Passage 2。 <br>Computers are already much smaller than they used to be. You can't go to an industry show these days without finding some company promoting its 'small footprint'. When you start talking about laptops, notebooks, and palmtops, the question becomes, 'How small is too small?' FAX capabilities are already available on board that you can plug into your computer. When you combine the technologies present in internal modems with voice recognition, the basics for having your computer replace your phone-voice line are in place. <br>Voice recognition is another technology that may appear limited in its present form, but it shows great promise for the future. Current voice-recognition systems can handle speaker-dependent continuous speech or speaker-independent discrete speech. <br>Speaking to your computer will be a major factor in the office of the future. In some locations, it is already a major factor in the office of today. Stock is traded in some brokerage houses by verbal command from the broker to the computer. So, you ask your computer a question, and it answers you—verbally. <br>48. Which of the following statements expresses the main idea of the passage? <br> 1. Computers will become smaller and smaller. <br> 2. Computers will be able to communicate with humans. <br> 3. Computers play a more important role in modern life. <br> 4. Computers are more useful than any other mechanical devices. <br>49. The first paragraph reveals all of the following EXCEPT __________. <br> 1. how computers are changing in size。 <br> 2. how fax machines work hand in hand with computers。 <br> 3. what devices computers may eventually replace。 <br> 4. what makes palmtops more popular than laptops and notebooks。 <br>50. The question "How small is too small?" (in the first paragraph) suggests that __________. <br> 1. small computers are sometimes inconvenient。 <br> 2. computers can become smaller than they are now。 <br> 3. in the future, laptops can be as small as palmtops。 <br> 4. companies put their small footprints on computers they sell。 <br><br>51. The word "promise" (in the second paragraph) can be best replacedby __________. <br> 1. prospect。 <br> 2. reputation。 <br>3. image。 <br>4. Reliability。 <br>52. The word "discrete" (in the second paragraph) __________. <br> 1. directly clarifies the phrase "speaker-dependent" <br> 2. directly clarifies the phrase "speaker-independent" <br> 3. is probably synonymous with the word "continuous" <br> 4. is probably an antonym of the word "continuous" <br>53. The passage implies that voice recognition systems ___________. <br> 1. are not efficient enough。 <br> 2. have no room for improvement。 <br> 3. work totally differently from telephones。 <br> 4. allow computers to follow humans' orders。 <br>54. The pronoun "it" (in the final paragraph) refers to __________. <br> 1. verbal command。 <br> 2. speaking to your computer。 <br> 3. the office of the future。 <br> 4. speaker-independent discrete speech。 <br>55. "Stock" is mentioned in the last paragraph __________. <br> 1. to suggest that brokers may have computers work for them。 <br> 2. to show an example of how com。 ...
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