A PLANET'S SURFACE TEMPERATURE

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文档下载后可定制随意修改，请根据实际需要进行相应的调整和使用，谢谢!并且，本店铺为大家提供各种各样类型的实用资料，如教育随笔、日记赏析、句子摘抄、古诗大全、经典美文、话题作文、工作总结、词语解析、文案摘录、其他资料等等，如想了解不同资料格式和写法，敬请关注!Download tips: This document is carefully compiled by theeditor. I hope that after you download them,they can help yousolve practical problems. The document can be customized andmodified after downloading,please adjust and use it according toactual needs, thank you!In addition, our shop provides you with various types ofpractical materials,such as educational essays, diaryappreciation,sentence excerpts,ancient poems,classicarticles,topic composition,work summary,word parsing,copy excerpts,other materials and so on,want to know different data formats andwriting methods,please pay attention!英文回答：Is there life beyond Earth? It's a question that has fascinated humans for centuries, and one that we may never know the answer to for sure. But there are some tantalizing clues that suggest that we may not be alone in the universe.One of the most important factors in determining whether a planet can support life is its distance from its star. A planet that is too close to its star will be too hot for liquid water to exist on its surface, while a planet that is too far away will be too cold. Earth is located in the "habitable zone" of our solar system, which means that it is just the right distance from the sun to support liquid water.Another important factor is the presence of a thick atmosphere. An atmosphere helps to regulate a planet's temperature and protect it from harmful radiation. Earth's atmosphere is made up of a mixture of gases, including nitrogen, oxygen, and carbon dioxide. These gases help to keep Earth's surface temperature relatively stable and protect us from the sun's harmful rays.Of course, the most important factor in determining whether a planet can support life is the presence of water. Water is essential for all known forms of life, and it is thought that any planet that has liquid water on its surface is likely to be habitable.So, what are the chances that there is life on other planets? It's impossible to say for sure, but there are some reasons to be optimistic. First, there are billions of stars in our galaxy, and many of them are likely to have planets orbiting them. Second, we know that there are many different types of planets, and some of them are likely to be habitable. Third, we have discovered that life on Earth is incredibly resilient. It can survive in a wide range of environments, from the depths of the ocean to the tops of mountains.Of course, there are also some reasons to be pessimistic. First, we have yet to find any definitive evidence of life beyond Earth. Second, the universe is a vast and dangerous place, and it is possible that life is very rare. Third, even if there is life on other planets, it is likely to be very different from life on Earth.Ultimately, the question of whether there is life beyond Earth is one that we may never know the answer to. But it is a question that is worth asking, and one that will continue to fascinate us for centuries to come.中文回答：地球之外还有生命吗？这个问题已经让人类着迷了几个世纪，而且我们可能永远无法确定答案。

3分钟关于全球变暖的英语演讲稿5篇3分钟关于全球变暖的英语演讲稿1In recent years do you think the weather suddenly turned hot had the cool autumn now almost until early October the hottest day in August has reached more than 40 degrees. These is different from normal vision we have ourselves toblame the curse.Today the term “global warming” has gradually penetrated into our life. The word sounds very academic even feel very far away from us so some people arenot. In fact the effects of global warming is beyond our imagination: global precipitation redistribution glaciers and permafrost melt rising sea levels andso on. Both harm the natural ecosystem balance more threatening human foodsupply and living environment.Now that you have aware of the dangers of global warming you should go to predict and improve it. Imagine if global warming is melting in the 21st century the global average temperature rising gradually so the next super storms thenext round of searing heat the next major natural disasters will happen? China? The United States? Japan? No one knows. The debate has ended. Scientists around the world agree points out that the earth’s average temperature has increased nearly 1 ℃. Due to all the early warning information human use of thousands of ships tens of thousands of the monitoring stations of the land and outer space satellite to monitor the earth together. Scientists will have the most advanced computer data input model to estimate the earth can face the future. Prediction results are worrying. Forty years later the Himalayan glaciers the water to the survival of millions of people are likely to disappear. The Greenland ice sheet could melt in 50 years. Currently half of the world’s biodiversity in the amazon rainforest but the rainforest is likely to turn into a piece of barren land bythe end of the century. Is likely to be the future of the world like in themovie “the day after tomorrow” tornado ice fracture the temperature fell sharply ice storms freezing rain earthquake flood tsunami volcanic eruption... This isnot a crazy fantasy if humans don’t stop destroying the environment it will become a reality!However in the warming is also good. Global warming on rice in heilongjiang province has played a large role.Just global warming to human future development is still the do more harm than good.In order to save the planet we should try to be: don’t open air conditioning use recycled paper environmental protection to leave the meat with nitrous oxide don’t use plastic bags R22 by bus; R22; Little drops of life. Actually it’s not difficult to environmental protection as long as you support environmental protection is the best gift you gave the planet.Thank you all!3分钟关于全球变暖的英语演讲稿2Many people believe that human activity is causing the earth’s temperature to rise. They say that this global warming will have dreadful consequences for our environment, such as drought and flooding.The earth’s temperature is rapidly changing. As a result there has been a lot of climate change such as heat waves, droughts and floods. Scientists believe that this is the result of human activity, which is polluting the Earth’s atmosphere. This could become a disaster if governments do not act to help prevent global warming. They can act in three ways; by supporting research, by making laws and by keeping the general public informed.Firstly, governments can support research. For example, they should encourage companies to develop vehicles that cause less pollution. They should also support alternative sources of electricity from wind and water rather than from oil and coal. As well, they should sponsor conferences to discuss the effects of greenhouse gas emissions and possible solutions to the problem.Secondly, they should make laws that limit the amount of greenhouse gases that companies can emit. Private companies should be rewarded for following these laws. They should also be punished for creating pollution.Finally, everybody is affected by global warming. Therefore, it isimportant that governments involve individuals in the problem solving process. For example they should encourage households to save as much energy as possible by using more efficient light bulbs or less hot water. They should also encourage the public to recycle, and this should be compulsory for everyone. Another way of saving energy is by public transport systems. Governments should spend money on public transport to make it as easy as possible for the public to save energy.In summary, it is clear that there are a lot of things that governments can do to prevent global warming. They should involve companies, support scientists and encourage individuals to protect the planet.3分钟关于全球变暖的英语演讲稿3global warming the gradual increase of the temperature of the earth’s lower atmosphere as a result of the increase in greenhouse gases since the Industrial Revolution.The temperature of the atmosphere near the earth’s surface is warmed through a natural process called the greenhouse effect. Visible shortwave light comes from the sun to the earth passing unimpeded through a blanket of thermal or greenhouse gases composed largely of water vapor carbon dioxide methane nitrous oxide and ozone. Infrared radiation reflects off the planet’s surface toward space but does not easily pass through the thermal blanket. Some of it is trapped and reflected downward keeping the planet at an average temperature suitable to life about 60°F (16°C).Growth in industry agriculture and transportation since the Industrial Revolution has produced additional quantities of the natural greenhouse gases plus chlorofluorocarbons and other gases augmenting the thermal blanket. It is generally accepted that this increase in the quantity of greenhouse gases is trapping more heat and increasing global temperatures making a process that has been beneficial to life potentially disruptive and harmful. During the past century the atmospheric temperature has risen 1.1°F (0.6°C) and sea level has risen several inches. Some projected longer-term results of global warming include melting of polar ice with a resulting rise in sea level and coastal flooding; disruption of drinking water supplies dependent on snow melts; profound changes in agriculture due to climate change; extinction of species as ecological niches disappear; more frequent tropical storms; and an increased incidence of tropical diseases.Improved automobile mileage reforestation projects energy efficiency in construction and national support for mass transit are among relatively simpler adjustments that could significantly lower U.S. production of greenhouse gases. More aggressive adjustments include a gradual worldwide shift away from the use of fossil fuels the elimination of chlorofluorocarbons and the slowing of deforestation by restructuring the economies of developing nations. In 20__ theBush administration proposed several voluntary measures for slowing the increase in instead of reducing emissions of greenhouses gases.3分钟关于全球变暖的英语演讲稿4Global WarmingThere is little doubt that the planet is warming. Over the last century,the planets temperature has risen by around 1 degree fahrenheit (0.6 of a degree celsius). The warmest since the mid 1800’s was the 1990s. The hottest years recorded were 1997, 1998, 20xx, 20xx, 20xx.The United Nations panel on climate change projects that the global temperatures will rise 3-10 degrees fahrenheit by the century’s end - enough to have the polar caps all but melted. If the ice caps melt, a vast majority of our countries borders will be under water. Monuments and great buildings, as well as homes and lives will be under water, including New York City.So now we know what some of the causes are for global warming, how can weas individuals do our part to help save the planet?The answer is simpler than you may think. You don’t have to go miles away from home to protest, or spend masses of money. If you try to follow the few simple steps that I shall now give you, you will have started to help usall.Firstly, plant a tree. This could be easier than it sounds. Join or helpout a local wildlife group and ask to plant a tree. Trees, when fully grown,will help keep the planet cooler. On the same point, you could protest against the demolition of the rainforests. This is the same principle, we need the trees to cool our planet and yet they are chopping them down to create roads or homes.Something as simple as walking instead of taking the car will help reduce pollution. As well as stopping pollution, you are giving yourself exercise, something important for our bodies. So the next time you get into your car, or your motorbike, think - do I have to make this journey by vehicle or can I walk?When you are at home, and your getting a little cold. Put a jumper on anddo not adjust the heating. The extra heat produced by our homes also affects the planet. So try wearing an extra layer in winter.If possible, buy your fruit and vegetables from local suppliers. And try toavoid imported goods. The more foreign food that we import the more pollution from aeroplanes and boats it will create.Keeping to the speed limit can also help the environment. The more you speed the more petrol you are going to use, making the pollution higher. Also, SUV’s make about six times their own weight in CO2 each year. A small efficient diesel car covering the same distance not only uses much less fuel; it makes two thirds less.If possible use solar energy, after all it is free; all you need to buy is the equipment. You can get much of your hot water and heating from the sun and even generate electricity.Reduce, reuse and recycle. Only buy what you need; don’t stock the cupboards with things you may or may not use. Reuse whatever you can, like containers and paper, and recycle what you cannot reuse. It really is as simple as that.Finally turning off unused sources of power such as televisions and heaters will help the environment, as well as save you money.If everybody stuck to these rules, we would be doing a great thing by protecting the earth. So please take into consideration what I have said, andtry to do your part. After all, it will be our next generation that will feel the effects.3分钟关于全球变暖的英语演讲稿5The topic of global warming is attracting the attentions of countries all over the world. This global warming is on such a scale that it will wreak havoc on both poor and rich countries. It could even make large sections of the earth uninhabitable.What have caused global warming? The theory and evidence strongly suggest that human-related emissions of carbon into the atmosphere is causing, and will in the future cause, significant global warming.How we should fight global warming? We should be taking active steps now to curb emissions and we should be engaging in international co-operation to do so.A simple natural way to fight global warming is to have escalating Taxes on carbon emissions. There is a simple reason why this is the ideal remedy: carbon emissions into the atmosphere constitute a nuisance to everybody on the planet; so those who make this nuisance should pay for their actions. A furtherrecommendation is that there should be large-scale government support for research into new technology that will reduce carbon emissions.China is the rising economic star; and if it also wants to assert world leadership status, it is a good xxrtunity for China to show the world that it has a moral commitment and the will to fight global warming.。

全球变暖英语作文四级Global Warming。

Global warming has become a major environmental issue in recent years. It refers to the increase in the Earth's average surface temperature due to the greenhouse effect caused by the release of carbon dioxide and otherpollutants into the atmosphere. This phenomenon has had a significant impact on the planet, leading to a range of adverse effects such as rising sea levels, extreme weather events, and the loss of biodiversity.One of the main causes of global warming is the burning of fossil fuels such as coal, oil, and natural gas for energy production. This releases large amounts of carbon dioxide into the atmosphere, which traps heat and leads to the warming of the planet. In addition, deforestation and industrial activities also contribute to the increase in greenhouse gases, further exacerbating the problem.The consequences of global warming are far-reaching and have the potential to affect every aspect of life on Earth. Rising temperatures have led to the melting of polar ice caps and glaciers, causing sea levels to rise and posing a threat to coastal communities. Moreover, extreme weather events such as hurricanes, droughts, and heatwaves have become more frequent and intense, causing widespread damage and loss of life. In addition, the warming of the oceans has led to the bleaching of coral reefs and the disruption of marine ecosystems, leading to a decline in biodiversity.In response to the threat of global warming, it is crucial for governments, businesses, and individuals to take action to reduce greenhouse gas emissions and mitigate the impact of climate change. This can be achieved through the implementation of policies that promote the use of renewable energy sources such as solar and wind power, as well as the development of energy-efficient technologies. In addition, efforts to protect and restore natural ecosystems, such as forests and wetlands, can help to sequester carbon and reduce the amount of greenhouse gases in the atmosphere.Furthermore, individuals can also play a role in addressing global warming by making small changes to their daily habits. This can include reducing energy consumption, using public transportation, and recycling and reducing waste. By making these changes, individuals can help to reduce their carbon footprint and contribute to the collective effort to combat climate change.In conclusion, global warming is a pressing issue that requires urgent action to address. The consequences of climate change are already being felt around the world, and it is essential for everyone to work together to reduce greenhouse gas emissions and protect the planet for future generations. By taking proactive measures to address global warming, we can create a more sustainable and resilient world for all.。

2000年一．The difference between a liquid and a gas is obvious (26) the conditions of temperature and pressure commonly found at the surface of the Earth. A liquid can be kept in an open container and (27) it to the level of a free surface. A gas forms no free surface but (28) to diffuse throughout the space available; it must (29) be kept in a closed container, as (30) a planet's atmosphere. The distinction was a prominent feature of early theories (31) the phases of matter. In the nineteenth century, for example, one theory maintained that a liquid could be "dissolved" in a vapor without losing its identity, and another theory held that the two phases are( 32 )different kinds o f molecules(分子). The theories now prevailing (33) a quit e different approach by emphasizing what liquids and gases have in common. They are both forms of matter that have no permanent structure and they both flow ea silly. They are fluids.The( 34 )similarly of liquids and gases becomes clearly apparent when the temperature and pressure are raised somewhat.(35) A closed container partially filled with a liquid is heated. The liquid expands or (36) becomes less dense; some of it evaporates. (37), the vapor above the liquid surface becomes dense r as the evaporated molecules are added to it. The combination of temperature and d pressure (38) the densities become equal is (39) the critical point. Above the critical point the liquid and the gas can no longer be( 40 ); there is a single, undifferentiated fluid phase of uniform density.26. A. in B. on C. under D. beyond27. A. fills B. be filled C. filling D. to fill28. A. intends B. tends C. inclines D. contends29. A. however B. nevertheless C. so D. therefore30.A. in the event of B. in the case of C. with a view to D. with reference to31. A. having described B. described C. describing D. to have described32. A. made up of B. consisted of C. constituted of D. made from33. A. apply B. adapt C. take D. conduct34. A. elementary B. crucial C. rudimentary D. fundamental35. A. Suppose B. To suppose C. Being supposed D. Supposed36. A. in a word B. in the meantime C. in other words D. in that case37. A. Similarly B. In contrast C. Furthermore D. Instead38. A. on that B. on which C. at that D. at which39. A. known B. defined C. called D. referred to40. A. classified B. recognized C. categorized D. distinguished2001The translator must have an excellent, up-to-date knowledge of his source languages, full facility in the handling of his target language, which will be his mother tongue or language of habitual ( 26 )and a knowledge and understanding of the latest subject-matter in his field of specialization.This is, as it were, his professional equipment.( 27 )this, it is desirable that he should have an inquiring mind, wide interests, a good memory and the ability to grasp quickly the basic principles of new developments. He should be willing to work ( 28 )is own, often at high speeds, but should be humble enough to consult others ( 29 )his own knowledge not always prove adequate to the task in hand. He should be able to type fairly quickly and accurately and, if he is working mainly for publication, should have more than a nodding ( 30 )with printing techniques and proof-reading. If he is working basically as an information translator, let us say, for an industrial firm, he should have the flexibility of mind to enable him to ( 31 )rapidly from one source language to another, as well as from one subject-matter to another, since this ability is frequently ( 32 )of him in such work. Bearing in mind the nature of the translator’s worksite. The processing of the written word, it is, strictly speaking, ( 33 )that he should be able to speak the language he is dealing with. If he does speak them, it is an advantage (34) a hindrance, but this skill is in many ways a luxury that he can (35) with. It is, (36), desirable that he should have an approximate idea about the pronunciation of his source languages even if this is restricted to ( 37 )how proper names and place names are pronounced. The same ( 38 )to an ability to write his source languages. If he can, well and good; if he cannot, it does not ( 39 ). There are many other skills and ( 40 )that are desirable in a translator.26. A. application B. use C. utility D. usage27. A. More than B Except fo C.Because of D.In addition to28. A. of B. by C. for D. on29. A. should B. when C. because D. if30. A. familiariy B. acquaintance C. knowledge D. skill31. A. change B. transform C. turn D. switch32. A. lacked B. required C. faced D. confronted33. A. essential B. unnecessary C. advantageous D. useless34. A. over B. despite C. rather than D. instead35. A. deal B. concern C. work D. do away36. A. however B. accordingly C. consequently D. thus37. A. knowing B. having known C. know D. have known38. A. refers B. comes C. applies D. amounts39. A. matter B. mind C. harm D. work40. A. characteristics B. qualities C. distinctions D. features 2002年People thinking about the origin of language for the first time usually arrive at the conclusion that it developed gradually as a system of grunts, hisses and cries and ( 26 ) a very simple affair in the beginning.( 27 ), when we observe the language behaviour of ( 28 )we regard as primitive cultures,we find it ( 29 )complicated. It was believed that an Eskimo musthave the tip of his tongue a vocabulary of more than 10,000 words ( 30 ) to get along reasonably well, much larger than the active vocabulary of an average businessman who speaks English.( 31 ), these Eskimo words are far more highly infleeted(词尾变化的) than ( 32 ) of any of the well -known European languages,for a( 33 )noun can be spoken or written in ( 34 ) hundred different forms, each ( 35 )a precise meaning different from that of any other.The forms of the verbs are even more( 36 ). The Eskimo language is, therefore,one of the most difficult in the world to learn,( 37 ) the result that almost no traders or explorers have( 38 )tried to learn it. Consequently , there has grown up, in communication between Eskimos and whites, a jargon ( 39 )to the pidgin English used in Old China, with a vocabulary of from 300 to 600 uninflected words. Most of them are derived from Eskimo but some are derived from English, Danish,Spanish, Hawaiian and other languages. It is this jargon that is usually( 40 ) by travellers as “the Eskimo language”.26. A. must be B. must have been C. ought to be D. should be27. A. However B. Therefore C. Probably D. Undoubtedly28. A. whose B. that C.which D.what29. A. conspicuously B. usually C. surprisingly D. sufficiently30. A. so as B. so that C. as such D. as well as31. A. However B. Moreover C. Though D. Therefore32. A. the others B. all others C. these D. those33. A. single B. singular C. plural D. compound34. A. some B. several C. various D. varied35. A. getting B. causing C. having D. owning36. A. endless B. multiple C. uncountable D. numerous37. A. with B. for C. owing to D.as38. A. still B. indeed C. just D. even39. A. alike B. similar C. related D. relevant40. A. referred to B. talked about C. spoken D. told 2003年During McDonald’s early years French fries were made from scratch every day. Russet Burbank potatoes were (26), cut into shoestrings, and fried in its kitchens. (27)the chain expanded nationwide, in the mid-1960s, it sought to cut labour costs, reduce the number of suppliers, and (28) that its fries tasted the same at every resta urant. McDonald’s began (29) to frozen French fries in 1966—and few customers noticed the difference. (30), the change had a profound effect on the nation’s agriculture and diet. A familiar food had been transformed into a highly processed industrial (31). McDonald’s fries now come from huge manufacturing plants (32) can process two million pounds of potatoes a day. The expansion (33) McDonald’s and the popularity of itslow-cost, mass-produced fries changed the way Americans eat.The taste of McDonald’s French fries played a crucial role in the chain’s success—fries are much more profitable than hamburgers—and was (34) praised by customers, competitors, and even food critics. Their (35) taste does not stem from the kind of p otatoes that McDonald’s (36), the technology that processes them, or the restaurant equipment that fries them: other chains use Russet Burbank, buy their French fries from the (37) large processing companies, and have similar (38) in their restaurant kitchens. The taste of a French fry is (39)determined by the cooking oil. For decades McDonald’s cooked its French fries in a mixture of about 7 per cent cottonseed oil and 93per cent beef fat. The mixture gave the fries their unique (40).26. A.scaled B.stripped C.peeled D.sliced27. A.As B.Due to C.Owing to D.With28. A.ensue B.ensure C.enrich D.enable29. A.switching B.diverting C.modifying D.altering30. A.Still B.Anyway C.Besides D.Nevertheless31. A.brand B.stuff modity D.produce32. A.this B.that C./ D.what33. A.into B.from C.in D.of34. A.long B.only C.first D.lonely35. A.distinctive B.distinct C.distinguished D.distinguishable36. A.possesses B.buys C.acquires D.grows37. A.exact B.identical C.same D.alike38. A.woks B.pots C.boilers D.fryers39. A.adequateely B.massively C.plentifully rgely40. A.flavour B.fragrance C.smell D.perfume2004The normal human daily cycle of activity is of some 7-8 hours’ sleep alternation with some 16-17 hours’ wakefulness and that the sl eep normally coincides(26) the hours of darkness. Our present concern is with how easily and to what extent this(27) can be modified.The question is no mere academic one. The ease with which people can change from working in the day to working at night is a(28)of growing importance in industry where automation(29) round-the-clock working of machines. It normally(30)from five days to one week for a person to adapt to a(31) routine of sleep and wakefulness, sleeping during the day and working at night. (32) it is often the case in industry that shifts are changed every week. This means that no sooner has he got used to one routine(33)he has to change to another, (34)much of his time is spent neither working nor sleeping very(35).One answer would seem to be(36) periods on each shift, a month, or even three months. (37), recent research has shown that people on such systems will revert to go back to their(38) habits of sleep and wakefulness duringthe week-end and that this is quite enough to destroy any(39) to night work built up during the week. The only real solution appears to be to hand over the night shift to those permanent night workers whose(40) may persist through all week-ends and holidays.26.A.in B.with C.of D.over27.A.cycle B.period C.circle D.round28.A.problem B.difficulty C.trouble D.matter29.A.asks B.invites C.calls for D.reacts to30.A.takes B.spends C.demands D.asks31.A.former B.returned C.reversed D.regular32.A.Therefore B.Unfortunately C.In a word D.In comparison33.A.as B.when C.then D.than34.A.though B.so that C.while D.as35.A.efficiently B.good C.easily D.happily36.A.shorter B.better C.longer D.nicer37.A.So B.In short C.Similarly D.However38.A.new B.normal C.temporary D.favourite39.A.change B.return C.adaptation D.tendency40.A.wakefulness B.sleep C.preference D.habit2005A person’s home is as much a reflection of his personality as the clothes he wears, the food he eats and the friends with whom he spends his time. Depending on personality, most have in mind a(n) “(31) ______ home”. But in general, and especially for the student or new wage earners, there are practical (32) of cash and location on achieving that idea.Cash (33) , in fact, often means that the only way of (34) when you leave school is to stay at home for a while until things (35) financially. There are obvious (36) of living at home—personal laundry is usually (37) done along with the family wash; meals are provided and there will be a well-established circle of friends to (38) . And there is (39) the responsibility for paying bills, rates, etc.On the other hand, (40) depends on how a family gets on. Do your parents like your friends? You may love your family—(41) do you like them? Are you prepared to be (42) when your parents ask where you are going in the evening and what time you expect to be back? If you find that you cannot manage a(n) (43) , and that you finally have the money to leave, how do you (44) finding somewhere else to live?If you plan to stay in your home area, the possibilities are (45) well-known to you already. Friends and the local paper are always (46) . If you are going to work in a (47) area, again there are the papers—and the accommodation agencies, (48) these should be approached with (49) . Agencies are allowed to charge a fee, usually the (50) of the first week’s ren t, if you take accommodation they have found for you.31. A. ideal B. perfect C. imaginary D. satisfactory32. A. deficiencies B. weaknesses C. insufficiencies D. limitations33. A. cut B. shortage C. lack D. drain34. A. getting over B. getting in C. getting back D. getting along35. A. improve B. enhance C. develop D. proceed36. A. concerns b. issues C. advantages D. problems37. A. still B. always C. habitually D. consequently38. A. call in B. call over C. call upon D. call out39. A. always B. rarely C. little D. sometimes40. A. little B. enough C. many D. much41. A. and B. but C. still D. or42. A. tolerant B. hostile C. indifferent D. good-tempered43. A. agreement B. consensus C. compromise D. deal44. A. go about B. go over C. go in for D. go through45. A. seldom B. less C. probably D. certainly46. A. dependent B. a good source of information C. of great value D.reliable47. A. familiar B. cold C. humid D. new48. A. though B. while C. since D. as49. A. enthusiasm B. hesitation C. caution D. concern50. A. same B. equivalent C. equal D. simiarity2006年七．There are many superstitions in Britain, but one of the most ( 31 ) held is that it is unlucky to walk under a ladder even if it means (32) the pavement into a busy street! (33) you must pass under a ladder you can (34) bad luck by crossing your fingers and (35) them crossed until you have seen a dog. (36) , you may lick your finger and (37) a cross on the toe of your shoe, and not look again at the shoe until the (38) has dried.Another common (39) is that it is unlucky to open an umbrella in the house-it will either bring (40) to the person who opened it or to the whole (41). Anyone opening an umbrella in fine weather is (42), as it inevitably brings rain!The number 13 is said to be unlucky for some, and when the 13th day of the month (43) on a Friday, anyone wishing to avoid a bad event had better stay (44). the worst misfortune that can happen to a person is caused by breaking a mirror, (45) it brings seven years of bad luck! The superstition is supposed to (46) in ancient times, when mirrors were considered to be tools of the gods. Black cats are generally considered lucky in Britain, even though they are (47) witchcraft.. it is (48) lucky if a black cat crosses your path-although in America the exact opposite belief prevails.Finally, a commonly held superstition is that of touching wood (49) luck. This measure is most often taken if you think you have said something that ist empting fate, such as “my car has never (50) , touch wood?”31. A broadly B widely C quickly D speedily32. A running from B jumping off C stepping off D keeping from33. A If B As C Though D Unless34. A erase B remove C avoid D ease35. A keep B keeping C kept D to keep36. A Consequently B However C Comparatively D Alternatively37. A make B print C perform D produce38. A label B symbol C mark D cut39. A argument B superstition C opinion D idea40. A loss B difficulty C tragedy D misfortune41. A house B household C home D circle42. A unwise B unintelligent C unpopular D unfortunate43. A falls B arrives C drops D happens44. A away B outdoors C indoors D far45. A when B as C if D though46. A have originated B be originating C be originated D originate47. A concerned about B related with C associated with D connected in48. A especially B specially C frequently D rarely49. A as B for C in D of50. A broken up B broken off C broken away D broken down2008年Salt, shells or metals are still used as money in out-of-the-way parts of the world today.Salt may seem rather a strange (31) to use as money, (32)in countries where the food of the people is mainly vegetable, it is often an (33) necessity. Cakes of salt, stamped to show their (34), were used as money in some countries until recent (35), and cakes of salt (36) buy goods in Borneo and parts of Africa.Sea shells (37) as money at some time(38) another over the greater part of the Old World. These were (39) mainly from the beaches of the Maldives Islands in the Indian Ocean, and were traded to India and China. In Africa, shells were traded right across the (40)from East to West.Metal, valued by weight, (41) coins in many parts of the world. Iron, in lumps, bars or rings, is still used in many countries(42) paper money. It can either be exchanged(43) goods, or made into tools, weapons, or ornaments. The early money of China, apart from shells, was of bronze, (44)in flat, round pieces with a hole in the middle, called "cash". The (45) of these are between three thousand and four thousand years old - older than the earliest coins of the eastern MediterraneaNowadays, coins and notes have (46) nearly all the more picturesque (47) of money, and (48) in one or two of the more remote countries people still keep it for future use on ceremonial (49) such as weddings and funerals, examples of (50)money will soon be found only in museums.(31) A. object B. article C. substance D. category(32) A. but B. and C. so D. even(33) A. abstract B. advantageous C. abundant D. absolute(34) A. weight B. value C. role D. size(35) A. times B. events C. situations D. condition(36) A. even B. also C. still D. never(37) A. had been used B. are used C. would be used D. would have been used(38) A. and B. but C. yet D. or(39) A. collected B. produced C. grown D. raised(40) A. city B. district C. communib D. continent(41) A. processed B. produced C. preceded D. proceeded(42) A. in spite of B. instead of C. along with D. in line with(43) A. against B. as C. in D. for(44) A. often B. seldom C. really D. much(45) A. earlier B.earliest C.better D.best(46) A. replaced B. reproduced C. reflected D. recovered(47) A. sizes B. shapes C. formats D. forms(48) A. while B. although C. because D. if(49) A. events B. gatherings C. occasions D. assemblies(50) A. original B. primitive C. historical D. crude2009年Scientists around the world are racing to learn how to rapidly diagnose, treat and stop the spread of a new, deadly disease. SARS -- Severe Acute Respiratory Syndrome --- was (31) for the first time in February 2003 in Hanoi, (32) since then has infected more than 1,600 people in 15 countries, killing 63. At this (33),there are more questions than answers surrounding the disease.Symptoms start (34) a fever over 100.4 degrees F, chills, headache or body (35). Within a week, the patient has a dry cough, which might (36) to shortness of breath. In 10% to 20% of cases, patients require (37)ventilation to breathe. About 3.5% die from the disease. Symptoms (38) begin in two to seven days, but some reports suggest it (39) take as long as 10 days. Scientists are close to (40) a lab test to diagnose SARS. In the meantime, it is diagnosed by its symptoms. There is no evidence (41) antibiotics or anti-viral medicines help, (42) doctors can offer only supportive care. Patients with SARS are kept in isolation to reduce the risk of(43) Scientists aren't sure yet, but some researchers think it's a (44) discovered coronavirus, the family of viruses that cause some common colds.Most cases appear to have been passed (45) droplets expelled when infected patients cough or sneeze. Family members of infected people and medical workers who care (46) them have been most likely to (47) the illness. But recent developments in Hong Kong suggest that the(48)might spread through air, or that the virus might (49) for two to three hours on doorknobs or other (50). Health experts say it is unlikely, though, that sharing an elevator briefly with an infected person would be enough to pass the virus.(31) A. detected B. caught C. disclosed D. revealed(32) A. but B. and C. or D. yet(33) A. time B. point C. aspect D. instance(34) A. from B. over C. upon D. with(35) A. hurt B. sore C. aches D. feelings(36) A. process B. advance C. progress D. convert(37) A. automatic B. artificial C. mechanical D. controlled(38) A. regularly B. ordinarily C. traditionally D. generally(39) A. will B. might C. should D. must(40) A. cultivating B. fostering C. developing D. designing(41) A. which B. that C. whether D. what(42) A. so B. but C. still D. yet(43) A. communication B. transportation C. transformation D. transmission(44) A. lately B. newborn C. newly D. renewed(45) A. under B. through C. beneath D. from(46) A. for B. over C. after D. about(47) A. acquire B. receive C. obtain D. contract(48) A. ailment B. ill-health C. disease D. infection(49) A. continue B. linger C. delay D. persist(50) A. exteriors B. outside C. surfaces D. coverings2010年How men first learned to invent words is unknown; (31) ____, the origin of language is a mystery. All we really know is that men, unlike animals, somehow invented certain (32) ____ to express thoughts and feelings, actions and things, (33) ____ they could communicate with each other; and that later they agreed (34) ____ certain signs, called letters, which could be (35) ____ to represent those sounds, and which could be (36) _____. Those sounds, whether spoken, (37) _____ written in letters, we call words.The power of words, then, lies in their (38) ____ the things they bring up before our minds. Words become (39) ____ with meaning for us by experience; (40)._____ the longer we live, the more certain words (41) _____ to us the happy and sad events of our past: and the more we (42) ____, the more the number of words that mean something to us (43) ____Great writers are those who not only have great thoughts but also express these thoughts in words which appeal (44) ____ to our minds and emotions. This (45)._____ and telling use of words is what we call (46) ____ style. Above all, the real poet is a master of (47) ____. He can convey his meaning in words which singlike music, and which (48) _____ their position and association can (49) ____ men to tears. We should, therefore, learn to choose our words carefully and use them accurately, or they will (50) ____ our speech or writing silly and vulgar.(31) A. in addition B. in other words C. in a word D. in summary(32) A. sounds B. gestures C. signs D. movements(33) A. such that B. as that C. so that D. in that(34) A. in B. with C. of D. upon(35) A. spelt B. combined C. written D copied(36) A. written down B. handed down C. remembered D. observed(37) A. and B. yet C. also D. or(38) A. functions B. associations C. roles D. links(39) A. filled B. full C. live D. active(40) A. but B. or C. yet D. and(41 ) A. reappear B. recall C. remember D. recollect(42) A. read and think B. read and recall C. read and learn D. read and recite(43) A. raises B. increases C. improves D. emerges(44) A. intensively B. extensively C. broadly D. powerfully(45) A. charming B. academic C. conventional D. common(46) A. written B. spoken C. literary D. dramatic(47) A. signs B. words C. style D. sound(48) A. in B. on C. over D. by(49) A. move B. engage C. make D. force(50) A. transform B. change C. make D. convert2000 BABDB CACDA CBDCD2001 BDDAB DBBCD AACAB2002 BADCA BDABC DADBA2003 CABAD CBDAA BCDDA2004 BADCA CBDBA CDBCD2005 AABAA CCABC BDBAD DDBCD2006 BCACB DACBD BDACB ACABD2008 CADBA CADAD CBDAB ADBCB2009 ABBDC ACDBC BADCB ADCBC2010 BACDB ADBAD BCBDA CBDAC。

介绍火星外观的英语作文英文回答：Mars, the fourth planet from the Sun, is a terrestrial world with a thin atmosphere and a rusty-red surface. It is often referred to as the "Red Planet" due to itsdistinctive hue, which is caused by iron oxide (rust) in the soil.Mars has two polar ice caps, composed primarily of water ice with a thin layer of carbon dioxide ice on top. The caps vary in size with the seasons, as the carbon dioxide ice sublimates and condenses.The planet's surface is heavily cratered, with numerous impact craters of various sizes visible from orbit. The largest known impact crater in the Solar System, Valles Marineris, is located on Mars. It is a vast canyon system that stretches for thousands of kilometers along the equator.Mars has a very thin atmosphere, composed primarily of carbon dioxide, nitrogen, and argon. The surface pressureis only about 6 millibars (0.087 psi), which is less than 1% of Earth's atmospheric pressure. The atmosphere is alsovery dusty, which contributes to the planet's red appearance.The climate on Mars is extremely harsh, with wide temperature fluctuations and frequent dust storms. The average surface temperature is -62°C (-80°F), but temperatures can range from -143°C (-225°F) at the polesto 20°C (68°F) at the equator du ring the summer.Mars has two small moons, Phobos and Deimos. They are irregularly shaped and are thought to be captured asteroids. Phobos is the larger of the two moons and orbits Mars every 7 hours. Deimos is smaller and orbits Mars every 30 hours.中文回答：火星是距离太阳第四近的行星，它是一个陆地世界，拥有稀薄的大气和锈红色的表面。

火星介绍英语作文100字英文回答：Mars, the fourth planet from the Sun, is a dusty, cold, desert world with a thin atmosphere. It is often referred to as the "Red Planet" because of its reddish hue, which is caused by iron oxide on its surface. Mars is about half the size of Earth and has a mass that is about 10% of Earth's. The planet has two small moons, Phobos and Deimos, which are thought to be captured asteroids.Mars has a surface that is covered with craters, volcanoes, and canyons. The largest volcano in the solar system, Olympus Mons, is located on Mars. The planet also has a deep canyon system, Valles Marineris, which is larger than the Grand Canyon on Earth.The atmosphere of Mars is very thin and composed mostly of carbon dioxide. The planet's surface temperature ranges from -153 degrees Celsius (-243 degrees Fahrenheit) at thepoles to 20 degrees Celsius (68 degrees Fahrenheit) at the equator. Mars has a very cold and dry climate, with no liquid water on its surface.Mars has been explored by numerous spacecraft,including the Viking landers, which landed on the planet in the 1970s. The Mars Exploration Rovers, Spirit and Opportunity, landed on Mars in 2004 and explored theplanet's surface for several years. The Curiosity rover, which landed on Mars in 2012, is still exploring the planet today.Mars is a fascinating planet that has been the subject of much scientific research. The planet is a potential target for future human exploration, and it is hoped that one day we will be able to send astronauts to Mars to explore its surface and search for signs of life.中文回答：火星是太阳系的第四颗行星，它是一个尘埃弥漫、寒冷、荒芜的沙漠世界，大气层很稀薄。

The Causes of Rising Surface Temperatures The Earth's surface temperature is a critical indicator of the planet's overall health and stability. In recent decades, however, this temperature has been steadily increasing, leading to a range of environmental and ecological concerns. The causes of this temperature rise are complex and multifaceted, involving natural phenomena as well as anthropogenic activities.One of the primary natural causes of rising surface temperatures is the natural cycle of solar radiation and the Earth's atmospheric composition. The sun's energy, which reaches the Earth's surface and is absorbed by its land, water, and atmosphere, is a fundamental driver of temperature changes. Variations in the Earth's orbit and the tilt of its axis can also influence the amount of solar radiation received, thereby affecting surface temperatures. However, the most significant contributor to the recent rise in surface temperatures is anthropogenic climate change. Human activities, particularly the burning offossil fuels and deforestation, have released vast quantities of greenhouse gases into the atmosphere. Thesegases, such as carbon dioxide and methane, trap heat within the atmosphere, preventing it from escaping into space.This process, known as the greenhouse effect, has causedthe Earth's temperature to rise significantly.Industrialization and the increasing use of fossilfuels for energy production have been the primary driversof greenhouse gas emissions. As demand for electricity, transportation, and other energy-intensive services has grown, so has the amount of carbon dioxide released intothe atmosphere. Additionally, deforestation has removedlarge areas of vegetation that once absorbed carbon dioxide, further exacerbating the greenhouse effect.The impact of rising surface temperatures is widespread and profound. It leads to changes in weather patterns, including more frequent and intense extreme weather events such as heatwaves, droughts, and floods. These events have devastating consequences for human communities, agriculture, and ecosystems. Rising temperatures also melt polar icecaps and glaciers, leading to sea level rise and the displacement of coastal communities.To address the issue of rising surface temperatures, it is crucial to take urgent action to mitigate climate change. This includes reducing greenhouse gas emissions bypromoting renewable energy sources, improving energy efficiency, and curbing deforestation. International cooperation and policies aimed at reducing emissions arealso essential to tackle this global challenge.In conclusion, the causes of rising surfacetemperatures are diverse and interconnected, with anthropogenic climate change playing a pivotal role. The impact of this temperature rise is already being feltacross the globe, and it is imperative that we take actionto mitigate its effects. By addressing the root causes of climate change and implementing sustainable practices, we can help protect the Earth's temperature and safeguard our planet's future.**地表温度上升的原因**地球表面温度是地球整体健康状况和稳定性的关键指标。

英语作文水的形态Water, the essence of life, is a remarkable substance that exists in three distinct forms: solid, liquid, and gas. These three states of water, known as the water cycle, are fundamental to the existence and sustenance of all living organisms on Earth.In its solid state, water is known as ice, a crystalline structure that forms when the temperature drops below the freezing point of 0 degrees Celsius (32 degrees Fahrenheit). Ice is a vital component of the Earth's cryosphere, which includes glaciers, icebergs, and polar ice caps. These frozen water reservoirs play a crucial role in regulating the global climate, reflecting sunlight, and providing a habitat for a diverse array of cold-adapted species.As the temperature rises, ice begins to melt, transitioning into the liquid state of water. In its liquid form, water is the most abundant substance on Earth, covering approximately 71% of the planet's surface. Liquid water is essential for the survival of all living organisms, serving as a medium for various chemical reactions, a means of transportation, and a vital resource for drinking, agriculture, and industrial processes.The liquid state of water is also responsible for the dynamic and ever-changing nature of the Earth's surface. Oceans, rivers, and lakes are constantly in motion, driven by the forces of wind, gravity, and temperature differences. These movements of water, known as currents, play a crucial role in the distribution of heat, nutrients, and life throughout the planet.When the temperature rises further, liquid water transforms into the gaseous state, known as water vapor or steam. This transition occurs when the kinetic energy of the water molecules overcomes the intermolecular forces that hold them together in the liquid state. Water vapor is an essential component of the Earth's atmosphere, where it plays a vital role in the water cycle, contributing to the formation of clouds and precipitation.The water cycle is a continuous process that involves the constant transformation of water between its three states. This cycle is driven by the Sun's energy, which evaporates water from the Earth's surface, transports it through the atmosphere, and eventually condenses it back into liquid or solid form, resulting in precipitation. This perpetual cycle ensures the continuous replenishment of water resources, sustaining life on our planet.The unique properties of water, such as its high specific heat capacity, latent heat of vaporization, and polarity, contribute to its crucial rolein regulating the Earth's climate and supporting a diverse range of ecosystems. Water's ability to dissolve a wide range of substances also makes it an essential medium for various biological, chemical, and industrial processes.In conclusion, the three states of water – solid, liquid, and gas – are fundamental to the existence and functioning of life on Earth. The dynamic and ever-changing nature of water, as it cycles through its various forms, is a testament to the remarkable adaptability and resilience of this vital resource. Understanding and preserving the delicate balance of the water cycle is crucial for the sustainability of our planet and the well-being of all living organisms.。

全球变暖英文作文带翻译英文：Global warming is a serious issue that affects the entire planet. It refers to the gradual increase in the Earth's surface temperature caused by human activities such as burning fossil fuels, deforestation, and industrial processes. The rise in temperature has led to a series of devastating consequences such as melting ice caps, rising sea levels, and extreme weather events.The impact of global warming can be seen all around us. For example, the Arctic sea ice is melting at an alarming rate, which not only affects the habitat of polar bears but also contributes to rising sea levels. In addition, extreme weather events such as hurricanes, floods, and droughts are becoming more frequent and severe, causing damage to infrastructure, agriculture, and human lives.It is important that we take action to address thisissue. One way to do this is by reducing our carbon footprint, such as by using public transportation, reducing energy consumption, and supporting renewable energy. Another way is to raise awareness about global warming and its consequences, so that more people will take action to mitigate its effects.中文：全球变暖是一个严重的问题，影响整个地球。

温室效应英语作文英文回答：The greenhouse effect is a phenomenon that warms the planet's surface by trapping heat in the atmosphere. It occurs when certain gases, known as greenhouse gases (GHGs), allow sunlight to pass through but absorb and emit some of the infrared radiation emitted from Earth's surface. This leads to a gradual increase in the temperature of the atmosphere and the planet as a whole.The primary greenhouse gases include carbon dioxide (CO2), methane (CH4), nitrous oxide (N2O), and fluorinated gases (F-gases). These gases are released into the atmosphere through both natural processes and human activities. For instance, CO2 is released when fossil fuels are burned for energy, while CH4 is emitted from sources such as landfills and livestock.The greenhouse effect is a natural phenomenon that hasexisted for billions of years. It is responsible for maintaining the Earth's surface temperature at a habitable level. However, human activities have significantly increased the concentration of greenhouse gases in the atmosphere since the pre-industrial era. This has led to an enhanced greenhouse effect, resulting in global warming and climate change.The impacts of climate change are already being felt around the world. These include rising sea levels, more frequent and intense heat waves, droughts, floods, and wildfires. Climate change also poses risks to human health, such as heat-related illnesses, respiratory problems, and the spread of infectious diseases.To mitigate climate change and reduce the risks associated with it, it is essential to reduce greenhouse gas emissions. This can be achieved through a combination of measures, including transitioning to renewable energy sources, improving energy efficiency, reducing deforestation, and implementing sustainable land-use practices.中文回答：温室效应。