense you have food, for example, they won’t be shy about coming right up to you for something to eat. They’re actually quite sociable creatures around humans, but as soon as they
feel they might be in danger, they can become extremely vicious(凶恶的). Fortunately this is rare, but it does happen.”
The research confirmed many things that were already known. As expected, honey badgers ate any creatures they could catch and kill. Even poisonous snakes, feared and avoided by most other animals, were not safe from them. The researchers were surprised, however, by the animal’s fondness for local melons, probably because of their high water content. Preciously researchers thought that the animal got all of its liquid requirements from its prey(猎物). The team also learnt that, contrary to previous research findings, the badgers occasionally formed loose family groups. They were also able to confirm certain results from previous research, including the fact that female badgers never socialized with each other.
Following some of the male badgers was a challenge, since they can cover large distances in a short space of time. Some hunting territories cover more than 500 square kilometers. Although they seem happy to share these territories with other males, there are occasional fights over an important food source, and male badgers can be as aggressive towards each other as they are towards other species. As the badgers became accustomed to the presence of people, it gave the team the to get up close to them without being the subject of the animal’s curiosity—or sudden aggression. The badgers’ eating patterns, which had been disrupted, to normal. It also allowed the team to observe more closely some of the other creatures that form working associations with the honey badger, as these seemed to badgers’ relaxed attitude when near humans.
41 Why did the wild life experts visit the Kalahari Desert? A. To find where honey badgers live.
B. To catch some honey badgers for food. 7 C. To observe how honey badgers behave.
D. To find out why honey badgers have a bad reputation. 42 What does Kitso Khama say about honey badgers? A. They are always looking for food. B. They do not enjoy human company.
C. They show interest in things they are not familiar with. D. It is common for them to attack people.
43 What did the team find out about honey badgers? A. There were some creatures they did not eat. B. They were afraid of poisonous creatures.
C. Female badgers did not mix with male badgers.
D. They may get some of the water they needed from fruit. 44 Which of the following is a typical feature of male badgers? A. They don’t run very quickly.
B. They defend their territory from other badgers. C. They hunt over a very large area.
D. They are more aggressive than females.
45 What happened when honey badgers got used to humans around them? A. They became less aggressive towards other creatures. B. They lost interest in people. C. They started eating more.
D. Other animals started working with them.
参考答案：41.C、42.C、43.D、44.C、45.B
第5部分：补全短文（第46～50题，每题2分，共10分）
下面的短文有5处空白，短文后有6个句子，其中5个取自短文，请根据短文内容将其分别放回原有位置，以恢复文章原貌。
Toads are Arthritis and in Pain
Arthritis(关节炎) is an illness that can cause pain and swelling in your bones. Toads (蟾蜍), a big problem in the north of Australia, are suffering from painful arthritis in their legs and backbone, a new study has shown. The toads that jump the fastest are more likely to be larger and to have longer legs._______(46)
The large yellow toads, native to South and Central America, were introduced into the north-eastern Australian state of Queensland in 1935 in an attempt to stop beetles and other insects from destroying sugarcane crops. Now up to 200 million of the poisonous toads exist in the country, and they are rapidly spreading through the state of Northern Territory at a rate of up to 60 km a year. The toads can now be found across more than one million square kilometres._______(47) A Venezuelan poison virus was tried in the 1990s but had to be abandoned after it was found to also kill native frog species.
The toads have severely affected ecosystems in Australia. Animals, and sometimes pets, that eat the toads die immediately from their poison, and the toads themselves eat anything they can fit inside their mouth._______(48)
A co-author of the new study, Rick Shine, a professor at the University of Sydney, says that little attention has been given to the problems that toads face. Rick and his colleagues studied nearly 500 toads from Queensland and the Northern Territory and found that those in the latter state were very different. They were active, sprinting down roads and breeding quickly.
According to the results of the study, the fastest toads travel nearly one kilometre a night._______(49) But speed and strength come at a price — arthritis of the legs and backbone due to constant pressure placed on them.
In laboratory tests, the researchers found that after about 15 minutes of hopping, arthritic toads would travel less www.zcenglish.com.cn 8 distance with each hop (跳跃)._______(50) These toads are so programmed to move, apparently, that even when in pain the toads travelled as fast and as far as the healthy ones, continuing their constant march across the landscape. A. The task now facing the country is how to remove the toads.
B. Toads are not built to be road runners—— they are built to sit around ponds and wet areas. C. But this advantage also has a big drawback — up to 10% of the biggest toads suffer from arthritis.
D. Toads with longer legs move faster and travel longer distances while the others are being left behind.
E. But arthritis didn’t slow down toads outside the laboratory the research found. F. Furthermore, they soon take over the natural habitats of Australia’s native species. 参考答案: 46.C 47.F 48.A 49.D 50.E
第6部分：完形填空（第51~65题，每题1分，共15分）
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Better Solar Energy Systems: More Heat, More Light
Solar photovoltaic thermal energy systems, or PVTs, generate both heat and electricity, but
____(51)____ now they haven’t been very good at the heat-generating part compared to a stand-alone solar thermal collector. That’s because they operate at low temperatures to cool crystalline silicon solar cells, ____(52)____ lets the silicon generate more electricity but isn’t a very efficient way to gather heat.
That’s a problem of economics. Good solar hot-water systems can harvest much more energy than a solar-electric system at a substantially lower ____(53)____.And it’s also a space problem: photovoltaic cells can ____(54)____ up all the space on the roof, leaving little room for thermal applications.
In a pair of studies, Joshua Pearce, an associate professor of materials science and engineering, has devised a ____(55)____ in the form of a better PVT made with a different kind of silicon. His research collaborators are Kunal Girotra from Thin Silicon in California and Michael Pathak and Stephen Harrison from Queen’s University, Canada.
Most solar panels are made with crystalline silicon, but you can also make solar cells out of amorphous silicon, commonly known ____(56)____ thin-film silicon. They don’t create as much electricity, but they are lighter, flexible, and cheaper. And, because they ____(57)____ much less silicon, they have a greener footprint. ____(58)____, thin-film silicon solar cells are vulnerable to some bad-news physics in the form of the Staebler-Wronski effect.
“That means that their efficiency drops when you ____(59)____ them to light — pretty much the worst possible effect for a solar cell,” Pearce explains, which is one of the ____(60)____ thin- film solar panels make up only a small fraction of the market.
However, Pearce and his team found a ____(61)____ to engineer around the Staebler-Wronski effect by incorporating thin-film silicon in a new ____(62)____ of PVT. You don’t have to cool down thin-film silicon to make it work. In fact, Pearce’s group discovered that by heating it to solar-thermal operating temperatures, near the boiling ____(63)____ of water, they could make thicker cells that largely ____(64)____ the Staebler-Wronski effect. When they applied the thin-film silicon directly to a solar thermal energy collector, they also found that by baking the cell once a day, they ____(65)____ the solar cell’s electrical efficiency by over 10 percent. 51. A. until B. unless C. when D. if 52. A. what B. which C. that D. who 53. A. reward B. bill C. pay D. cost 54. A. move B. set C. live D. take
55. A. decision B. suggestion C. solution D. qualification 56. A. for B. by C. with D. as
57. A. retrieve B. merge C. require D. exchange 9
58. A. Unfortunately B. Certainly C. Luckily D. Immediately 59. A. cover B. relate C. face D. expose
60. A. restrictions B. advances C. reasons D. strengths 61. A. part B. result C. subject D. way 62. A. type B. size C. shape D. brand 63. A. area B. point C. place D. extent
64. A. promoted B. improved C. overcame D. asserted 65. A. boosted B. defined C. wasted D. lower 参考答案: ABDDC DCADC DABCA
2013年全国职称英语等级考试A级真题和答案（理工类）
