问答题Directions:Studythefollowingcartooncarefullyandwriteanessayinwhichyoushould1)describethecartoon,2)interpretitsmeaning,and3)pointoutitsimplicationsinourlife.Youshouldwriteabout160～200wordsneatlyonANSWERSHEET2.

问答题AU

问答题The energy contained in rock within the earth's crust (地壳) represents a nearly unlimited energy source, but until recently commercial retrieval has been limited to underground hot water and/or steam recovery systems. These systems have been developed in areas of recent volcanic activity, where high rates of heat flow cause visible eruption of water in the form of geysers and hot springs. In other areas, however, hot rock also exists near the surface but there is insufficient water present to produce eruptive phenomena. Thus a potential hot dry rock (HDR) reservoir exists whenever the amount of spontaneously produced geothermal fluid has been judged inadequate for existing commercial systems. As a result of the recent energy crisis, new concepts for creating HDE recovery systems—which involve drilling holes and connecting them to artificial reservoirs placed deep within the crust—are being developed. (46) In all attempts to retrieve energy from HED's reservoir artificial stimulation will be required to create either sufficient permeability (渗透性) or bounded flow paths to facilitate the removal of heat by circulation of a fluid over the surface of the rock. (47) The HDR resource base is generally defined to include crustal rock that is hotter than 150℃, is at depths less than ten kilometers, and can be drilled with presently available equipment. Although wells deeper than ten kilometers are technically feasible, prevailing economic factors will obviously determine the commercial feasibility of wells at such depths. Rock temperatures as low as 100℃ may be useful for space heating; however, for producing electricity, temperatures greater than 200℃ are desirable. The geothermal gradient, which specifically determines the depth of drilling required to reach a desired temperature, is a major factor in the recoverability of geothermal (地热的) resources. (48) Temperature gradient (梯度) maps generated from oil and gas well temperature-depth records kept by the American Association of Petroleum Geologists suggest that tappable (可开发的) high-temperature gradients are distributed all across the United States. (There are many areas, however for which no temperature gradient records exist.) Indications are that the HDR resource base is very large. (49) If an average geothermal temperature gradient of 22℃ per kilometer of depth is used, a staggering 13,000,000 quadrillion B.T.U's of total energy are calculated to be contained in crustal rock to a ten kilometer depth in the United States. If we conservatively estimate that only about 0.2 percept is recoverable, we find a total that is comparable to the estimated resource base of all the coal remaining in the United States. (50) The remaining problem is to balance the economics of deeper, hotter, more costly wells and shallower, cooler, less expensive wells against the value of the final product, electricity and/or heat.

问答题如果我们离家远时下起雨来怎么办啊?

问答题当人们聚在一起的时候，无论做其他什么事情——不管是玩耍、争吵，交朋友，还是造汽车，他们都要说话。我们生活在一个语言的世界里。我们与朋友、同事交谈，与妻子、丈夫或情人交谈，与师长、父母或姻亲交谈，我们还和公车司机甚至是陌生人交谈。我们面对面交谈也会通过电话交谈，而每个人都用更多的语言回应。电视和广播则进一步助长了这种滔滔不绝的谈话现象。我们醒着的时候几乎没有一刻能离开语言。即使在梦中，我们也说话或听别人说话。在没人答话时，我们照样说话。我们中有些人在熟睡时大声说话，有时候我们与宠物说话，有时候还会自言自语。 拥有语言，或许比别的任何特征，更能把人类与其他动物区分开来。要了解人类，就得了解使我们成为人的语言的本质。根据许多民族的神话和宗教，语言才是人类生活和力量的源泉。对一些非洲人来说，一个新生的婴儿只是一件“东西”，还不是一个“人”。一个孩子只有通过学习才能成为人。因此，根据这一传统，我们都是因为至少掌握了一种语言才变成“人”的。

问答题红糖

问答题"Does Virtue Justify Corruption?"

问答题Why is Saussure hailed as the father of modern linguistics?

问答题Outline:1. Sources of water pollution2. Harm of water pollution3. Solutions

问答题Who is responsible for checking the goods discharged?

问答题{{B}}Directions:{{/B}} You are writing your first letter to a 'pen pal'. Describe your previous studies and work experience, your current activities, hobbies and interests. Tell your pen pal that you will be visiting his/her country during the summer vacation and suggest meeting him/her. You should write about 100 words on ANSWER SHEET 2. Do not sign your own name at the end of the letter. Use "Li Ming" instead. You do not need to write the address.

问答题What are the major concerns of the Prague School theory? (北航2008研)

问答题productivity (design feature of language)

问答题State about ONE of the two topics given below(minimally 200 words).The main features of generative linguistics.

问答题villanelle

问答题"Prophet!" said I, "thing of evil! —prophet still, if bird or devil!— Whether tempter sent, or whether tempest tossed thee here ashore, Desolate yet all undaunted, on this desert land enchanted— On this home by horror haunted—tell me truly, I implore— Is there - is there balm in Gilead ?—tell me—tell me, I implore!"

问答题The biggest price of the U.S. economy, by far, is the consumer sector. It represents 70% of GDP (国内生产总值) in most years. But consumers suffered historic setbacks in 2008 and 2009. According to a report, 13% of households experienced "substantial financial stress". This compares with only 1% during the previous two recessions. And it is why consumer spending fell so sharply in 2009, as frightened households cut back. It has taken years for total household finances to recover fully, but now they have. Total household net worth is now well above its 2007 peak, driven by the recovery in stock prices and home values. Household debt-to-income ratios are the lowest in more than 30 years. And the first half of 2014 has seen employment begin to take off and the unemployment rate has fallen. The overall outlook for consumer spending, the engine of the economy, is healthy again.

问答题{{B}}Directions:{{/B}}Writeanessayof160-200wordsbasedonthefollowingdrawing.Inyouressay,youshouldfirstdescribethedrawing,interpretitsmeaning,andstateyourownopiniononit.YoushouldwriteneatlyonANSW.ERSHEET2.(20points)

问答题 46. {{U}}The onrush of cheap communications, powerful computers and the Internet all explain why many people feel that, nowadays, change is happening ever more rapidly as technological progress accelerates.{{/U}} Moore's law, that the power of microchips doubles every 18 months, has been tested and found correct. This is what gives people the sense of a world shifting beneath their feet. 47. {{U}}Yet the implication that rapid change is a new phenomenon is again misleading. If you measure the time it takes for a technology to become widely diffused, today's experience does not seem unusual.{{/U}} Take the car. The basic patent for an internal combustion engine capable of powering a car was filed in 1877. By the late 1920s-50 years later-over half of all American households owned a car. 48. {{U}}The comparable dates for the computer are harder to tie down, but the first big computer, based on vacuum valves, was built in1946.{{/U}} The transistor-the first semiconductor device-was invented at Bell Laboratories in 1948. The first patent for an integrated circuit was filed in 1959. Now, in 1999-50 years after the first one was built-around half of American households own a computer. The pace of introduction has been similar to that of the car. 49. {{U}}You have to cheat, choosing only the date for the personal computer, say (mid1970s), or the Internet (ditto) to make it seem much more rapid.{{/U}} Comparing its diffusion among private users is, you might say, unfair to the computer, for that machine's main use is in businesses. On that measure, the best historical analogy is with electrification, and the spread of the electric dynamo into factories. 50. {{U}}According to Paul David, a historian at Stanford University in California, the first electricity-generating stations had been installed in New York and London in 1881, but it was well into the 1920s before the dynamo became widely used and started to raise productivity.{{/U}} The adoption of the computer in business has also been slow, and failed to have any measurable impact on productivity until very recently.

问答题Authors A. T. S. EliotB. William WordsworthC. Charles DickensD. Jonathan SwiftE. John MiltonF. Francis BaconG. Percy Bysshe ShelleyH. Robert FrostI. Mark TwainJ. William ShakespeareK. Emily DickinsonL. Ralph W. EmersonM. Henry Wadsworth Longfellow