The ride-sharing company Uber has removed its self-driving cars from the streets of San Francisco,California. The action came after a dispute between Uber and state officials over whether the vehicles 题目和参考答案——青夏教育精英家教网—

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The ride-sharing company Uber has removed its self-driving cars from the streets of San Francisco,California. The action came after a dispute between Uber and state officials over whether the vehicles needed special permits to operate.

Uber recently launched testing of its self-driving service in San Francisco.But shortly after the launch, California's Department of Motor Vehicles (DMV) told the company to stop the self-driving vehicles.State officials said the Uber cars needed the same special permit given to about 20 other companies testing self-driving technology in California.Uber argued that its technology does not make vehicles fully autonomous,and so the special permit was not needed.It added that all of Uber's "self-driving" cars have a driver sitting in the passenger seat to take over if needed.

The head of Uber's self-driving technology,Anthony Levandowski,explained the company's position in a blog post.He said the self-driving Uber vehicles do use high-technology tools to assist drivers.But they are not fully autonomous and require a driver to be at the controls at all times..He compared the technology to solar carmaker Tesla's advanced driver assist tools.Telsa's Autopilot system allows its cars to steer in a lane,change lanes,and speed up or slow down based on nearby traffic.The company tells drivers that,when using Autopilot,they should still always be ready to take control of the vehicle.Vehicles equipped with these high-tech driver assist tools do not need a special permit to operate in California.

It's hard to understand why the DMV would seek to require self-driving Ubers to get permits when it accepts that Tesla's autopilot technology does not need them,"Levandowski wrote.San Francisco's mayor,Ed Lee,praised the DMV for stopping Uber's self-driving vehicles.He said he supports self-driving development and testing.But only under conditions that put human bicyclists' and pedestrian safety first."

1.What does the underlined word "dispute" in Paragraph 1 mean?

A. Discussion. B. Disagreement.

C. Fighting. D. Meeting.

2.Why does Uber say that the special permit was not needed?

A. Because Uber's "self driving" cars are fully autonomous.

B. Because there are passenger seats in Uber's "self-driving" cars.

C. Because no drivers are needed in some Uber's "self-driving" cars.

D. Because Uber's "self-driving" cars can be operated by humans when necessary.

3.What can we know from the passage?

A. Uber's self-driving cars need human drivers.

B. Telsa's Autopilot needs special permits too.

C. Uber's self-driving cars are completely autonomous.

D. Telsa's Autopilot system is better than Uber's self-driving technology.

4.What can we infer from Ed Lee's words?

A. He doesn't think DMV is right.

B. Uber's self-driving cars should he supported.

C. Uber's serf-driving cars are not safe enough.

D. One should be careful while walking or cycling in streets.

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C. They could only tell emotions on partial faces rather than on entire faces.

D. They found it hard to tell the moods on the faces of a different gender.

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The Great Wall of China is more than 6，000 kilometres long. It winds 1.________ (it) way from west to east, across deserts, over mountains, through valleys 2.________ at last it reaches the sea. The Great Wall has a history of over twenty centuries. The first part of it 3.________(build)during the Spring and Autumn period. During the Qin Dynasty, 4.________ (keep) the enemy out of his empire, Emperor Qin Shi Huang had all the walls 5._______ (join) up. Thus, the Great Wall came into being. The Great Wall is wide enough at 6.________ top for five horses or ten men to walk side by side. Along the wall are watchtowers, 7.________ soldiers used to keep watch. Fires were lit on the towers as a 8.________ (warn) when the enemy came.

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Our children and grandchildren may not have a chance to visit many of the most famous places around the world. War, weather, age, traffic and pollution damage these famous places. Looking after these places often costs more than one country can afford.

In the early 1970s, world governments decided that if they joined together, they would be able to preserve our history. If every country paid some money, they said, it would be possible to look after important historic places. Also, if they discovered that a monument needed urgent help, they would have money for repairs. For these reasons, countries around the world united to form the World Heritage Organization in 1972. Today, the organization helps to maintain and restore the most important places from our history.

However, one of the biggest problems for historic places is vandalism. People sometimes enter the sites and destroy or damage the buildings. At some sites, such as Stonehenge(巨石阵）in England, governments have built high fences to protect the site from vandals.

There are many different ideas about how to solve the problem of vandalism. Stone experts say that if guards patrolled the sites, vandals would not be able to get in. Some experts say that if they fixed more television cameras, they would not need so many guards. Other experts say that the best solution is education. If people learned to respect history, they would not destroy or damage it. They would also want to spend money looking after old places. For this reason, the World Heritage Organization helps to spread information about the value of historic sites.

1.Why did countries all over the world unite to form the World Heritage Organization?

A. It would be able to keep our history.

B. It would be possible to take care of important historic places.

C. They would have money to do some repairs if a monument needed help.

D. All of the above.

2.Which of the following shows us the action of vandalism?

A. People enter the sites and cause damage to the buildings

B. Governments build high fences to protect the site from vandals

C. Guards patrolled the sites and they fixed more television cameras

D. They collect as much money as they can to preserve the buildings

3.What’s the best way to solve the biggest problem of preserving our history?

A. Every country spends more money looking after these places

B. To form the World Heritage Organization

C. Too many guards are needed to prevent vandals getting in

D. To make people know more about the value of historic sites

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