题目内容

Iran, _______ world’s fifth biggest oil exporter, says it only wants nuclear plants to produce _______ electricity.

A. the; 不填 B. the; a

C. a; 不填 D. a; a

 

A

【解析】

试题分析:句意:全球第五大石油输出国伊朗声明开发核电站只为发展电力事业。第一个空格特指Iran,又在序数词fifth前面,故用定冠词the;第二个空格后“electricity”意为“电力”,是不可数名词,前不加冠词,故不填。故选A。

考点:考查冠词用法。

 

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People in several American states may be surprised to see cars on city streets without a driver. Experimental driverless vehicles now are legal in Florida, Nevada and California. They are pointing the way to a future that is not far down the road. The high-tech company Google has a number of self-driving cars, which had covered 480,000 kilometers by August. Volvo is among the companies doing road tests and says it plans to sell driverless cars by 2020.

In September, California Governor Jerry Brown signed an act to allow autonomous vehicles on the roads of his state. “Today we're looking at science fiction becoming tomorrow's reality-the driverless car.”The technology for these cars includes cameras, radar and motion sensors. The systems have been improved through competitions sponsored by the U. S. government agency DARPA. Engineer Richard Mason of the Rand Corporation helped design driverless vehicles for DARPA challenge races.

Cars have become much more fuel-efficient, and new electronic features are making Hondas safer, said Angie Nucci of Honda America. “A camera on the passenger-side mirror actually engaged on your guiding screen so you can safely change lanes.” Other safety features include warning systems on the front and the sides of the cars. The systems help drivers, but don't replace them. Curator Leslie Kendall of the Petersen Automotive Museum said autonomous cars will make the high ways safer.

“By taking out drivers, you also remove most risks of an accident,” Kendall said. He said consumers, however, may be unwilling to lose control. “It may take them time to come to realize that the technology is indeed reliable, but it will have to prove itself first.”

Mason said the technology already works and the biggest challenge now is getting down the cost for driverless vehicles from hundreds of thousands of dollars to something more affordable. He said this will happen as the technology is improved.

1.What can we learn from Paragraph 1?

A. Driverless vehicles are now legal in the whole USA.

B. Volvo will be the first to sell driverless cars.

C. Google’s self-driving cars have covered a long distance.

D. Driverless cars are pointing us a faraway future.

2.We learn that Governor of California Jerry Brown_________.

A. helped design self-driving cars.

B. supports self-driving cars on roads.

C. considers self-driving cars science fiction.

D. improved the self-driving car systems.

3.According to Richard Mason, what is the biggest challenge for driverless cars?

A. They are now too expensive for consumers.

B. Their technical problems remain to be solved.

C. They are not allowed to run on the road.

D. They are more dangerous for people on the street.

4.What's the best title of the passage?

A. The benefits of the self-driving cars.

B. The biggest challenge of the self-driving cars.

C. Self-driving cars-science fiction future is near.

D. Safer or more dangerous-self-driving cars.

 

It remains a curiosity and a bit of a historical mystery why we don't all drive on the same side of the road. The fact is that most people are right-handed; that's why, for much of history, drivers have stuck to the left. Ancient Romans using two-wheeled carriages are believed to have held the reins(缰绳) with their right hands and a whip with their left; to avoid whipping the near drivers, they favored the left-hand side the road. It's also easier for right-handers to get on a horse from the left, so riders were attracted to that side to avoid the near traffic as they climbed on and off. Finally, knights(骑士) and the other drivers favored the left so they could do battle, if necessary, with their good hand.

So why does most of the world travel on the right side today? Theories differ, but there's no doubt Napoleon was a major influence. The French have used the right since the late 18th century. Some say that before the French Revolution, people in upper class drove their carriages on the left, forcing the peasantry to the right. During the violence, fearful rich people sought to mix with the peasantry by traveling on the right as well. Regardless of the origin, Napoleon brought right-hand traffic to the nations he conquered, including Russia, Switzerland and Germany. Hitler, in turn, ordered right-hand traffic in Czechoslovakia and Austria in the 1930s. Nations that escaped right-handed conquest, like Great Britain, kept their left-handed tradition.

1.Who had a major effect on “keep-right” traffic law?

A. Ancient Romans B. Hitler

C. Napoleon D. Austrians

2. What does the second paragraph mainly tell us?

A. Napoleon brought right-hand traffic to the nations he conquered.

B. Hitler ordered right-hand traffic in Austria.

C. Great Britain escaped right-handed conquest.

D. The reasons that most of the world drives on the right side.

3.What does the word peasantry in the last paragraph mean?

A. People in upper class.

B. Right-handers.

C. Drivers.

D. Poor people.

4. Apart from Great Britain, which country mentioned in the text keeps left-hand

traffic?

A. France B. Ancient Rome

C. Russia D. Germany

 

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