[18:29.37]but viewers are also manipulated by the mass media. [18:33.18]As far as I am concerned,
[18:35.70]T.V. watchers are cut off from reality, [18:38.40]from nature, from other people, [18:40.08]from life itself ! ”
[18:41.78]I was confident in my ability to persuade. [18:45.53]After a short silence, my roommate said,
[18:48.63]“Anyway, I’ve been planning to watch the football game. [18:52.28]I am going to change the channel.” [18:54.21] “Don’t touch that dial!” I shouted,
[18:56.22]“I want to find out how the mystery turns out!” [18:59.31]I am not sure I got my point to cross. [19:03.52]Questions 33 to 35 are based on the passage [19:07.53]you have just heard.
[19:09.14]33. As the speaker walked into the living room, [19:13.62]what was being shown on T.V.?
[19:30.05]34. What does the speaker say about watching television? [19:48.04]35. What can we say about the speaker? [20:06.13]Section C
[20:07.68]Directions: In this section, [20:10.66]you will hear a passage three times. [20:12.87]When the passage is read for the first time,
[20:15.10]you should listen carefully for its general idea. [20:18.03]When the passage is read for the second time, [20:20.19]you are required to fill in the blanks [20:22.30]numbered from 36 to 43 with the exact words [20:25.66]you have just heard.
[20:27.36]For blanks numbered from 44 to 46
[20:30.09]you are required to fill in the missing information. [20:33.25]For these blanks,
[20:34.19]you can either use the exact words you have just heard [20:37.34]or write down the main points in your own words. [20:40.79]Finally, when the passage is read for the third time, [20:43.99]you should check what you have written. [20:46.35]Now listen to the passage. [20:49.23]In the past,
[20:50.42]one of the biggest disadvantages of machines [20:53.20]has been their inability to work on a micro-scale. [20:56.81]For example,
[20:58.00]doctors did not have devices allowing them
[21:00.37]to go inside the human body to detect health problems [21:04.55]or to perform delicate surgery.
[21:07.02]Repair crews did not have a way of identifying broken pipes
[21:11.32]located deep within a high-rise apartment building. [21:14.71]However, that’s about to change. [21:17.24]Advances in computers and biophysics [21:19.86]have started a microminiature revolution
[21:23.41]that allows scientists to envision—and in some cases [21:27.53]actually build—microscopic machines.
[21:30.88]These devices promise to dramatically change the way [21:34.42]we live and work.
[21:36.32]Micromachines already are making an impact. [21:40.13]At Case Western Reserve University in Cleveland, [21:43.47]Ohio, research scientists have designed a 4-inch silicon chip
[21:48.27]that holds 700 tiny primitive motors. [21:51.61]At Lucas NovaSensor in Fremont, California, [21:55.79]scientists have perfected
[21:56.99]the world’s first microscopic blood-pressure sensor. [22:01.01]Threaded through a person’s blood vessels, [22:03.52]the sensor can provide blood pressure readings [22:05.84]at the valve of the heart itself.
[22:08.82]Although simple versions of miniature devices have had an impact,
[22:13.46]advanced versions are still several years away.
[22:16.92]Auto manufacturers, for example, [22:19.29]are trying to use tiny devices that can sense [22:22.28]when to release an airbag and how to keep engines [22:25.58]and brakes operating efficiently. [22:28.21]Some futurists envision nanotechnology
[22:31.15]also being used to explore the deep sea in small submarines,
[22:36.46]or even to launch finger-sized rockets [22:39.16]packed with microminiature instruments.
[22:42.19]“There is an explosion of new ideas and applications.” [22:46.36]So, when scientists now think about future machines [22:49.56]doing large and complex tasks, [22:52.19]they’re thinking smaller than ever before. [22:56.26]Now the passage will be read again. [22:59.35]In the past,
[23:00.90]one of the biggest disadvantages of machines [23:03.59]has been their inability to work on a micro-scale. [23:07.51]For example,
[23:08.69]doctors did not have devices allowing them
[23:11.45]to go inside the human body to detect health problems [23:15.31]or to perform delicate surgery.
[23:18.20]Repair crews did not have a way of identifying broken
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