2022年职称英语考试《综合类》考试共65题，分为单选题。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、What Is the Coolest Gas in the Universe?What is the coldest air temperature ever recorded on the Earth? Where was this low temperature recorded? The coldest recorded temperature on Earth was -91℃ which occurred in Antarctica in 1983.We encounter an interesting situation when we discuss temperatures in space Temperatures in Earth orbit actually range from about +120℃ to -120℃. The temperature depends upon whether you are in direct sunlight ｏｒshade, Obviously, -120℃ is colder than our body can safely endure. Thank NASA science fｏｒwell-designed space suits that protect astronauts from these temperature extremes.The space temperatures just discussed affect only our area of the solar system . Obviously, it is hotter closer to the Sun ａｎｄ　colder as we travel away from the Sun. Astronomers estimate temperatures at Pluto are about -210℃. How cold is the lowest estimated temperature in the entire universe? Again, it depends upon your location. We are taught it is supposedly _____ to have a temperature below absolute zero, which is -273℃, at which atoms do not move. Two scientists, whose names are Cornell ａｎｄ　Wieman, have successfully cooled down a gas temperature barely above absolute zero. They won a Nobel Prize in Physics in 2001 fｏｒtheir work not a discovery in this car.Why is the two scientists\' work so important to science?In the 1920s, Satyendra Nath Bose was studying an interesting theory about particles we now call photons. Bose had trouble convincing Other scientists to believe so he contacted Albert Einstein. Einstein\'s calculations helped him theorize would behave as Bose thought but only at very cold temperatures.Scientists have also discovered that ultra-cold atoms can help them make the world\'s atomic clocks even more accurate. These clocks are so accurate today they would only lose one second every six million years! Such accuracy will help us travel in space because distance is velocity times time(d=vxt). With the long distances involved in space travel to know time as accurately as possible to get accurate distance.【单选题】

A.reasonable

B.wonderful

C.impossible

D.necessary

正确答案:C

答案解析:科学常识告诉我们，绝对零度是宇宙中的最低温度。impossible是答案。

2、Electric BackpackBackpacks are convenient. They can hold your books, your lunch, ａｎｄ　a change of clothes, leaving your hands free to do other things. Someday, if you don\'t mind carrying a heavy load, your backpacks might also power your MP3 player, keep your cell phone running, ａｎｄ　maybe even light your way home.Lawrence C. Rome ａｎｄ　his colleagues from the University of Pennsylvania in Philadelphia ａｎｄ　the Marine Biological Laboratory in Woods Hole, Mass, have invented a backpack that makes electricity from energy produced while its wearer walks. In military actions, search-and-rescue operations, ａｎｄ　scientific field studies, people rely increasingly on cell phones, global positioning system (GPS) receivers, night-vision goggles, ａｎｄ　other battery-powered devices to get around ａｎｄ　do their work. The backpack\'s electricity-generating feature could dramatically reduce the amount of a wearer\'s load now devoted to spare batteries, report Rome ａｎｄ　his colleagues in the Sept. 9, Science.The backpack\'s electricity-creating powers depend on springs used to hang a cloth pack from its metal frame. The frame sits against the wearer\'s back, ａｎｄ　the whole pack moves up ａｎｄ　down as the person walks. A gear mechanism converts vertical movements of the pack to rotary motions of an electrical generator, producing up to 7. 4 watts.Unexpectedly, tests showed that wearers of the new backpack ａｌｔｅｒtheir gaits in response to the pack\'s oscillations, so that they carry loads more comfortably ａｎｄ　with less effort than they do ordinary backpacks. Because of that surprising advantage, Rome plans to commercialize both electric ａｎｄ　non-electric versions of the backpack.The backpack could be especially useful fｏｒsoldiers, scientists, mountaineers, ａｎｄ　emergency workers who typically carry heavy backpacks. Fｏｒthe rest of us, power-generating backpacks could make it possible to walk, play video games, watch TV, ａｎｄ　listen to music, all at the same time. Electricity-generating packs aren\'t on the market yet, but if you do get one eventually, just make sure to look both ways before crossing the street!What is implied in "if you do get one eventually, just make sure to look both ways before crossing the street!" 【单选题】

A.You will be too excited to watch the traffic.

B.Enjoying electronic devices while walking may invite traffic accidents.

C.It is not possible fｏｒyou to get such a backpack.

D.It is wise of you to have such a backpack.

正确答案:B

答案解析:这个句子的字面意思是：如果你终于得到这样的背包，过马路时一定要两面都看看。也就是说，不要因为同时玩着游戏、听着音乐、看着电视，太专注以致不注意来往车辆了。

3、In the process, the light energy converts to heat energy.【单选题】

A.reduces

B.changes

C.leaves

D.drops

正确答案:B

答案解析:在这个过程中，光能转化成热能。本题难度不大，converts指“转变”，通常与to或者into搭配，和changes“变化”是近义词，其他三项都是常用词，和答案意义差异较大，干扰性不强。

4、Geology ａｎｄ　Heap(1)The importance of particular metals in the human diet has been realized within the past few decades, ａｎｄ　the idea that geology might be related to health has been recognized fｏｒa number of elements such as iodine, zinc ａｎｄ　selenium. Fｏｒexample, soils with low iodine contents produce crops, ａｎｄ　animals deficient in iodine. A lack of iodine in the human diet leads to some serious diseases.(2)The ultimate source of metals within the human body is rocks, which weather into soil, gaining ｏｒlosing some of their chemical constituents. The crops we eat selectively remove from the soil the elements that they require fｏｒgrowth. The water we drink contains trace elements leached from rock ａｎｄ　soil. Thus the geology ａｎｄ　geochemistry of the environment have effects on the chemistry ａｎｄ　health of plants, animals ａｎｄ　people.(3)So far there is no data to suggest that people living on metal-rich soils experience a potential health hazard. The levels of metals within naturally contaminated soils are generally not high enough to cause serious health problems. Living on metal-rich soils does not represent a health risk unless large quantities of soil are digested ｏｒmetal-rich dust is inhaled. However, small children are particularly exposed to metal-rich topsoil in playgrounds ａｎｄ　gardens. They are also the most likely ones to eat potentially dangerous metal-rich soil.(4)Heavy metals are persistent: they do not break down to other chemicals in the environment. Industrially polluted sites usually undergo intensive clean-up ａｎｄ　rehabilitation because heavy metals are a health concern once they enter the food chain. Some trace metals are alleged to cause cancer ａｎｄ　are also known to cause poisoning(5)In contrast, naturally contaminated soils have not been subject too risk assessment studies ａｎｄ　rehabilitation measures, despite the fact that they frequently possess metal concentrations well above those of such polluted by humans ａｎｄ　above environmental quality criteria.(6)There is a vital need to understａｎｄ　the potential risks ａｎｄ　long-term health effects of living on naturally contaminated soils. Future environmental investigations of naturally polluted soils should concentrate on the potential pathways of metals into the food chain ａｎｄ　human body. Geologists should be part of such studies as they can provide the essential background information on rock ａｎｄ　soil chemistry as well as the chemical forms of heavy metal pollution.Geologists are indispensable in the research project on geology ａｎｄ　health due to their knowledge on ____ .【单选题】

A.industrially polluted soils

B.rock ａｎｄ　soil chemistry

C.naturally polluted soils

D.the pathways of metals into the food chain

E.the element of iodine

F.the persistence of heavy metals

正确答案:B

答案解析:全文都在论述重金属的摄入可能会对人体健康产生有害影响，最后一段说到地质学家在解决调查这个问题能起的作用。这个句子是：Geologists should be part of such studies as they can provide the essential background information on rock ａｎｄ　sail chemistry as well as the chemical forms of heavy metal pollution.

5、Indian\'s NamesEach Indian was supposed to keep his birth name until he was old enough to earn one fｏｒhimself. But his playmates would always give him a name of their own. No matter what his parents called him, his childhood friends would use the name they had chosen. Often it was not pleasing, such as Bow Legs ｏｒBad Boy. But sometimes a name fit so well that the youngster found it difficult to shake it off. If he could not earn a better one from a war later, he could be stuck with a name like Bow Legs fｏｒthe rest of his life.The Indian earned his real name when he was old enough fｏｒhis first fight against the enemy. His life name depended on how he acted during this first battle. When he returned from the war, the whole tribe would gather ａｎｄ　observe the ceremony in which he would be given his name by the chief. If he had done well, he would get a good name. Otherwise he might be called Crazy Wolf ｏｒMan-Afraid-of-a Horse. So an Indian\'s name told his record ｏｒdescribed the kind of man he was.A man was given many chances to improve his name, however, if in a later battle he was brave in fighting against the enemy, he was given a better name. Some of our great fighters had as many as twelve names, all good ａｎｄ　each better than the last.An Indian\'s names belonged to him fｏｒthe rest of his life. No one else could use them. Even he himself could not give them away because names were assigned by the tribe, not the family. So no man could pass on his name unless the chief ａｎｄ　the tribe asked him to do so.Sometimes an Indian would be asked to give his name to a son who had performed a noticeable deed. I know of only three ｏｒfour times when this happened. It is the rarest honｏｒfｏｒa person -the honｏｒof assuming his father\'s name.What was the greatest honｏｒan Indian could earn?【单选题】

A.A victory in his first battle against the enemy.

B.A name given by the chief.

C.A ceremony to get his real name.

D.The right to use his father\'s name.

正确答案:D

答案解析:文章最后一句the rarest honｏｒfｏｒa person就是承袭父亲的名字，因此选D。