下载亿题库APP
联系电话:400-660-1360
请谨慎保管和记忆你的密码,以免泄露和丢失
请谨慎保管和记忆你的密码,以免泄露和丢失
2019年职称英语考试《理工类》考试共65题,分为单选题和多选题和判断题和计算题和简答题和不定项。小编每天为您准备了5道每日一练题目(附答案解析),一步一步陪你备考,每一次练习的成功,都会淋漓尽致的反映在分数上。一起加油前行。
1、The children trembled with fear when they saw the policeman. 【单选题】
A.wept
B.cried
C.ran
D.shook
正确答案:D
答案解析:tremble:颤抖,和shake同义;weep:哭泣;cry:哭、叫;run:跑。
2、Dung to Death
Fields across Europe are contaminated with dangerous levels of the antibiotics given to farm animals. The drugs, which are in manure sprayed onto fields as fertilizers, could be getting into our food and water, helping to create a new generation of antibiotic-resistant "superbugs".
The warning comes from a researcher in Switzerland who looked at levels of the drugs in farm slurry His findings are particularly shocking because Switzerland is one of the few countries to have banned antibiotics as growth promoters in animal dead.
Some 20,000 tons of antibiotics are used in the European Union and the US each year. More than half are given to farm-animals to prevent disease and promote growth. But recent research has found a direct link between the increased use of these farmyard drugs and the appearance of antibiotic-resistant bugs that infect people.
Most researchers assumed that humans become infected with the resistant strains by eating contaminated meat. But far more of the drugs end. up in manure than in meat products, says Stephen Mueller of the Swiss Federal Institute for Environmental Science and Technology in Dubendorf. And manure contains especiaily high levels of bugs that are resistant to antibiotics he says.
With millions of tons of animals manure spread onto fields of crops such as wheat and barley each year, this pathway seems an equally likely route for spreading resistance, he said. The drugs contaminate the crops, which are then eaten. ______
Mueller is particularly concerned about a group of antibiotics called sulphonamides. They do not easily degrade or dissolve in water. His analysis found that Swiss farm manure contains a high percentage of sulphonamides; each hectare of field could be contaminated with up to 1 kilogram of the drugs. This concentration is high enough to trigger the development of resistance among bacteria. But vets are not treating the issue seriously.
There is growing concern at the extent to which drugs, including antibiotics, are polluting the environment. Many drugs given to humans are also excreted unchanged and are not broken down by conventional sewage treatment.
【单选题】
A.They do not easily degrade or dissolve in water.
B.And manure contains especiaily high levels of bugs that are resistant to antibiotics he says.
C.Animal antibiotics is still an area to which insufficient attention has been paid
D.But recent research has found a direct link between the increased use of these farmyard drugs and the appearance of antibiotic-resistant bugs that infect people.
E.His findings are particularly shocking because Switzerland is one of the few countries to have banned antibiotics as growth promoters in animal dead.
F.They could also be leaching into tap water pumped from rocks beneath fertilized fields.
正确答案:F
答案解析:选项F中的also 一词说明前面应讲到过一个类似的内容。这句讲的是这些药物可能从施过肥料的农田下面的岩石沥滤到自来水里去;前面一句讲的是受到这些药物污染的谷物被人食用,这两句讲的都是这些药物如何对人类造成威胁。
3、Obviously these people can be relied on in a crisis.【单选题】
A.lived on
B.depended on
C.believed in
D.joined in
正确答案:B
答案解析:显然这些人在危机关头值得依靠。本题有一定难度,考查的是基本意义,C项的干扰最大,有些考生因受汉语思维影响而选了C,rely on和depend on都有“依靠”意思,是近义词,常用过去式,C项believe in指“相信”,和答案意义有差异,最佳答案是B。
4、Weaving with Light
In the Sierra Madre mountain range of west central Mexico, the native Huichol people live much the way their ancestors did-without electricity. That's because it's too expensive to string power lines to the remote mountain areas where they live. To help support themselves, the Huichol create beautiful artwork. They sell their art in cities hundreds of miles away from their villages. And without electricity, at home or on the road, they can only work during daylight hours. When it gets dark, they must stop whatever they're doing.
Now, a team of scientists, designers and architects is using new technologies to provide the Huichol with light after the sun sets. The scientists technique involves weaving tiny electronic crystals into fabrics that can be made into clothes, bags, or other items.
By collecting the sun's energy during the day, these lightweight fabrics provide bright white light at night. Their inventors have named the fabrics "Portable Lights," Portable Lights have the potential to transform the lives of people without electricity around the world, says project leader Sheila Kennedy.
"Our invention," Kennedy says, "came from seeing how we could transform technology we saw every day in the United States and move it into new markets for people who didn't have a lot of money."
At the core of Portable Light technology are devices called high - brightness light - emitting diodes, or HB LEDs. These tiny lights appear in digital clocks, televisions and streetlights.
LEDs are completely different from the light bulbs. Most of those glass bulbs belong to a type called incandescent lights. Inside, electricity heats a metal coil to about 2,200 degrees Celsius. At that temperature, bulbs give off light we can see.
Ninety percent of energy produced by incandescent lights, however, is heat and invisible. With all that wasted energy, bulbs burn out quickly. They are also easily broken.
LEDs, on the other hand, are like tiny pieces of rock made up of molecules that are arranged in a crystal structure. When an electric current passes through an LED, the crystal structure produces light. Unlike incandescent bulbs, they can produce light of various colors. Within an LED, the type of molecules and their particular arrangement determines what color is produced.
The central part of the Portable Lights technology is ______.【单选题】
A.glass bulbs
B.digital clocks
C.incandescent lights
D.HB LEDs
正确答案:D
答案解析:本题有一定难度,关键在吃透句意,答案依据比较明显,带着题干信息词回文章定位,答案依据主要在文章第五段第一句:At the core of Portable Light technology are devices called high - brightness light - emitting diodes or HB LEDs。其中core和题干里的central part是同义词,回来看选项,D项和原文句意相符,答案是D。
5、Meet Your Memory
1. Memory is something that cannot be seen, touched or weighed. It is thought to be abstract. It is a set of skills rather than an object. Neither is there a single standard for judging a good or poor memory. There are a number of different ways in which a person may have a good memory.
2. Memory is generally viewed as consisting of three stages: (1) acquisition refers to learning the material; (2) storage refers to keeping the material in the brain until it is needed; (3) retrieval (提取) refers to getting the material back out when it is needed:
3. Memory consists of at least two different processes: short - term memory and long - term memory. Short - term memory has a limited capacity and a rapid forgetting rate. Its capacity can be increased by chunking (组成大块), or grouping separate bits of information into larger chunks. Long - term memory has an almost unlimited capacity.
4. One measure of memory is recall, which requires you to produce information by searching the memory for it. In aided recall, you are given cues (提示) to help you produce the information. In free - recall learning you recall the material in any order. In serial learning you recall it in the order it was presented and in paired - associate learning you learn pairs of words so that when the first word is given you can recall the second word. A second measure of memory is recognition, in which you do not have to produce the information from memory, but must be able to identify it when it is presented to you. In a third measure of memory, relearning, the difference between how long it took to learn the material the first time and how long it takes to learn it again indicates how much you remember. Relearning is generally a more sensitive measure of memory than is recognition because relearning shows retention (保持) while recognition does not. Recognition is generally a more sensitive measure than recall.
Long - term memory has an almost unlimited capacity and a ______.
【单选题】
A.short - term memory
B.relearning
C.needed
D.coded
E.recognition
F.slow forgetting rate
正确答案:F
答案解析:本题有一定难度,需要认真第三段,吃透句意。这一段谈到短期记忆和长期记忆是两个不同的过程,短期记忆遗忘率高,那么换句话说长期记忆遗忘率低,回来看选项,F项slow forgetting rate符合原文句意,是答案。
为什么商务英语考试中有的考生不允许入场?:为什么商务英语考试中有的考生不允许入场?考点将拒绝考生入场,并不予改期考试或退还考费:1. 抵达考点与网上报名所选考点不一致;2. 未携带准考证或规定的有效身份证件;3. 所携身份证件的有效性未通过核验;4. 身份证件类型和号码与所持准考证显示信息不符;5. 身份证件相片与本人明显不符;6. 未按准考证规定时间到达考场;7. 不服从监考人员的管理,扰乱考场秩序。
需要具备怎样的基础才能备考商务英语BEC中级?:商务英语中级需要有大学英语四级到六级的水平。
学习商务英语BEC初级需要具备怎样的基础?:学习商务英语BEC初级需要具备怎样的基础?根据BEC考试大纲的要求,学习BEC初级需要有公共英语四级的水平。
2022-04-08
2022-04-08
2022-04-08
2022-04-08
2022-04-08
微信扫码关注公众号
获取更多考试热门资料