英语四级考试真题听力答案及解析听写填空(下载听力原文)

　　2013年12月英语四级听力填空部分：

　　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。

　　Many college students today own personal computer that cost anywhere from $1,000 to perhaps %5,000 or more. _________, it is not uncommon for them to purchase _________costing another several hundred dollars. Twenty years ago, computers were ___________, but they were very large and extremely expensive. Few, if any, __________ purchased computers for home use. Over the years, the price ofthe guts of a computer---its memoryhas declined to less than a thousandth of the price per unit of memory that prevailed twenty years ago. This is the main reason why computers cost so much less today than they used to. Moreover, _________improvements have made it possible to ___________memory circuitry that is small enough to fit into the portable personal computers that many of us own and use. ___________, as the price of computation has declined the average consumer and business have spent more on purchasing computers. ___________,improved agricultural technology, hybrid seeds,_________animal breeding, and so on have vastly increased the amount of output a typical farmer can produce. The prices of goods such as meats and grains have fallen sharply relative to the prices of most other goods and services. As agricultural prices have fallen, many households have decreased their total expenses on food. Even though the ______________of a product purchased generally increases when its price falls, total expenses on it may decline.

　　2013年12月英语四级听力填空原文：

　　Many college students today own personal computer that cost anywhere from $1,000 to perhaps %5,000 or more. In addition, it is not uncommon for them to purchase software costing another several hundred dollars. Twenty years ago, computers were available, but they were very large and extremely expensive. Few, if any,individuals purchased computers for home use. Over the years, the price ofthe guts of a computer---its memoryhas declined to less than a thousandth of the price per unit of memory that prevailed twenty years ago. This is the main reason why computers cost so much less today than they used to. Moreover, technological improvements have made it possible to manufacture memory circuitry that is small enough to fit into the portable personal computers that many of us own and use.In short , as the price of computation has declined the average consumer and business have spent more on purchasing computers. By contrast ,improved agricultural technology, hybrid seeds, scientific animal breeding, and so on have vastly increased the amount of output a typical farmer can produce. The prices of goods such as meats and grains have fallen sharply relative to the prices of most other goods and services. As agricultural prices have fallen, many households have decreased their total expenses on food. Even though the quantity of a product purchased generally increases when its price falls, total expenses on it may decline.

　　参考答案

　　26.In addition

　　2013年12月四级听力听写解析：语义推断题。句子主干结构完整，此处填 入衣示递进关系的单同或短语。结合录音填入In addition，意力此外。

　　27.software

　　2013年12月四级听力听写解析：句意推断题。结合空格前的purchase可知，此处应填人名词作宾语。结合录音填入software，意为软件。

　　28.available

　　2013年12月四级听力听写解析：句意推断题。此处应该填入形容词，与were构成系表结构。结合录音填入available,意为可用的，可得到的。

　　29.individuals

　　2013年12月四级听力听写解析：句意推断题。此处应该填入名词形式作主语。结合录音填入individuals，意为个人。

　　30.technological

　　2013年12月四级听力听写解析：修饰关系题。此处应该填入形容词，修饰名词improvements。结合录音填入technological,意为技术的。

　　31.manufacture

　　2013年12月四级听力听写解析：句意推断题。结合空格前的to可知，此处应该填入动词形式。结合录音填入manufacture, 意为生产。

　　32.In short

　　2013年12月四级听力听写解析：语境推断题。句子主干结构完整，此处应该填人具有总结意义的单词或短语。结合录音填入 In short,意为简而言之。

　　33.By contrast

　　2013年12月四级听力听写解析：语义推断题。句子主干结构完整，此处应该填人具有承上启下意义的单词或短语。结合录音填入By contrast,意为比较而言。

　　34.scientific

　　2013年12月四级听力听写解析：并列关系题。此处应该填人形容词，修饰名词短语animal breeding。结合录音填入scientific,意为科学的。

　　35.quantity

　　2013年12月四级听力听写解析：句意推断题。结合空格后的of a product推测，此处应该填入名词构成常用搭配。结合录音填入quantity,意为数量。