[题目]There are more than 5,000 students in the school.A. less than B. over C. just 题目和参考答案——青夏教育精英家教网—

题目内容

【题目】There are more than 5,000 students in the school.

A. less than B. over C. just

【答案】B

【解析】

试题分析：在学校里有5000多学生。more than多于，超过；A. less than少于；B. over超过；C. just只是，恰好。故选B。

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A. Yes, I’m B. Yes, you are

C. Yes, I am D. Yes, you’re

【题目】 —Mr. Wang, must I come again to clean the classroom on Sunday?

—No, you____ . I have asked Kate to do it.

A. can’t B. mustn’t C. needn’t D. shouldn’t

【题目】The police searching the shops on both sides of the street any possible clues.

A. are;for B. are;with C. is;for D. is;with

【题目】

Have you ever seen a car without a driver? It sounds crazy, but these computer-driven driverless cars will soon be filling roads near you. Companies like Google and Tesla have been designing and testing these cars, and the technology is there-they just need to see if they're value for money ,work out insurance（保险）issues, and run final tests to check they can run alongside human-driven cars on the road.

So how do they work? The cars have sensors all around which can detect other cars and obstacles in the road. Sensors on the wheels also help when parking, so the car knows how far it is from the outside of the road or other parked cars. Road signs are read by cameras and satellite navigation systems are used so the car knows how to get to your destination. All you have to do is type in the address! Finally, a central computer system takes in all the information it receives from the sensors and cameras and processes this to work out when to speed up, brake and go.

Sound like your idea of heaven? Sitting back, looking out of the windows and even watching a film or reading a book while 'driving' would be possible with this new technology. You wouldn't have to worry about remembering directions to where you're going. In addition, computers are generally more efficient drivers than humans. They would also drive more safely than people-they are not influenced by music or friends, they would obey the speed limit and they have quicker reaction times in case of an emergency.

However, there are many disadvantages of driverless cars. Computers would have difficulties making ethical（伦理学的）decisions ; if a child ran into the road , would the computer choose to hit the child or change the direction immediately and potentially kill the car's passengers? Moreover, I personally find driving fun-I'd miss never being behind the wheel myself. There would also be many legal decisions to be made-should children, or drunk people, be allowed in a driverless car by themselves? Or would there need to be a responsible adult with a driving licence in the car at all times?

Although being driven around by a machine would perhaps mean that no one needs a driving licence, saving money for everyone, many people would be put out of a job when driverless cars appear. Bus, taxi and train drivers as well as driving instructors would be made unnecessary.

I'm not convinced I'd want a driverless car-but it's only a matter of time before they'll become more affordable and commonplace on our roads.

【1】What does the second paragraph mainly tell us?

A.How driverless cars work.B.How a central computer system runs.

C.Ways in which the sensors help driverless cars.D.The helpful system that driverless cars have.

【2】What can we know from the passage?

A.The writer is eager to have a driverless car.

B.Some problems won't be solved in the future.

C.Engineers are active in improving driverless cars.

D.More factors should be considered before driverless cars go on roads.

【3】The underlined word "potentially" in Paragraph 4 means “___”

A.possiblyB.successfullyC.especiallyD.naturally

【4】Which of the following would be the best title for the passage?