单选题 The gap between what companies might be expected to pay in tax and what they actually pay amounts to billions of pounds--on that much, everyone can agree. The surprising truth is that no- one can agree how many billions are missing, or even how to define "tax gap". Estimates range from anything between ￡3bn to nearly ￡14bn, depending on who is doing the calculations. Even the people in charge of colleting the taxes--Her Majesty's Revenue and Customs (HMRC)--admit they have only the vaguest idea of how many further billions of pounds they could be getting.., and it took a freedom of information request before they would admit the extent of their lack of knowledge.
Any media organization or MP attempting to pursue the subject will find themselves hampered by the same difficulties faced by the tax collectors--secrecy and complexity. The Guardian 's investigation, which we publish over the coming two weeks, is no different.
The difficulty starts with an inability of anyone to agree a definition of "tax avoidance". It continues through the limited amount of information in the public domain. And it is further hampered by the extraordinary complexity of modern global corporations.
International companies based in the UK may have hundreds of subsidiary companies, which many use to take advantage of differing tax regimes as they move goods, services and intellectual property around the world. It is estimated that more than half of world trade consists of such movements (known as transfer-pricing) within corporations.
Companies are legally required publicly to declare these subsidiaries. But they generally tell shareholders of only the main subsidiaries. The Guardian's investigation found five major UK-based corporations which had ignored the requirements of the Companies Act by failing to identify offshore subsidiaries. This is just one example of the atmosphere of secrecy and non-disclosure in Britain which has allowed tax avoidance to flourish. The result is that few outside of the lucrative industries of banking, accountancy and tax law have understood the scale of the capital flight that is now taking place.
British tax inspectors privately describe as formidable the mountain outsiders have to climb in order to comb through the accounts of international companies based in London. "The companies hold all the cards," said one senior former tax inspector. "It's very difficult because you don't always know what you are looking for... You are confronted with delay, obstruction and a lot of whingeing from companies who complain about "unreasonable requests. Sometimes you are just piecing together a jigsaw. "
Another former senior tax inspector said. "One of the problems the Revenue has is that the company doesn't have to disclose the amount of tax actually paid in any year and the accounts won' t reveal the liability. Each company has its own method of accounting for tax: there's no uniform way of declaring it all. " For journalists trying to probe these murky waters, the problems are so substantial that few media organizations attempt it.
A trawl through the published accounts of even a single major group of companies can involve hunting around in the registers of several different countries. It takes a lot of time and a lot of money. Companies--with some far-sighted British exceptions--simply refuse to disclose any more than what appears in the published figures. The legal fiction that a public company is a "legal person", entitled to total tax secrecy and even to "human rights", makes it normally impossible for a journalist to penetrate the tax strategies of big business. HMRC refuse, far example, to identify the 12 major companies who used tax avoidance schemes to avoid paying any corporation tax whatever.
It is difficult to access experts to guide the media or MPs through this semantic jungle. The "Big Four" accountants and tax QCs who make a living out of tax avoidance, have no interest in helping outsiders understand their world. Few others have the necessary knowledge, and those that do, do not come cheap or may be conflicted. "Secrecy is the of shore world's great protector," writes William Brittan-Caitlin, London-based former Kroll investigator in his book, Offshore. "Government and states are generally at a loss to diagnose in detail what is really going on inside corporate internal markets. Corporations are extremely secretive about the special tax advantages these structures give them. /

单选题 According to the passage, the "tax gap" is ______
A. a well-defined term included in both British taxation system and the Companies Act
B. an accepted practice adopted by most international companies based in the UK
C. a practice difficult to define and discover but common with companies in Britain
D. the target which has been attacked by British tax inspectors over the past decades

单选题 It can be concluded that many international companies "move goods, services and intellectual property around the world" (para. 4)within corporations mainly in order______
A. to make use of different tax systems to avoid taxation
B. to give equal support to all the subsidiaries around the world
C. to expand the import and export trade with other countries
D. to raise their productivity and to maximize the profitability

单选题 When one former senior tax inspector comments that "Sometimes you are just piecing together a jigsaw "(para. 6), he most probably means that______.
A. investigating a company's accounts is the same as playing a children's game
B. the Revenue should reform its regulation to fight illegal "tax avoidance"
C. it's a complicated matter to investigate an international company's accounts
D. it's a diffident task to overcome the obstruction from the company's side

单选题 By using the expression "legal fiction"(para. 8) to describe today's status of a public company, the author is trying to imply that such a definition______.
A. is a humanitarian and legitimate definition protecting the rights of companies
B. is ridiculous, absurd and hinders the investigation of tax strategies of big companies
C. is an incorrect and inexact concept to reveal the nature of modern businesses
D. is a reflection of the reality of companies and corporations and should not be altered

单选题 In writing this article, the author is planning to tel1 all of the following to the readers EXCEPT that______.
A. the gap between what companies are expected to pay in tax and what they actually pay is too enormous to be neglected
B. secrecy and complexity are the two major protectors of international corporations in tax avoidance
C. there are loopholes in the legislation concerning companies which obstruct the practice of taxation
D. the government plans to investigate the "tax gap" and "tax avoidance" of international companies