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Section C
Directions: In this section, you will hear a passage three times. When the passage is read for the first time，you should listen carefully for its general idea.When the passage is read for the second time，you are required to fill in the blanks with the exact words you have just heard. Finally，when the passage is read for the third time，you should check what you have written.
注意：此部分试题请在答题卡1上作答。
Manycollege students today own personal computer that cost anywhere from $1,000 toperhaps %5,000 or more. (26)_________, it is not uncommon for them to purchase(27)_________costing another several hundred dollars. Twenty years ago,computers were (28) ___________, but they were very large and extremelyexpensive. Few, if any,(29) __________ purchased computers for home use. Overthe years, the price of the “guts” of a computer---its memory—has declined toless than a thousandth of the price per unit of memory that prevailed twentyyears ago. This is the main reason why computers cost so much less today than theyused to. Moreover, (30) _________improvements have made it possible to (31)___________memory circuitry that is small enough to fit into the portablepersonal computers that many of us own and use. (32)___________, as the priceof computation has declined the average consumer and business have spent moreon purchasing computers.
(33)___________,improved agricultural technology, hybrid(杂交) seeds,(34)_________animalbreeding, and so on have vastly increased the amount of output a typical farmercan produce. The prices of goods such as meats and grains have fallen sharplyrelative to the prices of most other goods and services. As agricultural priceshave fallen, many households have decreased their total expenses on food. Eventhough the (35)______________of a product purchased generally increases whenits price falls, total expenses on it may decline.
