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考研英语真题答案解析,2014考研英语答案解析

试题 时间:2022-07-15

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Sample Three

  Directions:

  You are going to read a text about the introduction on how to pay in the future, followed by a list of examples. Choose the best example from the list A – F for each numbered subheading (41 - 45). There is one extra example which you do use. Mark your answer on ANSWER SHEET 1 (10 points)

  Smart cards and mobile phones are quickly emerging as ways to pay with electronic cash.

  41. A cash call.

  42. Sending money home

  43. Energising money

  44. How to pay in Tokyo

  45. Flashing the plastic

  [A] The various "contactless" payment systems rely on a technology called "near-field communication" (NFC). But mobile phones can be much smarter. They can be de-activated remotely; they have a screen which can show information, like a credit balance and product information; they have a keyboard to enter information and they can communicate. This means they can also be used to authorise larger payments by entering PIN codes directly on the handset or topped up with stored credit from an online bank account without having to go to an ATM.

  [B] A decade ago some observers predicted that internet banking would render retail banking from high-street branches obsolete. But JPMorgan, Bank of America and others are adamant that people are nowadays using bank branches more than ever. Even if the phone and the smart card replace cash, who gets to collect the fees remains open to contention.

  [C] More banking services are also being offered on mobiles. On February 12th, 19 telephone operators with networks in over 100 countries said that people would be able to use their handsets to send money abroad. MasterCard will operate the system in which remittances will be sent as text messages. Sir John Bond, formerly chairman of the HSBC banking group and now chairman of Vodafone, has long been convinced that payments and mobiles would somehow converge. "Mobile phones have the ability to make a dramatic change to village life in Africa," he says.

  [D] Unlike the Japanese, Americans prefer to use plastic for their purchases. Cards account for more than half of all transactions, up from 29% a decade ago, according to Nilson Report. More than 1.5 billion credit cards are stuffed into Americans"" wallets. The average household has more than ten. Banks and credit-card firms hope to convert more cash and cheque payments to plastic with new smart cards. Some versions are already very successful. Many Americans use EasyPass, in which drivers pay for highway tolls wirelessly.

  [E] Nowadays, some of the hottest nightclubs have a new trick for checking the identity of their VIP guests: they send an entry pass in the form of a super bar code to their mobile phones. Mobile phones are becoming an increasingly popular way to make all sorts of payments. In America fans of the Atlanta Hawks have been testing specially adapted Nokia handsets linked to their Visa cards to enter their local stadium and to buy refreshments. It reckons worldwide payments using mobile phones will climb from just $ 3.2 billion in 2003 to more than $ 37 billion by 2008.

  [F]To see the potential of mobile-phone money, start in Japan. Most Japanese have at least one credit card, but they tend to stay in their owners"" pockets. Housewives routinely peel off crisp YI0 000 ($ 82) notes to pay for their shopping. Utility bills and other invoices are dutifully taken to the bank and paid in cash, or more likely these days at the local convenience store. Yet despite the popularity of cash, the mobile phone is starting to change even Japan""s traditional habits."

  Sample Four

  Directions:

  You are going to read a list of headings and a text about AIDS. Choose the most suitable heading from the list A-F for each numbered paragraph (41-45). There is one extra heading which you do not need to use. Mark your answers on ANSWER SHEET 1. (10 points)

   [A] What route does HIV take after it enters the body to destroy the immune system?

  [B] How and when did the long-standing belief concerning AIDS and HIV crop up?

  [C] What is the most effective anti-HIV therapy?

  [D] How does HIV subvert the immune system?

  [E] In the absence of a vaccine, how can HIV be stopped?

  [F] Why does AIDS predispose infected persons to certain types of cancer and infections?

  In the 20 years since the first cases of AIDS were detected, scientists say they have learned more about this viral disease than any other.

  Yet Peter Piot, who directs the United Nations AIDS program, and Stefano Vella of Rome, president of the International AIDS Society, and other experts say reviewing unanswered questions could prove useful as a measure of progress for AIDS and other diseases.

  41.________

  Among the important broader scientific questions that remain:

  A long-standing belief is that cancer cells constantly develop and are held in check by a healthy immune system. But AIDS has challenged that belief. People with AIDS are much more prone to certain cancers like non-Hodgkins lymphomas and Kaposi""s sarcoms, but not to breast, colon and lung, the most common cancers in the United States. This pattern suggests that an impaired immune system, at least the type that occurs in AIDS, does not allow common cancers to develop.

  42.________

  When HIV is transmitted sexually, the virus must cross a tissue barrier to enter the body. How that happens is still unclear. The virus might invade directly or be carried by a series of different kinds of cells.

  43.________

  Eventually HIV travels through lymph vessels to lymph nodes and the rest of the lymph system. But what is not known is how the virus proceeds to destroy the body""s CD-4 cells that are needed to combat invading infectious agents.

  44.________

  Although HIV kills the immune c eils sent to kill the virus, there is widespread variation in the rate at which HIV infected people become ill with AIDS. So scientists ask: Can the elements of the immune system responsible for that variability be identified? If so, can they be used to stop progression to AIDS in infected individuals and possibly prevent infection in the first place?

  In theory, early treatment should offer the best chance of preserving immune function. But the new drugs do not completely eliminate HIV from the body so the medicines, which can have dangerous side effects, will have to be taken for a lifetime and perhaps changed to combat resistance. The new policy is expected to recommend that treatment be deferred until there are signs the immune system is weakening.

  Is a vaccine possible?

  45.________

  There is little question that an effective vaccine is crucial to controlling the epidemic. Yet only one has reached the stage of full testing, and there is wide controversy over the degree of protection it will provide. HIV strains that are transmitted in various areas of the world differ genetically. It is not known whether a vaccine derived from one type of HIV will confer protection against other types.

  Without more incisive, focused behavioral research, prevention messages alone will not put an end to the global epidemic.

  Part C

  Directions:

  Read the following text carefully and then translate the underlines segments into Chinese. Your translation should be written clearly on ANSWER SHEET 2.

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