问题 填空题

奔腾芯片采用的流水线技术主要是______和超流水技术。

答案

参考答案:超标量技术

解析:[知识点] 奔腾芯片的技术特点 [评析] 奔腾芯片采用的流水线技术主要是超标量技术和超流水线技术。超标量技术通过内置多条流水线来同时执行多个处理,其实质是以空间换取时间。超流水线技术是通过细化流水、提高主频,使得在一个机器周期内完成一个甚至多个操作,其实质是以时间换取空间。

阅读理解

Every year thousands of tourists visit Pompeii, Italy. They see the sights that Pompeii is famous for ― its stadium (露天大型运动场) and theatres, its shops and restaurants. The tourists do not, however, see Pompeii’s people. They do not see them because Pompeii has no people. No one has lived in Pompeii for almost 2000 years. Once, Pompeii was a busy city of 22000 people. It lay at the foot of Mount Vesuvius, a grass-covered volcano . Mount Vesuvius had not erupted for centuries, so the people of Pompeii felt safe. But they were not.

In August of AD 79, Mount Vesuvius erupted. The entire top of the mountain exploded, and a huge black cloud rose into the air. Soon stones and hot ash began to fall on Pompeii. When the eruption ended two days later, Pompeii was buried under 20 feet of stones and ashes. Almost all of its people were dead.

For centuries, Pompeii lay buried under stone and ash. Then, in the year 1861, an Italian scientist named Ginseppe began to uncover Pompeii. Slowly, carefully, Ginseppe and his men dug. The city looked almost the same as it had looked in AD 79. There were streets and fountains(喷泉), houses and shops. There was a stadium with 20000 seats. Perhaps the most important of all, there were everyday objects, which tell us a great deal about the people who lived in Pompeii. Many glasses and jars had some dark blue colour in the bottom, so we know that the people of Pompeii liked wine. They liked bread, too; metal bread pans were in every bakery. In one bakery there were 81 round, flat loaves of bread ― a type of bread that is still sold in Italy today. Tiny boxes filled with a dark, shiny powder tell us that women liked to wear eye makeup.

Ginseppe has died, but his work continues. One-fourth has not been uncovered yet. Scientists are still digging, still making discoveries that draw the tourists to Pompeii.

小题1:Why do large numbers of people come to Pompeii each year?

A.To visit the volcano

B.To shop and eat there

C.To watch sports and plays

D.To watch how Pompeiians lived小题2:Why had so many Pompeiians remained by volcanic Mount Vesuvius?

A.The city nearby offered all kinds of fun.

B.The area produced the finest wine in Italy.

C.Few people expected the volcano to erupt again.

D.The mountain was beautiful and covered with grass.小题3:Why did the city uncovered look almost the same as it had looked in AD 79?

A.Because Ginseppe and his men dug it slowly and carefully.

B.Because the city was buried alive and remained untouched.

C.Because scientists successfully rebuilt the city with everyday objects.

D.Because nobody had lived in the city ever since the volcano erupted.小题4:What do we know about the Pompeiians who lived 2000 years ago?

A.They lived more or less the same as Italians now do.

B.They liked women wearing all kinds of makeup.

C.They enjoyed a good life with drinking and eating.

D.They went back to Pompeii after the eruption in AD 79.

问答题 简答题