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The students were supposed to ( )their assignment by now.

A.finish B.have finished C.finishing D.having finished
s="" geologic="" features.="" with="" the="" development="" of="" optomechanical="" scanner,="" scientists="" began="" to="" construct="" digital="" multispectral="" images="" using="" data="" beyond="" sensitivity="" range="" visible="" light="" photography.="" these="" are="" constructed="" by="" mechanically="" aligning="" pictorial="" representations="" such="" phenomena="" as="" reflection="" waves="" outside="" spectrum:="" refraction="" radio="" waves,="" and="" daily="" changes="" in="" temperature="" areas="" on="" earth's="" surface.="" imaging="" has="" now="" become="" basic="" tool="" remote="" sensing="" from="" satellites. The advantage of digital over photographic imaging is evident: the resulting numerical data are precisely known, and digital data are not subject to the vagaries of difficult-to-control chemical processing with digital processing, it is possible to combine a large number of spectral images. The acquisition of the first multispectral digital data set from, the multispectral scanner (MSS) aboard the satellite Landsat in 1972 consequently attracted the attention of the entire geologic community. Landsat MSS data are now being applied to a variety of geologic problems that are difficult to solve by conventional methods alone. These include specific problems in mineral and energy resource exploration and the charting of glaciers and shallow seas. A more fundamental application of remote sensing is to augment conventional methods for geologic mapping of large areas. Regional maps present compositional structural and chronological information for reconstructing geologic revolution. Such reconstructions have important practical applications because the conditions under which rock units and other structural features are formed influence the occurrence of ore and petroleum deposits and affect the thickness and integrity of the geologic media in which the deposits are found. Geologic maps incorporate a large, varied body of specific field and laboratory measurements, but the maps must be interpretative because field measurements are always limited by rock exposure, accessibility and labor resources. With remote-sensing techniques, it is possible to obtain much geologic information more efficiently than it can be obtained on the ground. These techniques also facilitate overall interpretation. Since detailed geologic mapping is generally conducted in small areas, the continuity of regional features that had intermittent and variable expressions is often not recognized, but in the comprehensive views of Landsat images these continuities are apparent. However, some critical information cannot be obtained through remote sensing, and several characteristics of the Landsat MSS impose limitations on the acquisition of diagnostic data. Some of these limitations can be overcome by designing satellite systems especially for geologic purposes; but to be most effective, remote sensing data must still be combined with data from field surveys, laboratory tests, and the techniques of the earlier twentieth century.

1.Which of the following can be measured by the optomechanical scanner but not by visible light photograph?

2.Lands images differ from conventional geologic maps in that the former( ) .3.The passage provides information about all of the following topics except ( ).4.What does the author mention about “the conventional methods”?5.According to the author( ) .


The term "remote sensing" refers to the techniques of measurement and interpretation of phenomena from a distance. Prior to the mid-1960s the interpretation of film images was the primary means for remote sensing of the earth's geologic features. With the development of the optomechanical scanner, scientists began to construct digital multispectral images using data beyond the sensitivity range of visible light photography. These images are constructed by mechanically aligning pictorial representations of such phenomena as the reflection of light waves outside th


It is useful to be able to predict the extent ( )which a price change will affect supply and demand.

A.from B.with C.to D.for
ve="" heard="" so="" far="" isn't="" encouraging="" republicans,="" including="" lott,="" say="" that="" "the="" time="" just="" isn’t="" right”="" for="" the="" deal.="" translation:="" we're="" determined="" to="" make="" it="" look="" as="" if="" clinton="" has="" capitulated="" chinese="" and="" is="" ignoring="" human,="" religious,="" labor="" rights="" violations;="" theft="" of="" nuclear-weapons="" technology;="" sale="" missile="" parts="" america's="" enemies.="" beijing's="" fierce="" critics="" within="" democratic="" party,="" such="" senator="" paul="" d.="" wellstone="" minnesota="" house="" minority="" leader="" richard="" a.="" gephardt="" missouri,="" won't="" help,="" either. Just how tough the lobbying job on Capitol Hill will be become clear on Apr. 20, when Rubin lectured 19chief executives on the need to discipline their Republican allies. With business and the White House still trading charges over who is responsible for the defeat of fast-track trade negotiating legislation in 1997, working together won't be easy. And Republicans-with a wink-say that they'll eventually embrace China's entry into the WTO as a favor to Corporate Amenity. Though not long before they torture Clinton. But Zhu is out on a limb, and if Congress overdoes the criticism, he may be forced by domestic critics to renege. Business must make this much dear to both its GOP allies and the White House: This historic deal is too important to risk losing to any more partisan squabbling. 1.The main idea of this passage is( ) .2.It can be inferred from the passage that ( ).3.What does the sentence "Also left in the lurch: Wall Street, Hollywood, Detroit" convey?4.Who plays the leading part in the deal in America?5.What was the attitude of the Republican Party toward China's entry into the WTO?
A. Contradictory B. Appreciative C. Disapproving. D. Detestful.'>

President Clinton’s decision on Apr. 8 to send Chinese Premier Zhu Rongji packing without an agreement on China’s entry into the World Trade Organization seemed to be a massive miscalculation. The President took a drubbing from much of the press, which had breathlessly reported that a deal was in the bag. The Cabinet and White House still appeared divided, and business leaders were characterized as furious over the lost opportunity. Zhu charged that Clinton lacked ‘the courage” to reach an accord. And when Clinton later telephoned the angry Zhu to pledge a renewed effort at negotiations, the gesture was widely portrayed as a flip-flop.In fact, Clinton made the right decision in holding out for a better WTO deal. A lot more horse trading is needed before a final agreement can be reached. And without the Administration’s goal of a “bullet-proof agreement” that business lobbyists can enthusiastically sell to a Republican Congress, the whole process will end up in partisan acrimony that could harm relations with China for years.THE HARD PART. Many business lobbyists, while disappointed that the deal was not closed, agree that better terms can still be had. And Treasury, Secretary Robert E. Rubin, National Economic Council Director Gene B. Spelling, Commerce Secretary William M. Daley, and top trade negotiator Charlene Barshefsky all advised Clinton that while the Chinese had made a remarkable number of concessions, “we’re not there yet,’’ according to senior officials.Negotiating with Zhu over the remaining issues may be the easy part. Although Clinton can signal U.S. approval for China’s entry into the WTO himself, he needs Congress to grant Beijing permanent most-favored-nation status as part of a broad trade accord. And the temptation for meddling on Capital Hill may prove over-whelming. Zhu had barely landed before Senate Majority Leader Trent Lott (R-Miss) declared himself skeptical that China deserved entry into the WTO. And Senator Jesse
A. Helms (R-N C) and Ernest F. Hollings (D-S. C ) promised to introduce a bill requiring congressional approval of any deal.The hidden message from these three textile-state Southerners: Get more protection for the U S. c


It’s (1)honor to meet you, Professor Nagai. I hope you (2)your stay inBeijing. Let me (3)if there’s anything I can do for you (4)you’re here.句意: 很荣幸见到您,Nagai教授。希望您在北京过的 愉快。你在这儿的期间如果有什么需要请告诉我。



Out of ( )revenge, he did his worst to blacken her character and ruin her reputation.

A.perfect B.total C.sheer D.integral

Although we tried to concentrate on the lecture, we were ( ) by the noise from the next room.

A.distracted B.displaced C.dispersed D.discarded
s,="" with="" only="" a="" temporary="" slump="" in="" the="" depression="" era.="" demand="" for="" iron,="" steel,="" coal,="" oil,="" gas,="" water,="" and="" food="" rocked="" ahead="" during="" these="" years,="" stimulated="" particularly="" by="" economic="" growth="" associated="" world="" war="" ii.="" 1970's="" industrial="" might="" of="" united="" states="" was="" an="" overpowering="" national="" global="" reality.="" six="" percent="" world's="" people,="" it="" consumes="" annually="" some="" thirty-five="" available="" resources,="" while="" generating="" proportionate="" burdens="" harmful="" wastes.="" americans="" have="" been="" proud="" their="" technical="" preeminence,="" 1950’s="" that="" persuasive="" environmental="" thinking="" began="" to="" remind="" them="" being="" superpower="" is="" mixed="" blessing="" profound="" ecological="" consequences.

1.The Americans have always believed that the United States ( ).

2.Progress in environmental protection in the United States would not have been possible if it had not been for ( ).

3.The author's attitude towards environmental laws and regulations in the United States is ( ).4.In paragraph 3, the author tries to account for ( )in the United States.

5.The last sentence of the passage means that ( ).


From the earliest decades of colonization to the 20th century, Americans have celebrated and largely taken for granted the seemingly endless bounty of their land. Not until the early twentieth century did a significant conservation movement develop before the prodding of professional resource managers like the forester Gifford Pinchot, and politicians like Theodore Roosevelt. The movement was a response to an evident dwindling of know mineral resources, the decimation of virgin forests, and a decline in the fish and game available to sportsmen. It was also an integral expression of the political movement known as progressivism, which stressed, among other things, the use of government power, guided by scientific knowledge and democratic principles, to solve national, social, and economic problems. The progressive conservationists pushed into existence a substantial body of legislation at state and national levels that aimed at the rational management of resources. For the most part, however, these laws had more form than substance, and in practice the exploitation of nature continued and largely unchecked.By the 1920’s progressivism had faded away, but its enthusiasm for scientific management and research remained active in the business community. Both the commitment to resource management research by industry and the allocation of funds to seek out untapped resources grew rapidly. Science and technology linked up more closely than before to devise means for their exploitation.The amalgam of science, technology, and business interests not only fostered the continued growth of older industries, but also spawned new industries that fostered economic expansion at great environmental cost. The development of electric power raised manufacturing productivity and the material standard of living, but also polluted the air through the combustion of fossil fuels in huge amounts. The spread of automotive transportation entailed mobility and productivity, but exacted the price of long-term environmental costs, voracious energy consumption, and expropriation of land for railways. The multifaceted petrochemical industry listed among its benefits better agricultural productivity from the use of chemical fertilizers and pesticides, but contributed heavily to air, water, and soil pollution. The aviation industry promoted mobility and cohesion within the nation and helped to end American isolation from the rest of the world, but promoted a new dimension of air and noise pollution, energy demands, and pressure on scarce land in urban areas for airports.American urbanization and industrialization continued to accelerate between World War I and the 1970's, with only a temporary slump in the depression era. Demand for iron, steel, coal, oil, gas,


The decision to call it quits by Mr. Grimm, of Staten Island ― perhaps best known for threatening to break a reporter in half and ( ) a Capitol Hill balcony — came after a conversation on Monday with the House speaker, John
A. Boehner, which a source close to the speaker confirmed.

A.throw him off B.throwing him into C.throwing himself off D.throw himself into

Ideas about education are changing in the United States. Education today is not just a high school diploma or a college degree. Many adults are not interested in going to college. They are interested in other kinds of learning. For them, learning does not end with a diploma.Continuing education gives these adults the opportunity to increase their knowledge about their own field or to learn about a new field. It also gives them a chance to improve their old skills or to learn new ones.Secretaries, mechanics, and barbers can take classes to improve their work skills. Nurses can take classes to increase their knowledge of nursing. If they know more or learn more, then they can get a better job or earn more money.Continuing education classes give some adults the chance to learn new skills. There is usually a large variety of classes to choose from, typing, foreign cooking, photography, auto repair, furniture repair, or swimming. These are only some of the classes available.Some adults take classes for fun or because the class will be useful for them. For example, they can choose a class in almost any language, Chinese, Spanish or English as a second language. There are classes in first aid or classes in sewing. There are also many other types of classes to choose from.Other adults take continuing education classes to improve their own lives because they want to feel better about themselves. Overweight people can find exercise classes or classes in nutrition. Others can learn how to be good parents, or how to get along with other people. There are many opportunities for adults to continue their learning. Almost any community college or public school system has a continuing education program. There are classes in schools, community buildings, or churches. Most classes are in the evening, so working people can attend. The classes are usually small, and they are inexpensive.Thousands of people register for continuing education classes each year. They receive no diploma or certificate, and no grade for most of the classes they attend. For them, learning is something they do because they want to.1.Lots of people attend continuing education classes because( ) .2.Some adults take lessons of typing or auto repair to ( ).3.What’s the main idea of Para.7?4.Attending continuing education classes( ) .5.We can learn from the passage that( ) .

A.they can also go to church at the same time B.there are many courses they can choose from C.learning is something they are interested in D.the classes will help them become more confident
A.get a college education B.learn new skills C.get a certificate D.earn grades
A.Adults can continue their learning. B.Classes are held for working people. C.Most continuing education classes are in the evening. D.Adults have many opportunities to continue their learning.
A.is expensive B.requires a loan C.is free of charge D.does not cost much money
A.adult education is very popular B.college education is not important C.others kinds of learning are more important than school learning D.continuing education classes teach the same courses that are taught in colleges
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