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
2022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。小编为您整理阅读判断分析5道练习题,附答案解析,供您备考练习。
1、Black HolesMost scientists agree that black holes exist but are nearly impossible to locate. A black hole in the universe is not a solid object, like a planet, but it is shaped like a sphere (球体). Astronomers (天文学家) think that at the center of a black hole there is a single point in space with infinite (无限的) density (稠密).This single point is called a singularity (奇点). If the singularity theory is correct, it means that when a massive star collapses, all the material in it disappears into the singularity. The center of a black hole would not really be a hole at all, but an infinitely dense point. Anything that crosses the black hole is pulled in by its great gravity.Although black holes do exist, they are difficult to observe. These are the reasons,?No light oranything else comes out of black holes. As a result, they are invisible to a telescope.?In astronomical terms, black holes are truly. Forexample, a black hole formed by the collapse of a giant star would have an event horizon (视界) only 18 miles across.?The nearest black holes would be dozens of light years away from Earth. One light year is about 6 trillion (万亿) miles. Even the most powerful telescopes could not pick out an object so small at such a great distance.In 1994 the Hubble Space Telescope provided evidence that black holes exist. There are still answers to be found, however, so black holes remain one of the mysteries of the universe. (2007年)The nearest black holes are hundreds of light years away from us.【单选题】
A.Right
B.Wrong
C.Not mentioned
正确答案:B
答案解析:题干大意:离我们最近的黑洞也有几百光年。用中心词nearest定位,原文倒数第二段提到:The nearest black holes would be dozens of light years away from Earth. 离地球最近的黑洞有几十光年(dozens),而不是“hundreds”。故答案选B。
2、Black HolesMost scientists agree that black holes exist but are nearly impossible to locate. A black hole in the universe is not a solid object, like a planet, but it is shaped like a sphere (球体). Astronomers (天文学家) think that at the center of a black hole there is a single point in space with infinite (无限的) density (稠密).This single point is called a singularity (奇点). If the singularity theory is correct, it means that when a massive star collapses, all the material in it disappears into the singularity. The center of a black hole would not really be a hole at all, but an infinitely dense point. Anything that crosses the black hole is pulled in by its great gravity.Although black holes do exist, they are difficult to observe. These are the reasons,?No light oranything else comes out of black holes. As a result, they are invisible to a telescope.?In astronomical terms, black holes are truly. Forexample, a black hole formed by the collapse of a giant star would have an event horizon (视界) only 18 miles across.?The nearest black holes would be dozens of light years away from Earth. One light year is about 6 trillion (万亿) miles. Even the most powerful telescopes could not pick out an object so small at such a great distance.In 1994 the Hubble Space Telescope provided evidence that black holes exist. There are still answers to be found, however, so black holes remain one of the mysteries of the universe. (2007年)Black holes are part of space.【单选题】
A.Right
B.Wrong
C.Not mentioned
正确答案:A
答案解析:题干大意:黑洞是太空的一部分。用space回到原文定位,文中首段第三句提到:astronomers (天文学家) think that at the center of a black hole there is a single point in space with infinite (无限的) density (稠密). 天文学家认为黑洞的中心是太空中的一个单一的无限密度的点。第二段第一句也有信息提到:This single point is called a singularity (奇点). 这个单一的点叫做奇点。故答案选A。
3、Lakes, Too, Feel Global WarmingThere\'s no doubt, In the last few decades, the average temperature on Earth has been higher than it has been in hundreds of years. Around the world, people are starting to measure the effects of global warming and trying to figure out what to do about it.Scientist recently used satellites to study the temperatures of lakes around the world and they found that lakes are heating up. Between 1985 and 2009, satellites recorded the night time temperatures of the surfaces of 167 lakes. During those 24 years, the lakes got warmer by an average of about 0.045 degree Celsius per year.In some places, lakes have been warming by as much as 0.10 degree Celsius per year. At that rate, a lake may warm by a full degree Celsius in just 10 years. That difference may seem small you might not even notice it in your bath. But in a lake, slightly warmer temperatures could mean more algae (水藻) and algae can make the lake poisonous to fish.The study shows that in some regions, lakes are warming faster than the air around them. This is important because scientists often use measurements of air temperature to study how Earth is warming. By using lake temperatures as well, scientists can get a better picture of global warming. The scientists say data on lakes give scientists a new way to measure the impact of climate change around the world.That\'s going to be useful, since no matter the country is too big ortoo small can\'t ignore climate changes. Scientists aren\'t the only ones concerned. Everyone who lives on Earth is going to be affected by the rapid warming of the planet. Many world leaders believe we might be able to do something about it, especially by reducing the amount of greenhouse(温室) gases we put into the air.That\'s why the United Nations started the Framework Convention on Climate Change, orUNFCCC. Every year the convention meets, and representatives from countries around the world gather to talk about climate change and discuss global solutions to the challenges of a warming world.Scientists generally focus on air temperatures when studying global warming.【单选题】
A.Right
B.Wrong
C.Not mentioned
正确答案:A
答案解析:本题难度不大,答案依据比较明显,在文章第四段第二句This is important because scientists often use measurements of air temperature to study how Earth is warming.谈到科学家在研究地球变暖问题时需要测量空气的温度,题干和原文句意相符,答案是A。
4、The GuitarThe Museum of Fine Arts in the eastern city of Boston recently began showing a collection of guitars. The exhibit is called Dangerous Curves: The Art of the Guitar. It shows how the instrument developed during the past four centuries. Probably no other musical instrument is as popular around the world as the guitar. Musicians use the guitar foralmost every kind of music. Country and western music would not be the same without a guitar. The traditional Spanish folk music called Flamenco could not exist without a guitar. The sound of American blues music would not be the same without the sad cry of the guitar. and rock and roll music would almost be impossible without this instrument. Music experts do not agree about where the guitar first was played. Most agree it is ancient. Some experts say an instrument very much like a guitar was played in Egypt more than a thousand years ago. Some other experts say that the ancestorof the modern guitar was brought to Spain from Persia sometime in the twelfth century. The guitar continued to develop in Spain. In the seventeen-hundred it became similar to the instrument we know today. Many famous musicians played the instrument. The famous Italian violinist Niccolo Paganinni played and wrote music forthe guitar in the early eighteen hundred. Franz Schubert used the guitar to write some ofhis famous works. One guitar in the Boston Fine Arts display was played by Les Paul. It is a very old electric guitar. Mister Parl began experimenting with ways to make an electric guitar in the nineteen-thirties. The Gibson Guitar Company began producing its famous Les Parl Guitar in 1952. The instrument has the same shape and the same six strings as the traditional guitar, but it sounds very different. The guitar has always been important to blues music. The electric guitar Mister Paul helped develop made modern blues music possible. There have been many great blues guitarists. Yet, music experts say all blues guitar players are measured against one man and his famous guitar. That man is B-B King. Every blues fan knows that years ago B-B King named his guitar Lucille. Lucille is so important to American music that the Smithsonian Institution in Washington D-C has asked forit. They want to display the large, beautiful black guitar in one of the museums because it is a part ofAmerican culture. The guitar exhibit is called Dangerous Curve, because it displays all kinds of damages guitar has done to people. 【单选题】
A.Right
B.Wrong
C.Notmentioned
正确答案:B
答案解析:由第1段可知,它是吉他艺术,它展示出此种乐器在过去一个世纪的发展过程。因此选B。
5、Inventorof LEDWhen Nick Holonyak setout to create a new kind of visible lighting using semiconductoralloys, his colleagues thought he was unrealistic. Today, his discovery of light-emitting diodes, orLEDs, are used in everything from DVDs to alarm clocks to airports. Dozens of his students have continued his work, developing lighting used in traffic lights and other everyday technology. On April 23,2004, Holonyak received the $500,000 Lemelson-MIT Prize at a ceremony in Washington. This marks the lOth year that the Lemelson-MIT Program at the Massachusetts Institute of Technology (MIT) has given the award to prominent inventors. "Anytime you get an award big orlittle. It\'s always a surprise. " Holonyrak said. Holonyak, 75, was a student of john Bardeen, an inventorof the transistor, in the early 1950s. After graduate school, Holonyak worked at Ben Labs. He later went to General Electric, where he invented a switch now widely used in house dimmer switches. Later, Holonyak started looking into how semiconductors could be used to generate light. But while his colleagues were looking at how to generate invisible light, he wanted to generate visible light. The LEDS he invented in 1962 now last about 10 times longer than incandescent bulbs, and are more environmentally friendly and effective. Holonyak, now a professorof electrical and computer engineering and physics at the University of Illinois, said he suspected that LEDs would become as commonplace as they are today, but didn\'t realize how many uses they would have. "You don\'t know in the beginning. You think you\'re doing something important. You think it\'s worth doing, but you really can\'t tell what the big payoff is going to be, and when, and how. You just don\'t know, "he said. The Lemelson. MIT Program also recognized Edith Flanigen, 75, with the $100,000 Lemelson-MIT Lifetime Achievement Award forher work on a new generation of "molecular sieves", that can separate molecules by size. Holonyak said that you should not do anything you are not interested in.【单选题】
A.Right
B.Wrong
C.Not mentioned
正确答案:C
答案解析:利用句中出现的核心词interested作为答案线索,发现文章中没有出现该词,也没有出现与该词词义相关的其他词,而且也没有涉及这方面的内容,因此选C。
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。
2022-12-27
2022-12-27
2022-12-27
2022-12-27
2022-12-27
微信扫码关注公众号
获取更多考试热门资料