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This month, Germany’s transport minister...

    This month, Germany’s transport minister, Alexander Dobrindt, proposed the first set of rules for autonomous vehicles. They would define the driver’s role in such cars and govern how such cars perform in crashes where lives might be lost.

The proposal attempts to deal with what some call the “death valley” of autonomous vehicles: the grey area between semi-autonomous and fully driverless cars that could delay the driverless future.

Dobrindt wants three things: that a car always chooses property damage over personal injury; that it never distinguishes between humans based on age or race; and that if a human removes his or her hands from the driving wheel — to check email, say — the car’s maker is responsible if there is a crash.

“The change to the road traffic law will permit fully automatic driving,” says Dobrindt. It will put fully driverless cars on an equal legal footing to human drivers, he says.

Who is responsible for the operation of such vehicles is not clear among car makers, consumers and lawyers. “The liability issue is the biggest one of them all,” says Natasha Merat at the University of Leeds, UK.

An assumption behind UK insurance for driverless cars, introduced earlier this year, insists that a human “be watchful and monitoring the road” at every moment.

But that is not what many people have in mind when thinking of driverless cars. “When you say ‘driverless cars’, people expect driverless cars.” Merat says. “You know — no driver.”

Because of the confusion, Merat thinks some car makers will wait until vehicles can be fully automated without operation.

Driverless cars may end up being a form of public transport rather than vehicles you own, says Ryan Calo at Stanford University, California. That is happening in the UK and Singapore, where government-provided driverless vehicles are being launched.

That would go down poorly in the US, however. “The idea that the government would take over driverless cars and treat them as a public good would get absolutely nowhere here,” says Calo.

1.What does the phrase “death valley” in Paragraph 2 refer to?

A.A place where cars often break down.

B.A case where passing a law is impossible.

C.An area where no driving is permitted.

D.A situation where drivers’ role is not clear.

2.The proposal put forward by Dobrindt aims to _____ .

A.stop people from breaking traffic rules

B.help promote fully automatic driving

C.protect drivers of all ages and races

D.prevent serious property damage

3.What do consumers think of the operation of driverless cars?

A.It should get the attention of insurance companies.

B.It should be the main concern of law makers.

C.It should not cause deadly traffic accidents.

D.It should involve no human responsibility.

4.What could be the best title for the passage?

A.Autonomous Driving: Whose Liability?

B.Fully Automatic Cars: A New Breakthrough

C.Autonomous Vehicles: Driver Removed!

D.Driverless Cars: Root of Road Accidents

 

1.D 2.B 3.D 4.A 【解析】 本文是一篇说明文。从德国交通部长亚历山大·多布林特提出的第一套自动驾驶汽车规则入手,文章介绍了无人驾驶汽车运营中的责任划分问题。 1.词义猜测题。根据第一段中的They would define the driver’s role in such cars and govern how such cars perform in crashes where lives might be lost.可知,他们将定义司机在此类车辆中的角色,并管理此类车辆在可能造成人员伤亡的撞车事故中的表现;再根据第二段The proposal attempts to deal with what some call the “death valley” of autonomous vehicles: the grey area between semi-autonomous and fully driverless cars that could delay the driverless future.可知,该提案试图解决一些人所说的自动驾驶汽车的“死亡谷”:半自动驾驶汽车和完全无人驾驶汽车之间的灰色地带,这可能会推迟无人驾驶汽车的未来。由此可知,死亡谷指的就是在交通规则中驾驶员的责任划分不明确的情况,故D项正确。 2.细节理解题。根据第四段中的“The change to the road traffic law will permit fully automatic driving,” says Dobrindt.”可知,多布林特说:“道路交通法的修改将允许全自动驾驶”,由此可知,布林特的这项提议旨在帮助推动完全自动驾驶,故B项正确。 3.细节理解题。根据第六段An assumption behind UK insurance for driverless cars, introduced earlier this year, insists that a human “be watchful and monitoring the road” at every moment.可知,今年早些时候,英国推出了一项针对无人驾驶汽车的保险设想,该设想坚持让人类时刻保持警惕,监控道路状况,再结合第七段But that is not what many people have in mind when thinking of driverless cars. “When you say ‘driverless cars’, people expect driverless cars.” Merat says. “You know — no driver.”可知,但这并不是很多人在考虑无人驾驶汽车时所想的。“当你提到无人驾驶汽车,人们期待无人驾驶汽车,”梅拉特说,“你知道——没有司机。”由此可知,消费者认为无人驾驶汽车的操作不应该涉及人的责任,故D项正确。 4.主旨大意题。通读全文,特别是根据第五段中的Who is responsible for the operation of such vehicles is not clear among car makers, consumers and lawyers. “The liability issue is the biggest one of them all”可知,在汽车制造商、消费者和律师中,谁来负责无人驾驶汽车的运营还不明确,责任问题是最大问题之一,由此可知本文主要介绍的是无人驾驶汽车运营中的责任划分问题,故A项(自主驾驶——谁来负责?)适合做本文最佳标题。故选A。
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    If you think about the countless number of animal species on our planet, the giraffe is perhaps one of the most interesting. With its unusual pattern and incredibly long neck, it looks like no other animal on Earth. But how did this mammal come to get its famously huge neck? Well, scientists have been asking themselves this question for centuries.

The most commonly believed answer is that the massive neck — which measures on average 180 centimeters and weighs about 270 kilograms — evolved to allow the animal to reach the leaves of tall trees.

British scientist Charles Darwin was one of the first people to propose this idea in the 1800s.“The giraffe… has its whole frame beautifully adapted for browsing on the higher branches of trees,”he wrote in his famous 1859 book On the Origin of Species. It was Darwin’s belief that the giraffe once had a much shorter neck, but over time, evolution led to longer-necked giraffes being born, which in turn survived as they were able to reach the food that others couldn’t. Yet, there are other theories. According to a paper published in September in the Journal of Arid Environments, the giraffe’s neck evolved to increase its surface-area-to-volume ratio. Because the animal’s neck increases its body’s surface area, it makes it easier for it to keep cool, the paper’s authors wrote. This phenomenon can be seen everywhere in nature, and even in engineering.

For example, this is why elephants have such large ears, and why radiators (暖气片) in homes are flat and thin, as a large surface area allows heat to escape quicker.

Meanwhile, some believe that competition is the answer. A 1996 study by two South African zoologists argued that the male giraffes with the biggest necks are the ones who “win” access to females to reproduce, as they are better at fighting, meaning that their long necks are passed down through the generations. So, it seems like there’s still no definite answer to the question. But until we find the truth, we should at least enjoy this beautiful and interesting creature for what it is today, rather than wonder about where it came from.

1.What idea did Charles Darwin put forward in his book?

A.Giraffe’s necks are 180 cm long and weigh 270 kg on average.

B.Giraffes with a long neck are better at fighting.

C.Giraffes are a species that is born with a long neck.

D.Longer-necked giraffes are able to survive better.

2.What is the article mainly about?

A.Charles Darwin’s theory of evolution.

B.Different functions of the giraffe’s long neck.

C.How the giraffe manages to survive in nature.

D.Theories about why the giraffe has a huge neck.

 

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This article is for all of the teenagers out there. Even though ____ you are years from being fully grown, society regularly expects you to adult. Yes, you are ____ in many ways: many of you drive and do so quite safely, and you handle schedules that would ____ many adults. But you probably cannot process caffeine (咖啡因) as constantly as your parents can because of your still-growing bodies and brains.

I understand it feels grown-up to be drinking a cup of Starbucks. But all of this caffeine may worsen your anxiety, affect tonight’s sleep and tomorrow’s school performance, ____ nutrient absorption and even cause real trouble when mixed with alcohol. The following four aspects may well ____ the theme of this article.

The power of caffeine

Caffeine is widely considered a drug that is socially acceptable, universally used, even cool, but it still causes ____ symptoms such as headaches, fatigue and a lack of attention when removed from coffee-addicts’ diets.

How much is healthy?

Caffeine is by no means a nutrient; you do not need it to be healthy. ____, it is a substance that can leave you lacking nutrients because it has been shown to reduce calcium (). Caffeine probably causes the body to release water. And the more caffeinated drinks you consume, the less likely you are to drink water. So experts say that adolescents should consume ____ amounts of caffeine a day (≤100 mg).

Caffeine’s ____

According to the Centers for Disease Control and Prevention, about 65 percent of middle and higher schoolers are ____ to insufficient sleep on school nights. Some of their sleep problems can be mainly attributed to (归因于) caffeine, which can remain in the body for seven hours after ____, thus causing teens’ worse performance the next day. It is widely assumed that adequate sleep ____ proper growth and brain development. During childhood and adolescence, the brain goes through a period called synaptic pruning (突触修剪) when unnecessary connections are promoted.

Caffeine labelling

Caffeine is not listed on the Nutrition Facts column on food labels because it is not a ____. It may be listed as an ingredient, but the amount is not required. Caffeine is now added to foods such as gum, candy and water, along with makeup and beauty products that ____ to reduce swelling (肿块).

Taste preferences and eating habits are often cultivated in childhood and adolescence, so teens, when you consume sweet, caffeinated drinks every time you feel sluggish (无精打采的), you are creating a pattern that may be hard to break as an adult. It is advisable to come up with other ____ ways to boost energy so that you can master adulting better than many adults.

1.A. potentially    B. necessarily    C. developmentally    D. materially

2.A. mature    B. experienced    C. productive    D. disciplined

3.A. delight    B. frustrate    C. liberate    D. exclude

4.A. promote    B. assist    C. intensify    D. discourage

5.A. call for    B. account for    C. turn to    D. appeal to

6.A. withdrawal    B. addiction    C. nutrition    D. infection

7.A. Therefore    B. Instead    C. Moreover    D. Otherwise

8.A. initial    B. sufficient    C. moderate    D. stable

9.A. reputations    B. confirmations    C. implications    D. disadvantages

10.A. subjected    B. alerted    C. reduced    D. opposed

11.A. stimulation    B. concentration    C. excitement    D. consumption

12.A. results from    B. contributes to    C. benefits from    D. attends to

13.A. therapy    B. material    C. nutrient    D. substitute

14.A. fail    B. appear    C. promise    D. happen

15.A. instructive    B. comprehensive    C. extensive    D. alternative

 

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Always the _____ , Franklin believed the practice of moving the time could save on the use of candlelight, as candles were expensive at the time.

A.journalist B.physicist C.chemist D.economist

 

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Heat exhaustion is generally_____ by sweaty skin, tiredness, sickness, dizziness and sometimes fainting, resulting from an inadequate intake of water and the loss of fluids.

A.featured B.characterized C.distinct D.typical

 

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The human body can tolerate only a small range of temperature, _____ when the person is engaged in vigorous activity.

A.essentially B.specially C.generally D.especially

 

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