This new model of car is so expensive that it...

This new model of car is so expensive that it is _____the reach of those with average

incomes.

A. over　　　　　　　 B. within

C. beyond　　　　　　 D. below

高三英语单项填空中等难度题查看答案及解析

This new model of car is so expensive that it is beyond the reach of those with ____ income.

高三英语单项填空中等难度题查看答案及解析

This new model of car is so expensive that it is ________ the reach of those with average incomes.

A. over                   B. within                C. beyond              D. below

高三英语单项填空中等难度题查看答案及解析

The basic design of the car is very similar to ________ of the earlier model.

A．that　 B．it　　 C．this　 D．one

高三英语单项填空中等难度题查看答案及解析

The basic design of the car is very similar to ________ of the earlier model.

A．that　     B．it

C．this　     D．one

高三英语单项填空中等难度题查看答案及解析

War is expensive and it is bloody. That is why America's Department of Defence wants to replace a third of its armed vehicles and weaponry with robots by2015. Such a change would save money, as robots can be much cheaper to replace than people. Just as importantly for the generals, it would make waging war less prey to the politics of body bags. Nobody mourns a robot.

The US military already routinely uses robotic aero planes known as unmanned aerial vehicles ( UAVs ). In November 2001 two missiles fared from a remote-controlled Predator UAV killed Mohammad Atef, al-Qaeda's chief of military operations and one of Osama bin Laden's most important associates, as he drove his car near Kabul. But whereas UAVs and their ground-based equivalents, such as the machinegun-toting Sword robots, are usually controlled by distant human operators, the Pentagon would like to give these robots increasing amounts of autonomy, including the ability to decide when to use lethal force.

To achieve this, Ronald Arkin of the Georgia Institute of Technology, in Atlanta, is developing a set of rules of engagement for battlefield robots to ensure that their use of lethal force follows the rules of ethics. In other words, he is trying to create an artificial conscience. Dr Arkin believes that there is another reason for putting robots into battle, which is that they have the potential to act more humanely than people. Stress does not affect a robot's judgment in the way it affects a soldier's.

His approach is to create what he calls a "multidimensional mathematical decision-space of possible behavior actions". Based on inputs ranging from radar data and current position to mission status and intelligence feeds, the system would divide the set of all possible actions into those that are ethical and those that are not. If, for example, the drone from which the fatal attack on Atef was launched had sensed that his car was overtaking a school bus, it might then have held fire.

There are comparisons to be drawn between Dr Arkin's work and the famous Three Laws of Robotics drawn up in the 1950s by Isaac Asimov, a science-fiction writer ,to govern robot behaviour. But whereas Asimov's laws were intended to prevent robots from harming people in any circumstances, Dr Arkin's are supposed to ensure only that they are not unethically killed.

This is an admirable goal in theory, but even if ethics can be neatly encoded into software, pitfalls remain. Although a completely rational robot might be unfazed by the chaos and confusion of the battlefield, it could still make mistakes. Surveillance and intelligence data can be wrong, and conditions and situations on the battlefield can change.

1.America’s military force wants to replace people with robots NOT because ________.

A.war cost a lot and it is bloody

B.people show sympathy for a person not a robot

C.. the armed vehicles and weapons are too expensive

D.the general would receive less criticism from the masses

2.Which of the following statements is True?

A.Atef was killed by two missiles fired from a remote-controlled manned aerial vehicle.

B.The department of force already uses UAVs with relatively high autonomy.

C.The study done by Dr. Arkin is similar to Three Laws of Robotics.

D.In Arkin’s opinion, a soldier’s judgment can be affected but robot’s won’t.

3.What’s the main idea of this article?

A.Ronald Arkin is developing a set of rules to increase autonomy.

B.Ronald Arkin is making efforts to create an artificial conscience.

C.Atef was precisely bombed by a remote-controlled Predator UVA.

D.There are comparisons between Dr. Arkin’s work and Three Laws of Robotics.

4.What’s the author’s attitude about Arkin’s approach?

A.His approach is an admirable goal and it can be realized.

B.Robot would fight without any mistakes in the battlefield.

C.Dr. Arkin’s approach is ethical and faultless.

D.Robots are not substitute for people in the battlefield.

高三英语阅读理解中等难度题查看答案及解析

The car factory has produced a new car of high quality; its only ________is that it uses a lot of petrol.

高三英语单项填空中等难度题查看答案及解析

--Have you heard of that? Tom recently bought a new car and an expensive flat.

--________? He even couldn’t have enough money to pay for the rent.

A. How about     B. Why not          C. How come        D. So what

高三英语单项填空中等难度题查看答案及解析

— Have you heard of that?Tom recently bought a new car and an expensive    flat.

— ________? He even couldn’t have enough money to pay for the rent.

高三英语单项填空中等难度题查看答案及解析

Look at the price of that bike! It is practically the same as ______ of a new motorcycle.

高三英语单项填空简单题查看答案及解析